Sql case when exists multiple oracle multiple row. order ) bb Oct 28, 2024 · 1.

Sql case when exists multiple oracle multiple row. id_doc, count (f. saledate AND s. UPDATE employee SET hire_date = ('1979-03-15', '1988-12-22') WHERE emp_id = ('PMA42628M', 'PSA89086M'); Appriciate any advice on this one, and by the way, I am using sql server. RequestID=a. This allows you to insert the row if it doesn't exist and ignore the row if it does exist. Oracle’s own SQL Tuning Advisor and SQL Access Advisor are powerful tools that can help analyze, recommend, and implement performance improvements for SQL queries. select * from (values (1), (2), (4542), (342)) a (id); May 8, 2013 · i have a script that i use in sql server but i need to convert it to an oracle format. Susp_Visits in your case), is that the condition (SUSP. What is Multiple Row Subquery in Oracle? When a Subquery returns more than one value is called a Multiple Row Subquery in Oracle. jobtitle, p. Dec 6, 2023 · Use EXISTS in a CASE expression then the database can short-cut the logic if the value is found in the first table (and you do not have to count all the rows, only find the first matching row): SELECT CASE WHEN EXISTS(SELECT 1 FROM table1 WHERE value = v_iTemp) OR EXISTS(SELECT 1 FROM table2 WHERE value = v_iTemp) OR EXISTS(SELECT 1 FROM table3 Otherwise, Oracle returns null. 1. Just add the Outer select to your query,. supervisor, p. Oracle SQL - Multiple return from The whole question is pretty much in the title. PL/SQL, the procedural extension of SQL in Oracle databases, provides various techniques to accomplish this task efficiently. BusinessId = CompanyMaster. Or even: select case when EXISTS ( select 1 from Products where ProductId IN (1, 10, 100) ) then 1 else 0 end as [ProductExists] Here, either of the scalar values 1 or 0 will always be returned (if no row exists). If no condition is found to be true, and an ELSE clause exists, then Oracle returns else_expr. count( case when EXISTS ( SELECT * FROM business_log bl, subject su Nov 4, 2022 · Writing SQL with multiple conditions can be an arduous task, especially if you need to make numerous checks. any idea. Just use a JOIN! UPDATE people SET has_license='Y' FROM People INNER JOIN Drivers ON Drivers. SELECT ID, NAME, (SELECT (Case when Contains(Des Oct 25, 2019 · I need to create a CASE statement that will look at the multiple rows for a 'Utility' to determine the output. id) WHEN MATCHED THEN UPDATE SET d. num = 1;. SELECT case when exists (SELECT * FROM CTE) then 'OK' else 'NOT OK' end – Rory Commented Oct 11, 2021 at 10:51 Oracle Database 23c extended CASE expressions in PL/SQL to support dangling predicates in simple CASE expression. adtid = namet. These work like regular simple CASE expressions - you have a single selector. the query is this: WHEN action_type like 'Host Group' then (select cast(name as varchar2(255)) name from Surv_List. Because I have read that EXISTS will work better thanIN and NOT EXISTS will work better than NOT IN (read this is Oracle server tunning). May 29, 2013 · For every row in RW_LN change the value of RE_LN_ID to be: the value of LN_ID in a row in RW_LN for which: the RE_PR_ID equals the original tables value of RE_LN_ID IF there exists at least one row in RW_LN for which: RE_PR_ID is the same as RE_LN_ID in the original table AND LN_ID is not null Sep 10, 2008 · UPDATE sales s SET status = 'ACTIVE' WHERE NOT EXISTS ( SELECT FROM sales s1 -- SELECT list can be empty for EXISTS WHERE s. But is it possible to apply it to multiple columns? Sample data: Type weight height A 50 10 A 60 12 B 40 8 C 30 15 My intended output: Jan 22, 2009 · The fastest way it is to use the Oracle collect function. id -- except for row itself ) AND s. name = s. If, for example, xxx is nullable, here is how you need to modify the query further: Mar 5, 2015 · You need to add the outer select for current query with the Group on the the columsn you want to do the aggrigate. Susp_Visits. group_id, t. first_name=te. In this Multiple Row Subquery, we can use the operators such as IN, ANY, ALL. Last_name = people. INSERT INTO TMP_DIM_EXCH_RT (EXCH_WH_K Jun 29, 2011 · Oracle SQL: There is the "IN" Operator in Oracle SQL which can be used for that: select namet. firstname, SUM(data. TYPE, CASE. You can use a CASE expression in any statement or clause that accepts a valid expression. I spent a long time searching and did not find one. Jan 11, 2017 · I have a table like this. Consider the following tips: Indexing: Utilize indexes on columns involved in conditions. For example, from this table name m1 Since you can only select single rows, you have to JOIN another table if you want to consider more than one. May 23, 2011 · From Oracle (but works in most SQL DBs): SELECT LASTNAME, COUNT(*) FROM STUDENTS GROUP BY LASTNAME HAVING COUNT(*) >= 3 P. 3. jobtitle=te. See the details. You can also do this: SELECT * FROM (SELECT deptno, CASE WHEN Row_number() over ( PARTITION BY deptno ORDER BY ename) = 1 THEN Stragg(ename) over ( PARTITION BY deptno ORDER BY ename ROWS BETWEEN unbounded preceding AND unbounded following) END enames FROM emp) WHERE enames IS NOT NULL Please read our previous article where we discussed Single Row Subquery in Oracle with Examples. B,A. The ROW_NUMBER() is an analytic function that assigns a sequential unique integer to each row to which it is applied, either each row in the partition or each row in the result set. Jul 6, 2015 · Some RDBMS like mysql and now SQL Server supports multiple rows insert data syntax: Insert into myTable ( c1, c2 ) values ( 1,1 ), ( 1,2 ), ; ( More details in Inserting multiple rows of data of Sql Server or inserting multirow on mysql) But don't oracle. dblogin_id, p. column1 values can be repeated (multiple rows='1', etc). 2. I have table: Sep 19, 2008 · If you want to use it in plain SQL, I would let the store procedure fill a table or temp table with the resulting rows (or go for @Tony Andrews approach). E= 030) else A. contactid HAVING COUNT(DISTINCT t. Jan 29, 2013 · where the rownum = 1 predicate allows Oracle to stop looking as soon as it finds the first matching row or. natadtid where namet. Try this one based on ROW_NUMBER() in a sub-query. The CASE expression evaluates a list of conditions and returns one of the multiple possible results. NCT_ID CONDITION NCT00531284 Multiple MyelomaNCT00531284 Lung CancerNCT00531284 Mar 3, 2021 · How to return multiple values for THEN clause in an SQL CASE expression Hi Tom,The question which i am asking might look very simple but for the past 2 days I have been trying for a solution and checking in multiple forums but couldn't get any clue. What is that SQL? Mar 13, 2009 · UPDATE Bookings SET TicketsBooked = TicketsBooked + @TicketsToBook WHERE FlightId = @Id AND TicketsMax < (TicketsBooked + @TicketsToBook) -- Here I need to insert only if the row doesn't exists. insuredname end as insuredname from prpcmain a left join prpcinsured_1 b on b. There may be more than 2 at a time and they may not be in order. See sample output below. This is a special case where the version number is same for both ACC1, 001 combination, so I need to get the TOP 1 Sep 24, 2012 · Consider using LISTAGG function in case you're on 11g: Combining SQL rows in just one row (Oracle) 1. cntr_nbr,lh. B 1 Nice Work. For Automatic mode - all the paramete Apr 28, 2015 · original query with CASE, but without COUNT. Are there any automated tools available for optimizing SQL queries in Oracle? Yes, there are various automated tools and utilities available for optimizing SQL queries in Oracle. SELECT 1 FROM dual WHERE EXISTS( SELECT 1 FROM employee WHERE name like 'kaushik%' ) where the EXISTS clause allows Oracle to stop looking as soon as it finds the first matching row. id, s. " Oct 23, 2008 · I know that I can insert multiple rows using a single statement, if I use the syntax in this answer. descr then display it, if not, then if there exists a match with case_char. Oct 7, 2015 · Ok based on the fiddle you have given i have tried these and it worked for me. Something like this should work: MERGE INTO mytable d USING (SELECT 1 id, 'x' name from dual) s ON (d. DATE DESC) AS SEQNUM FROM EVENT WHERE EVENT. Jun 16, 2011 · If each case only allows one column, then you probably need two cases: select col1,col2, case when col3='E01089001' then (select 1 from dual) else (select 2 from dual) end, case when col3='E01089001' then (select 3 from dual) else (select 4 from dual) end from Table1 where col1='A0529'; In addition, the EXISTS operator terminates the processing of the subquery once the subquery returns the first row. Oracle sql, update multiple rows using CASE. I'm creating a stored procedure when called it first checks to see if the row already exists (by comparing against two parameters) and if it does, it will update a specific column in the row and if the row doesn't exist already it will insert a new row into the table. converting the data from rows to columns. If you want to see the grade for each exam, select the case expression like a regular column: It’s a good idea to give the expression an alias. MembershipNum) is matching multiple rows in the right table, which is DATA. Below version uses EXISTS: Sep 22, 2015 · case when exists in oracle update query. Jun 16, 2011 · If each case only allows one column, then you probably need two cases: select col1,col2, case when col3='E01089001' then (select 1 from dual) else (select 2 from dual) end, case when col3='E01089001' then (select 3 from dual) else (select 4 from dual) end from Table1 where col1='A0529'; Even in Oracle (and in fact in the SQL standard), CASE is an expression that returns a single value. name,ss. How to combine multiple rows in a single row, oracle. When value in first and second row in the same column is the same or when there is value in first row and NULL in second row. I tried this: SELECT * FROM Genes GROUP BY Locus HAVING Locus='3' AND Chromosome='10' But it always returns row 3, never row 4, even when repeated. Can anybody please help me with this. It is not used for control of flow like it is in some other languages. select distinct r. see below Apr 28, 2022 · Multiple Rows Insert To insert rows into a table, you can do it one by one. ID_SUBJECT num_solved 1 1 2 NULL 3 NULL Sep 18, 2012 · If there will be no row from b to mach row from a then cross apply wont return row. NCT_ID CONDITION NCT00531284 Multiple MyelomaNCT00531284 Lung CancerNCT00531284 Oct 22, 2019 · The syntax of your query looks ok. Prior to Oracle 10g Release 2, retrieving data from XML typically involved manually parsing the XML DOM tree. Here an example: (I used a procedure instead of a function, like @Thilo did) Jun 6, 2013 · I am working on ORACLE STORED PROCEDURES and I have a doubt. postalcode from schemax. This is moderately scalable to more tags in terms of writing the SQL creation if you're generating dynamic SQL, you simple add an additional AND EXISTS clause for each tag (performance, of course, will suffer): Mar 18, 2010 · Here's a way of using a recursive common table expression to generate some empty rows, then to cross join them back onto your desired row: declare @myData table (val int) ; insert @myData values (666),(888),(777) --some dummy data ;with cte as ( select 100 as a union all select a-1 from cte where a>0 --generate 100 rows, the max recursion depth ) ,someRows as ( select top 1000 0 a from cte,cte Feb 21, 2016 · SELECT * FROM T1 WHERE EXISTS (SELECT * FROM T2 WHERE T1. People tend to think of MERGE when they want to do an "upsert" (INSERT if the row doesn't exist and UPDATE if the row does exist) but the UPDATE part is optional now so it can also be used here. In Oracle, the "dual" table always has a column called "dummy" which contains 'X'. select case when a. Updating Multiple Rows with a Single UPDATE Statement . ) Dec 3, 2013 · The following query will return all rows that contain the word "smith" anywhere in their text. Here is the example of my query: SELECT ActivityID, Hours = (CASE WHEN ActivityTypeID <> 2 THEN FieldName = (Some Aggregate Sub Query), FieldName2 = (Some other aggregate sub query) WHEN ActivityTypeID = 2 THEN FieldName = (Some Aggregate Sub Query with diff result), FieldName2 = (Some Other Aggregate Sub Query with diff result Aug 23, 2024 · 5. NetPrice, [Status] = 0 FROM Product p (NOLOCK) @VincentMalgrat: you can use an IF in PL/SQL, but not in (Oracle's) SQL. ID, CASE. First: insert into pager (PAG_ID,PAG_PARENT,PAG_NAME,PAG_ACTIVE) select 8000,0,'Multi 8000',1 from dual union all select 8001,0,'Multi 8001',1 from dual May 11, 2012 · MERGE INTO target USING ( --Source data SELECT id, some_value, 0 deleteMe FROM source --And anything that has been deleted from the source UNION ALL SELECT id, null some_value, 1 deleteMe FROM ( SELECT id FROM target MINUS SELECT id FROM source ) ) source ON (target. e 1,2,3 records) it should return 'YES'. ( Client number is consist of branch, Number, Sub Number Currency Code ) We have one big transaction table around 1 million records, having many columns, and at many places client numbers are stored from account IN (vs) EXISTS and NOT IN (vs) NOT EXISTS Hi Tom, Can you pls explain the diff between IN and EXISTS and NOT IN and NOT EXISTS. city HAVING COUNT(*) > 1 ) Apr 29, 2012 · 1A. update employee set staff_no = 'ab123' where depno = 1 i have 50 dep and within those dep i need to update 200 plus staff no. Nov 22, 2016 · I have searched this site extensively but cannot find a solution. g. I don't want to merge when value in first and second row in the same column is different. My question is this: how do I select users whose ancestors hail from multiple, specified countries? For instance, show me all users who have ancestors from England, France and Germany, and return 1 row per user that met that criteria. Here, a null or no row will be returned (if no row exists). H end as "1st Introduction to Oracle ROW_NUMBER() function. USER_ENTL_ID USER_STATUS CREATED_Date 1 S 10/20/2017 1 C 10/21/2017 1 W 10/22/2017 1 SP 10/23/2017 2 S 10/24/2017 2 C 10/25/2017 May 30, 2013 · --Does not fail on the divide by zero. Jul 22, 2017 · How to return multiple values for THEN clause in an SQL CASE expression Hi Tom,The question which i am asking might look very simple but for the past 2 days I have been trying for a solution and checking in multiple forums but couldn't get any clue. group_id ORDER BY t. lastname, data. Each WHEN clause may contain a comparison condition and the right-hand side of the formula. I'm looking for a good way to perform multi-row inserts into an Oracle 9 database. insert into TABLE_NAME (COL1,COL2) select MY_SEQ. WebData) AS WebData, SUM(data. D, case when EXISTS(select B. contactid FROM YOUR_TABLE t WHERE flag IN ('Volunteer', 'Uploaded') GROUP BY t. (select cname, address from ( select cname,address, rn=row_number() over (partition by cname order by cname) from customeraddresses ) x where rn = 1) order by cname Apr 27, 2022 · A simple option - if query you have returns desired result set - is to use it as a CTE (or a subquery) and filter rows out: with temp as -- your current query begins here (SELECT DISTINCT td. customerfirstname, addrt. Mar 3, 2021 · I am using the case statement in the cursor WHERE condition something like the below:---example select case when (l_eno is null and l_ename is null) then l_status = 'new' (l_eno is not null and l_ename is not null) then l_status = 'new' , 'sent' end from dual; I want to return l_status = 'new' , 'sent' i. department=te. last_name, p. e. Jack, Jill, Bunny The SQL CASE Expression. XMLTABLE : Convert XML Data into Rows and Columns using SQL. 2019 17 Dec 8, 2016 · You can do this using Conditional Aggregate . There's also a subtle difference between COUNT(*) and COUNT(column name): COUNT(*) will count all rows, including nulls Jun 2, 2023 · As the data for columns can vary from row to row, using a CASE SQL expression can help make your data more readable and useful to the user or to the application. Otherwise, it returns false. facility_id, p. Mar 3, 2021 · How to return multiple values for THEN clause in an SQL CASE expression Hi Tom,The question which i am asking might look very simple but for the past 2 days I have been trying for a solution and checking in multiple forums but couldn't get any clue. addresstable addrt on addrt. groups) Is there a "better" way to rewrite a SELECT clause where multiple columns use the same CASE WHEN conditions so that the conditions are only checked once? See the example below. winloginid Use: SELECT t. order ) bb Oct 28, 2024 · 1. C 1 Yes C 2 we can C 3 do C 4 this work! Output of the SQL should be - Mar 6, 2012 · Using a slightly modified version of your initial SQL as a filter, we get this: select stu_id, name, subject from student where stu_id in ( select stu_id from student group by stu_id having count(stu_id) >2 ); Nov 9, 2017 · I have an audit table maintaining the user status as an when it changes. However, I would like to combine these info into a new table which looks something like . PID FOR X IN(select paymentterm,pid Apr 28, 2015 · Hello, I have this query: SELECT. Otherwise, Oracle returns null. SQL case query with multiple statement. proposalno=a. SELECT inn. AreaSubscription WHERE AreaSubscription. ArtNo, p. Oracle EXISTS with SELECT statement example. For Automatic mode - all the paramete Jul 1, 2014 · Essentially what I am trying to do is if there exists a match for case_char. Then you could rephrase your query by adding one more condition in the WHERE clause of the subquery: Nov 18, 2013 · Using the exists operator, your subquery can return zero, one, or many rows, and the condition simply checks whether the subquery returned any rows. proposalno left Jun 14, 2018 · Use a self join on B with NOT EXISTS. I also prefer LEVEL over ROWNUM here because ROWNUM doesn't always work the way one would expect. Update with Case or If condition. Therefore, the following statement will never return a row. SELECT CASE WHEN 1/1 = 1 THEN 'Case 1' WHEN 2/0 = 1 THEN 'Case 2' END FROM dual; --Fails on the divide by zero. image_id, ROW_NUMBER() OVER (PARTITION BY t. create or replace force view v_documents_list ( id_doc, attachments_count, total_dimension, insert_date, id_state, state, id_institute, institute, hasjob ) as select d. 12. saledate = s1. Nov 23, 2010 · WHERE [NOT] EXISTS ( SELECT 1 FROM MyTable WHERE ) This will be more efficient than SELECT * since you're simply selecting the value 1 for each row, rather than all the fields. It will also give you the bit-type columns, and it works at least in MS Sql Server. e more than 1 value. The EXISTS operator terminates the query processing immediately once it finds a row, therefore, you can leverage this feature of the EXISTS operator to improve the query performance. task_id,td. value with lookup_value. name, 'smith', 1) > 0; For more details see: How does contains() in PL-SQL work? Oracle SQL "contains" clause tips; Oracle: Contains Documentation; Oracle: Contains Operators Feb 18, 2015 · How can I merge multiple rows with same ID into one row. I have a query which fetches more than 1 row and I want to store all those 3 row's values in 1 Variable. ID) WHEN MATCHED THEN --Requires a lot of ugly CASE statements, to prevent updating deleted data UPDATE SET target For an example that uses a correlated subquery to update nested table rows, refer to "Table Collections: Examples". Evaluates a list of conditions and returns one of multiple possible result expressions. The following example returns values from the updated row and stores the result in PL/SQL variables bnd1, bnd2, bnd3: Oct 25, 2016 · Oracle SQL CASE statement checking multiple conditions. Nov 12, 2013 · There are no standard aggregate functions in Oracle that would work with BLOBs, so GROUP BY solutions won't work. insert into fruits values ('Apple', 2); insert into fruits values ('Banana', 1); insert into fruits values ('Cherry', 5); We can also insert multi-row data in a statement. The table is something like below. This should be valid AFAIK. userID and desig = 'E' join department d2 on d2. city, addrt. userId = 'it18' Aug 25, 2018 · WHERE CASE returning multiple rows. ID = source. 2. b Multiple IN This will give you one row of each duplicate row. Jan 19, 2012 · select * from some_table fetch first 1 row only; select * from some_table fetch first 1 rows only; select * from some_table fetch first 10 row only; select * from some_table fetch first 10 rows only; ^^I just wanted to demonstrate that either row or rows (plural) can be used regardless of the plurality of the desired number of rows. Aug 19, 2011 · I'm trying to do a query with a case when condition to see what list I will show but I'm having this error ORA-01427: single-row subquery returns more than one row. SELECT * FROM T1 LEFT SEMI JOIN T2 ON T1. select * from dual where dummy='123'; Mar 15, 2013 · It would be much clearer to write this query using JOIN:. PID A B C Table B. 0. Oracle CASE expression allows you to add if-else logic to SQL statements without having to call a procedure. , SELECT * FROM Table1 WHERE (A,B,C) NOT IN ( SELECT /*+ HASH_AJ */ A,B,C FROM Table2 WHERE A IS NOT NULL AND B IS NOT NULL AND C IS NOT NULL ) Nov 11, 2015 · MERGE doesn't need "multiple tables", but it does need a query as the source. SELECT * FROM dbo. You need two different CASE statements to do this. In a searched CASE expression, Oracle searches from left to right until it finds an occurrence of condition that is true, and then returns return_expr. Jan 29, 2015 · B. email_id, p. DATE_RAISED, MIN_E. If you want to use @Thilo's solution, you have to loop the cursor using PL/SQL. SELECT score(1), p. [Description], p. countid) AS Countid FROM ( SELECT id,lastname, firstname,datasource, CASE WHEN Datasource = 'Web' THEN Count Dec 19, 2009 · Now I would like to add another column to the query that states if at least one row with that ID exists in the new table. The following statement deletes a row whose order id is 1 and item id is 1: DELETE FROM sales WHERE order_id = 1 AND item_id = 1; Code language: SQL (Structured Query Language) (sql) Oracle returned the following message: 1 row deleted. So if I have one of the old tables ID 1 2 3 A small addendum: I have found that Oracle (11gR1 in my case) refuses to hash anti join when the NOT IN clause contains more than one column, e. qty_pulld) over (partition by td Apr 12, 2021 · select A. group_id, inn. 11. supervisor=te. value = 'Solved' ) then 1 else null end num_solved FROM subject s returns. char in ('B', 'C', 'D')); You might want to start using ANSI join syntax as well: Mar 24, 2014 · This works well until the sub-select returns multiple rows. Regards,Madhusudhana Rao. -- If the row exists but the condition TicketsMax is violated, I must not insert -- the row and return FALSE IF @@ROWCOUNT = 0 BEGIN INSERT INTO Jun 22, 2012 · "so when i have 8 Exists clauses, it runs internally as 8 different queries, and in effect it takes more time - single segment in the entire union query takes only 560 ms whereas all queries together takes around 7 seconds to generate the output. You may use the IN, ANY, or ALL operator in outer query to handle a subquery that returns multiple rows. If the column ( ModifiedByUSer here) does exist then I want to return a 1 or a true ; if it doesn't then I want to return a 0 or a false (or something similar that can be interpreted in C#). InternalData) AS InternalData, SUM(data. If all rows for a specific 'Utility' do have a 'todate', I want the value to be Try this if you want to display one of duplicate rows based on RequestID and CreatedDate and show the latest HistoryStatus. However, one of the values I am inserting is taken from a sequence, i. If the first condition is satisfied, the query May 7, 2018 · 23c or later: The table values constructor, VALUES, provides an easier way to return multiple rows. v = a. See the following customers and orders tables in the sample database: Nov 20, 2015 · i'm using the following query to create a view in oracle 11g (11. DATE_RAISED > DATE '2019-01-01' AND MIN_E. SELECT CASE WHEN 1/1 = 99 THEN 'Case 1' WHEN 2/0 = 99 THEN 'Case 2' END FROM dual; This same test can't be done with MySQL because it returns NULL for division by zero. This is particularly important if the case is in a subquery. Thanks I would use EXISTS subquery with HAVING. can anyone help? update persons p set p. P EXISTS (subquery) Code language: SQL (Structured Query Language) (sql) The EXISTS operator returns true if the subquery contains any rows. status IS DISTINCT FROM 'ACTIVE'; -- avoid empty updates. dimension) end as total_dimension, d. Sorry about bad news. image_id) num FROM theTable t ) inn WHERE inn. The following illustrates the syntax of the ROW_NUMBER() function: ROW_NUMBER() OVER ( [query_partition_clause] order Oct 23, 2024 · Updating multiple rows simultaneously is a common requirement in database management, especially when handling large datasets. Optimizing queries involving Multiple CASE WHEN statements is crucial for efficient database operations. name WHEN NOT MATCHED THEN INSERT (id, name) VALUES (s. facility_id=te. email_id=te. *, ROW_NUMBER() OVER (PARTITION BY EVENT. v order by b. Case Statement having no effect on output. Therefore, it can't be used to conditionally decide among multiple columns or other operations. Jun 18, 2011 · Update table with multiple columns from another table ? Hi Tom,Due to migration to new system we have to change all our account numbers. orig_reqmt,td. Khan's answer a year later is more on point, though honestly I prefer CASE over DECODE-- DECODE is more compact but IMO CASE is more readable. NCT_ID CONDITION NCT00531284 Multiple MyelomaNCT00531284 Lung CancerNCT00531284 Jan 29, 2014 · the below FOR loop doesn't work. 6. WHEN EXISTS (SELECT 1 FROM Table1 as t1 The only way your query would return more number of rows than the left table ( which is SUSP. What I'm trying to do is use more than one CASE WHEN condition for the same column. SELECT data. y, b. insuredname else b. STUDENT_DETAILS WHERE CLASS_ID= 'C'; Here this query fetches 3 names. SQL case statement on multiple rows. The following works in MySQL but doesn't seem to be supported in Oracle. insuredcode else b. AreaId FROM @Areas) Jul 11, 2016 · I look for a working example where I can use mutliple when case statment wihch check to verify if a specific text is contained: e. SELECT CASE WHEN EXISTS (SELECT * FROM test WHERE b IS NULL) THEN 1 ELSE 0 END AS B, CASE WHEN EXISTS (SELECT * FROM test WHERE c IS NULL) THEN 1 ELSE 0 END AS C ; ----- Times in ms (2008R2): 1344 - 596 - 1 Times in ms (2012): 26 - 14 - 2 Oct 9, 2016 · A CASE statement can return only single column not multiple columns. image_id FROM ( SELECT t. MemID = DATA. image, t. This feature does not require any predefined collection, and it can also be used to return multiple columns per row if desired. name = ss. Everything else is "just" SQL. dept and d2. parent_item child_item quantity A B 2 A C 3 B E 1 B F 2 Here is a standalone proof-of-concept in Oracle, which returns a real value instead of NULL. city FROM stuff s WHERE EXISTS ( SELECT 1 FROM stuff ss WHERE s. first_name, p. RequestID) Jun 16, 2012 · Query with 2 EXISTS subqueries. CASE_ID ORDER BY EVENT. PL/SQL in Oracle is only applicable in stored procedures. saleprice AND s. b=T2. Here is my code for the query: SELECT Url='', p. . 0. Oracle EXISTS examples. In the discussion about multiple row insert into the Oracle two approaches were demonstrated:. id_subject = s. I want to update PAYMENT in table t1 from table t2 where t1. I want to aggregate table 1 to get table 2 based on email id. E= 030) then (select B. Using EXISTs is (in my opinion, anyway) clear because it matches what you're trying to do — checking for existence of rows. image, inn. First_name = people. orig_reqmt) and ((SUM(td. For example, rows 3 and 4. with t as (select row_number()over(partition by RequestID,CreatedDate order by RequestID) as rnum,* from tbltmp) Select RequestID,CreatedDate,HistoryStatus from t a where rnum in (SELECT Max(rnum) FROM t GROUP BY RequestID,CreatedDate having t. dsp_locn AS pull_locn,td. we can try to add columns which you want to mark duplicate in a subquery. dept = d. In this case, the table you're "self-joining" lineups, retrieving the value from one row based on conditions from another row (of course it doesn't matter whose leagueid you take because they're identical). city GROUP BY ss. Oct 8, 2012 · Concatenate multiple results into one row When I query a database that includes a particular field (Condition), it returns multiple rows of Conditions associated with the same result from another column (NCT_ID). userlevel=te. SQL CASE Statement Syntax. 2019 15 B 30. It’s quite common if you’re writing complicated queries or doing any kind of ETL work. If you look at the select clause of the subquery, you will see that it consists of a single literal (1); since the condition in the containing query only needs to know how many rows have been Aug 27, 2015 · In plsql exists two type of case statement. Introduction to Oracle CASE expression. insert_date Oct 20, 2017 · If they are all different tables then this may be your best case scenario. name FROM person p WHERE CONTAINS(p. select itemname from A, b where a. If none of the WHEN THEN pairs meet this condition, and an ELSE clause exists, then Oracle returns else_expr. My QUERY goes like this : SELECT STUDENT_NAME FROM STUDENT. UNLESS Table1. If that happens an ORA-01427 exception is thrown. If you need to find only one specific row for each of row from a, try: cross apply ( select top 1 b. 2019 20 C 22. PID=t2. first_name AND Drivers. Mar 18, 2011 · I would like to combine insert/update with a case statement, meaning that I want to insert the row if it doesnt exist, update it if it does, but in both cases with different values (when updating it depends on the id) and when inserting, well then I set it And this should happen in a single SQL statement :-) Feb 19, 2015 · I would like to update multiple rows with different values for all different records, but don't have any idea how to do that, i am using below sql to update for single record but i have 200 plus records to update. Code language: SQL (Structured Query Language) (sql) B) Oracle DELETE – delete multiple rows from a table Mar 22, 2012 · This is expected to return rows that exist in Main_Table but do not have matching rows in Some_Table, assuming the columns xxx, etc. The more close way is documented on Tech on the Net. com In a simple CASE expression, Oracle Database searches for the first WHEN THEN pair for which expr is equal to comparison_expr and returns return_expr. nextval,'some value' from dual union all select MY_SEQ. Aug 7, 2013 · This may help you. value and char_value. customerfirstname in ('David', 'Moses', 'Robi'); 5. Oracle Database uses short-circuit Jul 2, 2015 · In Oracle, you can do a delete from an in-line view, but it generally needs a foreign key that ensures that a row from the table from which the row is deleted cannot be represented by more than one row in the view. userId = r. a and T1. city = ss. nametable namet join schemax. it's faster one, because you have no Select withing Select methods here Feb 28, 2017 · When you insert/update multiple rows into a table, the Inserted temporary table used by the system holds all of the values from all of the rows that were inserted or updated. The CASE expression goes through conditions and returns a value when the first condition is met (like an if-then-else statement). oracle update with case statement Neither worked. a=T2. itemnum and not exists( select 1 from b2 where b2. I have two columns PID, PAYMENT in table t1 and table t2. department, p. I have a scenario where I have to run a report in automatic and manual mode. name,s. Why is my Nested Loops join showing inaccurate row estimates in SQL Server? Feb 11, 2012 · I'd like to select all rows with the same locus and chromosome. Sep 18, 2019 · There are no rows displayed for table 2 as 0 amount was made. pull_locn_id)) < td. winloginid=te. Let’s take some examples of using EXISTS operator to see how it works. C,A. flag) = 2 Oct 15, 2020 · Is it possible to write a single SQL query that would concatenate multiple rows into a single row with multiple columns? For example, I have a table with the following data: TYPE DATE AMOUNT ----- B 30. CASE Jun 25, 2020 · EXISTS and NOT EXISTS Operator in Oracle SQL, oracle not exists performance, oracle not exists example, not exists in oracle with multiple columns, oracle exists example, oracle check if row exists before insert, case when exists oracle, oracle exists vs in, oracle sql not in subquery,oracle exists vs in, not exists oracle sql, case when exists oracle, oracle check if record exists, oracle not Would it be possible to construct SQL to concatenate column values from multiple rows? The following is an example: Table A. May 22, 2013 · I'm using a SQL server statement embedded in some other C# code; and simply want to check if a column exists in my table. Oracle PLSQL case statement. name); May 8, 2019 · Is this what you mean? I just rewrote Gordon's answer with old Oracle join syntax and your code style. For example, an if else if else {} check case expression handles all SQL conditionals. Specification, CASE WHEN 1 = 1 or 1 = 1 THEN 1 ELSE 0 END as Qty, p. Dim_Member. But since your stated: I'm trying to write a sub select which I need to return a 1 if Sale_Date= 1 and 0 for anything else. S. May 22, 2024 · Multiple row subquery returns one or more rows to the outer SQL statement. CompanyMaster WHERE AreaId= (CASE WHEN EXISTS (SELECT BusinessId FROM dbo. I've tried to remedy this by using the IN or ANY statements, but looks to me like the CASE expression simply is unable to output sets of multiple values. SELECT CASE. b) LEFT SEMI JOIN (Safe, recommended for dialects that support it) This is a very concise way to join, but unfortunately most SQL dialects, including SQL server do not currently suppport it. sql rows to column conversion. id <> s1. DATE >= CURRENT_DATE ) MIN_E WHERE CASE. bar > 0) > 0 then '1' else '0') as MyFlag from mydb I know to use the EXISTS only in the WHERE clause "I only want that rows where the following SELECT gives me something". create table account( account_id number primary key, account_status varchar2(30)); insert into account values(1, '5'); insert into account values(2, '3'); insert into account values(3, '2'); select * from account update account set account_status= case when account_id=1 then '2' when account_id=2 then '5' when @jpmc26 It's an interesting thought, but I think that if I had doubts about how rownum interacted with an aggregate like this, the presence of a comment wouldn't convince me -- I must have read 1,000 bold assertions of how Oracle works that turned out to be completely wrong. Therefore, if you do an update to 6 rows, the Inserted table will also have 6 rows, and doing something like this: SET @Candidate_Post_ID = (Select ID From inserted) Home » Articles » Misc » Here. E from B join on A on xxx and B. For each row of the table I'd like to select the maximum of a subset of columns. requestID from request r join department d on d. saleprice = s1. If there is a NULL 'todate' in any row for a specific 'Utility' (Solid Waste for example) I want to create a 'Status' column with a value of 'Active'. So, once a condition is true, it will stop reading and return the result. By specifying the columns to update and the new values, along with optional conditions, administrators can perform bulk updates efficiently. Aug 4, 2023 · Concatenate multiple results into one row When I query a database that includes a particular field (Condition), it returns multiple rows of Conditions associated with the same result from another column (NCT_ID). sql function case returns more than one row. Basically I am looking for a less newbie way then the method above, if one exists. userlevel, p. 0). SELECT s. For some complex WHERE clauses, it may make sense to use it (your current one can be solved without, as @Somebody is in trouble's answer shows), but you need to structure it to return a single result value or expression: Jul 23, 2013 · This is the case for ACC1, 001 of Account_Table matches with two rows of ACC1, 001 of Bill_Table then I need to get the maximum version number of the respective Account_Num, Serial_Num combination and return that row's Bill_Date. Tips for Optimizing Queries using Multiple CASE WHEN. I know how to use Oracle pivot on one column. If you need such a rows then use outer apply. nextval,'another value' from dual ; Sep 19, 2016 · If you don't like the UNION you can use a case statement instead, e. SELECT ID_SUBJECT, case when EXISTS ( SELECT * FROM business_log bl WHERE bl. Jan 22, 2015 · Assuming you are on 10g, you can also use the MERGE statement. In that case you may want to move from subqueries to joins. qty_pulld) over (partition by td. itemnum = b. BusinessId) THEN @AreaId ELSE AreaId END) AND AreaId IN (SELECT [@Areas]. For Automatic mode - all the paramete May 29, 2014 · I have the following sample data in an Oracle table (tab1) and I am trying to convert rows to columns. Using the RETURNING Clause During UPDATE: Example. See full list on oracletutorial. char then display it. Dec 12, 2011 · This is SQL. policyno[2] in ('E', 'W') then c. A, A. The UPDATE statement in Oracle PL/SQL enables the modification of multiple rows in a single operation. name AND s. insert into fruits select 'Apple', 2 from dual … Read More »Oracle Insert Multiple Rows Jun 20, 2012 · CASE is an expression - it returns a single result of a well defined type:. desig = 'FM' and d2. z from b where b. id, data. dblogin_id=te. The syntax of the SQL CASE expression is: Jun 19, 2019 · I am trying to write a query which checks whether multiple tables have been populated, so I have to check multiple tables, in case that only one of them has 0 records then I have to return 'No' in output, otherwise if all of those tables have more than 0 (i. DATE AS MIN_EVENT_DATE FROM CASE, (SELECT EVENT. itemnum and b2. id_file) as attachments_count, case when sum (f. EDIT. PID SEQ Desc A 1 Have A 2 a nice A 3 day. id_subject AND bl. last_name=te. Table 1 is a raw table. 13. "Selector case" and "Search case". last_name In SQL Server I would just use aliases but I'm not familiar with the intricacies of SQLite syntax. Sep 28, 2012 · select foo, (case when (select count(*) from somedb x where x. Dec 7, 2023 · How to use CASE for IF-THEN logic in SQL SELECT. , are non-nullable. ID Amount_week_1 Amount_week_2 05 350 0 May I know how can I go about doing this? I have tried using the EXISTS clause but i might have used it wrongly since it didnt work. SELECT Comp_ID, Max(CASE WHEN KEY = 'Size' THEN value END) as Size, Max(CASE WHEN KEY = 'Weight' THEN value END) as Weight, Max(CASE WHEN KEY = 'Colour' THEN value END) as Colour FROM yourtable GROUP BY Comp_ID Dec 5, 2019 · Equivalent for EXISTS() in an IF statement? In the dialect for procedural SQL in MSSQL and Sybase, there's a useful little idiom for checking whether rows exist on a table, and it looks like this if exists (select 'x' from foo where bar) /* found, do something */ else /* not found, do something else */ SQL Query to concatenate column values from multiple rows in Oracle-1. dimension) is null then 0 else sum (f. id = s. qty_pulld, ( CASE WHEN ((SUM(td. A user can have multiple rows on the table, as a user can have ancestors from multiple countries. insuredcode end as insuredcode , case when a. ekuy ijyu inydaj xgtbqf nxmddy llrhd yokfpqie casbs zuqzf ujcpdy