Fixes are available
APAR status
Closed as program error.
Error description
When a SQL scalar function is defined with BEGIN ATOMIC - i.e. Compound SQL (inlined)- and the function body contains only a single RETURN statement, a query that references this function may return a wrong result. For example, the SELECT statement below should return zero rows: CREATE TABLE T ( ID int, NAME VARCHAR(10 ) ); insert into T (ID, NAME) values (1,'FRED'), (2,'IRENE'); CREATE FUNCTION F () RETURNS INTEGER NO EXTERNAL ACTION BEGIN ATOMIC RETURN 1; -- END; SELECT * FROM T WHERE F() = (SELECT ID FROM T WHERE NAME = 'IRENE'); ID NAME ----------- ---------- 1 FRED 2 IRENE 2 record(s) selected.
Local fix
Recreate the SQL function without the BEGIN ATOMIC, e.g.: CREATE OR REPLACE FUNCTION F () RETURNS INTEGER NO EXTERNAL ACTION RETURN 1; Alternatively, recreate the function without the ATOMIC keyword - i.e. Compound SQL (compiled): CREATE FUNCTION F () RETURNS INTEGER NO EXTERNAL ACTION BEGIN RETURN 1; -- END;
Problem summary
**************************************************************** * USERS AFFECTED: * * All * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description and install this fix. * **************************************************************** * RECOMMENDATION: * * See Error Description and install this fix. * ****************************************************************
Problem conclusion
See Error Description and install this fix.
Temporary fix
Comments
APAR Information
APAR number
IT26298
Reported component name
DB2 FOR LUW
Reported component ID
DB2FORLUW
Reported release
B10
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2018-09-14
Closed date
2019-11-29
Last modified date
2019-11-29
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
DB2 FOR LUW
Fixed component ID
DB2FORLUW
Applicable component levels
RB10 PSY
UP
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Document Information
Modified date:
04 May 2022