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Status Under review
Workspace Db2 for z/OS
Created by Guest
Created on Apr 19, 2024

RELATED IDEAS

SQLJ Add support for use of Java Array in IN predicate

We would like to see support of Java type ARRAY for IN-LISTs.

The use case would look like:

SqljCtx sqljCtx = getSqljCtx();
Array fkpzOfflKtoIdsArray = sqljCtx.getConnection().createArrayOf("TIMESTAMP", fkpzOfflKtoIds);

FremdkontoOfflineIterator iter = null;
#sql [sqljCtx] iter = {
SELECT
FK.INR
, FK.VERTRAGS_ID
, ...
, CHAR(FK.FKPZ_OFFL_KTO_ID)
FROM FKP_OFFL_KTO FK
WHERE FK.FKPZ_OFFL_KTO_ID IN(:(fkpzOfflKtoIdsArray))
FOR FETCH ONLY
QUERYNO 21
};
return iter;

Actually this is not supported for IN predicates and brings SQLCODE -84.

com.ibm.db2.jcc.am.SqlSyntaxErrorException: DB2 SQL Error: SQLCODE=-84, SQLSTATE=42612, SQLERRMC=null, DRIVER=4.29.29

at com.ibm.db2.jcc.am.b7.a(b7.java:810) ~[db2jcc4.jar:?]

...


Workaround in the moment is to declare a global temporary table, insert all elements of the array into this table and work with

WHERE FK.FKPZ_OFFL_KTO_ID IN (SELECT ARRAY_ELEMENT FROM TEMP.ARRAY_TABLE)

Support of the Java type ARRAY for IN predicates would shorten SQLJ programs considerably and would reduce the error rate during programming.

We think, this is a frequently used programming situation.

Needed By Quarter

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