Troubleshooting
Problem
A data container in a report (e.g. list frame) specifies that rows are ordered (sorted) on a character column.
The order of the data differs when the report is executed using Compatible Query Mode (CQM) versus Dynamic Query Mode (DQM).
The order of the data differs when the report is executed using Compatible Query Mode (CQM) versus Dynamic Query Mode (DQM).
Symptom
A table is defined in Db2 Z where a character column is encoded as EBCIDIC.
If order is performed locally, CQM compares the character values returning the following result.
insert into TEBCDIC ( RNUM, CVCHAR ) values (1, 'A1A' );
insert into TEBCDIC ( RNUM, CVCHAR ) values (2, 'A2A' );
insert into TEBCDIC ( RNUM, CVCHAR ) values (3, 'a1a' );
insert into TEBCDIC ( RNUM, CVCHAR ) values (4, 'a2a' );
insert into TEBCDIC ( RNUM, CVCHAR ) values (5, 'B1B' );
insert into TEBCDIC ( RNUM, CVCHAR ) values (6, 'B2B' );
insert into TEBCDIC ( RNUM, CVCHAR ) values (7, 'b1b' );
insert into TEBCDIC ( RNUM, CVCHAR ) values (8, 'b2b' );
insert into TEBCDIC ( RNUM, CVCHAR ) values (9, '1a' );
insert into TEBCDIC ( RNUM, CVCHAR ) values (10, '2b' );
insert into TEBCDIC ( RNUM, CVCHAR ) values (11, null );
insert into TEBCDIC ( RNUM, CVCHAR ) values (12, '' );
insert into TEBCDIC ( RNUM, CVCHAR ) values (13, ' ' );
A query projects a result set where the data is ordered locally by CQM or DQM using the character column.
select CVCHAR, RNUM from TEBCDIC order by CVCHAR asc
If order is performed locally, CQM compares the character values returning the following result.
If order by is performed locally, DQM compares the character values returning the following result.
Document Location
Worldwide
[{"Type":"MASTER","Line of Business":{"code":"LOB76","label":"Data Platform"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSTSF6","label":"IBM Cognos Analytics"},"ARM Category":[{"code":"a8m0z0000001jkbAAA","label":"Reporting-\u003EPerformance"}],"ARM Case Number":"","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF016","label":"Linux"},{"code":"PF033","label":"Windows"}],"Version":"All Versions"},{"Product":{"code":"SS6G84","label":"IBM Cognos Analytics on Cloud"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"LOB76","label":"Data Platform"}}]
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Document Information
Modified date:
06 May 2025
UID
ibm17108889