3022092 - convert() or cast() may fail due to error #249 depending on query plans - SAP ASE

• convert() or cast() may fail due to error #249 depending on query plans.
• For example, the following query is executed.

select * from test1
where test1.t1col1 in ( select t2col1 from test2 where t2col1 < 10 )
and convert(int, test1.t1col2) = 100

• A 249 error may be raised as below if merge join is chosen. It works fine if nested loop join is chosen.

Msg 249, Level 16, State 1:
Server '<ASE name>', Line 1:
Syntax error during explicit conversion of CHAR value 'DATA2     ' to a INT field.

• SAP Adaptive Server Enterprise 15.x
• SAP Adaptive Server Enterprise 16.0

KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , How To