SAP Knowledge Base Article - Preview

3709949 - Error 'The columns "XXX" and "COUNT(" cannot be mixed in the operation "UNION", since their types are not compatible.' happens when executing SQL statement in ADT

Symptom

Error 'The columns "XXX" and "COUNT(" cannot be mixed in the operation "UNION", since their types are not compatible.' happens when executing SQL statement in ADT, even though COUNT is not used in the SQL statement.


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Environment

  • SAP Netweaver Release 750
  • ABAP Development Tools

Product

SAP ERP 6.0 ; SAP NetWeaver 7.5

Keywords

ADT, ABAP Development Tools, SQL Console, SQL statement, SELECT, UNION, COUNT , KBA , BC-DWB-AIE-DP , Data Preview in ABAP Development Tools in Eclipse , Problem

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