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2124220 - 'Parameter colnum has an illegal value of 1' fails on blk_describe with SDK 16.0 - SDK for SAP ASE


  • The call 'blk_describe' fails with the error message:
    • "ClientMessageHandler error: Open Client Message:
      Message number: LAYER = 95 ORIGIN = 107 SEVERITY = 108 NUMBER = 98
      Message String: describe(): blk layer: user error: Parameter colnum has an illegal value of 1"
  • This failure occurs with SDK client library (64 bit) and the database server is ASE 15.0.3 (64 bit)
  • The exact same program runs correctly, without any issue with ASE 15.0 client library (64 bit) and ASE 15.0.3 database server (64 bit).



  • ctlibrary
  • Linux on x86_64 64 bit
  • SAP Software Developers Kit (SDK) for Adaptive Server Enterprise (ASE) 16.0 PL04


Sybase SDK 15.7 ; Sybase Software Developer Kit 15.7


SDK for SAP ASE, ctlibs, bulk describe, parameter column illegal value , KBA , BC-SYB-SDK , SDK , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem

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