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SQL Server Varchar(MAX) fields
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  1. Richard Donagrandi
  2. PowerBuilder
  3. Wednesday, 7 May 2025 07:50 PM UTC

We've converted our backend db from SQL Anywhere to MS SQL Server, and any field previously a long varchar was converted to a varchar(MAX) field.

In the past, Powerbuilder would create datawindow column specifications for these fields as char(32766). 

I don't know if it's the current PB 2022 R3 3397 build or just interaction with SQL Server, but now, if we edit a datawindow SQL containing one of these fields, PB updates the column specification to char(2147483646) -- which, if it were supported, would be phenomenal -- instead, on retrieve, PB gives the bizarre cryptic error: "Decimal conversion error. Powerbuilder only supports 18 decimal digits."

The workaround, is to Edit Source on the datawindow, and change the column specification back to char(32766).

 

Vitals:

PBMaxTextSize='2147483647'

PB 2022 R3 build 3397

SQL Server 2022

Windows 11

 

Profiling API - TraceTree. BuildModel( ) returns SourcePblEr... CLOBS >32k from oracle stored procedures and PB 22r3
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