Why only some users get the error: “Connection is busy with results for another command”

Question

I have a Delphi Application that is connected to a SQL Server db using SDAC component from DevArt, we have 200 installations of the software and only to a customer, with some us

Answer 1

Just wanted to correct dataol's answer and say that MARS_Connection should be set to "Yes" instead of "True" to enable Multiple Active Result Sets. At least on SQL Server 2012 if you are using a DSN file:

[ODBC]
DRIVER=SQL Server Native Client 11.0
DATABASE=MYDBNAME
WSID=
Trusted_Connection=Yes
SERVER=
MARS_Connection=Yes