sql server - ADODB RecordCount behaviour changes calling SQL stored procedure with EXEC? -

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i'm maintaining vb6 application uses sql server via adodb. rewrote lines 

sql = "exec sp_mystoredproc " & format(iparam1) & "," & format(iparam2) call rs.open(sql, cn, 1, 1)

as 

dim cmd new adodb.command cmd.commandtype = adcmdstoredproc cmd.commandtext = "sp_mystoredproc" cmd.parameters.append cmd.createparameter("@iparam1", adinteger, adparaminput, , iparam1) cmd.parameters.append cmd.createparameter("@iparam2", adinteger, adparaminput, , iparam2) cmd.activeconnection = cn rs.open cmd, , 1, 1

it looked simple..., after change, rs.recordcount returns -1.

i have fixed problem forcing cn.cursorlocation = aduseclient before rs.open statement, question is: does have idea why calling stored procedure via adodb.command of type adcmdstoredproc provides different cursor behaviour sending "exec..." statement server?


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