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SQL Server - Execute a store procedure asynchronously from Excel

Posted on 2013-10-23
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Last Modified: 2014-03-12
Set cmd = New ADODB.Command
        cmd.ActiveConnection = Cn
       
        cmd.CommandText = "TRP.FFS_Contracts_process_v1"
        cmd.CommandType = adCmdStoredProc
        cmd.Execute , , adAsyncExecute
             
        cmd.CommandText = "Update TRP.Param set F_Proj_type = 'P'"
        cmd.CommandType = adCmdText
        cmd.Execute
       
        cmd.CommandText = "TRP.sp_FFS_Projection"
        cmd.CommandType = adCmdStoredProc
        cmd.Execute , , adAsyncExecute

Could you please let me know why I'm getting an error message on this line and how to fix it?
        cmd.CommandText = "Update TRP.Param set F_Proj_type = 'P'"

Error message says "Operation cannot be performed while executing asynchronously"
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Question by:HNA071252
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8 Comments
 
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Assisted Solution

by:Éric Moreau
Éric Moreau earned 2000 total points
ID: 39595963
a single connection cannot execute multiple command at the same time.

why don't you just send the 3 queries at the same time?

        cmd.CommandText = "exec TRP.FFS_Contracts_process_v1 " +
                                              "Update TRP.Param set F_Proj_type = 'P' " +
                                              "exec TRP.sp_FFS_Projection "
        cmd.CommandType = adCmdText
        cmd.Execute , , adAsyncExecute
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Author Comment

by:HNA071252
ID: 39601642
with combining the 3 queries in one command, is it execute one after another or simultaneously? because I would need the first one done, before the 2nd, then the 3rd.
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Author Comment

by:HNA071252
ID: 39711941
Would anyone please help me with my question above?
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LVL 71

Expert Comment

by:Éric Moreau
ID: 39711986
what have you done of the 2 comments?
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Author Comment

by:HNA071252
ID: 39712078
You asked me to combine the three queries in one command:

        cmd.CommandText = "exec TRP.FFS_Contracts_process_v1 " +
                                              "Update TRP.Param set F_Proj_type = 'P' " +
                                              "exec TRP.sp_FFS_Projection "
        cmd.CommandType = adCmdText
        cmd.Execute , , adAsyncExecute

and I asked if is it execute one after another or simultaneously? Although I didn't get Error message says "Operation cannot be performed while executing asynchronously", but it didn't execute all three commands, it didn't continue on executing it in the Server but it stops when I closed Excel.
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Expert Comment

by:Éric Moreau
ID: 39712131
since it is a single command, the 3 statements will run one after the other.

try removing your adAsyncExecute
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Author Comment

by:HNA071252
ID: 39712144
If I remove adAsyncExecute, then the command cmd.Execute is hanging in Excel until it finish which can be as long as an hour and I don't want to wait in Excel, I wanted to continue executing in the Server even when I'm done with Excel but I couldn't figure how to make it work,
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Accepted Solution

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Éric Moreau earned 2000 total points
ID: 39712179
the execution stops because the connection is closed. so you need to run the command from a different context. one way of achieving this is to schedule your commands.

check the sample at http://stackoverflow.com/questions/287060/scheduled-run-of-stored-procedure-on-sql-server
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