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about db2 store procedure

Posted on 2004-08-15
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Last Modified: 2013-11-20
i create a store procedure  in db2 ,it have two parameter :one is input ,the other is output,i dont know how to call this store procedure in visual c++!who can give some information ?thanks
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Question by:fyf7262284
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itsmeandnobodyelse earned 160 total points
ID: 11815315
Look at this sample of MSDN:

SQLUINTEGER PartID;
SQLINTEGER  PartIDInd = 0;

// Bind the parameter.
SQLBindParameter(hstmt, 1, SQL_PARAM_INPUT, SQL_C_SLONG, SQL_INTEGER, 0, 0,
       &PartID, 0, PartIDInd);

// Place the department number in PartID.
PartID = 544;

// Execute the statement.
SQLExecDirect(hstmt, "{call PARTS_IN_ORDERS(?)}", SQL_NTS);

SQL_PARAM_INPUT_OUTPUT defines an argument that is input and output, while SQL_PARAM_OUTPUT defines the return value that must be declared like that:

   {?=call GetNextEmpID}

You may either use SQLPrepare + SQLExecute or SQLExecDirect to invoke Stored Procedures after defining the parametres by SQLBindParameter.

Regards, Alex
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