virtual BOOL Check( RETCODE nRetCode ) const;
Return Value
Nonzero if the value of nRetCode is SQL_SUCCESS, SQL_SUCCESS_WITH_INFO, SQL_NO_DATA_FOUND or SQL_NEED_DATA; otherwise 0.
Parameters
nRetCode
An ODBC API function return code. For details, see Remarks.
Remarks
Call this member function to examine the return code from an ODBC API function. The following table lists the possible values for nRetCode.
| nRetCode | Description |
| SQL_SUCCESS | Function completed successfully; no additional information is available. |
| SQL_SUCCESS_WITH_INFO | Function completed successfully, possibly with a nonfatal error. Additional information can be obtained by calling SQLError. |
| SQL_NO_DATA_FOUND | All rows from the result set have been fetched. |
| SQL_ERROR | Function failed. Additional information can be obtained by calling SQLError. |
| SQL_INVALID_HANDLE | Function failed due to an invalid environment handle, connection handle, or statement handle. This indicates a programming error. No additional information is available from SQLError. |
| SQL_STILL_EXECUTING | A function that was started asynchronously is still executing. Note that by default, MFC will never pass this value to Check because MFC uses only synchronous processing. |
| SQL_NEED_DATA | While processing a statement, the driver determined that the application needs to send parameter data values. |
For more information about SQLError, see the ODBC SDK Programmer's Reference.
Example
See the macro AFX_ODBC_CALL.
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See Also AFX_ODBC_CALL