SQLExecDirect

Function

SQLExecDirect is used to execute a prepared SQL statement specified in this parameter. This is the fastest method for executing only one SQL statement at a time.

Prototype

SQLRETURN SQLExecDirect(SQLHSTMT         StatementHandle,
                        SQLCHAR         *StatementText,
                        SQLINTEGER       TextLength);

Parameter

Table 1 SQLExecDirect parameters

Return Value

• SQL_SUCCESS indicates that the call succeeded.
• SQL_SUCCESS_WITH_INFO indicates that some warning information is displayed.
• SQL_NEED_DATA indicates that parameters provided before executing the SQL statement are insufficient.
• SQL_ERROR indicates major errors, such as memory allocation and connection failures.
• SQL_INVALID_HANDLE indicates that invalid handles were called. This value may also be returned by other APIs.
• SQL_STILL_EXECUTING indicates that the statement is being executed.
• SQL_NO_DATA indicates that the SQL statement does not return a result set.

Precautions

If SQLExecDirect returns SQL_ERROR or SQL_SUCCESS_WITH_INFO, the application can call SQLGetDiagRec, with HandleType and Handle set to SQL_HANDLE_STMT and StatementHandle, respectively, to obtain the SQLSTATE value. The SQLSTATE value provides the detailed function calling information.

Example

See ODBC - Examples.