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
SQL statement to be executed. One SQL statement can be executed at a time. | |
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 Examples.
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