Lu, Huayi a24ca60074 DWS DEVELOPER 811 version

Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com>
Co-authored-by: Lu, Huayi <luhuayi@huawei.com>
Co-committed-by: Lu, Huayi <luhuayi@huawei.com>

2023-01-19 13:37:49 +00:00

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SQLFreeHandle

Function

SQLFreeHandle releases resources associated with a specific environment, connection, or statement handle. It replaces the ODBC 2.x functions: SQLFreeEnv, SQLFreeConnect, and SQLFreeStmt.

Prototype

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SQLRETURN SQLFreeHandle(SQLSMALLINT   HandleType,    
                        SQLHANDLE     Handle);

Parameter

**Table 1** SQLFreeHandle parameters
Keyword	Description
HandleType	The type of handle to be freed by SQLFreeHandle. The value must be one of the following: SQL_HANDLE_ENV SQL_HANDLE_DBC SQL_HANDLE_STMT SQL_HANDLE_DESC If HandleType is not one of the preceding values, SQLFreeHandle returns SQL_INVALID_HANDLE.
Handle	The name of the handle to be freed.

Return Values

SQL_SUCCESS indicates that the call succeeded.
SQL_SUCCESS_WITH_INFO indicates some warning information is displayed.
SQL_ERROR indicates major errors, such as memory allocation and connection failures.
SQL_INVALID_HANDLE indicates that invalid handles were called. Values returned by other APIs are similar to the preceding values.

Precautions

If SQLFreeHandle returns SQL_ERROR, the handle is still valid.

Examples

See Examples.

Parent topic: ODBC Interfaces

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