SQLBindParameter

Function

SQLBindParameter is used to associate (bind) parameter markers in an SQL statement to a buffer.

Prototype

SQLRETURN SQLBindParameter(SQLHSTMT       StatementHandle,    
                           SQLUSMALLINT   ParameterNumber,     
                           SQLSMALLINT    InputOutputType,
                           SQLSMALLINT    ValuetType,
                           SQLSMALLINT    ParameterType,
                           SQLULEN        ColumnSize,
                           SQLSMALLINT    DecimalDigits,
                           SQLPOINTER     ParameterValuePtr,
                           SQLLEN         BufferLength,
                           SQLLEN         *StrLen_or_IndPtr);

Parameter

**Table 1** SQLBindParameter
Keyword	Description
StatementHandle	Statement handle.
ParameterNumber	Parameter marker number, starting at 1 and increasing in an ascending order.
InputOutputType	Input/output type of the parameter.
ValueType	C data type of the parameter.
ParameterType	SQL data type of the parameter.
ColumnSize	Size of the column or expression of the corresponding parameter marker.
DecimalDigits	Digital number of the column or the expression of the corresponding parameter marker.
ParameterValuePtr	Pointer to the storage parameter buffer.
BufferLength	Size of the ParameterValuePtr buffer in bytes.
StrLen_or_IndPtr	Pointer to the length or indicator of the buffer. If StrLen_or_IndPtr is null, no length or indicator is used.

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 SQLBindCol returns SQL_ERROR or SQL_SUCCESS_WITH_INFO, the application can then 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.