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SQLBindParameter

Updated at: Jul 15, 2020 GMT+08:00

Function

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

Prototype

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SQLRETURN SQLBindParameter(SQLHSTMT       StatementHandle,    
                           SQLUSMALLINT   ParameterNumber,     
                           SQLSMALLINT    InputOutputType,
                           SQLSMALLINT    ValuetType,
                           SQLSMALLINT    ParameterType,
                           SQLSMALLINT    ColumnSize,
                           SQLSMALLINT    DecimalDigits,
                           SQLPOINTER     ParameterValuePtr,
                           SQLINTEGER     BufferLength,
                           SQLINTEGER     *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.

Examples

See Examples.

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