4D v13
ODBC_SQLGetDescField
- 4D ODBC Pro
-
- ODBC_Results
-
- Retrieving Results and Information, Introduction
- ODBC_SQLBindCol
- ODBC_SQLBulkOperations
- ODBC_SQLColAttribute
- ODBC_SQLDescribeCol
- ODBC_SQLFetch
- ODBC_SQLFetchScroll
- ODBC_SQLGetData
- ODBC_SQLGetDescField
- ODBC_SQLGetDescRec
- ODBC_SQLGetDiagField
- ODBC_SQLGetDiagRec
- ODBC_SQLMoreResults
- ODBC_SQLNumResultCols
- ODBC_SQLRowCount
- ODBC_SQLSetDescField
- ODBC_SQLSetDescRec
- ODBC_SQLSetPos
ODBC_SQLGetDescField
| ODBC_SQLGetDescField ( connectionID ; recNumber ; fieldIdentifier ; valuePtr ) -> Function result | ||||||||
| Parameter | Type | Description | ||||||
| connectionID | Longint |
|
Connection ID | |||||
| recNumber | Longint |
|
Descriptor record number | |||||
| fieldIdentifier | Longint |
|
Field of the descriptor whose value is to be returned | |||||
| valuePtr | Pointer |
|
Pointer to a variable to receive the descriptor information | |||||
| Function result | Longint |
|
Returns the result of the MS ODBC API function SQLGetDescField | |||||
The ODBC_SQLGetDescField command returns the current setting or value of a single field of a descriptor record.
connectionID is a valid connection ID returned by ODBC_SQLAllocConnect and a connection must be established using the ODBC_SQLConnect command.
Descriptor records are numbered from 0, with record number 0 being the bookmark record. If the fieldIdentifier argument indicates a header field, recNumber is ignored. If recNumber is less than or equal to SQL_DESC_COUNT but the row does not contain data for a column or parameter, a call to ODBC_SQLGetDescField will return the default values of the fields.
recNumber is the descriptor record number.
fieldIdentifier is the field of the descriptor whose value is to be returned.
valuePtr is a pointer to the variable in which to receive the descriptor information.
For more information, please see the SQLGetDescField function in the MS ODBC API Reference at http://msdn.microsoft.com/en-us/library/ms716370(VS.85).aspx.
SQL_SUCCESS, SQL_SUCCESS_WITH_INFO, SQL_ERROR, SQL_NO_DATA, or SQL_INVALID_HANDLE.
SQL_NO_DATA is returned if recNumber is greater than the current number of descriptor records.
Product: 4D
Theme: ODBC_Results
Number:
16957
Created: 4D ODBC Pro 2004
