odbc_specialcolumns
(PHP 4, PHP 5)
odbc_specialcolumns — Retrieves special columns
说明
resource odbc_specialcolumns
( resource $connection_id
, int $type
, string $qualifier
, string $owner
, string $table
, int $scope
, int $nullable
)
参数
-
connection_id
-
ODBC 连接标识符，详见
odbc_connect()。
-
type
-
When the type argument is SQL_BEST_ROWID,
odbc_specialcolumns() returns the
column or columns that uniquely identify each row in the table.
When the type argument is SQL_ROWVER,
odbc_specialcolumns() returns the column or columns in the
specified table, if any, that are automatically updated by the data source
when any value in the row is updated by any transaction.
-
qualifier
-
The qualifier.
-
owner
-
The owner.
-
table
-
The table.
-
scope
-
The scope, which orders the result set.
-
nullable
-
The nullable option.
返回值
Returns an ODBC result identifier or FALSE on
failure.
The result set has the following columns:
- SCOPE
- COLUMN_NAME
- DATA_TYPE
- TYPE_NAME
- PRECISION
- LENGTH
- SCALE
- PSEUDO_COLUMN