# odbc_specialcolumns

(PHP 4, PHP 5)

odbc_specialcolumns — Returns either the optimal set of columns that uniquely identifies a row in the table or columns that are automatically updated when any value in the row is updated by a transaction

### Description

resource odbc_specialcolumns ( resource `$connection_id` , int `$type` , string `$qualifier` , string `$owner` , string `$table` , int `$scope` , int `$nullable` )

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.

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

The result set is ordered by SCOPE.