odbc_specialcolumns
(PHP 4, PHP 5, PHP 7)
odbc_specialcolumns — Retrieves special columns
Description
$connection_id
, int $type
, string $qualifier
, string $table
, int $scope
, int $nullable
) : resourceRetrieves 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.
Parameters
-
connection_id
-
The ODBC connection identifier, see odbc_connect() for details.
-
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 isSQL_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.
-
table
-
The table.
-
scope
-
The scope, which orders the result set.
-
nullable
-
The nullable option.
English translation
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Document created the 30/01/2003, last modified the 26/10/2018
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References
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