odbc_specialcolumns
(PHP 4 )
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 optimal column or set of columns that, by retrieving
values from the column or columns, allows any row in the
specified table to be uniquely identified.
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.
|
