odbc_specialcolumns
(PHP 4, PHP 5)
odbc_specialcolumns — Retrieves special columns
Description
resource odbc_specialcolumns
( resource
$connection_id
, int $type
, string $qualifier
, string $owner
, string $table
, int $scope
, int $nullable
)Retrieves 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.
-
owner
-
The owner.
-
table
-
The table.
-
scope
-
The scope, which orders the result set.
-
nullable
-
The nullable option.
Return Values
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
- PHP Руководство
- Функции по категориям
- Индекс функций
- Справочник функций
- Расширения для работы с базами данных
- Уровни абстракции
- ODBC (Unified)
- odbc_autocommit
- odbc_binmode
- odbc_close_all
- odbc_close
- odbc_columnprivileges
- odbc_columns
- odbc_commit
- odbc_connect
- odbc_cursor
- odbc_data_source
- odbc_do
- odbc_error
- odbc_errormsg
- odbc_exec
- odbc_execute
- odbc_fetch_array
- odbc_fetch_into
- odbc_fetch_object
- odbc_fetch_row
- odbc_field_len
- odbc_field_name
- odbc_field_num
- odbc_field_precision
- odbc_field_scale
- odbc_field_type
- odbc_foreignkeys
- odbc_free_result
- odbc_gettypeinfo
- odbc_longreadlen
- odbc_next_result
- odbc_num_fields
- odbc_num_rows
- odbc_pconnect
- odbc_prepare
- odbc_primarykeys
- odbc_procedurecolumns
- odbc_procedures
- odbc_result_all
- odbc_result
- odbc_rollback
- odbc_setoption
- odbc_specialcolumns
- odbc_statistics
- odbc_tableprivileges
- odbc_tables
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