db2_special_columns
(PECL ibm_db2:1.0-1.6.2)
db2_special_columns — Returns a result set listing the unique row identifier columns for a table
Описание
Returns a result set listing the unique row identifier columns for a table.
Список параметров
- connection
-
A valid connection to an IBM DB2, Cloudscape, or Apache Derby database.
- qualifier
-
A qualifier for DB2 databases running on OS/390 or z/OS servers. For other databases, pass NULL or an empty string.
- schema
-
The schema which contains the tables.
- table_name
-
The name of the table.
- scope
-
Integer value representing the minimum duration for which the unique row identifier is valid. This can be one of the following values:
Integer value SQL constant Description 0 SQL_SCOPE_CURROW Row identifier is valid only while the cursor is positioned on the row. 1 SQL_SCOPE_TRANSACTION Row identifier is valid for the duration of the transaction. 2 SQL_SCOPE_SESSION Row identifier is valid for the duration of the connection.
Возвращаемые значения
Returns a statement resource with a result set containing rows with unique row identifier information for a table. The rows are composed of the following columns:
| Column name | Description | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SCOPE |
|