db2_primary_keys - Returns a result set listing primary keys for a table
Вернуться к: IBM DB2 Функции
db2_primary_keys
(PECL ibm_db2 >= 1.0.0)
db2_primary_keys — Returns a result set listing primary keys for a table
Описание
$connection
, string $qualifier
, string $schema
, string $table-name
)Returns a result set listing the primary keys 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
NULLor an empty string. -
schema -
The schema which contains the tables. If
schemaisNULL, db2_primary_keys() matches the schema for the current connection. -
table-name -
The name of the table.
Возвращаемые значения
Returns a statement resource with a result set containing rows describing the primary keys for the specified table. The result set is composed of the following columns:
| Column name | Description |
|---|---|
| TABLE_CAT | Name of the catalog for the table containing the primary key. The value is NULL if this table does not have catalogs. |
| TABLE_SCHEM | Name of the schema for the table containing the primary key. |
| TABLE_NAME | Name of the table containing the primary key. |
| COLUMN_NAME | Name of the column containing the primary key. |
| KEY_SEQ | 1-indexed position of the column in the key. |
| PK_NAME | The name of the primary key. |
Смотрите также
- db2_column_privileges() - Returns a result set listing the columns and associated privileges for a table
- db2_columns() - Returns a result set listing the columns and associated metadata for a table
- db2_foreign_keys() - Returns a result set listing the foreign keys for a table
- db2_procedure_columns() - Returns a result set listing stored procedure parameters
- db2_procedures() - Returns a result set listing the stored procedures registered in a database
- db2_special_columns() - Returns a result set listing the unique row identifier columns for a table
- db2_statistics() - Returns a result set listing the index and statistics for a table
- db2_table_privileges() - Returns a result set listing the tables and associated privileges in a database
- db2_tables() - Returns a result set listing the tables and associated metadata in a database
Вернуться к: IBM DB2 Функции