# odbc_primarykeys

(PHP 4, PHP 5, PHP 7)

odbc_primarykeys — Gets the primary keys for a table

### 说明

odbc_primarykeys ( resource `$connection_id` , string `$qualifier` , string `$owner` , string `$table` ) : resource

Returns a result identifier that can be used to fetch the column names that comprise the primary key for a table.

### 参数

`connection_id`

  ODBC 连接标识符，详见 odbc_connect()。

`qualifier`

`owner`

`table`

### 返回值

Returns an ODBC result identifier 或者在失败时返回 `FALSE`.

The result set has the following columns:

- TABLE_QUALIFIER
- TABLE_OWNER
- TABLE_NAME
- COLUMN_NAME
- KEY_SEQ
- PK_NAME