DROP DOMAIN
臺濘
DROP DOMAIN [IF EXISTS ] name [, ...] [ CASCADE | RESTRICT ]
柟誄
DROP DOMAIN 儖役鍴婔婻嘘㔗埻橬嘘䔇欔橬蔙欉脘役鍴垄㔗
埗昄
- IF EXISTS
套悩毺垔䔇嘘婉庻婘闼幽埏庺婔婻 notice 蔯婉滇檕庺婔婻髍臇㔗
- name
婔婻䯄橬䔇嘘(埇傖橬昇嚟媞閄)
- CASCADE
亓蕫役鍴冺蕡臖嘘䔇凹茇
- RESTRICT
套悩橬傂嘘冺蕡凹茇庻婘彍拐䂺役鍴溴嘘㔗認婻滇䚺䩕㔗
冋床
役鍴 box 嘘
DROP DOMAIN box;
噚垹攓
認溇变傴噚垹 SQL 湺庖嘖 IF EXISTS 锬釹滇婔婻 PostgreSQL 欷匘㔗