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[数据库]CUBRID学习笔记 21 查看主键外键索引


命令

show create table game;

game是表名 

在web管理中,请在sql标签中查,不要在query中执行.

show create table game;=== <Result of SELECT Command in Line 1> === TABLE         CREATE TABLE    ============================================ 'game'        'CREATE TABLE game (host_year INTEGER NOT NULL, event_code INTEGER NOT NULL, athlete_code INTEGER NOT NULL, stadium_code INTEGER NOT NULL, nation_code CHARACTER(3), medal CHARACTER(1), game_date DATE, CONSTRAINT pk_game_host_year_event_code_athlete_code PRIMARY KEY (host_year, event_code, athlete_code), CONSTRAINT fk_game_event_code FOREIGN KEY (event_code) REFERENCES event ON DELETE RESTRICT ON UPDATE RESTRICT, CONSTRAINT fk_game_athlete_code FOREIGN KEY (athlete_code) REFERENCES athlete ON DELETE RESTRICT ON UPDATE RESTRICT)'1 row selected.Current transaction has been committed.1 command(s) successfully processed.

可以看到外键信息如
CONSTRAINT fk_game_event_code FOREIGN KEY (event_code) REFERENCES event ON DELETE RESTRICT ON UPDATE RESTRICT, 


可以看到主键信息
CONSTRAINT pk_game_host_year_event_code_athlete_code PRIMARY KEY (host_year, event_code, athlete_code), 

换个体位看索引 ,利用主键
SELECT * FROM db_index WHERE class_name = 'game' AND is_primary_key = 'YES';