如何从PostgreSQL数据库中删除表*或*视图？

Question

我在PostgreSQL数据库中有一个表或视图的名称,需要在单个pgSQL命令中删除.我怎么能买得起？

我能够选择表单系统表来查找是否有任何具有这样名称的表但是仍然存在程序部分:

SELECT count(*) FROM pg_tables where tablename='user_statistics';

Answer 1

DROP TABLE user_statistics;

DROP VIEW user_statistics;

完整语法:

DROP TABLE

DROP VIEW

如果你想要一个完整的功能,我尝试过这样的事情:

CREATE OR REPLACE FUNCTION delete_table_or_view(objectName varchar) RETURNS integer AS $$
DECLARE
    isTable integer;
    isView integer;
BEGIN
    SELECT INTO isTable count(*) FROM pg_tables where tablename=objectName;
    SELECT INTO isView count(*) FROM pg_views where viewname=objectName;

    IF isTable = 1 THEN
        execute 'DROP TABLE ' || objectName;
        RETURN 1;
    END IF;

    IF isView = 1 THEN
        execute 'DROP VIEW ' || objectName;
        RETURN 2;
    END IF;

    RETURN 0;

END;
$$ LANGUAGE plpgsql;