--創建刪除所有表的存儲過程
CREATE OR REPLACE FUNCTION delAllTable()
RETURNS void
AS
$BODY$
DECLARE
tmp VARCHAR(512);
DECLARE names CURSOR FOR
select tablename from pg_tables where tableowner='wxdch';
BEGIN
FOR stmt IN names LOOP
tmp := 'DROP TABLE '|| quote_ident(stmt.tablename) || ' CASCADE;';
RAISE NOTICE 'notice: %', tmp;
EXECUTE 'DROP TABLE '|| quote_ident(stmt.tablename) || ' CASCADE;';
END LOOP;
RAISE NOTICE 'finished .....';
END;
$BODY$ LANGUAGE 'plpgsql' VOLATILE;
--執行存儲過程
select * from delAllTable() as temp;

--創建刪除所有序列號的存儲過程
CREATE OR REPLACE FUNCTION delAllSeq()
RETURNS void AS
$BODY$
DECLARE
tmp VARCHAR(512);
DECLARE names CURSOR FOR
select * from pg_class where relowner=(select usesysid from pg_user where usename='wxdch') and relkind='S' ;
BEGIN
FOR stmt IN names LOOP
tmp := 'DROP sequence '|| quote_ident(stmt.relname) || ' CASCADE;';
RAISE NOTICE 'notice: %', tmp;
EXECUTE 'DROP sequence '|| quote_ident(stmt.relname) || ' CASCADE;';
END LOOP;
RAISE NOTICE 'finished .....';
END;
$BODY$
LANGUAGE 'plpgsql' VOLATILE
COST 100;
ALTER FUNCTION delAllSeq() OWNER TO postgres;
--執行存儲過程

select * from delAllSeq() as temp;

轉載于:https://blog.51cto.com/xfqxj/2055031

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