weird-sql / weird.sql

@ 9bd38b47c9cbd21cff081ab8464de70afdb3987e | history

-- bare select
SELECT;

-- columnless table
CREATE TABLE X();

-- weird name
ALTER TABLE X RENAME TO """";

-- ???
SELECT EXISTS(SELECT);

-- ????
SELECT * FROM (SELECT) X;

-- select expression not evaluated in EXISTS
SELECT EXISTS(SELECT 1/0 FROM """");

-- "successful insert" into table with FALSE check
ALTER TABLE """" ADD CONSTRAINT X CHECK (FALSE);
INSERT INTO """" SELECT * FROM """";

-- returns 1
SELECT COUNT(*);

-- what transaction?
ROLLBACK;
COMMIT;

-- select table alias instead of columns
SELECT X FROM """" AS X;