USE offcnoa;SELECT * FROM emp WHERE sal>2000;SELECT * FROM emp WHERE job != 'manager';SELECT * FROM emp WHERE sal>2000 AND sal
USE offcnoa;SELECT * FROM emp WHERE sal>2000;SELECT * FROM emp WHERE job != 'manager';SELECT * FROM emp WHERE sal>2000 AND sal
CREATE DATABASE a;USE a;SHOW CREATE DATABASE a;SHOW DATABASES;CREATE TABLE students( num INT, sname VARCHAR(20), sex VARCHAR(20)) DROP DATABASE a;INSERT INTO students(s...