SQL索引及视图常用语法

ALTER TABLE department  ADD INDEX dept_name_idx (name);

SHOW INDEX FROM department \G

ALTER TABLE department DROP INDEX dept_name_idx;

ALTER TABLE department ADD UNIQUE dept_name_index (name);

, )) fed_id, cust_type_cd, address, city, state, postal_code FROM customer;

;

SELECT cst.cust_id, cst.fed_id, bus.name FROM customer_vw cst INNER JOIN business bus ON cst.cust_id = bus.cust_id;

;