MySQL Database learning

/*1. Create a database*/CREATE DATABASEifNot exists test_01;/*2. Querying all Databases*/show databases;/*3. Using the database*/Use test_01;/*4. Create a table*/CREATE TABLEifNot exists Baseuser (Idint, UserName varchar ( -), Userpwd varchar ( -), ageint, sex bit, address varchar ( -));/*5. Deleting a database*/drop database MySQL;/*6 Deleting a table*/drop table Baseuser;/*7. query field type*/desc Baseuser;/*8. Querying all Data*/Select* fromBaseuser;/*9. Inserting Data*/INSERT INTO Baseuser (id,username,userpwd,age,sex,address) VALUES (2,'Wow Gold','123', -,true,'Baoji');