連接數據庫mysql> mysql -u root -p
查看庫:mysql> show databases;創建庫:mysql> create database test;選擇庫:mysql> use test;刪除庫:mysql> drop database test;
創表:
mysql> create table class (-> stu int,-> name varchar(20),-> age int,-> area varchar(20)-> );
增刪改查語句:改表:mysql> rename table class to newclass;
查表:mysql> desc newclass;
刪表:mysql> drop table newclass;
增:mysql> insert into msg
-> (id,name,title)
-> values
-> (18,'xxx','aaa');
Query OK, 1 row affected (0.05 sec)
刪:mysql> delete from msg where id = 10;
mysql> select * from msg;
+------+------+-------+
| id | name | title |
+------+------+-------+
| 18 | xxx | aaa |
+------+------+-------+
1 row in set (0.00 sec)
改:mysql> update msg
-> set
-> id = 19,
-> name = 'bbb'
-> where
-> name ='xxx';
Query OK, 1 row affected (0.12 sec)
查:mysql> select * from msg where id > 20;
mysql> select name from msg where id = 20;