MySQL教程之基础语法（二）

2022-06-03 10:59:49

Microsoft Windows [版本 6.1.7600]
C:\Windows\system32>net stop mysql0815
MySQL0815 服务正在停止.
MySQL0815 服务已成功停止。
C:\Windows\system32>net start mysql0815
MySQL0815 服务正在启动 .
MySQL0815 服务已经启动成功。
C:\Windows\system32>mysql -h localhost -P 3306 -u root -p
Enter password: ****
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.5.15 MySQL Community Server (GPL)
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.
mysql> exit
Bye
C:\Windows\system32>mysql -h localhost -P 3306 -u root -proot
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.5.15 MySQL Community Server (GPL)
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.
mysql> exit
Bye
C:\Windows\system32>mysql -u root -proot
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 4
Server version: 5.5.15 MySQL Community Server (GPL)
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
4 rows in set (0.00 sec)
mysql> use test;
Database changed
mysql> show tables;
Empty set (0.00 sec)
mysql> show tables from mysql;
+---------------------------+
| Tables_in_mysql |
+---------------------------+
| columns_priv |
| db |
| event |
| func |
| general_log |
| help_category |
| help_keyword |
| help_relation |
| help_topic |
| host |
| ndb_binlog_index |
| plugin |
| proc |
| procs_priv |
| proxies_priv |
| servers |
| slow_log |
| tables_priv |
| time_zone |
| time_zone_leap_second |
| time_zone_name |
| time_zone_transition |
| time_zone_transition_type |
| user |
+---------------------------+
24 rows in set (0.00 sec)
mysql> select database();
+------------+
| database() |
+------------+
| test |
+------------+
1 row in set (0.00 sec)
mysql> create table stuinfo(
-> id int,
-> name varchar(20));
Query OK, 0 rows affected (0.01 sec)
mysql> show tables;
+----------------+
| Tables_in_test |
+----------------+
| stuinfo |
+----------------+
1 row in set (0.00 sec)
mysql> desc stuinfo;
+-------+-------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------+-------------+------+-----+---------+-------+
| id | int(11) | YES | | NULL | |
| name | varchar(20) | YES | | NULL | |
+-------+-------------+------+-----+---------+-------+
2 rows in set (0.00 sec)
mysql> select * from stuinfo;
Empty set (0.00 sec)
mysql> insert into stuinfo (id,name) values(1,‘john‘);
Query OK, 1 row affected (0.00 sec)
mysql> insert into stuinfo (id,name) values(2,‘rose‘);
Query OK, 1 row affected (0.00 sec)
mysql> select * from stuinfo;
+------+------+
| id | name |
+------+------+
| 1 | john |
| 2 | rose |
+------+------+
2 rows in set (0.00 sec)
mysql> update stuinfo set name=‘lilei‘ where id=1;
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> select * from stuinfo;
+------+-------+
| id | name |
+------+-------+
| 1 | lilei |
| 2 | rose |
+------+-------+
2 rows in set (0.00 sec)
mysql> delete from stuinfo where id=1;
Query OK, 1 row affected (0.00 sec)
mysql> select * from stuinfo;
+------+------+
| id | name |
+------+------+
| 2 | rose |
+------+------+
1 row in set (0.00 sec)
mysql> select version();
+-----------+
| version() |
+-----------+
| 5.5.15 |
+-----------+
1 row in set (0.00 sec)
mysql> exit
Bye
C:\Windows\system32>mysql --version
mysql Ver 14.14 Distrib 5.5.15, for Win32 (x86)
C:\Windows\system32>mysql -V
mysql Ver 14.14 Distrib 5.5.15, for Win32 (x86)
C:\Windows\system32>mysql -uroot -p
Enter password: ****
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 5
Server version: 5.5.15 MySQL Community Server (GPL)
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.
mysql> show DATABASES;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
4 rows in set (0.00 sec)
mysql> SHOW DATABASES\g
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
4 rows in set (0.00 sec)
mysql> use test;
Database changed
mysql> select * from stuinfo;
+------+------+
| id | name |
+------+------+
| 2 | rose |
+------+------+
1 row in set (0.00 sec)
mysql> select *
-> from stuinfo;
+------+------+
| id | name |
+------+------+
| 2 | rose |
+------+------+
1 row in set (0.00 sec)
mysql> SELECT
-> *
-> FROM
-> stuinfo;
+------+------+
| id | name |
+------+------+
| 2 | rose |
+------+------+
1 row in set (0.00 sec)
mysql> select * from stuinfo;
+------+------+
| id | name |
+------+------+
| 2 | rose |
+------+------+
1 row in set (0.00 sec)
mysql> #select * from stuinfo;
mysql>

MySQL教程之基础语法（二）

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