MySQL创建用户，常用SQL语句以及数据库备份与恢复
mysql> create database db1; //创建库 Query OK, 1 row affected (0.01 sec)mysql> use db1; //切换库
Database changed
mysql> create table t1 (`id` int(4),`name` char(40)); //创建表及字段
Query OK, 0 rows affected (0.02 sec)
mysql> show tables;
+---------------+
| Tables_in_db1 |
+---------------+
| t1 |
+---------------+
1 row in set (0.00 sec)
mysql> select * from t1;
Empty set (0.00 sec)
mysql> quit
Bye
# mysqldump -uroot -pzlinux123456 mysql >/tmp/mysql.sql //备份
Warning: Using a password on the command line interface can be insecure.
# ls /tmp/mysql.sql
/tmp/mysql.sql
# mysql -uroot -pzlinux123456 db2 < /tmp/mysql.sql //恢复
Warning: Using a password on the command line interface can be insecure.
# mysql -uroot -pzlinux123456
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.Commands end with ; or \g.
Your MySQL connection> Server version: 5.6.36 MySQL Community Server (GPL)
Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
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> use db2 //切换到db2，查看是否恢复成功
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> show tables;
+---------------------------+
| Tables_in_db2 |
+---------------------------+
| columns_priv |
| db |
| event |
| func |
| general_log |
| help_category |
| help_keyword |
| help_relation |
| help_topic |
| innodb_index_stats |
| innodb_table_stats |
| ndb_binlog_index |
| plugin |
| proc |
| procs_priv |
| proxies_priv |
| servers |
| slave_master_info |
| slave_relay_log_info |
| slave_worker_info |
| slow_log |
| t1 |
| tables_priv |
| time_zone |
| time_zone_leap_second |
| time_zone_name |
| time_zone_transition |
| time_zone_transition_type |
| user |
+---------------------------+
29 rows in set (0.01 sec)
mysql> quit
Bye
# mysqldump -uroot -pzlinux123456 mysql user > /tmp/mysqluser.sql //备份mysql库user表
Warning: Using a password on the command line interface can be insecure.
# mysql -uroot -pzlinux123456 db1 < /tmp/mysqluser.sql //恢复到db1
Warning: Using a password on the command line interface can be insecure.
# mysql -uroot -pzlinux123456
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.Commands end with ; or \g.
Your MySQL connection> Server version: 5.6.36 MySQL Community Server (GPL)
Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
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> use db1 //查看是否成功恢复
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> show tables;
+---------------+
| Tables_in_db1 |
+---------------+
| t1 |
| user |
+---------------+
2 rows in set (0.00 sec)
mysql>
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