之前一直用Navicat Premium鏈接數據庫，其實在xshell也可以鏈接數據庫，本文將先介紹如何用xshell鏈接數據庫的方法。
1.打開xshell，連接上
輸入指令：mysql -h 192.168.10.120 -u root -p 回車,-h后面是數據庫hostname，-u后面是數據庫用戶名，-p后面是密碼
1 root@VM-0-12-centos[14:05:47]:~ 2 $ mysql -h ** -u ** -p 3 Enter password: 4 Welcome to the MySQL monitor. Commands end with ; or \g. 5 Your MySQL connection id is 52674 6 Server version: 5.6.25 Source distribution 7 8 Copyright (c) 2000, 2021, Oracle and/or its affiliates. All rights reserved. 9 10 Oracle is a registered trademark of Oracle Corporation and/or its 11 affiliates. Other names may be trademarks of their respective 12 owners. 13 14 Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. 15 16 mysql>
這樣就表示連接上了。里面輸入SQL語句就和MySQL一樣使用，注意SQL語句的結尾分號“;”必須有！，否則會報錯。
1 #查看數據庫 2 mysql> show databases; 3 +--------------------+ 4 | Database | 5 +--------------------+ 6 | n_schema | 7 | ao_students | 8 | students | 9 | aoshi | 10 | test_ab | 11 +--------------------+ 12 5 rows in set (0.02 sec)
2.查看數據表：
1 mysql> use test_ab; 2 Reading table information for completion of table and column names 3 You can turn off this feature to get a quicker startup with -A 4 5 Database changed 6 mysql> show tables; 7 +-------------------+ 8 | Tables_in_test_ab | 9 +-------------------+ 10 | mytb1 | 11 | tb | 12 | tb_emp1 | 13 | tb_emp2 | 14 | tg | 15 | tt | 16 | tt1 | 17 | ty | 18 +-------------------+ 19 8 rows in set (0.03 sec)
表格查詢：
1 mysql> select * from ty; 2 +----+--------------+--------+-------+ 3 | id | nam | deptid | slary | 4 +----+--------------+--------+-------+ 5 | 1 | 嗯嗯呃呃 | 1 | 20000 | 6 | 2 | | 2 | 33434 | 7 | 3 | 嗯嗯 | 1 | 20000 | 8 | 4 | 開 | 2 | 33434 | 9 | 5 | erew | 1 | 20000 | 10 | 6 | | 2 | 33434 | 11 | 7 | | 5 | 25000 | 12 | 8 | 張三 | 1 | 20000 | 13 | 9 | 李四 | 2 | 33434 | 14 | 10 | 王五 | 1 | 20000 | 15 | 11 | 人 | 2 | 33434 | 16 | 12 | 有 | 1 | 20000 | 17 | 13 | | 5 | 25000 | 18 | 14 | 張三 | 3 | 1984 | 19 | 15 | 李四 | 45 | 1982 | 20 | 16 | 王五 | 76 | 1982 | 21 | 17 | 人 | 48 | 1988 | 22 | 18 | 有 | 90 | 1928 | 23 | 19 | | 23 | 1988 | 24 +----+--------------+--------+-------+ 25 19 rows in set (0.03 sec)
出現中文亂碼問題，可以用以下命令臨時解決，為什么是臨時解決？重新登入后還是有有亂碼問題。表格沒有對齊—現在各大網站還沒有更好的解決方案。
1 mysql> set names utf8; 2 Query OK, 0 rows affected (0.03 sec)
今天先寫這些，后面再更。