RedHat下MySQL的根本應用辦法分享。本站提示廣大學習愛好者：（RedHat下MySQL的根本應用辦法分享）文章只能為提供參考，不一定能成為您想要的結果。以下是RedHat下MySQL的根本應用辦法分享正文
1. 下載RPM裝置包， 由於裝置MySQL的時刻，軟件會須要一依附關系， 所以建議把一切的裝置包下載下載， 再順次裝置所以的RPM包。
2. 在RedHat下裝置後, root暗碼為空, 設置MySQL的 root暗碼, 用上面的敕令來設置.
[nb@SIT ~]$ mysql -u root -p[newpassword]
3. 修正MySQL的root 暗碼, 用上面 的敕令:
[nb@SIT ~]$ mysqladmin -u root -p[oldpasswrod] password[newpassword]
4. 用root登錄MySQL, 輸出上面的敕令, 再輸出暗碼, 便可以以root的身份登錄到MySQL
[nb@SIT ~]$ mysql -u root -p
Enter password:
5. 湧現上面的字符， 就表現勝利登錄到了MySQL,
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 14
Server version: 5.5.14 MySQL Community Server (GPL)
Copyright (c) 2000, 2010, 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>
6. 顯示以後曾經存在的數據庫，輸出: show databases;
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
4 rows in set (0.00 sec)
7. 創立一個新的數據庫, 輸出: create database [name];
mysql> create database mytest;
Query OK, 1 row affected (0.00 sec)
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| mytest |
| performance_schema |
| test |
+--------------------+
5 rows in set (0.00 sec)
8. 刪除一個曾經存在的數據庫, 輸出: drop database [name];
mysql> drop database mytest;
Query OK, 0 rows affected (0.00 sec)
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
4 rows in set (0.00 sec)
9. 創立一張表, 輸出: create table [name] [option...]
顯示表的內容: describe [table name];
mysql> create table device
-> (
-> id int,
-> pn varchar(8),
-> descript varchar(30)
-> );
Query OK, 0 rows affected (0.01 sec)
mysql> describe device;
+----------+-------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+----------+-------------+------+-----+---------+-------+
| id | int(11) | YES | | NULL | |
| pn | varchar(8) | YES | | NULL | |
| descript | varchar(30) | YES | | NULL | |
+----------+-------------+------+-----+---------+-------+
3 rows in set (0.00 sec)
10. 向內外面添加數據, 輸出: insert into [table_name] set option1=[value], option2=[value] ...
mysql> insert into device set id=1,pn="abcd",descript="this is a good device";
Query OK, 1 row affected (0.01 sec)
mysql> insert into device set id=2,pn="efgh",descript="this is a good device";
Query OK, 1 row affected (0.00 sec)
11. 檢查內外面的內容, 輸出: select [col_name] from [table_name]
mysql> select * from device;
+------+------+-----------------------+
| id | pn | descript |
+------+------+-----------------------+
| 1 | abcd | this is a good device |
| 2 | efgh | this is a good device |
+------+------+-----------------------+
2 rows in set (0.01 sec)
12. 選擇性的查詢內外的內容, * 是通配符, 表現一切的, 查詢單項的時刻, 輸出: select * from [table_name] where opiont=[value];
mysql> select * from device where id=2;
+------+------+-----------------------+
| id | pn | descript |
+------+------+-----------------------+
| 2 | efgh | this is a good device |
+------+------+-----------------------+
1 row in set (0.00 sec)
13. 選擇性查詢內外的內容, 輸出: select [option]...[option] from [table_name] where [option]=[value];
mysql> select id,descript from device where id=2;
+------+-----------------------+
| id | descript |
+------+-----------------------+
| 2 | this is a good device |
+------+-----------------------+
1 row in set (0.00 sec)
