segunda-feira, julho 25, 2016

How to use mySQL (create database, use database, create table, see column table) and commands


Commands list:

http://g2pc1.bu.edu/~qzpeng/manual/MySQL%20Commands.htm

Sample:

Enter password: *********
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 12
Server version: 5.1.73-community MySQL Community Server (GPL)
Copyright (c) 2000, 2013, 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> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
+--------------------+
2 rows in set (0.00 sec)
mysql> create database sysformatdb;
Query OK, 1 row affected (0.02 sec)
mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| sysformatdb        |
+--------------------+
3 rows in set (0.00 sec)
mysql> use sysformatdb
Database changed
mysql> CREATE TABLE employees (firstname VARCHAR(20), middleinitial VARCHAR(3),
lastname VARCHAR(35),suffix VARCHAR(3), officeid VARCHAR(10),userid VARCHAR(15),
username VARCHAR(8),email VARCHAR(35),phone VARCHAR(25), groups VARCHAR(15),date
stamp DATE,timestamp time,pgpemail VARCHAR(255));
Query OK, 0 rows affected (0.08 sec)
mysql> show tables;
+-----------------------+
| Tables_in_sysformatdb |
+-----------------------+
| employees             |
+-----------------------+
1 row in set (0.00 sec)
mysql> show columns from employees;
+---------------+--------------+------+-----+---------+-------+
| Field         | Type         | Null | Key | Default | Extra |
+---------------+--------------+------+-----+---------+-------+
| firstname     | varchar(20)  | YES  |     | NULL    |       |
| middleinitial | varchar(3)   | YES  |     | NULL    |       |
| lastname      | varchar(35)  | YES  |     | NULL    |       |
| suffix        | varchar(3)   | YES  |     | NULL    |       |
| officeid      | varchar(10)  | YES  |     | NULL    |       |
| userid        | varchar(15)  | YES  |     | NULL    |       |
| username      | varchar(8)   | YES  |     | NULL    |       |
| email         | varchar(35)  | YES  |     | NULL    |       |
| phone         | varchar(25)  | YES  |     | NULL    |       |
| groups        | varchar(15)  | YES  |     | NULL    |       |
| datestamp     | date         | YES  |     | NULL    |       |
| timestamp     | time         | YES  |     | NULL    |       |
| pgpemail      | varchar(255) | YES  |     | NULL    |       |
+---------------+--------------+------+-----+---------+-------+
13 rows in set (0.00 sec)
mysql>

Sem comentários: