C:Usersceshi>mysql -u root -p
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Server version: 5.6.24 MySQL Community Server (GPL)
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mysql> create database qa;
Query OK, 1 row affected (0.00 sec)
mysql> use qa;
Database changed
mysql> create table results(
-> id int not null auto_increment,
-> primary key(id));
Query OK, 0 rows affected (0.19 sec)
mysql> alter table results add column test_suit varchar(255);
Query OK, 0 rows affected (0.32 sec)
Records: 0 Duplicates: 0 Warnings: 0
mysql> alter table results add column test_name varchar(255) not null;
Query OK, 0 rows affected (0.28 sec)
Records: 0 Duplicates: 0 Warnings: 0
mysql> alter table results add column test_status varchar(10) not null;
Query OK, 0 rows affected (0.29 sec)
Records: 0 Duplicates: 0 Warnings: 0
mysql> describe results;
+-------------+--------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-------------+--------------+------+-----+---------+----------------+
| id | int(11) | NO | PRI | NULL | auto_increment |
| test_suit | varchar(255) | YES | | NULL | |
| test_name | varchar(255) | NO | | NULL | |
| test_status | varchar(10) | NO | | NULL | |
+-------------+--------------+------+-----+---------+----------------+
4 rows in set (0.02 sec)
mysql> insert into results(id,test_suit,test_name,test_status) values(2,"python web","article","200");
Query OK, 1 row affected (0.03 sec)