mysql 基本操作２

１，select 查找数据

创建stu列表，插入数据结果如下：

mysql> select * from stu; ＃读取列表stu中所有数据
+------+-----------------------+------------+
| name | addr                  | birthday   |
+------+-----------------------+------------+
| 丁   | 海南省海口市          | 1995-08-12 |
| 丙   | 江苏省南京市          | 1997-12-22 |
| 乙   | 北京市东城区          | 1997-09-22 |
| 己   | 河北省石家庄市        | 1996-09-02 |
| 戊   | 四川省成都市          | 1996-09-02 |
| 甲   | 浙江省杭州市          | 1998-02-22 |
+------+-----------------------+------------+
6 rows in set (0.00 sec)

1.1,查找列表中的所有字段

select * from table_name;#例如上面

1.2 查找列表某一特定字段的所有值

select field1,field2,.. from table_name;

mysql> select name from stu;
+------+
| name |
+------+
| 丁   |
| 丙   |
| 乙   |
| 己   |
| 戊   |
| 甲   |
+------+
6 rows in set (0.00 sec)

1.3,查找列表某一条件下的特定字段的值 where条件语句

select field1,field2... from table_name where field;

mysql> select name,birthday from stu where addr ='海南省海口市';
+------+------------+
| name | birthday   |
+------+------------+
| 丁   | 1995-08-12 |
+------+------------+
1 row in set (0.00 sec)

1.4, 模糊选择 like字句

select field1... from table_name where filed like '%';

mysql> select name,birthday from stu where addr  like '北京%';
+------+------------+
| name | birthday   |
+------+------------+
| 乙   | 1997-09-22 |
+------+------------+
1 row in set (0.00 sec)