Brother even learn Python class notes----MySQL data manipulation

Add data

Format: INSERT into table name [(field list)] VALUES (List of values ...); --Standard Add (Specify all fields, given all values)

Insert into Stu (ID,NAME,AGE,SEX,CLASSID) VALUES (1, ' Zhangsan ', +, ' m ', ' lamp138 ');
Query OK, 1 row affected (0.13 sec)

--Specify partial fields to add values
Insert into Stu (NAME,CLASSID) value (' Lisi ', ' lamp138 ');
Query OK, 1 row affected (0.11 sec)

--Do not specify a field to add values
Insert into Stu value (null, ' Wangwu ', +, ' w ', ' lamp138 ');
Query OK, 1 row affected (0.22 sec)

--Batch add value
INSERT INTO Stu values
(NULL, ' Zhaoliu ', ', ' w ', ' lamp94 '),
(NULL, ' uu01 ', ', ', ' m ', ' lamp94 '),
(NULL, ' uu02 ', ', ' w ', ' lamp92 '),
(NULL, ' qq02 ', ', ' m ', ' lamp92 '),
(NULL, ' uu03 ', +, ' m ', ' lamp138 '),
(NULL, ' qq03 ', Max, ' W ', ' lamp94 '),
(null, ' AA ', +, ' m ', ' lamp138 ');
Query OK, 7 rows affected (0.27 sec)
Records:7 duplicates:0 warnings:0
modifying data

Format: Update table name set field 1= value 1, field 2= value 2, field n= value n ... where condition

--change age of ID 11 to 35,sex to M value
Update Stu set age=35,sex= ' m ' where id=11;
Query OK, 1 row affected (0.16 sec)
Rows matched:1 changed:1 warnings:0

--Change the data value for ID values 12 and 14 to M,classid to lamp92
Update Stu set sex= ' m ', classid= ' lamp92 ' where ID in (12,14);
Query OK, 2 rows affected (0.09 sec)
Rows matched:2 Changed:2 warnings:0
Delete data

Format: Delete from table name [where condition]

--delete data in the Stu table with an ID value of 100
Delete from Stu where id=100;
Query OK, 0 rows Affected (0.00 sec)

--delete data from the Stu table with an ID value of 20 to 30
Delete from Stu where id>=20 and id<=30;
Query OK, 0 rows Affected (0.00 sec)

--delete data from the STU table with ID values from 20 to 30 (rank above)
Delete from Stu where ID between and 30;
Query OK, 0 rows Affected (0.00 sec)

--delete data with an ID value greater than 200 in the Stu table
Delete from Stu where id>200;
Query OK, 0 rows Affected (0.00 sec)

Brother even learn Python class notes----MySQL data manipulation