MariaDB INSERT,UPDATE,DELETE

MariaDB INSERT,UPDATE,DELETE

INSERT

插入一整行

(jlive)[crashcourse]>DESC customers;

+--------------+-----------+------+-----+---------+----------------+

| Field        | Type      | Null | Key | Default | Extra          |

+--------------+-----------+------+-----+---------+----------------+

| cust_id      | int(11)   | NO   | PRI | NULL    | auto_increment |

| cust_name    | char(50)  | NO   |     | NULL    |                |

| cust_address | char(50)  | YES  |     | NULL    |                |

| cust_city    | char(50)  | YES  |     | NULL    |                |

| cust_state   | char(5)   | YES  |     | NULL    |                |

| cust_zip     | char(10)  | YES  |     | NULL    |                |

| cust_country | char(50)  | YES  |     | NULL    |                |

| cust_contact | char(50)  | YES  |     | NULL    |                |

| cust_email   | char(255) | YES  |     | NULL    |                |

+--------------+-----------+------+-----+---------+----------------+

 

9 rows in set (0.00 sec)

(jlive)[crashcourse]>INSERT INTO customers VALUES(NULL, 'Pep E. LaPew', '100 Main Street', 'Los Angeles', 'CA', '90046', 'USA', NULL, NULL);

(jlive)[crashcourse]>SELECT cust_name,cust_address,cust_city,cust_state,cust_zip FROM customers;

+----------------+---------------------+-------------+------------+----------+

| cust_name      | cust_address        | cust_city   | cust_state | cust_zip |

+----------------+---------------------+-------------+------------+----------+

| Coyote Inc.    | 200 Maple Lane      | Detroit     | MI         | 44444    |

| Mouse House    | 333 Fromage Lane    | Columbus    | OH         | 43333    |

| Wascals        | 1 Sunny Place       | Muncie      | IN         | 42222    |

| Yosemite Place | 829 Riverside Drive | Phoenix     | AZ         | 88888    |

| E Fudd         | 4545 53rd Street    | Chicago     | IL         | 54545    |

| Pep E. LaPew   | 100 Main Street     | Los Angeles | CA         | 90046    |

+----------------+---------------------+-------------+------------+----------+

 

6 rows in set (0.15 sec)

插入一行中的某几个字段

(jlive)[crashcourse]>INSERT INTO customers(cust_name, cust_address, cust_city, cust_state, cust_zip, cust_country, cust_contact, cust_email) VALUES('Pep E. LaPew', '100 Main Street', 'Los Angeles', 'CA', '90046', 'USA', NULL, NULL);

 

Query OK, 1 row affected (0.00 sec)

一条插入语句插入多条数据

INSERT INTO customers(cust_name,cust_address, cust_city, cust_state, cust_zip, cust_country)

VALUES

('Pep E. LaPew','100 Main Street', 'Los Angeles', 'CA','90046','USA' ),

('M. Martian', '42 Galaxy Way', 'New York', 'NY','11213','USA'); 

插入查询到的数据

INSERT INTO customers(cust_id,cust_contact, cust_email, cust_name, cust_address, cust_city, cust_state, cust_zip, cust_country)

SELECT cust_id, cust_contact,cust_email, cust_name, cust_address, cust_city, cust_state, cust_zip, cust_country FROM custnew; 

UPDATE

(jlive)[crashcourse]>UPDATE customers SET cust_name = 'The Fudds', cust_email = 'elmer@fuddd.com' WHERE cust_id = 10005;

Query OK, 1 row affected (0.00 sec)

Rows matched: 1  Changed: 1  Warnings: 0

(jlive)[crashcourse]>SELECT cust_id, cust_name, cust_email FROM customers WHERE cust_id = 10005;

+---------+-----------+-----------------+

| cust_id | cust_name | cust_email      |

+---------+-----------+-----------------+

|   10005 | The Fudds | elmer@fuddd.com |

+---------+-----------+-----------------+

 

1 row in set (0.00 sec)

(jlive)[crashcourse]>UPDATE customers SET cust_email = NULL WHERE cust_id = 10005;

Query OK, 0 rows affected (0.00 sec)

Rows matched: 1  Changed: 0  Warnings: 0

(jlive)[crashcourse]>SELECT cust_id, cust_name, cust_email FROM customers WHERE cust_id = 10005;

+---------+-----------+------------+

| cust_id | cust_name | cust_email |

+---------+-----------+------------+

|   10005 | The Fudds | NULL       |

+---------+-----------+------------+

 

1 row in set (0.00 sec)

DELETE

(jlive)[crashcourse]>DELETE FROM customers WHERE cust_id = 10006;

 

Query OK, 1 row affected (0.00 sec)

转载于:https://www.cnblogs.com/lixuebin/p/10814176.html