MySQL Tutorial/Insert Update Delete/Quotation Mark — различия между версиями
Admin (обсуждение | вклад) м (1 версия) |
Admin (обсуждение | вклад) м (1 версия) |
(нет различий)
|
Текущая версия на 09:50, 26 мая 2010
Insert double quotation mark by using the single quote
mysql>
mysql> CREATE TABLE Employee(
-> id int,
-> first_name VARCHAR(15),
-> last_name VARCHAR(15),
-> start_date DATE,
-> end_date DATE,
-> salary FLOAT(8,2),
-> city VARCHAR(10),
-> description VARCHAR(15)
-> );
Query OK, 0 rows affected (0.03 sec)
mysql>
mysql>
mysql> select * from Employee;
Empty set (0.00 sec)
mysql>
mysql> insert into employee (first_name)value("A"s");
Query OK, 1 row affected (0.01 sec)
mysql>
mysql> select * from Employee;
+------+------------+-----------+------------+----------+--------+------+-------------+
| id | first_name | last_name | start_date | end_date | salary | city | description |
+------+------------+-----------+------------+----------+--------+------+-------------+
| NULL | A"s | NULL | NULL | NULL | NULL | NULL | NULL |
+------+------------+-----------+------------+----------+--------+------+-------------+
1 row in set (0.00 sec)
mysql>
mysql>
mysql> drop table Employee;
Query OK, 0 rows affected (0.02 sec)
mysql>
Insert single quotation mark by using the double quote
mysql>
mysql> CREATE TABLE Employee(
-> id int,
-> first_name VARCHAR(15),
-> last_name VARCHAR(15),
-> start_date DATE,
-> end_date DATE,
-> salary FLOAT(8,2),
-> city VARCHAR(10),
-> description VARCHAR(15)
-> );
Query OK, 0 rows affected (0.03 sec)
mysql>
mysql>
mysql> select * from Employee;
Empty set (0.00 sec)
mysql>
mysql>
mysql> Insert into employee (first_name)value("Keith"s");
Query OK, 1 row affected (0.00 sec)
mysql>
mysql>
mysql> select * from Employee;
+------+------------+-----------+------------+----------+--------+------+-------------+
| id | first_name | last_name | start_date | end_date | salary | city | description |
+------+------------+-----------+------------+----------+--------+------+-------------+
| NULL | Keith"s | NULL | NULL | NULL | NULL | NULL | NULL |
+------+------------+-----------+------------+----------+--------+------+-------------+
1 row in set (0.00 sec)
mysql>
mysql>
mysql> drop table Employee;
Query OK, 0 rows affected (0.00 sec)
mysql>
mysql>