Mysql Alter Rename Table
Mysql Alter Rename Table is used to modify and change the name of existing table.
Understand with Example
The Tutorial illustrate an example from 'Mysql Alter Rename Table'. To grasp this example , we create a table employees with required fieldname and datatype. The Table employee create a Empid column as primary key.
Query to create table:
CREATE TABLE employees (
->Empid int(10),
->Empname varchar(60),
->date date
->PRIMARY KEY(Empid)
->);
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Query to insert data into Table named employees:
The Query insert into adds the records or rows into table 'employees'.
mysql>insert into employees values(01,'Girish','2008-12-22'); Query OK, 1 row affected (0.02 sec) mysql>insert into employee1 values(02,'Komal','2008-12-23'); Query OK, 1 row affected (0.02 sec) |
Query to view data of Table named employees:
To view the detail of table 'employees' we run select keyword that return you the detail of table 'employees'.
mysql> select * from employees; |
Output:-
+-------+---------+------------+ | empid | empname | date | +-------+---------+------------+ | 1 | Girish | 2008-12-22 | | 2 | Komal | 2008-12-23 | +-------+---------+------------+ 2 rows in set (0.00 sec) |
Query to rename table name:
The given below query Alter statement is used to modify table 'employees' and rename statement change the existing table name to employees1.
mysql> alter table employees rename as employees1; Query OK, 0 rows affected (0.03 sec) |
Query to view table data:-
mysql> select * from employees; ERROR 1146 (42S02): Table 'girish.employees' doesn't exist |
Query to view table data:-
mysql> select * from employees1; +-------+---------+------------+ | empid | empname | date | +-------+---------+------------+ | 1 | Girish | 2008-12-22 | | 2 | Komal | 2008-12-23 | +-------+---------+------------+ 2 rows in set (0.00 sec) |