How can we insert values into a table with the help of MySQL self-computed output?
We can insert the values into a table with the help of the self-computed output returned by MySQL. In this case, we do not need to use dummy ‘dual’ table. The syntax can be as follows −
INSERT INTO table_name(column1,column2,column3,…) Select value1,value2,value3,…;
Example
In the example below, we have inserted the values in ‘testing’ table by using the MySQL self-computed output.
mysql> Create table testing(id int, item_name varchar(10));
Query OK, 0 rows affected (0.15 sec)
mysql> Insert into testing (id,item_name)Select 1,'Book';
Query OK, 1 row affected (0.11 sec)
Records: 1 Duplicates: 0 Warnings: 0
mysql> Insert into testing (id,item_name)Select 2,'Pen';
Query OK, 1 row affected (0.11 sec)
Records: 1 Duplicates: 0 Warnings: 0
mysql> select * from testing;
+------+-----------+
| id | item_name |
+------+-----------+
| 1 | Book |
| 2 | Pen |
+------+-----------+
2 rows in set (0.00 sec)
Published on 19-Feb-2018 14:45:42
