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MySQL select and insert in two tables with a single query
Here is the query to create first table.
mysql> create table DemoTable1 -> ( -> StudentName varchar(20), -> StudentMarks int -> ); Query OK, 0 rows affected (0.67 sec)
To understand the above concept, let us create second table.
mysql> create table DemoTable2 -> ( -> Name varchar(20) -> ); Query OK, 0 rows affected (0.61 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable2 values('Chris');
Query OK, 1 row affected (0.12 sec)Display all records from the table using select statement −
mysql> select * from DemoTable2;
This will produce the following output −
+-------+ | Name | +-------+ | Chris | +-------+ 1 row in set (0.00 sec)
Here is the query to select and insert records with a single MySQL query −
mysql> insert into DemoTable1 -> select Name,89 from DemoTable2 -> union all -> select Name,98 from DemoTable2; Query OK, 2 rows affected (0.15 sec) Records: 2 Duplicates: 0 Warnings: 0
Now you can select records from the first −
mysql> select * from DemoTable1;
This will produce the following output −
+-------------+--------------+ | StudentName | StudentMarks | +-------------+--------------+ | Chris | 89 | | Chris | 98 | +-------------+--------------+ 2 rows in set (0.00 sec)
Updated on: 16-Dec-2019
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