For this, you can use DISTINCT along with the INSERT INTO SELECT statement. Let us first create a table −
mysql> create table DemoTable1 ( Value int ); Query OK, 0 rows affected (1.03 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable1 values(50); Query OK, 1 row affected (0.18 sec) mysql> insert into DemoTable1 values(10); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable1 values(10); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable1 values(60); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable1 values(50); Query OK, 1 row affected (0.09 sec) mysql> insert into DemoTable1 values(70); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable1 values(50); Query OK, 1 row affected (0.14 sec)
Display all records from the table using select statement −
mysql> select *from DemoTable1;
This will produce the following output −
+-------+ | Value | +-------+ | 50 | | 10 | | 10 | | 60 | | 50 | | 70 | | 50 | +-------+ 7 rows in set (0.00 sec)
Following is the query to create the second table.
mysql> create table DemoTable2 ( Marks int ); Query OK, 0 rows affected (1.20 sec)
Following is the query to insert multiple rows from another table. The inserted records should be distinct −
mysql> insert into DemoTable2(Marks) select distinct Value from DemoTable1; Query OK, 4 rows affected (0.18 sec) Records: 4 Duplicates: 0 Warnings: 0
Display all records from the table using select statement −
mysql> select *from DemoTable2;
This will produce the following output −
+-------+ | Marks | +-------+ | 50 | | 10 | | 60 | | 70 | +-------+ 4 rows in set (0.00 sec)