Can we implement nested insert with select in MySQL?

Yes, we can implement nested insert with select in MySQL as shown in the below syntax −

insert into yourTableName2(yourColumnName1,yourColumnName2,.....N) select yourColumnName1,yourColumnName2,....N from yourTableName1 where yourCondition;

Let us first see an example and create a table −

mysql> create table DemoTable1 (    Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,    Name varchar(40) ); Query OK, 0 rows affected (0.88 sec)

Insert some records in the table using insert command −

mysql> insert into DemoTable1(Name) values('Chris'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable1(Name) values('David'); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable1(Name) values('Bob'); Query OK, 1 row affected (0.12 sec)

Display all records from the table using select statement −

mysql> select *from DemoTable1;

This will produce the following output −

+----+-------+ | Id | Name | +----+-------+ | 1 | Chris | | 2 | David | | 3 | Bob | +----+-------+ 3 rows in set (0.00 sec)

Following is the query to create second table −

mysql> create table DemoTable1 (    ClientId int,    ClientFirstName varchar(20) ); Query OK, 0 rows affected (0.60 sec)

Following is the query to implement nested insert with select −

mysql> insert into DemoTable2(ClientId,ClientFirstName) select Id,Name from DemoTable1 where Id !=2; Query OK, 2 rows affected (0.17 sec) Records : 2 Duplicates: 0 Warnings : 0

Display all records from the table using select statement −

mysql> select *from DemoTable2;

This will produce the following output −

+----------+-----------------+ | ClientId | ClientFirstName | +----------+-----------------+ |       1 | Chris           | |       3 | Bob             | +----------+-----------------+ 2 rows in set (0.00 sec)