Get the new record key ID from MySQL insert query?

We can get new record key with the help of LAST_INSERT_ID() function from MySQL. First, we will create a table and for inserting record, we will use LAST_INSERT_ID().

Let us create a table with the help of create command.

The query is as follows −

 mysql> create table LastInsertRecordIdDemo -> ( -> id int auto_increment, -> value varchar(100), -> primary key(id) -> ); Query OK, 0 rows affected (0.52 sec) 

After creating a table, we will insert records and set it using LAST_INSERT_ID() function.

 mysql> insert into LastInsertRecordIdDemo values(1,'Low'); Query OK, 1 row affected (0.10 sec) mysql> insert into LastInsertRecordIdDemo values(LAST_INSERT_ID(),'High'); Query OK, 1 row affected (0.11 sec) 

Now we can display all the records with the help of select statement.

The query is as follows −

 mysql> select *from LastInsertRecordIdDemo; 

The following is the output.

 +----+-------+ | id | value | +----+-------+ | 1 | Low | | 2 | High | +----+-------+ 2 rows in set (0.00 sec) 

Now to insert records, we need to add 1 in the function LAST_INSERT_ID (). The query is as follows −

 mysql> insert into LastInsertRecordIdDemo values(LAST_INSERT_ID()+1,'Medium'); Query OK, 1 row affected (0.08 sec) 

Now we can display all records with the help of select statement.

 mysql> select *From LastInsertRecordIdDemo; 

The following is the output.

 +----+--------+ | id | value | +----+--------+ | 1 | Low | | 2 | High | | 3 | Medium | +----+--------+ 3 rows in set (0.00 sec)