Select Statement to retrieve the same first names with similar last name (but different case) using MySQL?

Let us first create a table −

mysql> create table DemoTable623 (FirstName varchar(100),LastName varchar(100),Age int); Query OK, 0 rows affected (0.76 sec)

Insert some records in the table using insert command −

mysql> insert into DemoTable623 values('John','Smith',23); Query OK, 1 row affected (0.66 sec) mysql> insert into DemoTable623 values('Adam','smith',23); Query OK, 1 row affected (0.26 sec) mysql> insert into DemoTable623 values('Chris','Brown',24); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable623 values('Robert','brown',21); Query OK, 1 row affected (0.22 sec)

Display all records from the table using select statement −

mysql> select *from DemoTable623;

This will produce the following output −

+-----------+----------+------+ | FirstName | LastName | Age | +-----------+----------+------+ | John      | Smith | 23 | | Adam      | smith | 23 | | Chris     | Brown | 24 | | Robert    | brown | 21 | +-----------+----------+------+ 4 rows in set (0.00 sec)

Here is the query to select statement using MySQL −

mysql> select FirstName from DemoTable623 where lower(LastName) ='smith';

This will produce the following output −

+-----------+ | FirstName | +-----------+ | John    | | Adam    | +-----------+ 2 rows in set (0.00 sec)