MySQL query to convert a single digit number to two-digit

For this, you can use LPAD() and pad a value on the left.

Let us first create a table −

mysql> create table DemoTable767 (Value varchar(100)); Query OK, 0 rows affected (1.40 sec)

Insert some records in the table using insert command −

mysql> insert into DemoTable767 values('4'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable767 values('5'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable767 values('6'); Query OK, 1 row affected (0.39 sec) mysql> insert into DemoTable767 values('1'); Query OK, 1 row affected (0.10 sec)

Display all records from the table using select statement −

mysql> select *from DemoTable767;

This will produce the following output -

+-------+ | Value | +-------+ | 4 | | 5 | | 6 | | 1 | +-------+ 4 rows in set (0.00 sec)

Following is the query to convert a single digit number to two-digit by padding values −

mysql> select lpad(Value,2,'0') from DemoTable767;

This will produce the following output -

+-------------------+ | lpad(Value,2,'0') | +-------------------+ | 04 | | 05 | | 06 | | 01 | +-------------------+ 4 rows in set (0.00 sec)