Mysql Lpad
Mysql Lpad is used to add the padding to the left end of the string.The Mysql Padding function will be stooped if the combination of string and the added padding reach length character. Incase the length of a string is shorter than length the string will be shortening from the left to the length specified.
Understand with Example
The Tutorial illustrate an example from 'Mysql Lpad'.To grasp this example we create a table 'employee1'.The table 'employee1' is created with required fieldname and datatype respectively.
Query to Create Table named employee1:
mysql>CREATE TABLE employee1 ( -> Empid int(10), -> Empname varchar(60), -> date date -> ); |
Query to insert data into Table named employee1:
To insert the records or rows into table 'employee1' we use insert into query.
mysql>insert into employee1 values(01,'Girish','2008-12-20'); Query OK, 1 row affected (0.02 sec) mysql>insert into employee1 values(02,'Komal','2008-12-21'); Query OK, 1 row affected (0.02 sec) mysql>insert into employee1 values(03,'vineet','2008-12-21'); Query OK, 1 row affected (0.02 sec) mysql>insert into employee1 values(04,'Amit','2008-12-20'); Query OK, 1 row affected (0.02 sec) mysql>insert into employee1 values(02,'Komal','2008-12-23'); Query OK, 1 row affected (0.02 sec) mysql>insert into employee1 values(02,'Sandeep','2008-12-24'); Query OK, 1 row affected (0.02 sec) mysql>insert into employee1 values(02,'suman','2008-12-25'); Query OK, 1 row affected (0.02 sec) mysql>insert into employee1 values(01,'AAA',' 2008-12-03'); Query OK, 1 row affected (0.02 sec) |
Query to view data of Table named employee1:
mysql> select * from employee1; +-------+---------+------------+ | Empid | Name | DOB | +-------+---------+------------+ | 1 | Girish | 2008-12-20 | | 2 | Komal | 2008-12-21 | | 3 | vineet | 2008-12-21 | | 4 | Amit | 2008-12-20 | | 2 | Komal | 2008-12-23 | | 2 | Sandeep | 2008-12-24 | | 2 | suman | 2008-12-25 | | 1 | AAA | 2008-12-03 | +-------+---------+------------+ 8 rows in set (0.00 sec) |
Query to view lpad from Table named employee1 :
The Query below is used to add the padding to the left end of the string.In case the string size in column is less than length,then it add the padding * to the left of the respective string.
mysql> select LPAD(Name,07, '*')as LEFTPADDED from Employee1; +------------+ | LEFTPADDED | +------------+ | *Girish | | **Komal | | *vineet | | ***Amit | | **Komal | | Sandeep | | **suman | | ****AAA | +------------+ 8 rows in set (0.00 sec) |