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How to extract the area codes from a phone number with MySQL?
Let’s say we have a list of phone numbers and from that we want to get the area codes. These area codes are for example, the first 3 digits of the phone number. Use LEFT() function from MySQL for this.
Let us first create a table −
mysql> create table DemoTable -> ( -> AreaCodes varchar(100) -> ); Query OK, 0 rows affected (0.62 sec)
Insert some records in the table using insert command. Here, let’s say we have included the phone numbers −
mysql> insert into DemoTable values('90387568976') ;
Query OK, 1 row affected (0.20 sec)
mysql> insert into DemoTable values('90389097878' ;
Query OK, 1 row affected (0.23 sec)
mysql> insert into DemoTable values('56789008799');
Query OK, 1 row affected (0.10 sec)
mysql> insert into DemoTable values('45679008571');
Query OK, 1 row affected (0.23 sec)
mysql> insert into DemoTable values('45679008536);
Query OK, 1 row affected (0.12 sec)Display all records from the table using select statement −
mysql> select *from DemoTable;
This will produce the following output −
+------------+ | AreaCodes | +------------+ | 90387568976| | 90389097878| | 56789008799| | 45679008571| | 45679008536| +------------+ 5 rows in set (0.00 sec)
Following is the query to get the available area codes −
mysql> select distinct LEFT(AreaCodes,4) from DemoTable
This will produce the following output −
+-------------------+ | left(AreaCodes,4) | +-------------------+ | 9038 | | 5678 | | 4567 | +-------------------+ 3 rows in set (0.13 sec)
Updated on: 30-Jul-2019
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