Home/ Questions/Q 6709883
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-26T07:56:05+00:00

I have a telephones database table with 4 columns: countrycode areacode phonenumber extension I’m

  • 0

I have a telephones database table with 4 columns:

  • countrycode
  • areacode
  • phonenumber
  • extension

I’m following the “Canonical” formatting, since I have some international numbers to consider.

And as fate would have it, some numbers entered have extensions.

I have a query that I use to auto-format everything, except the extension:

SELECT CONCAT('+',`countrycode`,'(',`areacode`,')', `phonenumber`) AS `fullnumber` ...

result: +1(123)4567890 or: +61(08)1234 1234
This works great, and it works perfectly with some dialer software I export to.

However, I now need to include the extension in this query. However, I need to auto-format it like so:

+1(123)4567890 x123

That’s rather easy, but since most numbers do not have an extension, I need to make a condition that will include the char (x). And this is my dilemma, since I’m still learning conditional statements in a query.

Anybody work with weird if/else statements inside a CONCAT?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    MySQL’s IF statement works like this:

    IF(condition, iftrue, iffalse): If the given condition is true, return the iftrue parameter. Otherwise, return the iffalse parameter.

    So, your query could look something like this: 

    SELECT CONCAT('+',`countrycode`,'(',`areacode`,')', `phonenumber`, IF(`extension` IS NULL, "", CONCAT(" x", `extension`))) AS `fullnumber ...

    The MySQL IF function is one of several control flow functions. For more information on those functions, see the MySQL docs.

    • 0