Using “OR” in SQL

All we need is an easy explanation of the problem, so here it is.

I am new to sql and today my manager asked me to retrieve some customres informations using their customer ID so i used the following query:

SELECT * 
FROM Customers
WHERE CustID = “11023” or CustID = “11045” or CustID = “11001” or CustID = “101989”;

It did work but i wonder if there is a better way to do it.

How to solve :

I know you bored from this bug, So we are here to help you! Take a deep breath and look at the explanation of your problem. We have many solutions to this problem, But we recommend you to use the first method because it is tested & true method that will 100% work for you.

Method 1

Better is a relative term as different people will have different opinions got different engines. That said, a simpler method to search for multiple records using the same column would be IN. Your query would look something like this:

SELECT * 
  FROM Customers
 WHERE CustID IN ("11023", "11045", "11001", "101989");

This makes it a little easier to write queries that can look up any number of customers by ID.

Note: Use and implement method 1 because this method fully tested our system.
Thank you 🙂

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

Leave a Reply