SQL or
Created By: chatGPT
The SQL
OR
operator is used in a WHERE
clause to combine multiple conditions. If any of the conditions evaluate to true, the row is included in the result set. This operator is useful for executing queries where you want to fetch records based on multiple criteria.SELECT * FROM Employees
WHERE Department = 'Sales'
OR Department = 'Marketing';
Using the
OR
operator allows you to make your queries more flexible. You can also combine AND
and OR
operators, but it’s important to use parentheses for clarity and to ensure correct order of operations. The database evaluates the conditions inside parentheses first.SELECT * FROM Employees
WHERE (Department = 'Sales'
OR Department = 'Marketing')
AND Salary > 50000;
You can also use the
OR
operator with LIKE
to perform pattern matching. This can be useful for searching for records that may not have an exact match but contain a certain text pattern.SELECT * FROM Products
WHERE ProductName LIKE '%phone%'
OR ProductName LIKE '%tablet%';
In summary, the
OR
operator is a powerful tool for querying databases, enabling you to retrieve records based on varying criteria. Always remember to test your queries to ensure you're getting the expected results.-- Example of a basic SELECT query
SELECT * FROM Orders
WHERE Status = 'Shipped'
OR Status = 'Pending';