SQL SELECT IN

The SELECT IN clause allows you to specify multiple values in a WHERE condition. It is a shorthand way of writing multiple OR conditions. Instead of writing separate OR conditions for each value, you can include all the values in a single IN clause.

Syntax

The basic syntax of the SELECT IN clause is as follows:

SELECT column_name(s) 
FROM table_name 
WHERE column_name IN (value1, value2, ...);

Example

Suppose we have a products table with the following columns: id, name, category and price. To select all products that belong to the categories 'electronics' or 'automotive', we can use the SELECT IN clause as follows:

SELECT * FROM products
WHERE category IN ('electronics', 'automotive');

This will return all the products that belong to either the 'electronics' or 'automotive' category.

Conclusion

Using the SELECT IN clause can simplify your SQL queries and make them easier to read and understand. It allows you to write fewer lines of code, while still getting the desired result.