It is important to calculate profit for every business. Here is how to calculate margin in MySQL.
It is important to get top selling products for every ecommerce business. Here is the MySQL query to get top selling products.
It is easy to get multiple counts with multiple conditions in MySQL. Here is how to get multiple counts with different criteria in MySQL.
Case statements help you use multiple if conditions in SQL queries. Here is how to write case statement in MySQL.
Sometimes you may need to check if value exists in array. Here is how to check if PostgreSQL array contains value.
Coalesce is a useful MySQL function that returns first non-null value. Here is how to use Coalesce in MySQL.
Sometimes you may need to search JSON array of objects, extract JSON data or retrieve JSON data in MySQL. In this article, we will look at how to query JSON column in MySQL.
Sometimes you may need to prevent duplicate insert while adding rows. Here is how to avoid inserting duplicate records in MySQL.
Sometimes you may need to update array in PostgreSQL with new data. In this article, we will look at how to change array in PostgreSQL, modify array in PostgreSQL, and merge arrays in PostgreSQL.
Sometimes you may need to select multiple count in one query or get multiple counts for different criteria. Here is how to get multiple counts with single query in MySQL.