Pivot and Unpivot Functions in BigQuery For Better Data Manipulation
Pivot is a very simple function in BigQuery that can be very useful when you need to rotate rows into columns. It uses an aggregate function on rows and converts…
SQL joins and Unions
Complete Explanation on SQL Joins and Unions With Examples in PostgreSQL
This article will be a comprehensive guide for SQL unions and joins. A lot of time databases are designed in a way that joins and unions are essential. For convenience,…
SQL queries and clauses
An Overview of the SQL Query Clauses and Functions
SQL is probably the most widely used tool in the world of Data Science, Analysis, or Engineering. In most job postings SQL is one of the common requirements. There are…