SQL Queries Baeldung on SQL - Part 2

>> How To Count Distinct Over Multiple Columns

>> How to Interpret and Fix the MySQL Error 1093 – Can’t specify target table for update in FROM clause

>> What Does Keyword “AS” Do in SQL

>> How to SUM DISTINCT Rows in SQL?

>> Lateral Join vs. Subquery: What’s the Difference

>> Update Multiple Rows With Different Values With Single Query

>> How to Execute Multiple Queries Using psql Command From Bash

>> Counting Instances of Character in SQL Column

>> How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?

>> Generate SQL Insert Script From Excel Worksheet