Description:This Edureka video,SQL Basics for Beginners, will help you understand the basics of SQL and also SQL queries which are very popular and essential. In this SQL tutorial for beginners, you will learn SQL from scratch with examples. Learn SQL In 60 Minutes Author:Web Dev Simplified D...
Description:This Edureka tutorial video on Microsoft SQL Server tutorial explains all the fundamentals of MS SQL Server with examples. Topics covered in this video include key features, installation, architecture, command categories, data types, DDL commands, DML commands, operators, nested queries, j...
So how do you make queries fast?\r\n\r\n\r\n Avoid as many joins as possible. When needed, stick to very simple, indexed joins (typically left join from table A to B)\r\n Every query should refer do a particular item id, eg. ... where user_id = 1 2 3 4 or similar.\r\...