SQL JOINS interview questions and answers || Learn SQL Joins easy way скачать в хорошем качестве

SQL JOINS interview questions and answers || Learn SQL Joins easy way

In this Video we will learn about the SQL JOINS , and how we get result sets. we have different type of SQL JOINS: Inner Join/ Join Left Join Right Join Full Join/Outer Join/Full Outer Join Cross Join Given that we have two tables with 2 different datasets with duplicate and null values, we try to fetch the number of record based on different joins. create table A ( IDA int) Create table B (IDB int) insert into A values (1),(1),(1),(2),(2),(NULL); insert into B values (1),(1),(2),(NULL),(NULL); select * from A; select * from B; select * from A join B on A.IDA= B.IDB select * from A Left join B on A.IDA= B.IDB select * from A Right join B on A.IDA= B.IDB select * from A full outer join B on A.IDA= B.IDB select * from A cross join B #sqlinterviewquestionsandanswers #sqlinterview #sqlbeast #sqlserver #sqljoins