-- we are going to add return reason in orders tables, this will show all colums from orders and all columns from returns -- this will show all data which is matching, and neglect the null value ...

Understand the effects of NULLs on inner and outer JOINs Your email has been sent SQL Server developers must understand two things: the difference between inner and outer JOINs and the effect of NULLs ...

The join operation is used to combine records of two or more tables. This essay explains the handling of join operations using SQL and SPL. By exploring solutions and basic principles of the two ...

I've been in an argument with one of our devs that took an update statement with an inner join and made it a left join (because inner was missing some records somehow in the left table - tableB in ...