Many people are confused by various JOIN operations supported by SQL. Learn to master the SQL command line with this crash course in JOIN syntax.

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 ...

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 ...

Hi there,<BR><BR>I've got a little problem. I need to join two tables both have the field "Product_ID" but the contents of the columns differ slightly. For example:<BR><BR>Table 1<BR>Field: Product_ID ...