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.

In this SQL Server tip, Arthur Fuller explains the effects of NULLs, and the different results obtained by inner and outer JOINs.

Hi there,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:Table 1Field: Product_ID Datum: 423 ...