01. 00:00 Define a connection between a table and a subquery
This part shows how to define the connection
between existing tables and subquery in our main query. This is the JOIN.
02. 00:51 Understanding NULL behavior in JOINs
You will see that NULLs returned by the subquery will be eliminated by the JOIN because it cannot be match any values in the connecting table even if it also has a NULL row.
03. 01:17 Understanding INNER JOIN
Here you can see how INNER JOIN hides non matching rows from the result.
04. 01:52 Understanding LEFT JOIN
This is the solution to display all rows from the table right hand side and only matching rows from the right hand side table or subquery.
05. 02:33 Replacing NULL by using ISNULL function
This trick replaces NULLs to a default value you defined
06. 03:56 Add more subqueries to the main query
Here you can see that a query can contain any subqueries.
07. 04:42 Using the LIKE operator
Learn how to create a criteria finding only a part of a text.