The values in the table are basically a tree, where each node has a parent node (or NULL it it's at the root). The values are not inserted in any particular order, but the children point to valid ...

A common SQL habit is to use SELECT * on a query, because it’s tedious to list all the columns you need. Plus, sometimes those columns may change over time, so why not just do things the easy way? But ...

SQL Server is one of the best products to come out of Microsoft, but not every professional knows how to use it effectively. For example, some might find it difficult to create a stored procedure but ...