The default search term operator is AND
You can use brackets, AND OR and NOT to improve your search. For example: C# AND NOT ( VB or SQL )
A query of a single * will return everything, filtered by any filters.
Search by Author: author:"author name"
Filter by tag: tag:C# or tag:(C++ or Java)
Wildcard search use: "?" or "*" eg. gr?d or gr*
Martin will show you the purpose of having databases in application programming and how to properly set them up.
This video from our "SQL Database for Beginners" series will give you a lot of good information to start your SQL education. Understanding the fundamentals of SQL will give you a good foundation for the upcoming lessons.