If you work with databases in any way, a knowledge of SQL will be increasingly important, and The Complete 2021 SQL Master Class Bundle can show you the ins and outs of how it works.

Databases using a command system separate from SQL are often collectively referred to as NoSQL database systems, sometimes said to stand for "not only SQL," and it can logically take a longer ...

FROM table1, table2 WHERE table1.keyfield=table2.keyfield When you execute a statement like this, SQL creates a new table—the results recordset—based on the contents of table1 and table2.