CH06_VID01_Views (create , modify , remove , types)

Transcript

What' are "Views"? It's a database object. What does it mean? It's considered as a logical table based on another table, or a group of other tables, or a group of other views. What's meant by "Logical Table"? It means it doesn't have its own data. It's just a window leads to data in somewhere else. It's like having a shortcut for a folder. Such sho... Read More