Answer:
A primary key is a special relational database table column (or combination of columns) designated to uniquely identify each table record. A primary key is used as a unique identifier to quickly parse data within the table. A table cannot have more than one primary key.
Primary Key.
Candidate Key.
Alternate Key.
Super Key.
Composite Key.
Foreign Key.
Unique Key.
In the relational model of databases, a primary key is a specific choice of a minimal set of attributes that uniquely specify a tuple in a relation. Informally, a primary key is "which attributes identify a record," and in simple cases constitute a single attribute: a unique ID.
Explanation:
When you open MS Word, selecting the insert option and clicking
SmartArt, will pop up SmartArt dialog box. Double-clicking on one of the
graphic options in the middle panel will automatically select and place the
graphic art you want. It is an easy way of inserting a SmartArt of your choice without selecting
the art itself and clicking OK.
2 is tha answer to Why should cloud computing not be a set of silos? Provide real or made up examples of why incompatible solutions will fail in IT.?
He should cancel the date and move to another country semis how he screwed up his work, hope this helped