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:
Answer:
Storage Spaces Direct feature implements software-defined storage and is intended to make storage more versatile by making it easier to add storage, access storage, and use new storage capabilities
Explanation:
Storage Spaces Direct feature appeared in Windows Server 2016 and it is a <em>distributed data storage technology. </em>
Storage Spaces Direct enables local drives of several servers into a fault-tolerant, scalable storage secured from problems of both separate disks and entire servers. Using this feature, one can create virtual volumes on local drives and use them as common clusters to store virtual machine files.
Answer:
Yes it will create a string variable
That is a true statement. Hope this was helpful!
The mechanism transmits rotary motion to reciprocating is the crank and slider. <span>A crank and slider mechanism changes straight-line motion into rotation motion. Typically found in piston engines or piston pumps, this design consists of a rod that connects to a rotating driving beam and a sliding body.</span>
