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Shubham Kaithwas 7 years, 1 month ago

A primary key is a column or a set of columns that uniquely identify a row in a table. ... Usually a foreign key is in a table that is different from the table whose primary key it is required to match. A table can have multiple foreign keys. The primary key cannot accept null values. A foreign key maybe a primary key but a primary key must not a foreign key ☺️
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Harjas Singh 3 years, 10 months ago

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Drift King 4 years ago

count(*)

Ojaswee Narayan 4 years, 1 month ago

lwenhckwebgcjhysfvhyjescj.husdbck/jdnc
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Saksham Sawarna 7 years, 1 month ago

Most probably February
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Sia ? 3 years, 6 months ago

Software is a set of instructions, data or programs used to operate computers and execute specific tasks. It is the opposite of hardware, which describes the physical aspects of a computer. Software is a generic term used to refer to applications, scripts and programs that run on a device. It can be thought of as the variable part of a computer, while hardware is the invariable part.
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Drishti Parikh 7 years, 1 month ago

It is a software
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Sulabh Jaiswal 7 years, 1 month ago

Every TCP/IP protocol has it's own unique address , called IP address.
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