The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph. I've taken out my X-and stay poised and vigilant Y-ear buds so I can Z-listen for announcements
In the following question, out of the four alternatives, choose the word which best expresses the meaning of the given word and click the button corresponding to it.
Foreign keys are the columns of a table that points to the primary key of another table. They act as a cross-reference between tables.
In detail : A Foreign key is a field (or collection of fields) in one table that uniquely identifies a row of another table or the same table. In simpler words, the foreign key is defined in a second table, but it refers to the primary key or a unique key in the first table.
National security refers to security of a nation state, including its citizens, economy&institutions, is regarded as a duty of govt. It is celebrated every year on 4th March. The 1st National Security Day observed in the year 1972.
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