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A foreign key is a column (or a set of columns) in one table that refers to the primary key in another table. This relationship enforces referential integrity , ensuring that the value in the foreign key column matches an existing value in the referenced table's primary key column. This mechanism is crucial for relational databases as it defines how data in one table is related to data in another. For example, consider a database with two tables: Orders and Customers .
Select the most appropriate meaning of the given idiom.
Latin and Greek
Abjure
choose the option which represents a pair of either synonyms or antonyms.
Select the INCORRECTLY spelt word.
Select the option that can be used as a one-word substitute for the given group of words.
Words written on a tomb
Select the most appropriate antonym of the given word.
He is showing signs of senility .
In each question below, four words printed in bold type are given. These are numbered (A), (B), (C) and (D). One these words printed in bold might eith...
His actions were impulsive and not well thought out.
Select the INCORRECTLY spelt word.