Question

Q4- A table named school (containing data of students of the whole school) is created

where each record consists of several fields including:

Admission No, Roll No,Name.Which field out of these three should be set as the

primary key & why? What is the role of a primary key?​

Answer 1

Answer:

The parathyroid hormone (PTH), secreted by the parathyroid glands, is responsible for regulating blood calcium levels; it is released whenever blood calcium levels are low. PTH increases blood calcium levels by stimulating osteoclasts, which break down bone to release calcium into the blood stream.

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