A Guide to SQL
A Guide to SQL
9th Edition
ISBN: 9781111527273
Author: Philip J. Pratt
Publisher: Course Technology Ptr
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Chapter 6, Problem 2SCG
Program Plan Intro

Primary key:

  • To identify each record in a table, at least there must be one data field, which should be unique.
    • That is corresponding data field of every record should be unique.
    • It is called primary key.
  • Primary key is used to identify the unique record from a collection of records.

Insert values:

Inserting values comes under Data Manipulation Language (DML).

  • The INSERT command in SQL is employed to add records to an existing table.

Syntax for inserting values into the table is as follows:

INSERT INTO TABLE_NAME VALUES('DATA 1', 'DATA 2');

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