IGNOU BCSL 34 2026 2027 - appointment_id (Primary Key, INT, Auto Increment)

Question

appointment_id (Primary Key, INT, Auto Increment)

07 Aug 2026

Answer :

Word Count : 471

In a DBMS Lab, the attribute appointment_id is used as a unique identifier for storing and managing appointment records in a database table. It is defined as a Primary Key with the data type INT and configured as Auto Increment. This ensures that every appointment entry receives a distinct numerical value automatically when a new record is inserted into the table. A Primary Key is an important concept in a relational database because it uniquely identifies each row of a table. No two records can have the same primary key value, and it cannot contain NULL values. In an appointment management system, the appointment_id helps the database differentiate between different appointments even when

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