What is the purpose of the primary key?


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More SQL PLSQL Interview Questions

How to return multiple records from procedure?

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Can a table contain multiple foreign key’s?

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What is the usage of the distinct keyword?

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What are sql*plus environment variables?

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what is sp_pkeys? : Transact sql

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how can we replace the particular column value of a resulted set of executed query? I mean write down a sql query to chane the particular column's value of a resulted set of executed query

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What do you mean by dbms? What are its different types?

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Mention what problem one might face while writing log information to a data-base table in pl/sql?

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Create a procedure to delete certain records from a table and display the total number of records deleted in this process. (Condition for deletion can be of ur choice, for instance delete all records where eid='')

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What is record type in pl sql?

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What are pl/sql exceptions? Tell me any three.

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What is sql rowcount?

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