What is a key in dbms?

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I have 2 tables with 1 million rows each. I have updated 1 row in first and 1 million update on second table. Now I commit both the updates. Which one will commit fast and Why?

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How is foreign key commands related to primary key?

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What is the use of COMPRESS option in EXP command ?

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How to create a database from my program?

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What is database management system(dbms)?

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What's the difference between file and database? Can files qualify as a database?

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Explain the concept of acid properties in dbms?

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Explain by listing some major advantages of dbms.

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Is sql a database?

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What are the main differences between primary key and unique key?

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When do you get a .PLL extension ?

2 Answers   TVS,

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