Answer / kwyto

Whatever you can do in TC you can do in DC and viceversa.
The main difference is that TC refers to the relation in
rows, but DC refers to the relation in columns.

Answer / aerwin

Tuple calculus is destructive as apposed to domain calculus. This means that in Tuple Calculus if you manipulate the data in a table all the information that is not needed is destroyed. In domain calculus this is no the case.

What is a super key?

0 Answers   3i Infotech,

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What is the differnce between Order by and Group by

1 Answers  

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Given a table of Player which contains Sno and player name, write a query which finds all possible Table Tennis doubles pairings.

0 Answers   Amazon,

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What is aws documentdb?

0 Answers  

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Explain entity type?

0 Answers  

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Explain normalization in one line?

0 Answers   C DAC, CDAC,

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aht is the difference b/w network & hierarchial & relational dbms????

0 Answers  

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What is ole db ado?

0 Answers  

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How many types of locks are present in a database?

0 Answers   Abacus,

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What is database bounce?

0 Answers  

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If we execute an query in MLOAD it's ran successfully, my questions is after successfully ran MLOAD. In error tables we can see anything there! is it possible than what are they?

3 Answers   CTS,

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On startup, the transaction log of a database has filled and recovery has suspended, what can I do?

0 Answers  

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