What is a Database Schema and Why is It Important?

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Define entity, entity type, and entity set.

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How to debug stored procedures?

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What is trigger in dbms?

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what is difference between 1.append to media 2.overright the existing media when we take back up in sql server2000

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what is candidate key & primary key,different b/t the two?

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1.If we have a Salary coloumn in Staff entity with this description the salary must be monetary and >=$35450.00, how we can write it in into schemain SQL? 2. If we have Weight and Marks in Assessment entity and the Weight has the description of this it must be Non-zero percentage. And also the Marks attribute stores the maximum possible raw mark for assessment (e.g., 30), while Weight stores of the weight of this assessment for the paper as a whole (e.g., 10%). If Marks is not specified, then Weight is used for both. How we can convert this into schema in SQL????

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What are five main functions of a database administrator?

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Explain 3nf?

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What do you mean by e-r model & object-oriented model?

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What is difference between database and schema?

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