Explain what a database is?

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What are the three basic rules which are to be followed for the relational model of the database?

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What are data modelling techniques?

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If a column is an image value type, how you can compare column values? How can you use this column in join clause?

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Explain about the relational database?

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What are the three types of database design?

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How would you design a database for an online site, which would average a million hits a day?

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Pgm A calls Pgm B and pgm B uses cursor, when pgm B is called second time, the program is abending saying the cursor is opened? Why?

0 Answers   IBM,

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What are defaults? Is there a column to which a default can't be bound?

2 Answers  

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Explain the rollup operator?

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what is Normalization?

6 Answers   TCS,

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You have a table with three columns: amount1, amount2, and amount3 in a single row only one of these three columns will have a value and the other two will be null. Write a sql query to retrieve the values from these columns?

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