Explain about the storage and physical database design?
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Explain what a database is?
What are the three basic rules which are to be followed for the relational model of the database?
What are data modelling techniques?
If a column is an image value type, how you can compare column values? How can you use this column in join clause?
Explain about the relational database?
What are the three types of database design?
How would you design a database for an online site, which would average a million hits a day?
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?
What are defaults? Is there a column to which a default can't be bound?
Explain the rollup operator?
what is Normalization?
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?