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Give the general form of SQL query?
Select A1, A2............., An
From R1, R2..............., Rm
Where P
In the architecture of a database system which external level used? In the architecture of a database system view external level used.
What is a value? A data value is used for identity. This form of identity is used in relational systems.eg: The primary key value of a tuple recognize the tuple.
What is a transaction ? The Transaction is a unit of data processing. For instance, many of the transactions at a bank may be withdrawal or deposit of money; transfer of money f
to develop elrctronic database from manual forms
What are the requirements to ensure the objectives of file management principle is realized?
What is Information System?
Define Join and Outer Join and differentiate between them. Ans: Join - It generates all the combinations of tuples from two relations which satisfy a join condition. Oute
Project Description: Hi I'm seeking someone to make my dBase application work. I know it's not a 'modern' language but it's what I know. I have written an order program and I ne
Explain three main attributes of data.
What is meant by software and hardware RAID systems? RAID can be executed with no change at the hardware level, using only software modification. Such RAID implementations are
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