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What is a candidate key? Minimal super keys are known as candidate keys.
composite attribute
How to design a formal and exact model How to design a formal and exact model of real-world problems by applying findings of analysis phase of OMT. The object design phase find
Lost Updates : Suppose the two transactions T3 and T4 run simultaneously and they happen to be interleaved in the following way (suppose the initial value of X as 10000):
prototype of a distributed information system for a national car part retail outlet chain.
Name the various privileges in SQL? A) Delete B) Select C) Insert D) Update
ALTER TABLE Command : This command is used for variation of existing structure of the table in the given situation: When a new column is to be added to the table structure.
First Normal Form and second normal form First Normal Form (1NF) A relation is said to be in 1NF if it having no non-atomic values and each row can give a unique combinat
Explain What is Relation? A database relation is a predefined row or column format for storing information in a relational database. Relations are equal to tables.
wrie a report on whether a BSc n information systems develops the skills required by employers in Database administration
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