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In which format database schema is written ? Data base schema is written in the DDL format.
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What is the use of unique function? UNIQUE function: If UNIQUE is specified then only unique values are used to computed the mean.
Describe about Use Case and external case in DFD The processes are transformed those into the Use Case and external case in DFD has same characteristics which of an actor in O
what is multivalued dependency
Saving Derived Attributes to Avoid Re-computation As discussed, "redundancy means duplication of exact data". But, if multiple copies of same data are present in the system,
Exclusive lock It is asked for by a transaction on a data item that it wants to update. No other transaction can put either a shared lock or an exclusive lock on a dat
Insulation between conceptual and physical structures It can be defined as: 1. The Database Administrator should be capable to vary the storage structures without affectin
How can you connect to the MySQL Server? In order to connect to the MySQL server it is necessary to give the username and password so this be able to done with The following
Scenario: You are a freelance database designer who has just been contacted by a small software development company named Altair Software. The president of the company has asked
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