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What are the various symbols used to draw an E-R diagram? Explain with the help of an example how weak entity sets are represented in an E-R diagram. Various symbols used to d
what are information system hirarchy?
Define Aggregate functions and what aggregate functions supported by the MySQL To calculate a summary value from a set of individual values and uses one of the functions known
Concurrency issues Data integrity: Threads accessing same object need to be synchronized, such as: banking account. Deadlock: One or more threads in system are perman
Difference between Operating System and Database Security Security within the operating system can be executed at various levels ranging from passwords for access to system, t
We need help in Booking System for Golf Business Development of a web based booking system which permits clients to book golf lessons with the following features- a) 4 user p
Rules Of Data Normalisation Let us now summarise Normalisation with the help of various clean rules. The following are the necessary rules for the Normalisation process: 1.
To delete a particular column in a relation which command is used ? To delete a particular column in a relation ALTER command is used.
what is query processing?
What is a relationship called when it is maintained between two entities? A relationship is called Binary relationship when it is maintained between two entities.
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