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What is called as recursive partitioning?
The system repeats the splitting of the input unless each partition of the build input fits in the memory. Such partitioning is known as recursive partitioning.
What are the DBMS languages? Briefly explain? Data Definition language (DDL):A database schema is specified through a set of definitions expressed through a special language
Which database level is closest to the users? External database level is closest to the users.
assume we have the following apllicationthat model sccer team the games they play and the players inv each teamin the design we want to capture
A View may be defined of as a virtual table, that is, a table that does not really exist in its own right but is instead inferred from one or more underlying base data table. T
What is an Operand? The data on which the operation is to be performed is known as an Operand
Which data manipulation command combines the records from one or more tables ? JOIN data manipulation command combines the records from one or more tables.
What is difference between TRUNCATE and DELETE? - Truncate can't be rolled back whereas Delete can be. - Truncate keeps the lock on table whereas Delete keeps the lock on ea
What is horizontal fragmentation? Horizontal fragmentation divides the relation by assuming every tuple of r to one or more fragments
WHY SHOULD NULL IN A RELATION BE AVOID AS possible?
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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