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Define page.
The database is partitioned into some number of fixed-length blocks, which are referred to as pages.
what factors might influence a company to outsource its IT infrascture.
What is meant by data-transfer rate? The data-transfer rate is the rate at which data can be retrieved from or kept to the disk.
How the time stamps are implemented Use the value of the system clock as the time stamp. That is a transaction's time stamp is equivalent to the value of the clock when the tra
Explain the difference between the three storage types - volatile, non volatile and stable. Ans: Volatile storage: if storage media loses data while power goes off,
What are aggregate functions? And list the aggregate functions supported by SQL? Aggregate functions are functions that take a collection of values as input and return a one va
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.
Example: //REVOKE ALL ON EMP FROM MCA12; (All permissions will be cancelled) You can also cancel only some of the permissions. Drop: A user-
What is a primary index? A primary index is an index whose search key also explains the sequential order of the file.
Differentiate between logical database design and physical database design. Show how this separation leads to data independence? Basis Logical Databas
what is Storage-Device Hierarchy question
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