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What are the two types of errors?
The two types of errors are:
a) Logical error
b) System error
What is called mirroring? The simplest approach to introducing redundancy is to duplicate each disk. This method is called mirroring or shadowing.
What is the full form of DDL? DDL is stand for Data Definition Language.
Explain the function of Object model Object model describes the classes of objects in system, including their attributes and operations which they support. The analysis object
various techniques of hashing?
recovey techniques based on deferred update and immediate update
Example- Search the salary of employees who are not 'ANALYST' but get a salary below than or equal to any people employed as 'ANALYST'. SELECT EMPNO, ENAME, JOB, SAL FROMEMP
Explain the Concept of Two-phase Locking It concerns the positions of locking and unlocking operations in each transaction. In this protocol every transaction issue lock and u
State as Location within a Program In this traditional approach, location of control inside a program totally defines the program state. Any finite state machine may be implem
Define Hash files organization a. Hashing includes computing the address of a data item by calculating a function on the search key value. b. A hash function h is a functi
What is an ERD?
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