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Types of Data fragmentation
In case of entity integrity, the primary key may be declared? In a case of entity integrity primary key may be not Null.
a brief definition
Normal 0 false false false EN-IN X-NONE X-NONE
Describe Hashing in DBMS? Hashing: Hashing is a technique to store data within an array so which storing, searching, inserting and deleting data is fast (in theory it's O(1))
Explain What is Relation? A database relation is a predefined row or column format for storing information in a relational database. Relations are equal to tables.
Discuss along with examples about several types of attributes present in the ER model? Types of Attributes are: • SIMPLE attributes are attributes which are drawn from the ato
What is difference between primary index and secondary index? Primary Index a) It is an ordered file whose records are of fixed length along with two fields. b) Only base
Key to represent relationship amongs tables is called ? A Key that represent the relationship between tables is called Foreign Key.
What are the causes of bucket overflow in a hash file organization? What can be done to reduce the occurrence of bucket overflow? When a record is inserted, the bucket to that
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