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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)). For this every record requires an unique key.
The primary idea is not to find for the correct position of a record along with comparisons but to compute the position inside the array. The function which returns the position is known the 'hash function' and the array is called a 'hash table'.
I want to fragment existing table using java code... help me..!!
Describe Participation Constraints? Participation Constraints - The participation constraint exacts whether the existence of an entity depends on its being related to another
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A student entity type has the following attributes,name..
Components of database manager The above functions are reached by the database manager. The major elements of a database manager are: Authorisation control: This mod
Implementation and SQL Applications
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