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Benefits of heap files 1. This is a easy file Organisation method. 2. Insertion is somehow capable. 3. Good for bulk-loading data into a table. 4. Best if file
A database administrator''s responsibilities and data contents
What is B-Tree? A B-tree eliminates the redundant storage of search-key values .It permits search key values to appear only once.
To delete a particular column in a relation which command is used ? To delete a particular column in a relation ALTER command is used.
the of super market system done in database
Key to represent relationship amongs tables is called ? A Key that represent the relationship between tables is called Foreign Key.
write a short note on participation role? Participation role: roles are indicating in E-R diagram by labelling the lines that connect diamonds to rectangles.
A constraint named less_than_20 was defined on the field date_of_birth of table student. Delete this constraint. ALTER TABLE student DROP CONSTRAINT less_than_20;
DISADVANTAGES OF RDBMS
Analyzing Association Traversal Association Traversal shall be understood properly for the association design explanation. Analyzing association traversal means analyzing tra
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