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What is trigger?
Triggers are statements that are executed automatically by the system as the side effect of a modification to the database.
A database administrator''s responsibilities and data contents
What is the full form of DDL? DDL is stand for Data Definition Language.
Natural Join : It is the similar like Equi join except one of the duplicate columns is removed in the result table. The natural join is the most usually used form of join operation
With the help of a suitable diagram gives module wise explanation of system architecture of DBMS.on..
Data Control The data control mostly refers to commands that permit system and data privileges to be passed to several users. These commands are usually available to database admi
Question: This form represents one of a number used for each sailing of a range of boats. A passenger may go on many sailings and will have the same passenger number for each.
State the functional approach of object oriented methods Moving from a functional approach to an object oriented one needs a translation of functional model elements into objec
What is an index? An index is a structure that helps to place desired records of a relation quickly, without probing all records.
Many-to-many : Entities in A and B are related with any number of entities from each other. Example: Taught_by Relationship among course and faculty. One faculty member ca
Example : Create a sequence named SEQSS that starts at 105, has a step of 1 and can take maximum value as 2000. CREATE SEQUENCE SEQSS START WITH 105 INCREMENT BY 1 MAX VA
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