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List the table modification commands in SQL? A) Deletion B) Updates C) Insertion D) Update of a view
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
Describe the nested-loop join and block-nested loop join. Ans: The block nested- loop join algorithm is as described below: for every block B r of relation R do beg
How many types of users works on database? Users are differentiated through the way they expect to interact along with the system (i) Application programmers-interact with
What are the DBMS languages? Briefly explain? Data Definition language (DDL):A database schema is specified through a set of definitions expressed through a special language
a method named WonGame that checks each letter in the word is matched by its label
One-way Associations If an association is only traversed in single direction, then it is known as one-way association. It is implemented as a pointer or an attribute which con
Type of database technology
What is B-Tree? A B-tree eliminates the redundant storage of search-key values .It permits search key values to appear only once.
Ancestry database records information about family trees . Following information is recorded about each person: FIRSTNAME first name SURNAME surname MNAME maiden name (if
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