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What is called block-level striping? Block level striping stripes blocks across many disks. It treats the array of disks as a large disk, and provides blocks logical numbers
What is a view in SQL? When can views be updated? A view is a virtual table which consists of columns from one or more tables. Through it is same to a table; it is stored in
What is vertical fragmentation? Vertical fragmentation divides the relation by decomposing the scheme R of relation r.
I have a homework assignment due today by midnight. I need help understanding databasse normalization and determining the type of form violation & how to fix the violation.
The External or View Level The external or view level is the highest level of abstraction of database. It gives a window on the conceptual view, which permits the user to see
Which database level is closest to the users? External database level is closest to the users.
Write a program within embedded SQL to associative the total trip expenses of the salesman named ‘John' for the relations. EXEC SQL BEGIN DECLARE SECTION; long total_expenses;
what are the limitations of dbms?
what is attribute is attribute inheritance in dbms?
Which data manipulation command combines the records from one or more tables ? JOIN data manipulation command combines the records from one or more tables.
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