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What do you mean by DBMS? What is its need and what are its goals. Explain? OR Explain Data Base Management System? Sol. Database management system is a
Give an example of operations from the State Actions and Activities. For instance, in bank the activity verify account code and verify password
When a function module is activated syntax checking is performed automatically. YEs, a function module is activated syntax checking.
CREATE TABLE prodtrans ( pno number (4) ptype char (1) CHECK (ptype in ('I','R','S')), qty number (5) FOREIGN KEY pno REFERENCES product (pno) ON DELETE CASCADE);
Association as a cache This association must be updated when any new element is added to it, but testing for overlap using association is more efficient. Figure:
What is a primary index? A primary index is an index whose search key also explains the sequential order of the file.
Define single valued and multivalued attributes. Single valued attributes: attributes with a single value for a particular entity are known as single valued attributes. M
how design database from begining
What is the difference between internal tables and extract datasets? The lines of an internal table always have the similar structure. By using extract datasets, you can ha
random file orgnization
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