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What is Management System?
A management system is a set of rules and process which help us to create organize and manipulate the database. It also helps us to add, change delete data items in the database. The management system can be either manual or computerized.
The management system is significant because without the existence of some kind of rules and regulations it is not possible to preserve the database. We have to select the particular attributes which should be contained in a particular table; the common attributes to make relationship between two tables; if a new record has to be inserted or deleted then which tables should have to be handled etc. These issues must be resolved by having some type of rules to follow in order to handle the integrity of the database.
What are multiple inheritances? Multiple inheritances allow a class to inherit variables and methods from many super classes.
What is the use of a slotted-page structure and what is the information are there in the header? The slotted-page structure is used for organizing records within a one block.
how to write tables and drow E-R diagrams for hosiptal management system and how to normalize and cardinalities?
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Give an example of operations from the State Actions and Activities. For instance, in bank the activity verify account code and verify password
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);
how many hourse have been spent on a certain project
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Load sample data into the database tables design and test queries to return the following information • All rows and columns for employees • All rows and columns for customers •
What is the difference between serial and sequential files? How searching is applied on both? Ans: A serial file is one where the records have been stored in the order where
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