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What is transaction?
Transaction is a unit of program implementation that accesses and possibly updated several data items.
In Oracle what is system global area and how is it organized? The SGA is a collection of shared memory fields which along with the Oracle processes constitute an Oracle instan
explain various steps uses in evaluation and maintenance of MIS.
What is multiplicity in the associations? Give an example to explain multiplicity? Multiplicity in association indicate number of objects participate in any relationship. For
Define Fifth Normal form is concerned with Ans : Fifth Normal form is concerned with Join dependency.
What is a hash index? A hash index organizes the search keys, with their associated pointers, into a hash file structure.
Physical Database Design Issues The database design includes the process of logical design with the use of E-R diagram, normalisation, etc., followed by the physical design.
What is a primary key? Primary key is chosen by the database designer as the principal means of identifying an entity in the entity set.
State the terms Designing the database and Normalization Designing the database: Out of the ERD we have formed, it is very easy to verify the tables, the attributes which the
Example :; transfers transfer_amount from x's account to y's account ; Supposes x&y both accounts exist TRANSACTION (x, y, transfer_amount) Start transaction IF X AND Y
What is OMR? OMR (Optical Mark Recognition) is the translation of marks - or the absence of marks - but not the shape of the mark on forms that have small circles ("also called
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