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Object-based Models: Use objects as key data representation components.
Examples:-
XYZ is a large chain of home entertainment rental over 100 stores distributed over all states in Australia. XYZ lends entertainment products such as movies, TV shows and games on v
What are the advantages and disadvantages of using a database system. Sol. Advantages of Database System (DBMS) : (1) Data Redundancy and Inconsistency: Since differen
Define null values. In some cases a certain entity may not have an applicable value for an attribute or if we do not know the value of an attribute for a certain entity. In the
Compare wait-die deadlock prevention scheme with wait-wound scheme Ans: Wait-Die Scheme a) Based upon a nonpreemptive technique. b) If Pi requests a resource present
Construct a clean ans concise ER diagram for the database indicating the cardinality mapping for Employee management syatem
What is Primary key? Primary Key - Primary key is one of the candidate keys which uniquely identifies each row in the relation.
Related fields in a database are grouped in which form? Related data fields in a database are grouped to form a data record. (A record is a collection of related fields)
What was the method in which records are physically stored in a specified order according to a key field in each record ? A method in which records are physically stored within
lock and types of lock
What are the uses of ODBC? Under what circumstances we use this technology? ODBC expose database capabilities within a standardized way to the application programmer by an ap
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