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what is data link layer
What is the difference among a database schema and a database state? The collection of information stored in database at particular moment in time is known as database state a
sql is relationally complete-justify
diagrams and meaning
What is serialization? Where it is used and why? Serialization is a basic term used for mechanisms which enable objects and object structures to be converted into portable for
Question: (a) Prepare an ERD for the scenario given below. (b) Convert the ER diagram produced in (a) above into its physical design. You have to choose an appropriate Pri
State the definition of association An association is a structural relationship which specifies that objects of one thing are connected with objects of another. In UML, asso
Which language has presently become the defacto standard for interfacing application programs along with relational database system? The language which has recently become the
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 inheritance? Inheritance is an object orientation concept that allows reusability of code / design. Basic sense of inheritance is that if one class is predefined than a
Define the categories of SQL Statements? 1) Statements that don't return a result set. This statement class includes INSERT, DELETE, and UPDATE. 2)Statements that return
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