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What is object identity?
An object retains its identity even if some or all the values of variables or explanations of methods change overtime.
Normal 0 false false false EN-US X-NONE X-NONE
what is the need of a log in dbms
In this practical assignment, we will run through a complete database application development cycle, starting with the schema design, from an initial data import to database applic
Redo Logs: Any database must have minimum two redo logs. These are the rules for the database; the redo logs record all modifies to the system objects or user objects. If any type
What are the features of embedded SQL? Explain. Embedded SQL - SQL could be implemented within two ways. It can be used interactively or embedded in a host language or throu
What is Disadvantages Of DBMS ? 1. Cost of Software and Hardware and Migration - A important disadvantage of the DBMS system is cost. 2. Reduced Response and Throughpu
What is meant by functional dependencies? Consider a relation schema R and α C R and β C R. The functional dependency α ->β holds on relational schema R if in any legal relati
Write short notes on relational model The relational model uses a collection of tables to show both data and the relationships between those data. The relational model is an ex
What is transaction? Transaction is a unit of program implementation that accesses and possibly updated several data items.
What is a database? At any given time, they're storing a tremendous amount of information - inventory, in the case of Amazon, messages and interrelationships in the case of Tw
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