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Explain the term- Data Flows Data Flows: A data flow connects output of an object or process to input of another process or object. It represents an in-between data value wit
Which data manipulation command combines the records from one or more tables ? JOIN data manipulation command combines the records from one or more tables.
In case of entity integrity, the primary key may be declared? In a case of entity integrity primary key may be not Null.
The Locking Protocol: To manage concurrency related problems we use locking. A lock is mainly a variable that is associated with a data item in the database. A lock can be located
What is Normalization? Database normalization is a data design and organization method applied to data structures based on rules that help building relational databases. In rel
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
Explain the term- Periodic recomputation Periodic recomputation: Base values are often updated in bunches. Sometimes, it is possible to just recompute all derived attributes p
Describe the benefits of OOD techniques OOD techniques are very useful for development of large and complex systems. It has been noted that large projects that are developed u
what are the purposes of dbms in details
State the Object Design for Processing The object design phase comes after analysis and system design phase. The object design phase includes implementation details like as i
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