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2NF Normal Form:
A relation schema process R is in 2NF if it is in 1NF and each non-prime attribute A in R is fully functionally related on primary key. Second normal form (2NF) is a normal process needed in database normalization. 2NF was originally described by E.F. Codd in 1971. A table that is in first normal form (1NF) must accept additional criteria if it is to accept for second normal form. A table is in 2NF if and only if, it is in 1NF and no non prime attribute is related on any proper subset of any candidate key of the table.
Atomicity : Either all functions are laid out or none are. Users could not have to think about the effect of incomplete operations. DBMS ensures this by undoing the functions
Differance between procedural and non procedural DML? Procedural and non procedural DML Procedural DML exactly what data is require and how to obtain those data. Non procedural
Key to represent relationship amongs tables is called ? A Key that represent the relationship between tables is called Foreign Key.
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Example: Consider the following relations: ROLLNO NAME ADDRESS COURSE_ID 100 Ka
Describe the various types of Online Analytical Processing (OLAP) tools and briefly discuss how the support common analytical operations.
Question: Consider the following database relations for a textbook ordering system used by a college bookshop: Book (b-copy#, bname, ISBN#, author, price, subject) Order (s#
Hi is anyone well versed in accounting information systems available now to help me work through an important assignment due tomorrow at noon?
Explain What is Relation? A database relation is a predefined row or column format for storing information in a relational database. Relations are equal to tables.
In E-R Diagram how relationship type is represented ? In E-R Diagram relationship type is represented as a Diamond.
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