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DATABASE, Database Management System
WHAT IS SQL
Posted Date: 11/14/2012 12:26:15 AM | Location : Sri Lanka
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How many types of views are there, How many types of Views are there? ...
How many types of Views are there? There are Four types of views:- Database View Help View Projection View Maintenance View
Enhanced entity relationship, what do you understand by enhanced entity-rel...
what do you understand by enhanced entity-relationship
Determine the method of choosing algorithms, Determine the method of Choosi...
Determine the method of Choosing Algorithms In general, most of operations are easy and have a satisfactory algorithm since description of what is to be done also shows how i
Explain entity integrity and referential integrity rules, Explain entity in...
Explain entity integrity and referential integrity rules within relational model. Show how these are realized in SQL? Entity Integrity Rule - No primary key value could be nu
Short note on mid square method of hashing, Short Note on mid Square Method...
Short Note on mid Square Method of hashing? Mid square method of hashing: In the method midsquare hashing, the key is squared and the address selected from the center of the s
Properties of a transaction , Properties of a Transaction A tra...
Properties of a Transaction A transaction has four main properties. These are: Atomicity Consistency Isolation or Independence Durability or Permanen
How does query tree represent relational algebra expression, How does a que...
How does a query tree represent a relational algebra expression? Discuss any three rules for query optimisation, giving example as to when should each rule be applied. Ans
Explain the term high level dml, Explain the term High level DML? High...
Explain the term High level DML? High level DML A high-level or non-procedural DML permit the user to specify what data is needed without specifying how it is to be acquired.
Define the boyce-codd normal form, Define the Boyce-Codd Normal Form with i...
Define the Boyce-Codd Normal Form with instance and also Compare BCNF and 3NF. Ans: BCNF: For each functional dependency X->Y in a set F of functional dependencies over relati
How to design a formal and exact model, How to design a formal and exact mo...
How to design a formal and exact model How to design a formal and exact model of real-world problems by applying findings of analysis phase of OMT. The object design phase find
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