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I need web security expert , website management
Project Description:
i want professional for the below .
website management
server management
database management
web security expert
Skills required are Database Administration, Website Management, Web Security
Define database management system? Database management system (DBMS) is a set of interrelated data and a combination of programs to access those data.
how to construct labelled precedence graph for view serialiability.please explain insteps with one solved examples
Define Partial Key and Primary Key A partial key, also known as discriminator, is the set of attributes which can uniquely identify weak entities that are related to similar o
What is the meaning of Recovery? In deferred update methods, if a transaction fails before arriving its commit point, it will not have altered the database in any way, so UNDO
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 mo
What is the use of group by clause? Group by clause is used to apply aggregate functions to a set of tuples. The attributes given in the group by clause are used to
Explain controlled redundancy? Controlled redundancy : The replication of data within the data warehouse for the purposes of improved data access or understand ability.
A database administrator''s responsibilities and data contents
Hashed File Organisation Hashing is the most common form of purely random access to a database or file. It is also used to access columns that do not have an index as an optimi
Explain what is Aggregation? Aggregation: Aggregation is an significant concept in database design whereas composite objects could be modelled during the design of database a
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