What is the difference between primary key, foreign key and candidate key?
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Data structure used to implements a menu:
Explain natural key?
What is the database url?
Is it possible to update AS400 database record while reading it with no lock
give a simple example of physical and logical data independence
What is OQL?
Is data lake a database?
where can i free download sqlserver2008..i can install sqlserver2008 without visual studio 2008 and work on it
What is lagging in DBMS ?
Datatypes are unlimited,true or false?
What advantages does DBMS have over traditional file systems?
What is the role of driver manager?
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