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Describe Database state in details?
Database state: The actual data within the database at a particular moment in time is known as a database state.
what is query processing ,query optimization and performance turring?
FDs in Relationships: Enrols Relationship: None as it is many to many Teaches Relationship : Course code → Instructor Instructor → Course code The next question is:
it can be possible to create any table without primary key
Explain natural join? Natural Join - Similar as equi-join except in which the join attributes (having similar names) are not involved in the resulting relation. Only one sets
List the set operations of SQL? 1) Union 2) Intersect operation 3) The except operation
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
sir, could anybody help me in getting complete information about the mentioned topic
Conflicting Operations in Schedule: The three simple ways of interleaved instruction implement of transactions T1 and T2. Please note that in the following tables the first col
What is a Database? To know what database is, we have to start from data, which is the basic building block of any DBMS. Data: Facts, figures, statistics etc. having no pa
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