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The Maximum no of key fields that can be used in a header is?? 50
what do you understand by enhanced entity-relationship
Define outer union operation of the relational algebra. Compute the outer union for the relations R and S given below. Outer Join - If there are any values in one tabl
Problem: (a) Data mining is one of the best ways to analyse data and using software techniques, hidden and unexpected patterns and relationships in sets of data can be extrac
List and also explain the dissimilar stages of DDLC ?
what are the type of the database
3NF Normal Form A relation schema R is in 3NF if it is in 2NF and for each FD X A either of the following is true X is a Super-key of R. A is a prime attribute of R
My cut off date is very soon in a Database subject and i dont know how to solve anything in it
Mention the several levels in security measures. A) Database system B) Operating system C) Network D) Physical Human
Multiple column Queries: Syntax: SELECT COLUMN1, COL2,...... FROM TABLE WHERE (COLUMN1, COL2, ...) IN (SELECT COLUMN1, COL2,.... FROM TABLE WHERE );
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