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Define- relational algebra.
The relational algebra is a procedural query language. It having of a set of operations that take one or two relation as input and make a new relation as output.
it can be possible to create any table without primary key
difference between MIS and DSS
Fragmentation: It is definite as partitioning of a relation into various fragments.Every fragment can be stored at a dissimilar site.
external view of DBMS in healthcare department?
Hardware failure : Hardware failures are the failures when some disk or hardware chip fails. This may result in loss of data. One such trouble can be that a disk gets damaged and
need to get answer for questions 3&4 on this page in part 1
What is inheritance? Define it in detail? Inheritance Inheritance can be at the levels of types, or at the level of tables we first consider inheritance of types, then i
which component of DBMS can be embedded in a program? The data manipulation language (DML) is a component which is embedded in a program.
Normalize the given relation to 3NF, justifying each step
what is object-identity
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