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What is transaction?
Transaction is a unit of program implementation that accesses and possibly updated several data items.
Write a query that display ename annual salary and comm from emp table
What is Information System?
explain cascading rollback
external view of DBMS in healthcare department?
In an E-R diagram an entity set is represent by? In an E-R digram entity set is represted by rectangle.
using the invoice table shown below,write the relational schema,draw a dependencies,inclunding all partial and transitive dependencies.assume that the table does not contain repeat
Briefly explain the state diagram by taking one example. State Diagram - An object can be given a sequence of input instructions. The state of the object can vary depending u
What is the function of SQL Server Agent Windows service? - It's a Windows service that handles tasks scheduled within SQL Server environment. These tasks are also known as job
An important first step to the statistical analysis of data is to "get to know your data". The following tasks should contribute to this. (a) To the right of the dataset cons
If R1 and R2 are two relations or functions, then the result of R3 = R1 × R2 is the combination of tuples that are in R1 and R2. The product is associative and commutative. Degr
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