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Define instance and schema?
Instance: Collection of data stored in the data base at a certain moment is
Schema: The overall design of the data base is known as the data base schema.
SET concept is used in which type of modelling? SET concept is used in Network Model.
To eliminate duplicate rows (distinct operator) Example: SELECT DISTINCT DEPTNO FROM EMP;
a project based on normalization with first, second and third normalization. There need to be a diagram also
What are the various symbols used to draw an E-R diagram (any 3)?
What is database utility? Database utility is the interface among the ABAP/4 Dictionary and the underlying the SAP system.
List the types of authorization. A) Read authorization B) Write authorization C) Update authorization D) Drop authorization
Define Query by Example QBE is a query language relies upon domain calculus and has two dimensional syntax. The queries are written in the horizontal and vertical dimensions of
Give the two reasons for allowing concurrency
Homework chapter 10 no 3
FitAll Ltd is a company that manufactures clothes. Its processes are manual and there are stand-alone Information Systems that aid to manage them. The Information Systems were purc
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