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usecase diagram,activity diagraM,SEQUENCE DIAGRAM
To delete a particular column in a relation which command is used ? To delete a particular column in a relation ALTER command is used.
Which operation is used if we are interested in only certain columns of a table? PROJECTION operation is used if we are interested in only certain columns of a table.
Define data conversion? Helpful to load data into temporary staging tables. Then can write SQL code to do much of data processing. SQL code is simpler and faster to write than
What is data integrity? Ans: It is the data consisted of in database that is accurate and consistent. (Data integrity means that the data should be valid as per to the give
What is an entity relationship model? The entity relationship model is a collection of basic objects known as entities and relationship between those objects. An
Which data manipulation command combines the records from one or more tables ? JOIN data manipulation command combines the records from one or more tables.
What is called query processing? Query processing refers to the range of activities included in extracting data from a database.
1. Determine the set of minimal functional dependencies for the following data. The local bakery, Happy Cakes, needs your help designing a database that will support a kiosk in
Different stages of DDLC ?
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