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write a short note on participation role?
Participation role: roles are indicating in E-R diagram by labelling the lines that connect diamonds to rectangles.
When is UPDATE_STATISTICS command used? - When processing of large data is done, this command is used. - Whenever large number of modification, deletions or copy takes place
Database Errors: An error is said to have occurred if the implementation of a command to manipulate the database cannot be successfully finished either due to inconsistent data or
In this assignment, you will create a program that works with multiple tables. In this assignment, you will work with the factory and sales tables. 1. Create a new project nam
Having clause This clause is used for producing conditions on grouped information. Example: Find maximum salary and department number of those departments where maxim
List the drawbacks of relational database system A) Repetition of data B) Inability to s certain information.
What are called index-sequential files? The files that are ordered sequentially with a primary index on the search key are known as index-sequential files
Implementing software control To implement software control designer must redesign strategy of state event model which is present in dynamic model. There are three basic ap
Meaningful use refers to the use of certified EHR technology to "enhance quality, efficiency, and reduce health disparities
Define query optimization. Query optimization refers to the process of search the lowest -cost method of evaluating a given query.
The natural join is equal to which product? The natural join is equal to Combination of projection and Cartesian product
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