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Give the forms of triggers?
The triggering event can be insert or delete.
For updated the trigger can state columns.
The referencing old row as clause
The referencing new row as clause
The triggers can be initiated before the event or after the event.
What are the three types of data sources used with ODBC? An ODBC file data source is a file that can be shared between database users. An ODBC system data source is one that is
Question : (a) Data mining is one of the best ways to analyse data and using software method, hidden and unexpected patterns and relationships in sets of data can be extracte
composite attribute
What is conceptual model ? A conceptual model is a independent of both hardware and software.
What is a primary index? A primary index is an index whose search key also explains the sequential order of the file.
NEED FOR A DATABASE MANAGEMENT SYSTEM A Database is a structured, persistent collection of data of an organisation. The database management system (DBMS) manages the database o
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
as a customer service employee explain five measures you would recommend to make even a displeased students patronize the school canteen
explain in details about one to one binary relationship
If the deletion violates referential integrity constraint, then three alternatives are available: Default option: - refuse the deletion. It is the job of the DBMS to describ
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