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Explain cursors in SQL?
Cursors in SQL - An object used to store the output of a query for row-through-row processing through the application programs. Cursors are constructs which enable the user to name a private memory field to hold an exact statement for access at a later time.
Cursors are used to procedure multi-row result sets one row at a time. In addition, cursors remain track of which row is currently being accessed, that permit for interactive processing of the active set.
Describe the benefits of OOD techniques OOD techniques are very useful for development of large and complex systems. It has been noted that large projects that are developed u
What is Index? An index is a physical structure having pointers to the data. Indices are created in an existing table to locate rows more quickly and efficiently. It is possibl
Explain the Project-Join normal form A relation R is in PJNF along with respect to a set of functional dependencies D if for all join dependencies of the outline *(R 1 , R 2 ,
to develop elrctronic database from manual forms
usecase diagram,activity diagraM,SEQUENCE DIAGRAM
Why did SAP introduce the extended star schema? Explain why it is reported to be better than the traditional schema model?
Question 1: a) What is the difference between a non-impact and impact printer? b) Which type of printer is generally used in a supermarket to print your receipt? Describe
What is relational model feature? A relational model feature is much more data independence than some other database models.
What is the role of a database administrator?
what is RDBMS? how it works? good example.
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