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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.
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how to prepare a data dictionary for online examination system for certified courses?
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Illustrate the State model for the ATM class let us take state model for the ATM class given below in Figure showing state model of the ATM class and the pseudo code derived fr
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