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What is Implicit and Explicit CURSOR in DB2

 
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PostPosted: Fri Oct 05, 2007 9:30 am    Post subject: What is Implicit and Explicit CURSOR in DB2
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WHAT IS IMPLICIT AND EXPLICIT CURSOR IN DB2?

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vasanthkumarhb

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PostPosted: Fri Oct 05, 2007 9:54 am    Post subject:
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SQL declares a cursor implicitly for all SQL data manipulation statements, including quries that return only one row. However,queries that return more than one row you must declare an explicit cursor or use a cursor FOR loop.
Explicit cursor is a cursor in which the cursor name is explicitly assigned to a SELECT statement via the CURSOR...IS statement. An implicit cursor is used for all SQL statements Declare, Open, Fetch, Close. An explicit cursors are used to process multirow SELECT statements An implicit cursor is used to process INSERT, UPDATE, DELETE and single row SELECT. .INTO statements
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vasanthkumarhb

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PostPosted: Fri Oct 05, 2007 9:56 am    Post subject: Hi....
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Hi...


Pls find the diference between Exolicit and implicit cursor used in the DB2 section.......

Thanks and regard's
Vasanth....... icon_smile.gif
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