Answer / guest

Well cursors help us to do an operation on a set of data
that we retreive by commands such as Select columns from
table. For example : If we have duplicate records in a table
we can remove it by declaring a cursor which would check the
records during retreival one by one and remove rows which
have duplicate values.

Answer / mohsin mohammed abdul

Cursors are the private memory area in the SGA. they store
the result set of a query. And they are used to fetch
multiple rows from the tables in the pl/sql block

Answer / kuttikrishnan kodoth

if we ant to retrive data from a database table having
duplicate entries which violates primarykey rule
we can handle this case using cursor, it by declaring a
cursor which would check the
records during retreival one by one and remove rows which
have duplicate values. there are many types of cursors to
fetch data in diffrent order like fetch first,fetch
last ,fetct prior,fetch next,fetch abslute n,fetch relative
n

Answer / sathish kumar.t

Cursors is one of the data object which is used to access
and manipulate the datas in the result set.

Answer / srinivas

Cursors are logical areas created on physical areas, i.e.,
tables to find a particular nth record.

Answer / vijay dev saxena

Basically cursor in an active dataset depends on query.
it is good to handling set of data.

Answer / venkat.bolla

Cursors allow you to take a set of data and process record
by record

Answer / mian ghous

broadly speaking ,,cursor can perfomr operaions on database
much like functions except returning a value i think

Hi all, I need query help for below senorio, could you please help me. TableName = City CITYID ContinuationID CITYNAME 1 1 SAN 1 2 DIEGO 2 1 SAN 2 2 FRANCISCO 3 1 CHICAGO 4 1 NEW 4 2 YORK 4 3 CITY Could you please help me to write a generalized SQL that returns results as given below in the Query result CITYID NAME1 NAME2 NAME3 NAME4 NAME5 1 SAN DIEGO 2 SAN FRANCISCO 3 CHICAGO 4 NEW YORK CITY

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