Answer / v.ramesh

Implicit cursor is taken care by oracle server only,when we write any statement or query in the SQL editor,in that case oracle server create some memory for that and do operation on that query and finally erase the space as well

in case of Explicit cursor,manually like we need to create the Cursor and open.fetch the data and close the cursor.

we have one more alternative for this,if we will create cursor we need to user FOR LOOP mechanism in this case all exlicit cursor are not needed i.e OPEN<FETCH<CLOSE

Answer / basanti

IMPLICIT CURSOR: When we execute any sql statement, PL/SQL creates implicit cursor and manages automatically means implcit open & close takes place. It used when sql statement return only one row.
It has 4 attributes SQL%ROWCOUNT, SQL%FOUND, SQL%NOTFOUND, SQL%ISOPEN.

EXPLICIT CURSOR: It is created & managed by the programmer. It needs every time explicit open,fetch & close.
It is used when sql statement returns more than one row.
It has also attributes CUR_NAME%ROWCOUNT, CUR_NAME%FOUND, CUR_NAME%NOTFOUND, CUR_NAME%ISOPEN.

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