Answer Posted / vivekananda
It is used to return a recordset from a stored procedure.
There are two types of REF-CURSORS.
One is STRONG REF-CUSROR.
Another is WEAK REF-CUURSOR.
For the STRONG REF-CUSROR, the returning columns with
datatype and length need to be known at compile time.
For the WEAK REF-CUURSOR, no need to be known at compile
time.
Eg:
type STRONG_REF_CURSOR is REF CURSOR return EMP%ROWTYPE;
type WEAK_REF_CURSOR is REF CURSOR;
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