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SYS_REFCURSOR

  A cursor variable is a  variable  that references to a  cursor . Different from implicit and explicit cursors, a cursor variable is not tied to any specific  query . Meaning that a cursor variable can be opened for any query. The most important benefit of a cursor variable is that it enables passing the result of a query between PL/SQL programs. Without a cursor variable, you have to fetch all data from a cursor, store it in a variable e.g., a collection, and pass this variable as an argument. With a cursor variable, you simply pass the reference to that cursor. Starting from Oracle 9i, you can use  SYS_REFCURSOR, which is a predefined weak typed  REF CURSOR , to declare a weak  REF CURSOR  as follows: Eg: Declare C_Customer  SYS_REFCURSOR; Requirement:  Business will send us the Data in the .CSV  file and  we need to load in to the TEMP table(every time we have to create a new TEMP table and column structure and naming will be different). Using the TEMP table, we have to do a Join o