How to fetch Oracle reference cursor into table variable?

oracle, ref-cursor, stored-procedures

Solution

The name of variable in code above misleaded you. Your variable `outtable` is in `table` type. It isn't possible to fetch record data into table of records, but you can fetch it into record itself.

DECLARE 
    REFCUR SYS_REFCURSOR;   
    TYPE RECORDTYPE IS RECORD (COL1 NUMBER, COL2  VARCHAR(100));
    outtable RECORDTYPE; 
BEGIN 
    SP_OUT_RefCur_PARAM(REFCUR);
    LOOP
        FETCH REFCUR INTO outtable;
        EXIT WHEN REFCUR%NOTFOUND;
        dbms_output.put_line(outtable.col1);
    END LOOP;
    CLOSE REFCUR;
END;

Update: If you want to fetch all data for better performance your application you need to use BULK COLLECT statement:

DECLARE 
    REFCUR SYS_REFCURSOR;   
    TYPE RECORDTYPE IS
        RECORD (COL1 NUMBER, COL2  VARCHAR(100));
    TYPE TABLETYPE IS
        TABLE OF REFTABLETYPE
        INDEX BY PLS_INTEGER;
    outtable TABLETYPE; 
BEGIN 
    SP_OUT_RefCur_PARAM(REFCUR);
    LOOP
        FETCH REFCUR INTO BULK COLLECT outtable;
        EXIT WHEN outtable.COUNT = 0;

        FOR indx IN 1 .. outtable.COUNT 
        LOOP
            dbms_output.put_line(outtable(indx).col1);;
        END LOOP;
    END LOOP;
    CLOSE REFCUR;
END;

Note: memory consumption with the BULK statement is much more than without.

The most important thing to remember when you learn about and start to take advantage of features such as BULK COLLECT is that there is no free lunch. There is almost always a trade-off to be made somewhere. The tradeoff with BULK COLLECT, like so many other performance-enhancing features, is "run faster but consume more memory." (Oracle Magazine)

But if you are just fetching and processing the rows - a row at a time there is no needs in `BULK` statement, just use the cursor `FOR LOOP`. (Ask Tom)

Problem

I am trying to load data from reference cursor into a table variable (or array), the reference cursor works if the table variable is based on existingtable %Rowtype but my reference cursor gets loaded by joining multiple tables so let me try to demonstrate an example what i am trying to do and some one can help me ``` --created table create table SAM_TEMP( col1 number null, col2 varchar(100) null ); --created procedure which outputs results from that table CREATE OR REPLACE PROCEDURE SP_OUT_RefCur_PARAM( C_RESULT OUT SYS_REFCURSOR ) IS BEGIN OPEN C_RESULT FOR SELECT COL1,COL2 FROM SAM_TEMP; END SP_OUT_RefCur_PARAM; --seeing the output works like this DECLARE REFCUR SYS_REFCURSOR; outtable SAM_TEMP%rowtype ; BEGIN SP_OUT_RefCur_PARAM(REFCUR); LOOP FETCH REFCUR INTO outtable; EXIT WHEN REFCUR%NOTFOUND; dbms_output.put_line(outtable.col1); END LOOP; CLOSE REFCUR; END; --but when i try to run below script it is giving error,i think i am missing something DECLARE REFCUR SYS_REFCURSOR; TYPE REFTABLETYPE IS RECORD (COL1 NUMBER, COL2 VARCHAR(100)); TYPE TABLETYPE IS TABLE OF REFTABLETYPE; outtable TABLETYPE; BEGIN SP_OUT_RefCur_PARAM(REFCUR); LOOP FETCH REFCUR INTO outtable; EXIT WHEN REFCUR%NOTFOUND; dbms_output.put_line(outtable.col1); END LOOP; CLOSE REFCUR; END; ``` Error report: ``` ORA-06550 line 9, column 21: PLS-00597 expression 'OUTTABLE' in the INTO list is of wrong type ORA-06550 line 9, column 3: PL/SQL SQL Statement ignored ORA-06550 line 11, column 32: PLS-00302 component 'COL1' must be declared ``` Not sure what i am missing, Thanks in advance for your help

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