Best way to return complex datasets out of a procedure

Dear Oracle experts,
I'm presently writing on a procedure which should return a kind of datastructure which contains some rows of a table (SIGFacts) which are selected in dependence of
a result set in a cursor.
I would like to return this result set in a manner which enables external programs to
fetch this data.
What I tried in the procedure below is to create a record and make it accessible from external programs outside Oracle (see below).
But I'm not sure whether this is a suitable method.
I'm wondering about several questions :
Is it suitable to give back a record or should I always give back a Cursor ?
If I should give back a cursor, how could I fetch all the data within the record into a cursor ?
And a stupid beginners question :
How can I use the record from a external program ?
(My procedure belongs to a package. The record is defined in the Package head ((see below))
procedure PROCFINDINITIALSWITCHSTATE (SwitchID INTEGER, StartTime TIMESTAMP, ausgabe2 out nocopy SIGFACTTABLE) is
cursor cursor0 (SwitchID Integer) is
select var_ref from DynamicLines where BELONGSTOSWITCHID = SwitchID;
cursor cursor1 (StartTime timestamp, VarRef Integer) RETURN SigFacts%ROWTYPE is
Select * from SIGFacts where (NewValue=1) AND DT<= StartTime AND
Var_ref = VarRef AND rownum = 1 order by DT DESC;
tempRecord SIGFACTTYPE;
tempTable SIGFACTTABLE;
BEGIN
tempTable := SIGFACTTABLE(); --Loeschen der tempTable (Initialisierung mit NULL)
for datensatz in cursor0(SwitchID) loop
for datensatz2 in cursor1 (StartTime, datensatz.Var_Ref) loop
tempTable.extend(1); -- Hinzufuegen eines (zunaechst leeren) Datensatzes
tempTable(tempTable.count).AUTOID := datensatz2.AUTOID;
tempTable(tempTable.count).VAR_REF := datensatz2.VAR_REF;
tempTable(tempTable.count).DT := datensatz2.DT;
tempTable(tempTable.count).MACHINES_REF := datensatz2.MACHINES_REF;
tempTable(tempTable.count).VARIABLESID := datensatz2.VARIABLESID;
tempTable(tempTable.count).OLDVALUE := datensatz2.OLDVALUE;
tempTable(tempTable.count).NEWVALUE := datensatz2.NEWVALUE;
tempTable(tempTable.count).PRODUCTS_REF := datensatz2.PRODUCTS_REF;
tempTable(tempTable.count).USERS_REF := datensatz2.USERS_REF;
tempTable(tempTable.count).LINE_ID := datensatz2.LINE_ID;
end loop;
end loop;
--return tempTable
END PROCFINDINITIALSWITCHSTATE;
I declared the Record in the Head section of the same package.
type SIGFACTTYPE is record(
AUTOID SIGFACTS.AUTOID%type, Var_Ref SIGFACTS.Var_ref%type, DT SIGFACTS.DT%type
, machines_ref SIGFACTS.machines_ref%type, variablesid SIGFACTS.variablesid%type
, oldvalue SIGFACTS.oldvalue%type,
newvalue SIGFACTS.newvalue%type, products_ref SIGFACTS.products_ref%type
, users_ref SIGFACTS.users_ref%type, line_id SIGFACTS.line_id%type
type SIGFACTTABLE is table of SIGFACTTYPE;

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Please see my code
BEGIN
     BEGIN                                    -- To check whether the user(Record) exists in the table
          SELECT a.code, a.code_desc
          INTO L_code, L_code_desc
          FROM CODE_DETAIL a, USER_ROLE_PRIVS b
          WHERE a.code_desc = b.granted_role
          AND a.code_type like '%CATR%'
          AND b.username = I_U_ID;
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IF L_CODE <> '1' AND L_CODE <> '2' AND L_CODE <> '3' THEN     -- To check whether there is any other role associated other than 1, 2 or 3
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END IF;This is a piece of code which is a part of procedure .. Now whenever I have O_ERR_MSG initialized to Y or N .. it should come out of the procedure... What's happenning now is, variable is getting initialized and executing the rest of the code, which shouldnt happen ..
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Regards

Ok... posting the entire code
CREATE OR REPLACE PROCEDURE AFE_CHECK_SUBMIT (I_u_id in varchar2, I_ord_num in number, O_rol out VARCHAR2, O_app_check OUT Varchar2, O_v_app_check out number, O_v_otb_check out number, O_AMT OUT NUMBER, O_ERR_MSG OUT VARCHAR2, O_error_message IN OUT varchar2 ) IS
L_role                  varchar2(30);
L_approval_limit        number;         L_otb_limit             number;
L_approval_level        varchar2(5);
L_tolerance_limit       varchar2(40);            L_program VARCHAR2(60) := 'AFE_CHECK_SUBMIT';
L_code                  VARCHAR2(10);
L_code_desc             VARCHAR2(30);
L_app_check             NUMBER;
L_otb_check             NUMBER;
L_amt                   NUMBER;
L_otb_amt1              NUMBER;
L_order_no           NUMBER;
L_status           VARCHAR2(1);
CURSOR C_PO_AMT IS SELECT i.dept, i.class, h.order_type, to_CHAR(h.otb_eow_date, 'MONYYYY') po_month, sum(o.qty_ordered * o.unit_cost) po_amt
FROM ITEM_MASTER i, ORDLOC o, ORDHEAD h
WHERE i.item = o.item
AND o.order_no = h.order_no
AND o.order_no = I_ord_num
GROUP BY i.dept, i.class, h.order_type, to_CHAR(h.otb_eow_date, 'MONYYYY');
CURSOR C_OTB_CALCULATE(order_type VARCHAR2, order_eow_date date, dep number, clas number ) IS
SELECT sum(decode(order_type, 'ARB', a_budget_amt-a_approved_amt,
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FROM OTB
WHERE to_char(EOW_DATE,'MONYYYY') = to_char(order_eow_date,'MONYYYY')
AND DEPT = dep
AND CLASS = clas
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      c3 C_PO_AMT%rowtype;
CURSOR C_ROLE_CHECK IS
SELECT a.code, a.code_desc                                      -- checking the role of the user who has logged in
FROM CODE_DETAIL a, USER_ROLE_PRIVS b
WHERE a.code_desc = b.granted_role
AND a.code_type like '%CATR%'
AND b.username = I_U_ID;
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BEGIN
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          FETCH C_ROLE_CHECK INTO L_ROLE_CHECK;
          EXIT WHEN C_ROLE_CHECK%NOTFOUND;
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     END LOOP;
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             dbms_output.put_line('No Record in table');
          O_ERR_MSG := 'N';
END;
dbms_output.put_line('Role is :' || L_code);
IF L_CODE <> '1' OR L_CODE <> '2' OR L_CODE <> '3' THEN
     O_ERR_MSG := 'Y';
     dbms_output.put_line('Unidentified user');
END IF;
IF L_code = '1' THEN                                       -- If user id is planner
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          dbms_output.put_line('Entered 1st loop');
                OPEN C_OTB_CALCULATE(c3.order_type, TO_DATE(c3.po_month,'MONYYYY'), c3.dept, c3.class);
                LOOP
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                     FETCH C_OTB_CALCULATE into c2;
                        EXIT WHEN C_OTB_CALCULATE%notfound;
                        L_amt := c3.PO_AMT;
               dbms_output.put_line('PO AMT IS:' || L_amt);
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                             L_app_check := 1;
                                O_app_check := 'T';
                                O_v_app_check := 1;
                    O_amt := L_amt;
                    dbms_output.put_line('Approval check is:' || L_app_check);
                    dbms_output.put_line('Approval check exceeded? :' || O_app_check);
                    dbms_output.put_line('Parameter for Approval check is:' || O_v_app_check);
                        ELSIF C3.PO_AMT <= L_approval_limit then
                    dbms_output.put_line('Approval limit not exceeded');
                    dbms_output.put_line('Approval check is:' || L_app_check);
                    dbms_output.put_line('Parameter for Approval check is:' || O_v_app_check);
                                L_app_check := 0;
                                O_v_app_check := 0;
                        END IF;
               IF c3.PO_AMT > c2.OTB_AMT1 THEN         -- Checking whether amount greater than OTB amount
                    dbms_output.put_line('OTB AMT is :' || c2.otb_amt1);
                    dbms_output.put_line('OTB limit Exceeded');
                             L_otb_check := 1;
                                O_app_check := 'T';
                                O_v_otb_check := 1;
                    O_amt := L_amt;
                    dbms_output.put_line('OTB check is:' || L_otb_check);
                    dbms_output.put_line('OTB check exceeded? :' || O_app_check);
                    dbms_output.put_line('Parameter for OTB check is:' || O_v_otb_check);
                        ELSIF C3.PO_AMT <= C2.OTB_AMT1 THEN
                    dbms_output.put_line('OTB limit not exceeded');
                                L_otb_check := 0;
                                O_v_otb_check := 0;
                    dbms_output.put_line('OTB check is:' || L_otb_check);
                    dbms_output.put_line('Parameter for OTB check is:' || O_v_otb_check);
                        END IF;
                END LOOP;
                CLOSE C_OTB_CALCULATE;
        END LOOP;
        CLOSE c_PO_AMT;
     IF L_app_check = 0 and L_otb_check = 0 then
          SELECT ORDER_NO, STATUS                     -- Checking whether there is a duplicate order number
          INTO L_order_no, L_status
          FROM AFE_POAPPROVAL
          WHERE ORDER_NO = I_ord_num;
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               UPDATE AFE_POAPPROVAL
               SET STATUS = 'C'
               WHERE ORDER_NO = I_ord_num;
               COMMIT;
          END IF;
          INSERT INTO AFE_POAPPROVAL                    -- Inserting the record into AFE_POAPPROVAL when OTB and approval limit is below the PO amt
                VALUES (I_ord_num, 1,'O',I_u_id,'ROLE1','N','N', SYSDATE,'S', L_amt);
          dbms_output.put_line('Inserted Record into AFE_POAPPROVAL');
                COMMIT;
        END IF;
      ELSIF L_code = '2' THEN                            -- If user id is category manager
     dbms_output.put_line('User is Category manager (ROLE 2)');
           O_rol := '2';
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              FROM RTK_ROLE_PRIVS r, CODE_DETAIL c
              WHERE r.role = c.CODE_DESC
              AND c.CODE = L_code;
           dbms_output.put_line('Approval limit is :' || L_approval_limit);
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              LOOP
                   FETCH c_PO_AMT into c3;
                EXIT when c_PO_AMT%notfound;
          dbms_output.put_line('Entered 1st loop');
                OPEN C_otb_CALCULATE(c3.order_type, TO_DATE(c3.po_month,'MONYYYY'), c3.dept, c3.class);
                LOOP
                     FETCH C_OTB_CALCULATE into c2;
                        EXIT WHEN C_OTB_CALCULATE%notfound;
               dbms_output.put_line('Entered 2nd loop');
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               dbms_output.put_line('PO AMT is:' || L_amt);
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                                O_app_check := 'T';
                                O_v_app_check := 1;
                    O_amt := L_amt;
                    dbms_output.put_line('Approval check is:' || L_app_check);
                    dbms_output.put_line('Approval check exceeded? :' || O_app_check);
                    dbms_output.put_line('Parameter for Approval check is:' || O_v_app_check);
                        ELSE
                    dbms_output.put_line('Approval limit not exceeded');
                                L_app_check := 0;
                                O_v_app_check := 0;
                    dbms_output.put_line('Approval check is:' || L_app_check);
                    dbms_output.put_line('Parameter for Approval check is:' || O_v_app_check);
                        END IF;
                        L_otb_amt1 := c2.OTB_AMT1;
               dbms_output.put_line('Selecting tolerance limit');
                        SELECT cd.code_desc                                     -- will be chekcing the tolerance limit
                        INTO L_tolerance_limit
                        FROM CODE_DETAIL cd, CODE_HEAD ch
                        WHERE ch.CODE_TYPE = cd.code_type
                        AND ch.CODE_TYPE = 'OTBT';
                        L_tolerance_limit := to_number(L_tolerance_limit);
               dbms_output.put_line('Tolerance limit is:' || L_tolerance_limit);
                        L_otb_limit := c2.OTB_AMT1-(c2.OTB_AMT1 * (1- (L_tolerance_limit/100))); -- Will be calculating the tolerance limit
               dbms_output.put_line('OTB AMT is :' || L_otb_amt);
                        IF c3.PO_AMT > L_otb_limit THEN         -- Checking whether amount greater than OTB amount
                    dbms_output.put_line('OTB limit exceeded');
                             L_otb_check := 1;
                                O_app_check := 'T';
                                O_v_otb_check := 1;
                    O_amt := L_amt;
                    dbms_output.put_line('OTB check is:' || L_otb_check);
                    dbms_output.put_line('OTB check exceeded? :' || O_app_check);
                    dbms_output.put_line('Parameter for OTB check is:' || O_v_otb_check);
                        ELSE
                    dbms_out.put_line('OTB Limit not exceeded');
                                L_otb_check := 0;
                                O_v_otb_check := 0;
                    dbms_output.put_line('OTB check is:' || L_otb_check);
                    dbms_output.put_line('Parameter for OTB check is:' || O_v_otb_check);
                        END IF;
                END LOOP;
                CLOSE C_OTB_CALCULATE;
              END LOOP;
              CLOSE c_PO_AMT;
              IF L_app_check = 0 and L_otb_check = 0 THEN
                SELECT ORDER_NO, STATUS                     -- Checking whether there is a duplicate order number
          INTO L_order_no, L_status
          FROM AFE_POAPPROVAL
          WHERE ORDER_NO = I_ord_num;
          IF L_status = 'O' then                         -- If found and its stauts is open, update the record by changing the status column to C
               UPDATE AFE_POAPPROVAL
               SET STATUS = 'C'
               WHERE ORDER_NO = I_ord_num;
               COMMIT;
          END IF;
                INSERT INTO AFE_POAPPROVAL                    -- Inserting the record into AFE_POAPPROVAL when OTB and approval limit is below the PO amt
                VALUES (I_ord_num, 1,'O',I_u_id,'ROLE2','N','N', SYSDATE, 'S', L_amt);
                COMMIT;
          dbms_output.put_line('Inserted Record into AFE_POAPPROVAL');
              END IF;
       ELSIF L_code = '3' THEN                                         -- If user id is category head
     dbms_output.put_line('User is Category Head (ROLE3)');
            O_rol := 3;
        OPEN c_PO_AMT;                                          -- OTB check based on dept,class
        LOOP
             FETCH c_PO_AMT into c3;
                EXIT when c_PO_AMT%notfound;
          dbms_output.put_line('Entered 1st loop');
                OPEN C_OTB_CALCULATE(c3.order_type, to_date(c3.po_month,'MONYYYY'), c3.dept, c3.class);
                LOOP
                     FETCH C_OTB_CALCULATE into c2;
                        EXIT WHEN C_OTB_CALCULATE%notfound;
               dbms_output.put_line('Entered 2nd loop');
                        L_amt := c3.PO_AMT;
               dbms_output.put_line('PO AMT is :' || L_amt);
                        IF c3.PO_AMT > c2.OTB_AMT1 THEN         -- Checking whether amount greater than OTB amount
                    dbms_output.put_line('OTB AMT is :' || c2.otb_amt1);
                    dbms_output.put_line('OTB Limit exceeded');
                             L_otb_check := 1;
                                O_app_check := 'T';
                                O_v_otb_check := 1;
                    O_amt := L_amt;
                    dbms_output.put_line('OTB check is:' || L_otb_check);
                    dbms_output.put_line('OTB check exceeded? :' || O_otb_check);
                    dbms_output.put_line('Parameter for OTB check is:' || O_v_otb_check);
                        ELSE
                    dbms_output.put_line('OTB limit not exceeded');
                                L_otb_check := 0;
                                O_v_otb_check := 0;
                    dbms_output.put_line('OTB check is:' || L_otb_check);
                    dbms_output.put_line('Parameter for OTB check is:' || O_v_otb_check);
                        END IF;
                END LOOP;
                CLOSE C_OTB_CALCULATE;
        END LOOP;
        CLOSE c_PO_AMT;
        IF L_otb_check = 0 THEN
IF L_otb_check = 0 THEN
          OPEN C_RECORD_CHECK;
          LOOP
               FETCH C_RECORD_CHECK INTO L_RECORD_CHECK;
               EXIT WHEN C_RECORD_CHECK%notfound;
               IF C_RECORD_CHECK%FOUND THEN
                    UPDATE AFE_POAPPROVAL
                    SET STATUS = 'C'
                    WHERE ORDER_NO = I_ord_num;
                    COMMIT;
               END IF;
          END LOOP;
          INSERT INTO AFE_POAPPROVAL                    -- Inserting the record into AFE_POAPPROVAL when otb and approval limit is below the po amount
                 VALUES (I_ord_num, 1,'O',I_u_id,'ROLE3','Y','N', SYSDATE,'S', L_amt);
                 COMMIT;
          dbms_output.put_line('Inserted Record into AFE_POAPPROVAL');
        END IF;
     END IF;
EXCEPTION
     WHEN OTHERS THEN
        O_error_message := SQL_LIB.CREATE_MSG('PACKAGE_ERROR',
                                               SQLERRM,
                                               L_program,
                                               TO_CHAR(SQLCODE));
END AFE_CHECK_SUBMIT;
/Now i am executing the procedure ...
SQL>SQL> @OUT_SUBMIT;
Enter value for user: RMS12DEV
old 12: o_user :='&user';
new 12: o_user :='RMS12DEV';
Enter value for order: 6139
old 13: o_order :=&order;
new 13: o_order :=6139;
User id is :RMS12DEV
Selecting the role
No Record in table
Role is :
o_rol:
O_app_check:
O_v_app_check:
O_v_otb_check:
O_amt:
O_ERR_MSG: N
O_error_message:
PL/SQL procedure successfully completed.
If you have looked at the output .. after the variable is intialized to 'N', still I am getting msgs displayed .. Hope this is clear .. Now can you suggest the solution...
Regards
Message was edited by:
Seshu
Message was edited by:
Seshu

Best way to return large resultsets

Hi everyone,
I have a servlet that searches a (large) database by complex queries and sends the results to an applet. Since the database is quite large and the queries can be quite general, it is entirely possible that a particular query can generate a million rows.
My question is, how do I approach this problem from a design standpoint? For instance, should I send the query without limits and get all the results (possibly a million) back? Or should I get only a few rows, say 50,000, at a time by using the SQL limit construct or some other method? Or should I use some totally different approach?
The reason I am asking this question is that I have never had to deal with such large results and the expertise on this group will help me avoid some of the design pitfalls at the very outset. Of course, there is the question of whether the servlet should send so may results at once to the applet, but thats probably for another forum.
Thanks in advance,
Alan

If you are using a one of the premiere databases (Oracle, SQL Server, Informix) I am fairly confident that it would be best to allow the database to manage both the efficiency of the query, and the efficiency of the transport.
QUERY EFFICIENCY
Query efficiences in all databases are optimized by the DBMS to a general algorithm. That means there are assumptions made by the DBMS as to the 'acceptable' number of rows to process, the number of tables to join, the number of rows that will be returned, etc. These general algorithms do an excellent job on 95+% of queries run against database. However, f you fall outside the bounds of these general algorithms, you will run into escalating performance problems. Luckily, SQL syntax provides enourmous flexibility in how to get your data from the database, and you can code the SQL to 'help' the database do a better job when SQL performance becomes a problem. On the extreme, it is possible that you will issue a query that overwhelms the database, and the physical resources available to the database (memory, CPU, I/O channels, etc). Sometimes this can happen even when a ResultSet returns only a single row. In the case of a single row returned, it is the intermediate processing (table joins, sorts, etc) that overwhelms the resources. You can help manage the memory resource issue by purchasing more memory (obviously), or re-code the SQL to a more apply a more efficent algorithm (make the optimizer do a better job), or you may as a last resort, have to break the SQL up into seperate SQL statements, using more granual approach (this is your "where id < 1000"). BTW: If you do have to use this approach, in most casees using the BETWEEN is often more efficient.
TRANSPORT
Most if not all of the JDBC drivers return the ResultSet data in 'blocks' of rows, that are delivered on an as needed basis to your program. Some databases alllow you to specify the size of these 'blocks' to aid in the optimization of your batch style processes. Assuming that this is true for your JDBC driver, you cannot manage it better than the JDBC driver implementation, so you should not try. In all cases, you should allow the database to handle as much of the data manipulation and transport logic as possible. They have 1000's of programmers working overtime to optimzie that code. They just have you out numbered, and while it's possible that you can code an efficiency, it's possible that you will be unable to take advantage of future efficiencies within the database due to your proprietary efficiencies.
You have some interesting, and important decisions to make. I'm not sure how much control of the architecture is available, but you may want to consider alternatives to moving these large amounts of data around through the JDBC architecture. Is it possible to store this information on the server, and have it fetched using FTP or some other simple transport? Far less CPU usage, and more efficient use of your bandwith.
So in case it wasn't clear, no, I don't think you should break up the SQL initially. If it were me, I would probably spend the time in putting out some metic based information to allow you to better judge where you are having slow downs when or if any should occur. With something like this, I have seen I.T. spend hours and hours tuning SQL just to find out that the network was the problem (or vice versa). I would also go ahead and run the expected queries outside of application and determine what kind of problems there are before coding of the application is finished.
Hey, this got a bit wordy, sorry. Hopefully there is something in here that can help you...Joel

Best way to transfer large datasets between actors (Actor framework)

Hi everyone
I am in the planning / design phase of a larger application for which I wish to use the Actor Framework. It seems like a good "design pattern", easy for multiple developers to work on, easy to expand and easy to maintain.
In this application I need to transfer data betweeen actors/modules at a considerable rate. The data is the continous measurements from a DAQ device (or multiple devices) sampling at 200kHz. That's 200 kHz * 8 byte = 1.5 Mb/s per device.
There is no way this is done using the messages of the actor framework - those messages are designed to signal start, stop, select tasks etc. within the application. So how to transfer that amount of data between actors?
I've thought about using TCP/IP on localhost - this could also easily be expanded to allow different parts of the program to run on different machines on a network. I've even tested it and it works quite well. But I would like to hear some opinions or alternatives before I decide to go with this solution. Any thoughts or alternatives?
Thanks
Jonas

JonasCJ wrote:
Could this be done without TCP/IP and just a LABVIEW queue? Passing the queue in a message from one actor to another?
If it's in the same process then yes, and it would be more efficient, because with TCP you have to create a copy when converting the data to a string, another copy when receiving and a third one when converting back. Unless you really are planning on distribtuing it, I would suggest avoiding that. Sidebar - AQ has been talking about networked actors and I believe there should even be an experimental branch in the AF group in the community area. You might want to check that out.
Incidentally, if you are planning on splitting it and don't actually need the real time processing, you might consider saving the data to a network drive and then simply having the other side loading the data from the file. It should be simpler.
Try to take over the world!

What is the best way to zoom in and out of pictures, documentary style?

I'm new to Adobe Premiere and I was looking to a make a mock documentary in which there would be slow zoom in's of photo's while the narrator is talking. If you could imagine what I'm talking about.
Could anyone tell me how you would accomplish that?
Thanks

It looks like my image has disappeared from my earlier post. I will link to it again at the end of this post.
Ann, I do not understand what you are disagreeing with. You posted a link to a tutorial. I watched it. I don't mean to be troublesome, but Jeff never touched the anchor point once. He pointed it out so people would know what the symbol was, but he never changed the value. If you prefer to use it, that's fine. I merely suggested that doing it the way Jeff did it in the tutorial was the easiest way for most people to begin. You are not a beginner. The fact that you have different ways to do things is not at all unusual. I would be shocked if professionals did everything the basic way that a beginner would do it.
Yes, of course my tutorials are ancient. I don't disagree with that. However, I think I did a pretty decent job on keyframes way back then. I don't believe that anything has changed regarding keyframes between 1.5 and CS6. There are certainly more fixed effects, but the keyframes act the same way.
Perhaps I should not have poked fun at Jeff since you seem to have taken it personally. I have never met him, and all I know is that he is a good teacher, as I said in my earlier post. I don't apologize for finding it funny that he missed something simple. We all miss things . It happens. I do apologize for poking fun at him. And if he felt offended, I am sorry. That wasn't the purpose.
I never suggested that a new user should watch my tutorials, by the way. I know there are people who do watch them because I still get royalties even after all these years (Thank you Lynda for making that possible), and I assume that they have much earlier versions that they can't afford to upgrade. And if they are editing DV, perhaps there is no need to upgrade. I can certainly see why people would want to upgrade, but I have met some pretty poor people in my life who use some really old, donated computers, and who reuse DV tapes over and over again. Not everybody upgrades once they find something that works for them. A few years back I bought a box of new DV tapes to donate on one of my trips and you would have thought that they were made out of gold the way they were received.
But Jeff is not a new user. I believe that as a fellow Lynda.com author, it would not be considered out of place for him to have watched all of the older Lynda.com tutorials in order to have a better grasp on what earlier authors did right, and what they did wrong. What made things easier to understand, and what just caused more confusion. I don't know that he did or didn't. I merely poked fun at his trouble finding the little white dots.
I admit that I am not a professional videographer or photographer. In fact, I will say that I am merely a dilettante who has been lucky enough to be in the right place at the right time to make some money producing tutorials, helping revise books, and reviewing other people's books and tutorials for possible errors, and to make sure that the instructions can be followed to achieve the stated goal. I am a mere technician and a fairly decent researcher. I am not at all sure I have an artistic bone in my body. But I am a pretty good teacher and someone to whom an artist might turn for technical advise. So don't think that throwing the word "professional" around is going to hurt my feelings in any way, or make me think that someone must be technically more adept because they shoot weddings, or commercials, or even feature films. Well, maybe feature films I would hope that they are considerably more artistic and imaginative than I am, but possibly not that much more technically competant.
Back to the little white dots. Most of the time, the image is such that the dots don't hide from you. Now and then, the image gets pretty busy and it is difficult to see. When that happens, looking at just the bounding box and the curves makes it easier. Once it a while it doesn't help to make the image bigger. So this is the workaround. Not the main way to do it. Just when the problem that Jeff was happening in the tutorial I watched comes about.
By the way, as a side note, Lynda Weinman is a delightful person. I can't begin to tell you how thrilled I was when I got to go to lunch with her once during the week I spent in the Lynda.com soundbooth working on my tutorials. She is just as pleasant as can be. I wish I might have gotten a chance to continue to do them over the years, but the other authors have all done an excellent job. And as I mentioned before, I am a bit dry.
The subscription to Lynda.com is worth every penny when you consider the value that Lynda.com offers over YouTube and even Creative Cow tutorials.

Best way to make a burn out effect like in this film?

I am trying to figure out how to make the same kind of film burn out effect like this short film has in the beginning.
Check out the beginning of this short film. The yellow/red burn outs that are on the first couple of clips, what is the easiest way to make them in Motion (or FCP)?
I've been fumbling a bit with the "Cool" emitter in Motion, but can't get the same feel.
Please give me some tips, if you can.
Oh and here is a link for the short film I am referring to:
http://frenchquarterfeatures.com/movies/eighteen_seconds.640.mov
Thanks in advance...

The effect emulates fogging of the film, as if someone opened the camera before the film had been taken up onto the reel or into the magazine.
I'd download that clip, convert it to a useable format and play with keying filters till I got mostly the flashes. Then I'd start adding masked layers and shapes to fill in the rest or to cover up residual hunks of the film's stars. Precompose or render. This will give you a place to start. Use it to blend in a moving red-yellow image.
Or look at ARTBEATS site and see what they've got for film burn effects (not Ken Burns effects). I'll be tthta's where this filmmaker got his/hers.
bogiesan

Best way to return complex datasets out of a procedure

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