Sum distinct by multiple key

How do I sum the first observation of a field from many observations with the same key. (sum distinct by multiple key)?

And if it fits your requirements:
select column, sum(distinct column)
from table
group by column;
-cf
(btw, how do you make your SQL appear in Courier font?)
Message was edited by:
[email protected]

Similar Messages

Sum Distinct for a measure object

Hi,
Can anybody let me know how to go ahead and get a sum distinct for a particular measure object in a Universe?

If your database supports the syntax, you can simply use SUM(DISTINCT table.measure_column) and it should apply the distinct function. Note, however, that this can result in under-reporting certain values. For example, assume you have two sales orders with the same amount: $100. As long as you include the order number (or primary key order_id or otherwise) you will get a total of $200. But if you remove order number, the sum(distinct) will see two equal values (both $100) and your total will only be $100 instead of the correct answer $200.
What is the real problem you are trying to solve?

How to insert autoincrement record and query it with multiple keys

Hi all,
I am not familiar with BerkeyleyDB, I am now doing a project that needs to insert records and then query it out with multiple keys at later time. Since there is no field that can be distinct primary key, I want to user DbSequence as auto increment primary key to db, and set other index keys as secondary db, then using join cursor to do query with multiple keys.
I don't know how to use DbSequence, can anyone direct me to a example of using DbSequence as auto increment primary key?
Regards
-Bruce

I figured out the method to insert record with auto increment primary key. I listed the code block below:
char m_SeqNamePositions[32] = "MyPositions";
DbSequence *m_pSeqPositions;
m_pDBPositions = new Db(NULL, 0);
          m_pDBPositions->open(NULL, pszFileName, szFileName, DB_BTREE, DB_CREATE, 0);          // 无数据文件
          m_pSeqPositions = new DbSequence(m_pDBPositions, 0);
          Dbt key((void *)m_SeqNamePositions, (u_int32_t)strlen(m_SeqNamePositions));
          m_pSeqPositions->open(NULL, &key, DB_CREATE);
db_seq_t SeqNum;
     m_pSeqPositions->get(0, 1, &SeqNum, 0);
     Dbt key((void *)&SeqNum, (u_int32_t)sizeof(SeqNum));
     Dbt data(pRecord, sizeof(*pRecord));
     return m_pDBPositions->put(NULL, &key, &data, DB_NOOVERWRITE);
m_pSeqPositions->close(0);
          m_pDBPositions->close(0);
delete m_pSeqPositions;
delete m_pDBPositions;
          m_pDBPositions = NULL;

Calculations with Sum Distinct Aggregations

Hi,
I got a problem. I use in one of my analysis a Pivot Table. One of my measures which I sum up has multiple entries in my tables. So I decided to use a Sum Distinct aggregation. The Sum Distinct aggregation works perfect. But when I want to do basic calculations with the measure I get wrong results. It seems that in the calculation the aggregation is just a SUM and not a Sum Distinct. In the calculation I subtract the measure from a constant. But I only get wrong result with the redundant entries.
Pivot table:
Name --- Days available --- Days worked (measure)--- Days left (= Days available minus Days worked)
Mr. A --- 60 --- 5 ---- 55
Mr. A --- 60 --- 10 --- 50
Mr. A --- 60 --- 35 --- 25
---------- Sum ---- 50 --- -45 (wrong result)
Is there a solution to this problem?
thx
Edited by: Backlit on 31.07.2011 11:29

Hi,
and thx for the quick answer. But unfortunately the Server Complex Aggregate aggregation doesn't solve my problem. I also think I didn't express my self clear enough.
My problem is, that I have the same tuple multiple times in my database table. When I sum this data up - I get wrong results. To avoid this I used the SUM DISTINCT aggregation. This worked very fine. But now I'm facing an other problem. I have to perform a simple subtraction.
I have a fixed non measure value. I have to subtract the Sum Distinct measure from this fix value for a specified time periode.
it looks like this:
Pivot table
Name --- Days available(non measure) --- Work date --- Days worked (SUM) measure --- Days worked SUM(Distinct) measure
Mr.A --- 40 --- 1.5 --- 6 --- 3
Mr.A --- 40 --- 1.5 --- 6 --- 3
Mr.A --- 40 --- 2.5 --- 6 --- 3
Mr.A --- 40 --- 3.5 --- 6 --- 3
Mr.A --- 40 --- 3.5 --- 6 --- 3
Mr.A --- 40 --- 3.5 --- 6 --- 3
SUM ---- 40 --- .... ---- 6 --- 3 -> Days left: 34 (wrong result - should be 37)
I get the right result - but when I now try to calculate "Days available - Days worked SUM(Distinct)" I get the same results like I would do the calculation with
"Days available - Days worked SUM".
And is there a way to hide the multiple values in Days worked?
thx

How do you register multiple key presses at the same time?

Hi. I'm trying to write a first person game in OpenGL and I'm having some trouble with key listening. Right now I just use the basic AWT KeyListener. The problem that arises is that whenever I hold down a key, such as a movement key, there is a short pause after it moves me in the appropriate direction, and only after the pause does it start continuously moving me. In addition to that, I can't press multiple keys at once to get diagonal movement (I use WASD for movement). Is there something I can do with AWT to fix both of these problems, or is there something other than AWT that I should use that would be better?

the pause is the typomatic rate of the keyboard, you can avoid that by using the keyPressed and setting a flag then a sleep(myDelayTime).... if they keyRelease--and clearing of the flag--hasn't happened after the sleep, then you're key is still down so keep firing, moving, or what ever.

Adding Sum Totals from Multiple Tables in A single Document

Hello All,
I'm having trouble adding sum totals from multiple tables I've created in a Pages 09 doc. I putting together a spreadsheet for cost projections for a house remodel. I created tables for each room of the house. At the bottom of the document I'd like to have another table that takes the totals from each individual room and adds them up. Problem appears to be that each table has the same x/y axis labels so row and column numbers/letters are repeated so the final table can't quantify thing correctly.
Any easy solutions? I can't find anything that's helped in my search efforts.
Thanks,
Josefis

Jerry,
Thanks for the feedback. I thought that might be the case. And you were correct to assume I was more comfortable in Pages. I'm halfway through converting everything to numbers. In the end it will work great too. Just some different formatting/design choices to be made as numbers doesn't appear to be as versatile in the same way pages is with design. So far it looks pretty good though.
Thanks again,
Josefis

How to get Multiple Key Combinations

Hi,
I am trying to get the event for multiple key combinations, ie some thing like "*Ctrl + I + M*" or "*Alt + A + S + D*".
For two key combinations ( like Ctrl+I or Ctrl+M) i am able to get, but for more than two keys combinations, can someone give an idea how to get it.
I tried with both KeyCodeCombination and KeyCharacterCombination.
Below is a quick example to check for the key combination demo.
import javafx.application.Application;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.input.KeyCharacterCombination;
import javafx.scene.input.KeyCode;
import javafx.scene.input.KeyCodeCombination;
import javafx.scene.input.KeyCombination;
import javafx.scene.input.KeyEvent;
import javafx.scene.layout.StackPane;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
public class KeyCombinationDemo extends Application {
     Stage stage;
     Scene scene;
     StackPane root;
     public static void main(String[] args) {
          Application.launch(args);
     @Override
     public void start(Stage stage) throws Exception {
          this.stage = stage;
          root = new StackPane();
          root.getChildren().add(new Label("Enter any Key"));
          this.scene = new Scene(root, Color.LINEN);
          stage.setTitle(this.getClass().getSimpleName());
          stage.setWidth(600);
         stage.setHeight(600);
         stage.setScene(this.scene);
         stage.show();
          final KeyCombination keyComb1=new KeyCodeCombination(KeyCode.I,KeyCombination.CONTROL_DOWN);
          final KeyCharacterCombination keyComb2 = new KeyCharacterCombination("M",KeyCombination.CONTROL_DOWN);
          this.scene.addEventHandler(KeyEvent.KEY_RELEASED, new EventHandler<KeyEvent>() {
               @Override
               public void handle(KeyEvent event) {
                    if(keyComb1.match(event)){
                         System.out.println("Ctrl+I pressed");
                    }else if(keyComb2.match(event)){
                         System.out.println("Ctrl+M pressed");
}Thanks in Advance.
Regards,
Sai Pradeep Dandem.

Hi John,
Thanks for the prompt response.
I tried the way you suggested and it worked well !! Thanks :)
But, still i am expecting a direct way to handle this. :p
Anyway here is code which i modified accordingly
final String keyCombination1 = "_ALT_E_O";
final String keyCombination2 = "_ALT_E_P";
final String keyCombination3 = "_CONTROL_H";
final StringBuilder key = new StringBuilder();
this.scene.addEventHandler(KeyEvent.KEY_PRESSED, new EventHandler<KeyEvent>() {
     @Override
     public void handle(KeyEvent event) {
          String codeStr = event.getCode().toString();
          if(!key.toString().endsWith("_"+codeStr)){
               key.append("_"+codeStr);
this.scene.addEventHandler(KeyEvent.KEY_RELEASED, new EventHandler<KeyEvent>() {
     @Override
     public void handle(KeyEvent event) {
          if(key.length()>0){
               if(key.toString().equals(keyCombination1)){
                    System.out.println("Key Combination 1 pressed");
               }else if(key.toString().equals(keyCombination2)){
                    System.out.println("Key Combination 2 pressed");
               }else if(key.toString().equals(keyCombination3)){
                    System.out.println("Key Combination 3 pressed");
               key.setLength(0);
});Thanks & Regards,
Sai Pradeep Dandem

Multiple key level associations

Hi,
I am getting the below error during the consistency check.
Table, X, has multiple key level associations.
Can anyone please let me know the reason for the same.
Also, when I drag the physical tables from the physical layer to the BMM Layer, there are some default primary keys in the Logical Table.What considerations does OBIEE take into when deciding upon the Primary Key in the Logical table.
Thanks in Advance
Akshatha

"can you check the keys foreign keys for those table "
You didn't mention what I should be checking for.
However, I think I've worked it out now.
I have a dimension table that is referenced by both other dimension tables and the fact tables. Therefore, when imported into BI, both the dimension tables and the fact tables have foreign keys to this common dimension table.
I'm guessing that the foreign keys on the dimension tables are not required - because there are foreign key references from the fact tables to the common table anyway. Bearing in mind that this is a star schema and not a snowflake schema.
=> I deleted all the foreign keys from all my dimension tables, and now the consistency check works ok.

How to get sum distinct in the cube. Is it possible.

Here is the scenario.
One report has many countries on it but only one amount.
For a particular day we have the following data in the fact.
TRANSACTION_DAY_NO
Country
Total Amount
19900101
US
34
19900101
IND
35
19900101
IND
36
19900101
AUS
37
19900101
UNKNOWN
38
19900101
UNKNOWN
39
19900101
UNKNOWN
40
19900101
UNKNOWN
41
19900101
UNKNOWN
42
19900101
UNKNOWN
43
19900101
US
43
19900101
IND
42
There are 2 dimensions on the cube.
Date, Country.
I am not sure how to build a cube on this data.
with t as (
select 19900101 transaction_Day_no,     'US' country_no,     34 total_amount from dual union all
select 19900101,    'IND',         35 from dual union all
select 19900101,    'IND',         36 from dual union all
select 19900101,    'AUS',         37 from dual union all
select 19900101,    'UNKNOWN',    38 from dual union all
select 19900101,    'UNKNOWN',    39 from dual union all
select 19900101,    'UNKNOWN',    40 from dual union all
select 19900101,    'UNKNOWN',    41 from dual union all
select 19900101,    'UNKNOWN',    42 from dual union all
select 19900101,    'UNKNOWN',    43 from dual union all
select 19900101,    'US',    43 from dual union all
select 19900101,    'IND',    42 from dual
select transaction_day_no, country_no, sum(distinct total_amount) from t
group by cube(transaction_Day_no, country_no);
I am using AWM. I have tried to build by selecting the following aggregate for the cube
max for the country_no and
sum for the tranaction_Day_no
But i am getting incorrect results.
If i select sum for both country_no and transaction_no then also i get incorrect results.
Please help me solve this issue.
thanks

Thanks for all your reply's.
The problem is that i have duplicates because
One report can have many customers.
One customer can have many countries.
One customer can have many reports.
If i include the report number in the above data and do a sum on both day and report_number and max for everything else then everything is find and i am getting correct results.
But if i take out the report dimension then i am stuffed.
Also the problem is that i can't have one big dimension for the report as the number of reports are in access of 300M
We have tried to solve this issue by having the fullowing.
Dummy Cube.
This has all the combination of all the dimension in the fact table with the report dimension as only one row(-1)
Report Dimension for each Quarter(34M rows each)
Quarter Cube is build.
Then add the values from all the Quarter Cube with the Dummy Cube.
Tried for 2 Quarter and its working fine results are correct as well.
Only problem is that its taking a long time to build the cube because of the report dimension.
I am trying to find a way to remove the report dimension but still use it. As we only use report dimension at level 'ALL'
But if we do aggregation at 'ALL' level the answers are wrong again.
Thanks for looking into this and taking time to reply.
Regards
Alvinder

BPC for Excel: Are multiple key ranges really possible?

Hi Experts,
in a training document I found to possibility of multiple key ranges, to make an input schedule sheet more attractive or insert rows with excel formulas etc.
For example: ColKeyRange: EVRNG(H13:J13;M13:O13)
RowKeyRange: EVRNG(G15:G20;L15:L20)
In my case I want the balance sheet separated. On the left side asset positions, on the right side liability positions (in columns for bot: Previous Year | Actual | Plan
If I define my input schedule like that it gets messed up. No figures, weird formatting etc. Have you implemented an input schedule with multiple key ranges and did it work ok?
Thank you,
Cora

Hi Cora,
Yes, multiple key ranges do work, but it is a bit complicated as Dzmitry suggests. Your example row expansion will not work, as the row expansion needs to remain in the same columns for each part of the expansion. (In other words, EVRNG(G15:G20;L15:L20) is wrong but EVRNG(G15:G20;G25:G30) is ok.) To achieve your result, Dzmitry is correct that you will probably need to use two EVDREs.
That said, multiple expansions work as follows:
If you are not using an expansion, or you use NOEXPAND in your columns or rows, you can use a multiple key range for formatting purposes and simply hardcode in the members that you wish to see in each key range.
If you want to see different expansions in each key range, then you need to use a special expansion syntax. To take your example, say you have a single dimension in your column with column range defined EVRNG(H13:J13;M13:O13). You could have your column expansion on the category dimension be "PRIORYR,ACTUAL,PLAN|PLAN,ACTUAL,PRIORYR", giving you the same set of categories reversed in each column.
Ethan

Thinkpad keyboard problem - some keys generate multiple keys when pressed

thinkpad keyboard problem - some keys generate multiple keys when pressed
For example, "t" generates "tr", "y" generates "yu", "backspace" generates "backspace" plus "IBM access connections", "m" generates "mn" and "n" generates "mn". Not all keys are wrong.
For what it's worth, the odd behaviour started shortly after a trip to Miami in which I had a meeting at a cafe in which we were undercover but it was pouring cats and dogs - it was like having a meeting in a sauna - so I am wondering if the high humidity could have caused the behaviour.
I tried replacing the keyboard but the new keyboard has the same problem.
The machine in question is a Thinkpad T23 running Windows XP Pro
Any help would be appreciated as I am now in Los Angeles using a borrowed Mac! :-)

i have something along the lines of the same problem.
http://bbs.archlinux.org/viewtopic.php?id=56777
my conclusion is something in the last system update screwed it up.

Select sum(distinct column ) from ....

Hello All,
I have a table the contains ID and size.
An ID identifies a unique object, but it can be repeated. The following is valid:
ID Size
1 3
4 5
5 3
1 3
What I am trynig to do is get the sum of all sizes in the table. I tried this query:
select sum(distinct size) from table;
But it does give the right result since different objects could have the same size. I tried
select sum(size) group by ID;
But it prints to me huge number of IDs and sums the sizes of an ID together. What I want thuogh is to look at the unique rows (without duplicates) and then sum their sizes together and get the result.
Any help would be greatly appreciated.
Thank you
P.S.: Sorry, I am an absolute Oracle/SQl newbie.
Thanks for your help in advance

An ID identifies a unique object, but it can be repeated.Fnord.
I think your data model could withstand some refactoring but what you need to do is:
SELECT sum(size) FROM
( SELECT distinct id, size FROM your_table)
/This of course assumes that your duplication is complete and you don't have duplicate IDs with different sizes.
You still ought to check out the concept of UNIQUE constraints though. A database ain't a database without relational integrity.
Cheers, APC

How to sort on MULTIPLE Keys which are elements of VO's stored in list

How to sort on MULTIPLE Keys which are elements of VO's stored in a list.. without disturbing the ordering done by previous sorting...?
Is there any best soln for the same...
Thanks..

How to sort on MULTIPLE Keys which are elements of
VO's stored in a list.. without disturbing the
ordering done by previous sorting...?Do you mean you want to do a heirarchical sort? Where the secondary key is only used when the primary keys are equal etc.? That's pretty trivial. If the primary keys are equal, check the secondary key. How do you sort words in alphabetical order? It's the same process.

BDB- Recno multiple key/data pairs retrieval

Hey,
I am new to BDB and have just started to work with Berkley DB (ver. 5.3.15) using the Linux C API.
I set up a simple Recno DB which is populated with sequential keys 1,2,3….100. DB Records are in variable length size, although, I am limiting them to a max size.
Below are the environment and DB open flags I am using:
dbenv->open(dbenv, DB_HOME_DIR, DB_SYSTEM_MEM | DB_INIT_LOCK | DB_CREATE | DB_INIT_MPOOL, 0)
dbp->open(dbp, NULL, NULL,DATABASE_NAME, DB_RECNO, DB_CREATE, 0664))
Single record get/put or using cursor to iterate over the all DB works well.
However, I would like to retrieve multiple records in a single get call.
These records can be non-sequential.
For example, retrieving 3 records with the keys 4,89,90. I prefer the bulk buffer to be as minimal as possible (avoiding stack or heap unnecessary memory allocation).
I was reading and saw few examples about using bulk retrieval. Though, I couldn’t find any example for racno bulk get on multiple specified keys.
From what I figured out till now, it seems that I should use:
Get flags: DB_SET_RECNO, DB_MULTIPLE_KEY. And the macros: DB_MULTIPLE_INIT and DB_MULTIPLE_RECNO_NEXT to iterate over a bulk buffer received.
But, I couldn’t figure it out where and how I should specify the list of Keys.
Beside, the BDB man says: "For DB_SET_RECNO to be specified, the underlying database must be of type Btree, and it must have been created with the DB_RECNUM flag."
Does the BDB open with DB_RECNO flag imply that the underlying database is Btree? If creating Btree instead of recno, wouldn’t I loss access performances?
I would appreciate if anyone could supply some guidelines or an example which will assist me to figure it out how to retrieve multiple key/data pairs from a recno DB.
Thanks in advance
Kimel

I am checking the BDB to see if it can suit my needs (mostly performance wise).
It should work on a simple home router device and should hold router runtime information (static/dynamic).
This information should be accessible for process in the system which can write or read the device info.
The DB is not require to be persistent and is recreated every reboot (memory only).
I believe the DB will hold not more then 200 parameters at max.
DB access rate is around 30 records per sec (write/read)...
Currently, I think of either BDB or maybe just use a normal Linux shared memory (random access + semaphore).
Cons and pros to each...
If I choose BDB, I will use the in memory DB and recno due to access performance considerations.
Getting back to my question, I would like to be able to read a list of parameters in a single get call.
In order to use recno, I will give every parameter a unique id (1 - ip, 2 - subnet , 3 - default gateway).
e.g: ip , subnet , default gateway. (get keys 1,2,3)
Hope you have the relevant info.
Thanks

Copy & paste multiple key frames?

Is there a way to copy and paste multiple key frames?
Thanks.

Drawing a marque around multiple keyframes is easy, too. You can select a property and all of its keyframes will be selected. You can performa sophisticated choices of non-continguous keyframes with command-select. You can also do lots of editing in the graph view.

Sum distinct by multiple key

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