Average Score Function

Hello.
I have two things I need to do but I'm not sure how. These problems come up in my EVALUATION_RESULTS table. The first thing I need to do is create a formula for the primary key EVALUATION_ID. I need to do this so that it is the EMPLOYEE_NUMBER followed by EMPLOYER_NUMBER followed by EVALUATION_ID. For instance, if the employee being evaluated has the number 10000, the employer has the number 1000, and the evaluation ID is 100, the evaluation number should automatically be 100001000100. How can I have this be created automatically after the user completes a form?
The second issue is: I need to create a function in the EVALUATION_RESULTS table that takes an average of four scores that are input in the form. So it will take (SCORE1+SCORE2+SCORE3+SCORE4)/4. How can I implement this so that the user enters the four scores, submits the form, and the AVERAGE_SCORE is added to the table.
Thanks in advance for the help.
Edited by: DanDan Sc on Jan 13, 2013 3:40 PM

Hi Dan,
your two requirements are probably not good ideas from a relational design point of view.
I have two things I need to do but I'm not sure how. These problems come up in my EVALUATION_RESULTS table. The first thing I need to do is create a formula for the primary key EVALUATION_ID. I need to do this so that it is the EMPLOYEE_NUMBER followed by EMPLOYER_NUMBER followed by EVALUATION_ID. For instance, if the employee being evaluated has the number 10000, the employer has the number 1000, and the evaluation ID is 100, the evaluation number should automatically be 100001000100. How can I have this be created automatically after the user completes a form? Doing this is committing the error of overloading. This is where a single attribute contains information for more than one attribute. From a relational design point of view, the first thing you should be identifying from your list of attributes is the natural keys. In your case it may simply be the original evaluation id (100). If this is not unique, for example more than one employee or employer may share an evaluation id, then the natural key may be a combination of some or all of the attributes you have noted. In this case the natural key would be a combination of those attributes in what is called a composite key. From an implementation point of view, it may be quite acceptable to then create your Primary Key as a combination of those columns in a composite PK. Another implementation issue is that composite PK's can become unweildy to deal with, especially if they have to be referred to in different entities as Foreign Keys. In this case, you can change the composite PK to a Unique Key and create a single part PK which will be a number that is generated from a database object called a sequence. This is generally called an artificial key. If for some business reason you need to refer your original PK in the format you suggested, as in reports or business receipts, then is is a simple exercise to retrieve it from the database as you require it.
The second issue is: I need to create a function in the EVALUATION_RESULTS table that takes an average of four scores that are input in the form. So it will take (SCORE1+SCORE2+SCORE3+SCORE4)/4. How can I implement this so that the user enters the four scores, submits the form, and the AVERAGE_SCORE is added to the table.Another principle of relational design is that you don't store anything in the database that can be derived from the existing data. Things like your average score should be calculated on the fly when ever your data is presented to the user in forms or reports.
Regards
Andre

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scott@ORA92> CREATE TABLE customers
2    (customer_id NUMBER,
3      first_name VARCHAR2(15),
4      last_name   VARCHAR2(15),
5      dummy         VARCHAR2(1),
6      CONSTRAINT customers_pk PRIMARY KEY (customer_id))
7 /
Table created.
scott@ORA92> CREATE TABLE addresses
2    (customer_id NUMBER,
3      street         VARCHAR2(15),
4      city         VARCHAR2(15),
5      state         VARCHAR2(2),
6      CONSTRAINT addresses_fk FOREIGN KEY (customer_id)
7               REFERENCES customers (customer_id))
8 /
Table created.
scott@ORA92> CONNECT CTXSYS/ctxsys_password
Connected.
scott@ORA92> @ LOGIN
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GLOBAL_NAME
ctxsys@ORA92
ctxsys@ORA92> CREATE OR REPLACE PROCEDURE concat_cols
2    (p_rowid IN     ROWID,
3      p_clob     IN OUT CLOB)
4 AS
5    v_clob            CLOB;
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10        WHERE ROWID = p_rowid)
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14         (SELECT ' ' || street || ' ' || city || ' ' || state AS data
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2    AFTER INSERT OR DELETE OR UPDATE ON customers
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4 SELECT * FROM DUAL
5 /
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3 INTO addresses VALUES (2, 'Smith St.', 'Somewhere', 'CA')
4 SELECT * FROM DUAL
5 /
2 rows created.
scott@ORA92> COMMIT
2 /
Commit complete.
scott@ORA92> EXEC DBMS_LOCK.SLEEP (15)
PL/SQL procedure successfully completed.
scott@ORA92> SELECT token_text FROM dr$customer_text_idx$i
2 /
TOKEN_TEXT
BOB
CA
JONES
NOPLACE
NOWHERE
SMITH
SOMEWHERE
ST
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scott@ORA92> VARIABLE g_words VARCHAR2(30)
scott@ORA92> EXEC :g_words := 'Bob Smith'
PL/SQL procedure successfully completed.
scott@ORA92> SELECT   SCORE (1) * 3 + SCORE (2) * 2 + SCORE (3) * 1 AS score,
2            c.first_name, c.last_name, a.street, a.city
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9 OR       CONTAINS (C.dummy,
10                'NEAR(($' || REPLACE (t2.words, ' ', ',$') || '),1)',
11                2) > 0
12 OR       CONTAINS (c.dummy,
13                '!' || REPLACE (t2.words, ' ', ' AND !'), 3) > 0)
14 ORDER BY 1 DESC
15 /
     SCORE FIRST_NAME      LAST_NAME       STREET          CITY
        40 Bob             Smith           Noplace         Nowhere
        31 Bob             Jones           Smith St.       Somewhere
scott@ORA92> UPDATE customers
2 SET    last_name = 'Williams',
3          dummy = dummy
4 WHERE last_name = 'Smith'
5 /
1 row updated.
scott@ORA92> UPDATE customers
2 SET    dummy = dummy
3 WHERE customer_id IN
4          (SELECT customer_id
5           FROM   addresses
6           WHERE city = 'Somewhere')
7 /
1 row updated.
scott@ORA92> UPDATE addresses
2 SET    city = 'Williams'
3 WHERE city = 'Somewhere'
4 /
1 row updated.
scott@ORA92> COMMIT
2 /
Commit complete.
scott@ORA92> EXEC DBMS_LOCK.SLEEP (15)
PL/SQL procedure successfully completed.
scott@ORA92> SELECT token_text FROM dr$customer_text_idx$i
2 /
TOKEN_TEXT
BOB
CA
JONES
NOPLACE
NOWHERE
SMITH
SOMEWHERE
ST
BOB
CA
JONES
NOPLACE
NOWHERE
SMITH
ST
WILLIAMS
16 rows selected.
scott@ORA92> VARIABLE g_words VARCHAR2(30)
scott@ORA92> EXEC :g_words := 'Bob Williams'
PL/SQL procedure successfully completed.
scott@ORA92> SELECT   SCORE (1) * 3 + SCORE (2) * 2 + SCORE (3) * 1 AS score,
2            c.first_name, c.last_name, a.street, a.city
3 FROM     customers c, addresses a,
4            (SELECT     LTRIM (RTRIM (REPLACE (REPLACE (REPLACE (:g_words,
5                '    ', ' '), '   ', ' '), ' ', ' '))) AS words
6             FROM     DUAL) t2
7 WHERE    c.customer_id = a.customer_id
8 AND      (CONTAINS (C.dummy, t2.words, 1) > 0
9 OR       CONTAINS (C.dummy,
10                'NEAR(($' || REPLACE (t2.words, ' ', ',$') || '),1)',
11                2) > 0
12 OR       CONTAINS (c.dummy,
13                '!' || REPLACE (t2.words, ' ', ' AND !'), 3) > 0)
14 ORDER BY 1 DESC
15 /
     SCORE FIRST_NAME      LAST_NAME       STREET          CITY
        43 Bob             Williams        Noplace         Nowhere
         3 Bob             Jones           Smith St.       Williams
scott@ORA92>

How Fuzzy score and Score() function works in HANA?

Hi,
I read fuzzy developer guide of HANA, but i am not getting how HANA calculate score() and fuzzy score?
As per developer guide, Score() is calculate using TF/IDF, and I also try to calculate TF/IDF as per WIKI page, but it gives different values. and Score() value is changed as per x value of fuzzy(x) .
See example
select score() as sc, *
from COMPANIES2
where contains(Companyname,'IBM',fuzzy(0.7))
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SC;                             ID; COMPANYNAME; CONTACT
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and for
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0.8392000198364258;     6;   IBM Corp;                   M. Master
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ID; Companyname;           contact
1; SAP Corp;                   Mister Master
2; SAP in Walldorf Corp;   Master Mister
3; ASAP;                         Nister Naster
4; ASAP Corp;                 Mixter Maxter
5; BSAP orp;                   Imster Marter
6; IBM Corp;                    M. Master
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Hi Somnath,
It seems that the column "Companyname" has data type "SHORTTEXT" and here is the quote from SAP HANA Developer Guide Ch. 10.2.4.8 (p659)
"Text types support a more sophisticated kind of fuzzy search. Texts are tokenized (split into terms), and the fuzzy comparison is performed term by term.
When searching with 'SAP' for example, a record like 'SAP Deutschland AG & Co. KG' gets a high score, because the term 'SAP' exists in both texts. A record like 'SAPPHIRE NOW Orlando' gets a lower score, because 'SAP' is just a part of the longer term 'SAPPHIRE' (3 of 8 characters match)."
So for text columns the score calculation is much more complex than tf-idf.
As for the different fuzzy score, there is an explanation in the FAQ section ( Ch. 10.2.4.14, p736 "Is the score between request and result always stable for TEXT columns?")
Basically, for each token, its similarity score will be used to calculate the overall result only if it is higher than the threshold given in fuzzy(). Any token with a lesser similarity score will be excluded. Therefore, slight change in the threshold may influence the overall score greatly.
Here is an example.
I added id 7 "SAP ASAP" to the data you used.
Note that the similarity score between "ASAP" and "BSAP" is slightly over 0.74 and similarity score between "SAP" and "BSAP" is 0.75:
For
    select score() as sc, * from COMPANIES2 where contains(COMPANYNAME,'BSAP',fuzzy(0.74))
We get:
<...omitted...>
0.7474510073661804;    7;    SAP ASAP;        M. Master
Now change the threshold to 0.75 and the result is:
<...omitted...>
0.5588234663009644;    7;    SAP ASAP;        M. Master
ID 7 now gets a lower score because "ASAP" is excluded and only "SAP" is used to calculate the overall result.
As for tf-idf, it is used in the so-called freestyle search across multiple columns.
An example from the same guide:
     select score() as sc, * from companies2 where contains((companyname,contact), 'IBM Master', FUZZY(0.7));
Result:
0.8103122115135193;    6;    IBM Corp;    M. Master
Regards
Roger Tao

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BT Mobile - Problem with Erroneous Credit Score an...

I have been a BT Customer for 35 years and have always paid my bills on time. I have a monthly direct debit for my landline and Broadband and have just added BT Mobile to my account. I have to say that I should have paid more attention when setting up BT Mobile online as it did flag through the process that there would be a cap of £50 spend outside the monthly plan and that roaming would be turned off. On receipt of the confirmation email on 2nd April this limit to my account was restated and was put down to my credit score. I called BT on the 2nd and was told that this was not a problem and the limits could be changed once the service had started. The service commenced on 8th April and on entering MYBT I am able to increase the monthly cap to £100 (not that i want or need to). However, the real issue I have is that I cannot activate Mobile Roaming. My account is flagged (Sorry, but you can’t use your phone abroad at the moment. You need to be a BT Mobile customer for six months first and have paid all your bills on time).
I rang BT on 10th April to find out what the problem is and was told that it was my credit score and there was nothing that could be done to change what had been done. I was told that I would need to find out for myself what adverse information was held by Equifax who BT use. After paying £14.95 to Equifax for a full report and credit score I found that my credit score is 527 which is deemed to be excellent against the UK average score of 380, and there is absolutely no adverse information whatsoever which is of no surprise to me. So what on earth are BT looking at. I have tried in vein to get somebody in BT to check my file as there must be an error. I suspect that when I applied on line the process is automated and the system has made a mistake. Rather than investigate my case I am just being told nothing can be done to let me use my phone whilst abroad. After several hours on the phone to various people over a few days I have come up against a brick wall.
Is there anyway a moderator could help me please. If I had known that I would encounter this I would not have signed up for BT Mobile and Ported my number which I would be loathe to loose.

it may well be nothing to do with your credit score, but more to do with bt internals
ie: I purchased a new second hand car last year (December), my bank who i have been with for over 10 years, have a current loan with (that ends this year) and have had previous loan with, never been overdrawn, wages paid in each month and bills paid on time said I could not have a loan and if they did offer one it would be at a very high interest rate (i am still waiting to fine out from them why), even though I got a loan through another company at a very good deal, I upgraded my 3 accounts with EE from T-Mobile in December and January which all required a new credit check went through without issues (and they offered me another line on my contract on Sunday, saying that my credit rating is perfect) . My credit rating from experian when I checked (because of my bank) was Green and in Excellent condition.
The only thing I know was 11 years ago I got in financial debt (the bank purchased the debt from another company, but I paid everything off by scrimping and scraping for a number of years) - it may be that they are still using against me, but every other company has said they find nothing wrong with my rating, but what I have heard is that they reset ratings every month, so you may be fine to get something on the 1st of the month, but if applied on the 2nd they would refuse it.

[Forum FAQ] How do I add an average line to series group on SQL Server Reporting Services column chart?

Introduction
In SQL Server Reporting Service (SSRS), you may need an average value on column chart.
For the above chart, add an average score line to the chart, you can get which student’s score is larger than average score, and which student’s score is less than average score clearly. This document demonstrates how to add an average line to series groups
on SSRS column chart.
Solution
To achieve this requirement, you can add another values to the chart, change the chart type to line chart. Set the value to average value of the series group and set the line to show only once by using expression. Please refer to the link below to see the
detail steps.
Click the chart to display the Chart Data pane.
Add Score field to the Values area.
Right-click the new inserted Score1 and select Change Chart Type. And then change chart type to line chart in the Select Chart Type window.
Change the Category Group name to Subject. Here are the screenshot for you reference.
Right-click the new inserted Score1 and select Series Properties.
Click the expression button on the right of Value field textbox, type the expression below:
=Avg(Fields!Score.Value,"Subject"))
Click Visibility in the left pane, select “Show or hide based on an expression”, and type in the expression below:
=IIF(Fields!Name.Value="Rancy",FALSE,TRUE)
Name in the expression is one of the Students. Then only one line chart is be displayed by using this expression.
Click Legend in the left pane, type Average_Score to the Custom legend text box.
The report looks like below:
Applies to
Microsoft SQL Server 2005
Microsoft SQL Server 2008
Microsoft SQL Server 2008 R2
Microsoft SQL Server 2012
Please click to vote if the post helps you. This can be beneficial to other community members reading the thread.

Thanks,
Is this a supported scenario, or does it use unsupported features?
For example, can we call exec [ReportServer].dbo.AddEvent @EventType='TimedSubscription', @EventData='b64ce7ec-d598-45cd-bbc2-ea202e0c129d'
in a supported way?
Thanks! Josh

Best way to add a score to a score box and total it up.

I am creating a game for children to make good food choices
for breakfast, lunch, dinner, and snacks. I need to have the food
choice add a value to a score box when clicked onto the plate and
subtract the same amount when clicked off. So far, all I have been
able to do is get the score to appear in the upper left hand
corner. When I can get the pancakes working properly, I will be
adding other foods which will do the same thing with different
numbers. The total score cannot go over 100. I am attaching the .as
code, but it is separate from the .fla and I'm not sure if I can
upload the .fla here.

That worked! Now, I have another problem I can't seem to
figure out--when I add another food, berries, all it is doing is
moving the pancakes and not itself! Here is the revised coding:
package
//import any class being used by this package
import flash.display.MovieClip;
import flash.text.TextField;
import flash.text.TextFormat;
import flash.events.MouseEvent;
public class MealGame extends MovieClip
//altered version
var offPlate:Boolean; //variable for food off the plate
var gameScore:int = 0;
public function MealGame()
//Create a score field for the pancakes.
var gameScoreField:TextField = new TextField();
// set the position values
gameScoreField.x = 445;
gameScoreField.y = 530;
//Show the score field
addChild(gameScoreField);
var tf:TextFormat = new TextFormat();
var scoreBox:Object = getChildAt(numChildren-1);
//scoreBox.x = 445;
//scoreBox.y = 530;
//Create a new instance of the meal class.
var pancakes1:Pancakes = new Pancakes();
var berries1:Berries = new Berries();
//Display the food on this stage.
this.addChild(pancakes1);
this.addChild(berries1);
//Position the food item.
pancakes1.x = 11;
pancakes1.y = 42;
berries1.x = 211;
berries1.y = 396;
offPlate = true;
//make the food item a button
pancakes1.buttonMode = true;
pancakes1.addEventListener(MouseEvent.CLICK, onClick);
berries1.buttonMode = true;
berries1.addEventListener(MouseEvent.CLICK, onClick);
//toggle the food item to put on plate or off the plate
//toggle adding to the score or removing from the score
function onClick(event:MouseEvent):void
if(offPlate)
pancakes1.x = 119;
pancakes1.y = 380;
berries1.x = 515;
berries1.y = 55;
//add to score
gameScore = gameScore + 50;
gameScoreField.text = " " + String(gameScore);
tf.font = "Arial";
tf.bold = true;
tf.color = 0x000000;
tf.size = 32;
//Take this text formatting object; apply it to the
textfield
gameScoreField.setTextFormat(tf);
//toggle the offPlate value
offPlate = !offPlate;
else
pancakes1.x = 11;
pancakes1.y = 42;
//berries1.x = 211;
//berries1.y = 396;
//remove from score
gameScore = gameScore - 50;
gameScoreField.text = " " + String(gameScore);
tf.font = "Arial";
tf.bold = true;
tf.color = 0x000000;
tf.size = 32;
//tf.x = 426;
//Take this text formatting object; apply it to the
textfield
gameScoreField.setTextFormat(tf);
offPlate = !offPlate;
}

Average Score Function

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