Count the occurrences of the maximum values

Hello

I don't know if I simply not thinking clearly this morning or not, but I find it difficult to write a query which I believe should be simple enough. I'm trying to find the number of occurrences of a maximum value for each value in a range.

Here's the situation:

I have a table that stores the scores on the Act and SAT tests for students, as well as their student number identification codes and test. The table can store notes reviews multiple with same code test (in this case A01) for each student, the student can take the Act or SAT several times.

In my case, I need to know the number of students who earned a maximum test between 14 and 25 grouped by test score. So if I had 500 students, and 300 of them took the test ACT, then my output can resemble:

REVIEW NOTE number of STUDENTS

14 12

15 18

16 45

17 55

18 100

19 35

20 15

21 10

22 5

23 3

24 1

25 1

Although there may be 400 scores in tests with the test code (A01), I'm only willing to count the maximum score that the student has received.

Fields:

ID: sortest_pidm

Test code: sortest_tesc_code

Test score: sortest_test_score

I'm going to use this as part of a larger query to track the retention of students with different ACT and SAT scores.

Thanks for any help you can provide. If anything is unclear, please feel free to ask for clarification.

Bob

It should work. Just check the table and column names.

SELECT max_sortest_test_score, COUNT (*)

FROM (SELECT sortest_pidm, MAX (sortest_test_score) max_sortest_test_score

OF test_scores

WHERE sortest_tesc_code = "A01".

GROUP BY sortest_pidm)

GROUP BY max_sortest_test_score

ORDER BY 1;

Tags: Database

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Harinath Arasu says:
Hi all

I'm using Oracle 11 g 2. I need to know the maximum value in a collection of items.

When I run the following, I get the maximum number of collection as '5' but I need the max value itself which is 8, please help.

DECLARE
type v_number1 is table of number of directory indexes;

v_number v_number1;

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It should be-online 1... v_src_file_string_array. COUNTY

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INSERT INTO loan_schedule
VALUES
('01017150053271  ',2,5422.86)
/
INSERT INTO loan_schedule
VALUES
('01017150053293  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01017150053293  ',2,4406.25)
/
INSERT INTO loan_schedule
VALUES
('01017180003081  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01017180003081  ',2,49664.37)
/
INSERT INTO loan_schedule
VALUES
('01017210000955  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01017210000955  ',2,126967.14)
/
INSERT INTO loan_schedule
VALUES
('01027150051360  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01027150051360  ',2,5980.03)
/
INSERT INTO loan_schedule
VALUES
('01027160050103  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01027160050103  ',2,3615.24)
/
INSERT INTO loan_schedule
VALUES
('01047150052651  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01047150052651  ',2,8125.9)
/
INSERT INTO loan_schedule
VALUES
('01047150052673  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01047150052673  ',2,4406.25)
/
INSERT INTO loan_schedule
VALUES
('01057150051287  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01057150051287  ',2,20752.45)
/
INSERT INTO loan_schedule
VALUES
('01057150051307  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01057150051307  ',2,10376.23)
/
INSERT INTO loan_schedule
VALUES
('01057150051329  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01057150051329  ',2,11960.05)
/
INSERT INTO loan_schedule
VALUES
('01067010001654  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01067010001654  ',2,6855.16)
/
INSERT INTO loan_schedule
VALUES
('01067150002665  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01067150002665  ',2,12970.28)
/
INSERT INTO loan_schedule
VALUES
('01067150052759  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01067150052759  ',2,4406.25)
/
INSERT INTO loan_schedule
VALUES
('01067150052782  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01067150052782  ',2,7618.03)
/
INSERT INTO loan_schedule
VALUES
('01067150052802  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01067150052802  ',2,5422.86)
/
INSERT INTO loan_schedule
VALUES
('01077080050026  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01077080050026  ',2,2485.26)
/
INSERT INTO loan_schedule
VALUES
('01077150050910  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01077150050910  ',2,3615.24)
/
INSERT INTO loan_schedule
VALUES
('01077150050921  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01077150050921  ',2,6348.36)
/
INSERT INTO loan_schedule
VALUES
('01077300050011  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01077300050011  ',2,23289.97)
/
INSERT INTO loan_schedule
VALUES
('01107010000277  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01107010000277  ',2,4550.62)
/
INSERT INTO loan_schedule
VALUES
('01107010000288  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01107010000288  ',2,7215.96)
/
INSERT INTO loan_schedule
VALUES
('01107150050610  ',1,5188.12)
/
INSERT INTO loan_schedule
VALUES
('01117110050060  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01117110050060  ',2,23528.29)
/
INSERT INTO loan_schedule
VALUES
('01117110050071  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01117110050071  ',2,16469.8)
/
INSERT INTO loan_schedule
VALUES
('01117150051071  ',1,7782.17)
/
INSERT INTO loan_schedule
VALUES
('01117180000631  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01117180000631  ',2,49664.37)
/
INSERT INTO loan_schedule
VALUES
('01137110050082  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01137110050082  ',2,47056.57)
/
INSERT INTO loan_schedule
VALUES
('01147150052362  ',1,5875)
/
INSERT INTO loan_schedule
VALUES
('01147150052384  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01147150052384  ',2,10376.23)
/
INSERT INTO loan_schedule
VALUES
('01157010001078  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01157010001078  ',2,10764.62)
/
INSERT INTO loan_schedule
VALUES
('01157150051316  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01157150051316  ',2,12970.28)
/
INSERT INTO loan_schedule
VALUES
('01157150051338  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01157150051338  ',2,8812.5)
/
INSERT INTO loan_schedule
VALUES
('01167150051647  ',1,2711.43)
/
INSERT INTO loan_schedule
VALUES
('01507150051043  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01507150051043  ',2,18158.39)
/
INSERT INTO loan_schedule
VALUES
('01957180000928  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('01957180000928  ',2,14561.49)
/
INSERT INTO loan_schedule
VALUES
('02007180001216  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('02007180001216  ',2,36039.68)
/
INSERT INTO loan_schedule
VALUES
('03017180001733  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('03017180001733  ',2,25083.02)
/
INSERT INTO loan_schedule
VALUES
('03317290050021  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('03317290050021  ',2,9833.81)
/
INSERT INTO loan_schedule
VALUES
('03317290050040  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('03317290050040  ',2,7375.36)
/
INSERT INTO loan_schedule
VALUES
('09997040001950  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('09997040001950  ',2,13864.94)
/
INSERT INTO loan_schedule
VALUES
('09997120004685  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('09997120004685  ',2,3495.59)
/
INSERT INTO loan_schedule
VALUES
('09997120004696  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('09997120004696  ',2,4339.15)
/
INSERT INTO loan_schedule
VALUES
('09997220000893  ',1,0)
/
INSERT INTO loan_schedule
VALUES
('09997220000893  ',2,3429.21)
/

Kind regards

Yamen

Hello

When there is a WHERE clause, it always comes after the FROM clause. (Joints and their conditions are part of the FROM clause).
Try this:

WITH     got_rnum    AS
(
     SELECT     cod_acct_no
     ,     amt_instal
     ,     ROW_NUMBER () OVER ( PARTITION BY  cod_acct_no
                               ORDER BY          ctr_stage_no       DESC
                       ) AS rnum
     FROM    loan_schedule
)
SELECT     m.cod_acct_no, m.amt_disbursed, m.bal_book
,     r.amt_instal             AS high_amt_instal
FROM     loan_mast     m
JOIN     got_rnum     r     ON     r.cod_acct_no     = m.cod_acct_no
                    AND     r.rnum          = 1
WHERE   m.cod_acct_stat = '8' ----------[this is condition is newly added to apply the same in production to fetch desired record]
;

get the value of the maximum value of a column for a particular type

Hello.
I have a query which returns the output something like

Type of VersionNo ID ProductID VersionID category unusual
1130 16650 16650 1193 5 Category1
1130 16650 16650 1205 5 Category2
1130 16650 16650 1242 5 category3
1130 16650 1130 1001 1 Category1
1130 16650 1130 1081 1 category3
1131 16656 16656 1193 4 Category1
1131 16656 16656 1205 4 Category2
1131 16656 16656 1240 4 category3
1131 16656 1131 1001 1 Category1
1131 16656 1131 1081 1 category3

I want to see the result that all the VersionId for the same ID values should have the same value for the category and it should be the value that is there for the maximum versionNo for a particular Type of «» Something like

Type of VersionNo ID ProductID VersionID category unusual
1130 16650 16650 1193 5 Category1
1130 16650 16650 1205 5 Category2
1130 16650 16650 1242 5 category3
1130 16650 1130 1193 1 Category1
1130 16650 16650 1205 1 Category2
1130 16650 1130 1242 1 category3
1131 16656 16656 1193 4 Category1
1131 16656 16656 1205 4 Category2
1131 16656 16656 1240 4 category3
1131 16656 1131 1193 1 Category1
1131 16656 16656 1205 1 Category2
1131 16656 1131 1240 1 category3

Does anyone know how to do this?

Ok
Try:

WITH test_data AS (
SELECT 1130 RecID, 16650 ProductID,  16650 VersionID, 1193  Category,  5 VersionNo, 'Category1' Type FROM DUAL UNION ALL
SELECT 1130, 16650, 16650, 1205, 5, 'Category2' FROM DUAL UNION ALL
SELECT 1130, 16650, 16650, 1242, 5, 'Category3' FROM DUAL UNION ALL
SELECT 1130, 16650, 1130, 1193, 1, 'Category1' FROM DUAL UNION ALL
SELECT 1130, 16650, 1130, 1205, 1, 'Category2' FROM DUAL UNION ALL
SELECT 1130, 16650, 1130, 1242, 1, 'Category3' FROM DUAL),
-- end test data
max_data AS (
SELECT RecID, ProductID, VersionID, Category, VersionNO, Type
  FROM test_data td1
 WHERE VersionNo = (
  SELECT MAX(VersionNo)
    FROM test_data td2
  WHERE td1.RecID = td2.RecID
     AND td1.ProductId = td2.ProductID))
SELECT RecID, ProductID, VersionID, Category, VersionNO, Type
  FROM max_data
  UNION
SELECT md1.RecID, md1.ProductID, td1.VersionID, md1.Category, td1.VersionNO, md1.Type
  FROM max_data md1
  JOIN test_data td1
 ON (md1.RecID = td1.RecID AND md1.ProductID = td1.ProductID)
ORDER BY 1,2,3,5, 6

     RECID  PRODUCTID  VERSIONID   CATEGORY  VERSIONNO TYPE
---------- ---------- ---------- ---------- ---------- ---------
      1130      16650       1130       1193          1 Category1
      1130      16650       1130       1205          1 Category2
      1130      16650       1130       1242          1 Category3
      1130      16650      16650       1193          5 Category1
      1130      16650      16650       1205          5 Category2
      1130      16650      16650       1242          5 Category3

And you simply:

WITH max_data AS (
SELECT RecID, ProductID, VersionID, Category, VersionNO, Type
  FROM test_data td1
 WHERE VersionNo = (
  SELECT MAX(VersionNo)
    FROM test_data td2
  WHERE td1.RecID = td2.RecID
     AND td1.ProductId = td2.ProductID))
SELECT RecID, ProductID, VersionID, Category, VersionNO, Type
  FROM max_data
  UNION
SELECT md1.RecID, md1.ProductID, td1.VersionID, md1.Category, td1.VersionNO, md1.Type
  FROM max_data md1
  JOIN test_data td1
 ON (md1.RecID = td1.RecID AND md1.ProductID = td1.ProductID)
ORDER BY 1,2,3,5, 6

What is the maximum value supported SD card speed, class

Hello

I would like to know what the maximum taken in charge SD card support is class for a slot for SD cRIO-9031.

I need to enter a SDHC card to be purchased for use in this system. I need "Industrial" SD cards and the speed indication changes the price considerably. (Class 4 vs. Class10 UHS-1 the two 8 GB, the latter is 4 x times the price of the first appr.) EUR200)

Please provide me with the material specifications of the cRIO-9031 SD card slot (manual specification of '376261-02' States: ' removable SD (user-provided) up to 32 GB ")

Hi André,.

CompactRIO-9031 supports the SD write speed of up to 10 MB/s and supports the standard SDHC cards. As a result, SDHC Class 10 cards speed must be supported. Please see page 4 of the manual from the link below:

http://www.NI.com/PDF/manuals/376261a_02.PDF

However, there are many factors that can influence the observed flow rate as the compressibility of the data, write speed loop, write size etc. Please be aware of these factors when programming.

Thank you

Tom

NIUK

count the pixel values in an array

Hello

I converted my image into a 2D array, then I use the array subset function to return the subarray of my columns in 1023.

Now I want Rich Textlike to analyze my image vertically in a column to add the pixel values in each column and return the result for each column. So I would like to extract the indexof the minimum value, which is what I'm looking for.

I have an idea please let me know.

enclosed please find my vi

Thank you

Looks like you are doing things the hard way. Instead, I suggest using IMAQ LinearAverages rather at the entrance of the rectangle in option. This will give you the average of each column, which is just the total divided by the number of pixels. You can then use the Min search the index of the smallest value table.

Bruce

Count the occurrences of the maximum values

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