Count of distinct Records

Heres my situation:
Table a has rows like this
Col1 Col2 Col3
1 1 feb-1999
1 1 feb-1999
2 1 feb-1999
2 1 feb-1999
3 2 mar-1999
4 4 mar-1999
What i need to return is a count of the distinct occurances of col1 and col2 grouped by month. So given thabove data my resulting set should be
Count Month
2 feb-1999
2 mar-1999
Thanks,
Allen...

I think it'd better adding a non-numeric character (e.g. space character) to separate the value strings of col1 and col2 . That is,
select count(distinct to_char(col1)| |' '| |to_char(col2)),
to_char(col3,'mon-yyyy')
from test1
group by to_char(col3,'mon-yyyy');
Cheers/RS
null

Similar Messages

How to get a count of unique records

How do you get a count of unique records? Looking only for one number, not a list..so if the data is:
ID
===
1234
1234
1234
1236
1236
1237
Then, the count total will be one field called 'ID' with the value '3' in it..
All I know how to do is get a count that will count all records, or do it in two queries. Looking to do this in one query statment..
Thanks..

Just a small clarification...
Concatenation could potentially give wrong result, depending on the data.
For example...
sudhakar@ORCL>ed
Wrote file afiedt.buf
1 with t1 as
2 (select 'AA' c1, '101' c2 from dual union
3 select 'AA1' c1, '01' c2 from dual union
4 select 'AA101' c1, null c2 from dual union
5 select 'BB2' c1, '345' c2 from dual union
6 select 'AA101' c1, null c2 from dual union
7 select 'BB2' c1, '345' c2 from dual union
8 select 'BB234' c1, '5' c2 from dual
9 )
10* select count(distinct c1 || c2) from t1
sudhakar@ORCL>/
2IMHO, the required answer will be...
sudhakar@ORCL>ed
Wrote file afiedt.buf
1 with t1 as
2 (select 'AA' c1, '101' c2 from dual union
3 select 'AA1' c1, '01' c2 from dual union
4 select 'AA101' c1, null c2 from dual union
5 select 'BB2' c1, '345' c2 from dual union
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7 select 'BB2' c1, '345' c2 from dual union
8 select 'BB234' c1, '5' c2 from dual
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10* select count(distinct c1 ||'.'|| c2) from t1
sudhakar@ORCL>/
5
sudhakar@ORCL>vr,
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How can I get the number of distinct records that each field of a DB table has?

Hi everyone,
I would like to know how to get he number of distinct records that each field of a DB table has. When tracing a SQL statement either in ST12 or ST05, in the plan execution, if the sentence made useage of an index, then I can click in the index name and see this kind of information (no. of distinct values for each field of that index).
Can I do something like this but with the whole fields of a table?
What I have found until now is in Tx ST10; I search for whatever kind of table statistics and then use the function of "Analyze table" (which takes me to Tx DB05). In here, I can enter a table and up to 5 fields in order to get the information that I want.
Is there any other way to do this?
Regards,
David Reza

Hi David,
You can export the same to excel and sort as per requirement.
Sorry is that what you are looking for ?
Regards,
Deepanshu Sharma

I want a count of distinct rows in a table

I want a count of distinct rows in a table through a single query -- is it possible?
eg.
table-
create table ch1 (a int, b int, c int, d int)
insert ch1 values (1,1,1,1)
insert ch1 values (2,2,2,2)
insert ch1 values (1,1,1,1)
insert ch1 values (2,2,2,2)
insert ch1 values (1,3,4,5)

hi,
create table ch1 (a int, b int, c int, d int) ;
insert into ch1 values (1,1,1,1);
insert into ch1 values (2,2,2,2);
insert into ch1 values (1,1,1,1);
insert into ch1 values (2,2,2,2);
insert into ch1 values (1,3,4,5);
SQL> select * from ch1;
         A          B          C          D
         1          1          1          1
         2          2          2          2
         1          1          1          1
         2          2          2          2
         1          3          4          5
SQL> select distinct * from ch1;
         A          B          C          D
         1          1          1          1
         1          3          4          5
         2          2          2          2
SQL>
1* select count(*) from( select distinct * from ch1)
SQL> /
COUNT(*)
         3
SQL> ed
Wrote file afiedt.buf
1   select count(*) from (select a,b,c,d from ch1
2* group by a,b,c,d)
SQL> /
COUNT(*)
         3
SQL> Thanks,
P Prakash

Count number of records in a internal table

hi
i want to count number of records in internal table
pls let me know how to count the number of records in a internal table.
regards
Arora

hi
one way is
data field type i.
Decribe table itab lines field.
write: / field.
displays the no of records in tha internal table
or if u want to write logic.
data:
w_count type i.
loop at itab.
w_count = w_count + 1.
endloop.
write: / w_count.
displays the no of records.
reward points if useful.

How to get the count of distinct customer in matrix?

Hi,
I want to get the count of distinct customer in matrix at the time of validation event.
Thanks Regards,

Hi,
Please close the thread.by marking the correct answer
regards,
Prasad

Select distinct records in Mapping with no Key field (all fields can vary)

Hi Experts,
Let me take an example (not the actual requirement but same scenario) to explain the problem where I need your help to get best possible way to resolve. This has to be achieved in mapping, don't have other options as its part of complex end 2 end scenario.
I have following input XML:
<Employee>
   <Details>
      <Id>123</Id>
      <Name>ABC</Name>
     <Role>Manager</Role>
      <Area>Bangalore</Area>
    </Details>
    <Details>
       <Id>123</Id>
       <Name>ABC</Name>
        <Role>Manager</Role>
         <Area>Pune</Area>
     </Details>
      <Details>
       <Id>123</Id>
       <Name>ABC</Name>
        <Role>Advisor</Role>
         <Area>Bangalore</Area>
     </Details>
      <Details>
       <Id>123</Id>
       <Name>ABC</Name>
        <Role>Manager</Role>
         <Area>Bangalore</Area>
       <Details>
       <Id>143</Id>
       <Name>ABC</Name>
        <Role>Manager</Role>
         <Area>Bangalore</Area>
     </Details>
</Employee>
The output XML is:
<Employee>
   <MainRec>
       <Id>123</Id>
        <Name>ABC</Name>
         <table name = 'Roles'>
               <record>
                      <Id>123</Id>
                       <Role>Manager</Role>
                        <Area>Bangalore</Area>
                  </record>
                  <record>
                      <Id>123</Id>
                       <Role>Manager</Role>
                        <Area>Pune</Area>
                  </record>
                  <record>
                      <Id>123</Id>
                       <Role>Advisor</Role>
                        <Area>Bangalore</Area>
                  </record>
              </table>
      </MainRec>
      <MainRec>
        <Id>123</Id>
        <Name>ABC</Name>
         <table name = 'Roles'>
               <record>
                      <Id>143</Id>
                       <Role>Manager</Role>
                        <Area>Bangalore</Area>
                  </record>
            </table>
        </MainRec>
</Employee>
As you can see from the example above, here I want to populate only distinct records under table, but there is no key fiield to ditunguish. Any of the 3 fields (Id, Role,Area) can vary and between 2 records if all of these fields are same then its duplicate else select it. So in above XML just discard the 4th record from the source XML and populate all others. Each record has to be checked against all other records all 3 values (ID, Role, Area). Only when none of the records have exactly the same values, populate it.
Also records with different ID come under different table node. Hope my requirement is clear, if not please let me know, i will try to explain better.
I thought of creating a UDF to achieve this but not able to decide how to match it to the output message here.
Best Regards,
Pratik

Hi,
For the main record, I think you only need to check for each unique ID, e.g
Id --> removeContext --> sort:ascending --> splitByValue:valueChanged --> collapseContext --> MainRec
For the record, however, you need to create a UDF that will filter out the duplicate values. For this, the UDF sample mentioned here contained multipleResult lists
Id --> removeContext --> concat: : --> concat: : --> UDF --> splitByValue:ValueChanged --> record
role --> removeContext --> /          /                \ --> Id
area --> removContext -------------> /                  \ --> role
                                                         \ --> area
Context type UDF
Arguments: input
Result: IdResult
Result: roleResult
Result: areaResult
Vector temp = new Vector();
for(int a=0;a<input.length;a++){
   if(!temp.contains(input[a])
         temp.add(input[a]);
for(int a=0;a<temp.size();a++){
   String tmp = (String) temp.get(a);
   /*split according to field */
   IdResult.addValue(tmp.substring(0,tmp.indexOf(":")));
   roleResult.addValue(tmp.substring(tmp.indexOf(":")+1,tmp.lastIndexOf(":")));
   areaResult.addValue(tmp.substring(tmp.lastIndexOf(":")+1,tmp.length()));
note: Id and record will both be using the IdResult list.
Hope this helps,
Mark

Count a distinct column value in an interactive report

Hi,
I'm struggling with this and would appreciate any pointers.
I have built a view here:
http://apex.oracle.com/pls/otn/f?p=11189:1
The report can have duplicate column values. I'm tying to find a way using the interactive report functionality (i.e. without modifying the underlying SQL) to count a distinct column value. For example, in the example following the link I'd like to be able to count the unique customer_ids and return 7.
This may be fundametally impossible depending on the way the SQL is generated for the interactive reports. If this is the case can anyone confirm this?
Many thanks
Yog.

<B>"Not modifying views is fair enough. But not wrapping a SELECT around them? Really? Why? And as I said, that's imposible, the IR already does it."</B>
This is not a problem. However for the IR's it's a development decision to keep all reported columns ( and analysis on these columns ) as a seperate development process to be controlled centrally by a seperate team. The point to remember is that the app looks at hundereds of views and it was decided that modifying each report to fit each instance would become cumbersome to manage and to put it simply there are not the resources to do it.
again, I'm not here to justify any of that!
<B>SELECT *" ? Every single time? Even when you want to populate a LOV with some names</B>
No just the Reports. It is a very very simple app; a big list an a page for each report.
<B>"I think you should always ask what you want, not less, not more"</B>
I agree, and that should include select * from view.
<B>"Why fetch data you don't want to see"</B>
Some users will want to see some data from the view and other users will want to see other data, Over the whole user base someone somewhere will want to see all of it.
<B> Actually, there is something good in this, in the future, when you will be asked to check and try to improve the load time of some page, here is the first place where you should look</B>
Brilliant! Like it!!
<B>Does it by any chance fetch a bunch of 20 meg LOBS and then discards them</B>
No, Thankfully a few varchar2 columns and a lot of numeric columns, nothing huge. The reports are acutally pretty fast at the moment...

Need Count of Displayed records after suprresion

Hi All,
My question is looks very simple but it made me very tough to get it. pls help me if you have any clue.
I have a report having 20 detail records from Database.
I used some condition at Section expert to suppress some data, after that I have only 10 records as report out put.
Now, at the report footer I need the count of the records.So, when I use count function its showing 20 instead of 10.
How to get the count of available records after suppressing.
Thank you,
Krishna Pingali

Hi Krishna!
I would try using a conditional Running Total formula to add each record that does not fit the suppression criteria, and then a display formula to display the final total.
Ex -
@Non-Suppressed Count Calc
WhilePrintingRecords;
NumberVar NSC;
If <> <suppression criteria> Then NSC := NSC + 1
Else NSC := NSC
@Non-Suppressed Count Display
WhilePrintingRecords;
NumberVar NSC;
NSC
Place the first formula in your Details Section and the Second in the appropriate Footer Section.
Hope that helps!

Counting number of records in a data block

hi folks,
Simple question for you guys: How can I count number of records in a data block.
In other words, say I have 10 detail records listed on a data block (one of my columns is a non-database item for entering a number). Now I just want to do somethin like:
Select count(*) From <data_block> into lnRecCount
Where <non-database column> <> 0 ;
Can I do this in a button trigger? I can't get it to work?
Thanks,
bob

You should make a routine that go through records of the block and count the records that agree with your condition.

To count number of records in an internal table for a condition

Hello All,
I want to count number of records in an internal table for a condition.
For e.g. -- I have one internal table IT which having fields F1, F2, F3, F4, F5.
Now, I want number of records in itnternal table IT where F1 = 'ABC'.
Is it possible to do..?? If yes, then how.??
Thanks in advance...!!
Regards,
Poonam.

Hi,
If you mean an internal table, there are a few ways to do this.
1 One would be to loop over the table with a WHERE clause and increment a counter.
data: lv_counter type i.
clear lv_counter.
loop at itab where fld1 = 'ABC'.
lv_counter = lv_counter + 1.
endloop.
lv_counter now has the number of rows per the condiction.
2 Well, you may want to try this as well, and compare to the LOOP way. Not sure what kind of overhead you may get doing this way. Here ITAB is our main internal table, and ITAB_TMP is a copy of it. Again I think there may be some overhead in doing the copy. Next, delete out all records which are the reverse of your condition. Then whatever is left is the rows that you want to count. Then simply do a LINES operator on the internal table, passing the number of lines to LV_COUNT.
data: itab type table of ttab.
data: itab_tmp type table of ttab.
itab_tmp[] = itab[].
delete table itab_tmp where fld1 'ABC'.
lv_count = lines( itab_tmp ).
Thanks & Regards,
ShreeMohan

Running Total Issue: How to calculate counts excluding suppressed records

Post Author: benny
CA Forum: Formula
Hello All:
I have a current report that gives the total counts of work requests. However, in my section expert, there are some records in the detail that are suppressed (if there isn't any backlog). The current running totals are counting all the records including the suppressed records. I think I need three formulas:1. Calculate the counts2. Calculate the counts excluding suppressed records3. Reseting the counts by group
May I ask if someone can give me an example of what I should do?
Thanks so much!
Benny

Post Author: benny
CA Forum: Formula
Bettername,
Actually, I should have been more specific. This report is actually a PM backlog report. It displays all the work requests (PM) issued including the backlogged. There are 9 columns (including one called Backlog) for the different counts of the pm's based from the status codes (Issued, Material on Order, Completed, Cancelled, etc) of the work requests. The detail records of worke requests are grouped by shop and PM end date. The running totals are calculated at the pm date group level (group footer#2). Then based from those at the shop group level (group footer#1) there is a grand total of counts of the running totals. The detail records and pm end date group header (group header #2) are suppressed.
Now the foremen would like the report to just display all the backlogged PMs. Using the section expert, I suppressed all the PM issued that have no back log ({@ backlog = 0}) and just display the back logged pm's. This is where I run into the running total issue.
This is very involved report and I will use the column PM Issued as an example. I can still use the same logic as you suggested?
1. declaration formula:
whileprintingrecords;numbervar pmissued := 0;
2. Suppression formula that uses the variable:
whileprintingrecords;
numbervar pmissued;
if ({@ backlog = 0}) then pmissued:= pmissed else pmissued:=pmissuedr+1
3. Display formula:whileprintingrecords;
numbervar pmissued;
If this is the right track, then I can use the same example for the other columns.
Thanks so much.
Benny

Query in SQL to display count of all records but where condition is present

Hi All,
I have situation where I need to display count of all records all particular period but in where condition type condition has to be present :
Please find the below sample data :
PERIOD_ID     TYPE     MV_COUNT     IS_FLAG
20110401     AM     1     0
20110401     AM     1     0
20110401     MS     29     0
20110501     MS     1     0
20110601     MS     14     0
20110701     MS     2     0
20110401     MS     1     0
20110401     AM     2     0
20110401     AM     69     0
20110401     AM     2     0
finally I need for type = MS
i) total is_flag count for all the periods
ii) for period=20110501 what is the mv_count
I need to use the table single time (ie not self join outer joins )
I have tried to use partition by clause but it will filter out the data .
Cheers,
Sp

842106 wrote:
finally I need for type = MS
i) total is_flag count for all the periods
ii) for period=20110501 what is the mv_count
I need to use the table single time (ie not self join outer joins )
I have tried to use partition by clause but it will filter out the data .
select sum(is_flag) is_flg_count,
         sum
             case when period = 20110501 then mv_count else 0 end
            ) mv_cnt_for_20110501
from your_table
where type = 'MS';

How to get count of all records of all entities in CRM Online

Hi,
I want to get count of all records entitywise in dynamics CRM 2013 online. I know we can count the records in CRM on-premise using a SQL query in report. Earlier I wrote a SSRS report to count the records in a CRM entity wise as displayed in
the screenshot below..
Can someone suggest me a good approach to implement the same in CRM Online.
Thanks
Pratibha Singh

Hello,
In a CRM Online environment, you need to create reports based on Fetch XML. Take a look at this link to create a Fetch XML query with aggregates: https://msdn.microsoft.com/en-us/library/gg309565.aspx?f=255&MSPPError=-2147217396#count .
Here is an example to create a report in an online environment: http://edwardsdna.com/2012/12/03/crmonline-report/
Hope it helps,
Kind regards

How to distinct records?

hi,
i need to distinct records in my query but i don't know how to do that.
i use SQLX functions. this is my query:
select xmlelement ("narqdi",
xmlelement ("order",
(select xmlagg (
xmlconcat (
xmlelement ("nom_order", nor.nom_order),
xmlelement ("nch", nor.chnom1),
xmlelement ("partida",
(select xmlagg (
xmlconcat (
xmlelement ("npartida", nor2.npartida),
xmlelement ("ppnom",
(select xmlagg (xmlelement ("pnom", nor3.pnom))
from narqd_order nor3
where nor3.nom_order = nor2.nom_order
and nor3.npartida = nor2.npartida
from narqd_order nor2
where nor2.nom_order = nor.nom_order
from narqd_order nor
where nor.NOM_ORDER = '5970'
from dual
i have 18 records in table for record nom_order = '5970' and i receive 18 tags <partida> and 18 tags for each ppnom :(
please help me.
i tried to put distinct in every select but this is no reason.
i tried to put agregate function in each select statement but in select for <pnom> it does not work...
best regards
Message was edited by:
Fitibaldi
Message was edited by:
Fitibaldi

Arti,
Here's another solution (that will still use locking, and can help avoid the "lost update" problem):
http://stegemanoracle.blogspot.com/2006/03/using-updatable-views-with-adf.html
John

Count of distinct Records

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