SQL & PL/SQL :: Get Count On Group And Total Count For Each Group
Mar 23, 2013
I'm using this code, and it performs fine, but I'm wondering if there is a more elegant way to do it--maybe with "ROLLBACK". Basically (as you can see) I need to get a normal count for each group but also for each group take a percentage of the total count (so all groups pct adds up to 100 (oh yeah, don't test for zero below, but just a test... )
select
c.Event,
c.code,
count(1) as calls,
total.total_count,
count(1) / total.total_count * 100 as pct_of_total
from
table1 c
[Code]....
[Edit MC: add code tags, do it yourself next time]
I'm trying to group sets of data based on time separations between records and then count how many records are in each group.
In the example below, I want to return the count for each group of data, so Group 1=5, Group 2=5 and Group 3=5
SELECT AREA_ID AS "AREA ID", LOC_ID AS "LOCATION ID", TEST_DATE AS "DATE", TEST_TIME AS "TIME" FROM MON_TEST_MASTER WHERE AREA_ID =89 AND LOC_ID ='3015' AND TEST_DATE ='10/19/1994';
[code]....
Group 1 = 8:00:22 to 8:41:22
Group 2 = 11:35:47 to 11:35:47
Group 3 = 15:13:46 to 15:13:46
Keep in mind the times will always change, and sometime go over the one hour mark, but no group will have more then a one hour separation between records.
SNO column should be incremented depending upon the total records to be fetched.if i get 4 records then sno numbers should be 1,2,3,4.i dont want to put rownum also in the GROUP BY clause.how to increment the serial number?
SELECT JC.A, ROWNUM SNO, --serial number JC.B, SUM(CHR.AMOUNT), SUM(CHR.FINALAMOUNT), JC.C, JC.D, C.E, JC.F, JC.G FROM CHARGES CHR WHERE JC.B = '12111' AND JC.STATUS = 'INVOICED' GROUP BY JC.A, JC.B, JC.C, JC.D, JC.E, JC.F, JC.G;
But I cannot get the count I have to do a separate Query to get the count here it is How can I put the two together to get my count information and Report information together in one Report???
Select Count(pm.description), mv.R1_State FROM windsoradm.member_mv mv
I am trying to count the number of IDs dropped and enrolled in each unit for each of the 4 terms between their perspective dates. There are 4 Terms and an ID can participate in a unit in any of these terms:
I am trying to count how many IDs enrolled in a unit between those dates and how many doped before the end dateThe ENROL_DATE for each ID in a unit has to be between the given Term Dates to count. Unit KIS has 1 ENROL and one DROP in TERM 1 UNIT POL occurs in TERM 2 and 4 and both DROPUNIT LIN and 1 ENROL and 1 DROP in 2 different TERMS My problem is how do i specify count ENROL and count drop between the Term dates and then group by TERM and UNIT.
I want to list every patients number and name, and the number of treatments given by a certain doctor (e.g doctor name = 'smith'). the problem i am having is that if i specify the doctor is WHERE clause it only gives me the doctors who are under 'smith' but i want all even if 'smith' has given them 0 treatments. below is code that i have so far to view all patients with corresponding data.
select pa.patno, pa.lname, tr.treatno from patient pa full join treatment tr on tr.patno=pa.patno;
and i want display the product that sells best in every store. I try to group by multiple columns counting how many times each product was sold in every store, but don't know how to select the one which was best sold (maximal number of times)
We have a table with timestamp column and having millions of records.We want to create a materialized view or query, which can give count based
-on some group by columns from table and -group by on condition (if count > 1000) and -group by on condition (if timestamp range for that group is > 1hr)
Department EmpName ____________________________________ Sales empname1 Sales empname2 Marketing empname3 Development empname4
Now I want to count the number of employees in every department. I want the output to be
Department Total ______________________ Sales 2 Marketing 1 Development 1
I am retrieving names of the department through a subquery
The query I am trying to execute is:
SELECT Department, Employee FROM ( SELECT ...query from other table) AS Department, count( A.EmpName) AS Employee FROM Employer A, EmployeeInfo B WHERE (A.EmpID = B.EmpID AND A.EmpCategory like 'Category2') GROUP BY Department
I know that you cannot group by using aliases and hence a little work around, but still the query isn't working.
I am writing a report that breaks on the first 4 fields. That part is working fine. I also want a count for each Group (the 4 fields), and a grand total. Since I want to break on all 4 fields as if they are one combined field, I made a concatenated column (called Break_key) and had the report total on that.
I was surprised when the count appeared at the top of each group, rather than at the bottom. The grand total is at the very bottom of the report, as I would have thought. How can I get the sub-totals at the bottom, rather than the top?
I would like to give back to the our application user a page of results for a given query along with the total result count, something like: "Showing 1-25 of 650 total results".
Currently I am doing this by submitting a second query:
select count(*) from (<previous query criteria>)
Is there a better performing approach I could be using?
I need to modify my query so that it can give me a total(duration) and total(stlmntcharge) per day in april 2013 starting from the 1st till the 30th. At the moment my query looks like below:
SELECT sum(duration),sum(stlmntcharge) FROM voipcdr WHERE (calldate >= TO_DATE('20130401','YYYYMMDD') AND calldate <= TO_DATE('20130430','YYMMDD')) AND (remtrunkid IN (SELECT UNIQUE trunkid FROM trunks WHERE description LIKE '%Telkom%' AND gw_range_id = '61' AND trunkid like '9%'))
or remip in(SELECT UNIQUE startip FROM gateways WHERE rangename LIKE 'vo-za%' OR rangename LIKE 'PC-IS-VOIS%')
We have a front end that is polling the database for some set of data.That set of data is returned by opening a ref cursor and passing it back to the calling environment.Now the problem they also want the count of total number of records that will be fetched by my select statement.One option is execute the select statement once ,get the count and pass it.But in that case i will be executuing the query twice once for count other time while openimng for the ref cursor .
the Q1 and Q2 could have values 1,2,3,4,5 thats means total are 5 questions. i need to know the total users who select value from q1 group by the values from 1..5 the toal_users who select value from q2 values( a group).i need the following result
I read that rownum is applied after the selection is made and before "order by". So, in order to get the sum of salaries for all employees in all departments with a row number starting from 1, i wrote :
select ROWNUM,department_id,sum(salary) from employees group by department_id
If i remove rownum, it gives the correct output. Why can't rownum be used here ?
difference between count(1) and count(*). As i know count(*) will give number of rows irrespective of null and count(1) will not count the null.My Oracle version is 10 g.
SQL> select * from t1;
A B C ---------- -------------------- -------------------- 1 2 3 2 5
SQL> select rownum,a.* from t1 a;
ROWNUM A B C ---------- ---------- -------------------- -------------------- 1 1 2 3 2 2 3 5 4 [code]....
I need to update the TEMP_GP_SEQ table and on the COLUMN COL7 based on the grouping range mentioned above using the sequence created. But the sequence should not be incremented for each and every record, it should be incremented only for change of groups. For example
Actually the group by fetched two rows with a total record count of 4 (2 records in both the rows). SO the COL7 is updated for these four rows with M as a prefixed word and the number followed after M is from the sequence. Here the number is changing (sequence is incrementing) only when there is a change in grouping criteria and it remains the same throughout a group.
how to logically connect two tables. Here is an example of what I'm trying to do:
HOSTS TABLE CPU TABLE ----------- --------- ID HOST ID CPU 01 host1 01 proc01 02 host2 01 proc02 03 host3 02 proc01 02 proc02 02 proc03 02 proc04 03 proc01
Based on the above, I can see that 'host1' has 2 CPUs, 'host2' has 4 CPUs, and 'host3' has 1 CPU. What I'd like to do is create a query that would output:
HOST CPU ---------- host1 2 host2 4 host3 1
I'm looping through the hosts and passing the them into another query as bind variables. That's slow and cannot be the best way to do this. I'm aware that I need to using a GROUP BY HAVING COUNT, but that doesn't seem to be working. It tends to return the total count of all CPUs rather than CPUs per host.
