Transact SQL :: When To Use Count And Sum

Jun 20, 2013

How do you know when you should use COUNT and when to use SUM functions?

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Transact SQL :: Want To Get A SUM Of COUNT

Jun 29, 2015

I have the following query and want the results within my query although I want to be able to get the SUM of my COUNT results. So basically I want the SUM of [Document Count] within my query/

DECLARE @Date date;
SET @date = '02/05/2015'
SELECT CONVERT(VARCHAR,CONVERT(Date, @Date, 103),101) AS [Date Scanned], (SELECT COUNT(*) FROM QUEUE WHERE date_scanned = @Date) AS [Total Scanned],
COUNT(dbc_state) AS [Document Count],
CASE
WHEN dbc_state = 1 AND ON_HOLD = '1' THEN 'On Hold'

[code]....

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Transact SQL :: Count As Per Column Value

Jul 2, 2015

I have table like below

col1 volume
A 22
B 28
C 1
E 3
D 4

Output should be like below

col1 vol
A 22
B 28
Others 8

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Transact SQL :: Way To Count Changes In Value Of A Field

Oct 13, 2015

I want to avoid iterating through a table row by row and programmatically incrementing a counter,/I have define a view called Q2 with the following fields of interest:

Trial varchar(25)
BI int
Track int
CAT int

What I would like to do is partition by Trial, BI, and Track, and count the number of times CAT changes value. In Access, I would just iterate through a recordset inside a function, but I would like to see if there is a set based solution.Adding Sample Data and Output.

Trial     BI     Track     CAT
A         5      3           1
B         5      3           2

[code]...

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Transact SQL :: COUNT And SUM Of Multiple Columns

Sep 2, 2015

I'm working on a data analysis involving a table with a large number of records (close to 2 million). I'm using only three of the columns in the table and basically am grouping results based on different criteria. The three columns are PWSID, Installation and AccountType. I have to Provide the PWSID column with a count of the total number of installations per PWSID, also a count of AccountTypes per PWSID. I have the following query, but the numbers aren't adding up and I'm not sure why. I'm falling short in the total count by around 60k records.

CREATE TABLE [dbo].[CATASTRO_PSWID_SHPMUNINEW](
[Installation] [numeric](38, 8) NULL,
[AccountType] [nvarchar](50) NULL,
[PWSID] [smallint] NULL,
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]

[code]....

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Transact SQL :: Query To Retrieve Max Count

May 28, 2015

The below is my query in SQL SERVER 2012

DECLARE
@PN_INC INT,
@POSITION_DESC VARCHAR(15)
SELECT @PN_INC= MAX(PositionNumberInc) FROM dbo.tblPosition WHERE LTRIM(RTRIM(UPPER(PositionDescription)))=LTRIM(RTRIM(UPPER(@POSITION_DESC)));
SELECT @PN_INC is returning null when there is no record in the table;

1. how can I make it return 0 when @PN_INC is null else it should pick the MAX(PositionNumberInc) value

2. I have written the below query to return 0 when @PN_INC is null  but I need query to select the MAX(PositionNumberInc) value when @PN_INC is not null 

SELECT @PN_INC= coalesce(MAX(PositionNumberInc), 0) FROM dbo.tblPosition WHERE LTRIM(RTRIM(UPPER(PositionDescription)))=LTRIM(RTRIM(UPPER(@POSITION_DESC)));

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Transact SQL :: Count Only Latest Entry

May 25, 2015

I have a table with below structure, with a sample entry for 1 country:

ID Date              Event CountryCode TxnID
1   22/05/2015   ABC   123   111
2   23/05/2015   XYZ   123   111
3   20/05/2015   XYZ   123   222
4   21/05/2015   ABC   123   222

So, I need to get a count like:

FOR COUNTRYCODE=123
ABC count= 1 
XYZ count= 1

Which means, I want to count for each transaction, the latest entry based on date. And there can be many countries like this. And I need to count both entries for ABC & XYZ.Normal count will give me duplicate entries.

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Transact SQL :: Display 0 With COUNT And GROUP BY

Aug 25, 2015

How can I display 0 when using COUNT and GROUP BY?I'm using SELECT CASE in my query. I was trying to use COALESCE but no result, COUNT result = 1. (there should be 0).

COALESCE((COUNT(DISTINCT (CAST((CASE
WHEN CurrStat = @Stat AND LogDate = @LogDate THEN Enumber ELSE 0 END) AS int)))), 0) AS InTrack,

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Transact SQL :: How To Get Count From A Large Table

Jun 1, 2015

I have a table with a couple hundred billion records (sql server 2005). When I do a select count(*) from tblx -- it takes this side of forever. Is it possible to count partitions and then add them up to make it faster?  

How I could improve the performance for count(*) of this huge table.  Note:  if the partition idea sounds viable -- what would that look like? 

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Transact SQL :: Count Weeks With More Than Two Records

Aug 22, 2015

My table is test and I have an ID and DateTest columns

I would like to count the weeks with more then one record.

So far I got this and return the weeks with 1 record per week. How can I count the weeks with more then one record

select sum(c)
from (
select c = count( id) over (partition by id, datepart(week, DateTest))
from test where id = '1' and DateTest >= '7-7-2015'
) a where c = 1

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Transact SQL :: How To Write A Cursor For Row Count

May 20, 2015

I have a table which table has :Identity Column (Identity), Schema name and Table_Name.

So I would like to write a cursor For each Table Count(*) from Table--@Cnt Int , Schemaname and Tablename need to store another table.

 Implement a USP, using a cursor that scan the  table, generate select count statement from configuration table  and fire the select count statement and record the result of the query in the log table :

how can I write a cursor and Import Those results into to Another table.

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Transact SQL :: Simple Count Function

Apr 25, 2015

I have a really basic question. The following SQL query works for me:

Select  EnterUserID, Enterdate
from tblCsEventReminders
where EnterDate >= Convert(datetime, '2015-04-01')

I am essentially trying to write a query to count the number of user logins after a certain date, so I need to count 'EnterUserID' but I am having problems getting the count() function to work.

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Transact SQL :: Find A Count On Group Of Member IDs

Aug 20, 2015

I am trying to find a count on group of our memberid`s who were active within a year since 2010 till today for particular memberships in my table I have memberid int effectivedate datetime termdate datetime Membershiptype varchar(10) ='GOLD','Silver' and 'Platinum'. I haven't used sql in a long time..

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Transact SQL :: How To Count And Sum A Date Based On Conditions

Jun 18, 2015

I have conducted a thorough search in the forums and cannot quite find my answer. I have a date field called open_date. If the open_date is more than 30 days old, I need to count it. I have started with the following code:

SELECT 'Older_Than_30Days' =
CASE
WHEN open.date >= 30 THEN '1'
ELSE '0"
END

My problem is the WHEN.

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Transact SQL :: Total Count Of Table Rows

Sep 15, 2015

I have a question regarding the total count of the table rows

Select count (name) from test. Lets say I have got 200 count. And Select count (lastname) from test1.I have got 200.And this counts I should store it in "There are nn name items awaiting your attention and nn pending lastname's awaiting your approval".

So now I have to store the count in 'nn'.

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Transact SQL :: Count Of Records By Month Wise

Oct 7, 2015

I am trying to get count of  records by month wise when they select year .It was showing  the out put correctly but its showing months arer in numbers,but I want to display Jan,Feb ...

SELECT DISTINCT Standard, COUNT(Standard) AS Total,month(ReportDate) Month
FROM CPTable where
year(ReportDate) = '2015'
GROUP BY Standard, Standard ,
month(ReportDate)

Output

Standard Total Month
NULL 0 1 //Jan
NULL 0 2 //Feb
NULL 0 3
NULL 0 4
NULL 0 5
OSHA 18001, 1 5
NULL 0 6
NULL 07
NULL 08
OSHA 18001,158
TL 9000,18
NULL 09
OSHA 18001,139

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Transact SQL :: How To Select Columns That Are Not In GROUP BY And Get COUNT

Jul 3, 2015

I am using SQL 2012.  I have a GROUP BY and I want to select two other fields from my table at the same time: One column that is a string (account_code) and one that I need to perform a count on (customer_number).  I know the code COUNT(DISTINCT customer_number) works for getting that.   I need to select both of those fields on top of what I have.  I have the following:

DECLARE @Providers TABLE (ID INT IDENTITY(1,1),
Provider_Name VARCHAR(20),
Uniq_Id VARCHAR(10),
Total_Spent MONEY,
Total_Earned MONEY)
INSERT INTO @Providers (Provider_Name, Uniq_Id,Total_Spent,
Total_Earned)

[Code] .....

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Transact SQL :: Condition Failed Rows Count

Jul 3, 2015

I am using SQL Server 2008.Each stock item will have default 4 document type (1, 5, 6, 7) and each will have 3 zone's (1, 2, 3) to qualify. Each zone will be updated to 1 for that document type if the item successfully pass through it. If all zone are NULL means no transaction. How to retrieve only the failed rows which means not all zone are 1 or NULL.In the image GJ-00064 has one row failed. So how to get the count of failed rows for each item

Expected result:

Uniid <-> Stockcode <-> FailedRows
1670 <-> GJ-00064 <-> 1

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Transact SQL :: Count The Number Of Workflows From Top To Point

Jul 31, 2015

who has workflows created and ordered by CreateTimestamp . i need to count the number of workflows from top to point where there is either a success or failure workflow that occurs at the latest . 

1.ban 137108351 has success workflow  and prior to that workflow it has 2 workflows (exclude success and failure)
2.ban 104917284 has success workflow as latest (it still has failure but not considered because it is occurred earlier to success ) and prior to that workflow it has 2 workflows (exclude success and failure)
3.ban 107500674 has failure workflow  and prior to that workflow it has 0 workflows (exclude success and failure)

below provided code for sample data as well

GO
/****** Object: Table [Temp].[deleteit] Script Date: 7/31/2015 3:04:55 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [Temp].[deleteit](
[ban] [nvarchar](256) NULL,

[code]....

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Transact SQL :: How To Get Distinct Count Of All Columns Of A Table

Dec 3, 2015

I have a table called Employee which have 6 columns. This table are having 1000 records. Now I want to know the distinct value count of all these 6 columns as well as normal count. like this:

ColumnName DistinctCount NormalCount
Id 1000 1000
Name 1000 1000
Phone 600 600
PINCode 200 1000
City 400 1000
Gender 2 1000

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Transact SQL :: Email Notifications - Count For Name And Logins

Nov 6, 2015

I have a stored procedure which will send an email notification everyday the count of names and count of logins at night. And this sends like a link so the users can directly click on the link(s) and see who all logged in. This works perfectly fine.

Now my requirement is that if there is no count for either name or logins it should send just as text and not as link.

Select count (name) from dbo.test=0 just plain 'text total count of names 0'
Select count (logins) from dbo.test1=0 just plain text 'total count of logins 0'

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Transact SQL :: Count Of Same UserID Used Within 7 Days For That Month

Nov 19, 2015

I want to find out count of same UserID used within 7 days for that month.

For example, in below scenario, UserID 458's 1st TTo is 8/26/2015 and it used again on 8/28/2015 which is less than 7 so result should be 1. (DateDiff between 1st TTo and 2nd Tfrom should be less than 7) This is for month of Aug.

ID TFrom TTo
9876 8/1/2015 8/7/2015
4140 8/21/2015 9/4/2015
458 8/23/2015 8/26/2015
458 8/28/2015 9/8/2015

Scenario 2,for UserId 458, TTo is 9/20 and it used again Tfrom on 9/20 so result should be 1 

user ID TFrom T To

592 9/1/2015 9/24/2015
526 9/3/2015 9/11/2015
292 9/11/2015 9/25/2015
352 9/12/2015 9/24/2015
458 9/14/2015 9/20/2015
458 9/20/2015 10/2/2015
706 9/22/2015 10/6/2015

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Transact SQL :: Accurate Count Of Workstations Connected To Database?

Nov 2, 2015

How do I get an accurate count of workstations connected to a database?

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Transact SQL :: Stored Procedure For Total Count For New Users

Jul 14, 2015

I need to create a stored procedure for total count of the user's. If  User from front end  invites other user to use my tool, that user will be stored into a table name called "test",lets say it will be stored as"Invited 1 User(s)" or if he invites 2 users it will store into table as "Invited 2 User(s)."

But now we have changed the concept to get the ISID (name of the user)  and now when ever the user invites from the front end, the user who have invited should stored in two tables "test" and " test1" table .

After we get the data into test and test1 table i need the total count of a particular user from both tables test and test1.

if i invite a user , the name of the user is getting stored in both test and test1 tables.Now i want to get the count of a user from both tables which should be 1,but its showing 2.

Reason: Why i am considering the count from 2 tables is because before we were not tracking the usernames and we were storing the count in single test table.,but now we are tracking user names and storing them in both tables(test and test1).

Here is my sample  code:

I need to sum it up to get the total user's from both the table but I should get 1 instead of 2 

SELECT
(select distinct COUNT(*) from dbo.test
where New_Values like  '%invited%'
and Created_By= 'sam'
+
(select distinct count (*)  from dbo.test1
where invited_by ='sam'

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Transact SQL :: How To Count Number Of Specific Columns Of Table

Jul 11, 2015

I have a table called Employees which has lots of columns but I only want to count some specific columns of this table.

i.e. EmployeeID: 001

week1: 40
week2: 24
week3: 24
week4: 39

This employee (001) has two weeks below 32. How do I use the COUNT statement to calculate that within these four weeks(columns), how many weeks(columns) have the value below 32?

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Transact SQL :: Count To Get Distinct Phone No Greater Than 1 In A Query

Nov 11, 2015

I have a table with kind of data as below

PhNo     Address     DP    AutoID     Name
0123      RH           001    4577          J
0123      RH           004    4567           JD
0124      RH           010    4467          KK
0121       HN          007    4667         RK
012         SVN        009    4787         RKK
012         SVN        009    4787         RKR
011         SVN        009    4787         KKR

I need distinct phone numbers >1 for a address and if the same phNo has 2 different names I want to skip the second one.I want the output like below

PhNo     Address     DP    AutoID     Name
0123      RH           001    4577          J
0124      RH           010    4467          KK
0121        SVN        009    4787         RKK
012        SVN        009    4787         RKR
011         SVN        009    4787         KKR

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Transact SQL :: Update Unique Records Count For Subquery?

Sep 2, 2015

updating the # of Payer from below query to match with the # of rows for each payer record. See the Current and desired results below. The query is currently counting the # of rows for all payers together and updating 3 as # of payers. I need it to count # of rows for each payer like shown inDesired result below. It should be showing 1 for first payer and 2 for 2nd & 3rd based on # of times each payer is repeated..

SELECT b.FILING_IND, b.PYR_CD, b. PAYER_ID, b. PAYER_NAME,a.CLAIM_ICN,
(Select Count(*) From MMITCGTD.MMIT_CLAIM a, MMITCGTD.MMIT_TPL b , MMITCGTD.MMIT_ATTACHMENT_LINK c where a.CLAIM_ICN_NU =
c.CLAIM_ICN and b.TPL_TS = c.TPL_TS and a.CLAIM_TYPE_CD = 'X' 

[Code] ....

Current Result

FILING_IND
PYR_CD
PAYER_ID
PAYER_NAME
CLAIM_ICN
#_OF_PAYER

[code]....

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Transact SQL :: Group By Count Once For Duplicate Column Values?

Oct 1, 2015

My data is like below: 
 
ClassId ClassName   StudentId   Subject     SubjectId 
1         ESL       12         English      20 
1         ESL       13         Science     30 
1         ESL       12         Social       40 
1         ESL       12         Maths        50 
 
Required output: parameters are Subject column values 

ClassId ClassName   TotalStudents   SubjectIds  
 
1        ESL                     1              20, 40, 50 
1        ESL                     1              30 
 
When one student takes multiple subjects then count student only once, so in the above data 12 is one student id takes multiple subjects so counted only once. TotalStudents value is 1
 
I did write below query: 
 
Declare @subjectids string 
set @subjectids = '20,30,40,50' 

-- will split @subjectids  and store in temp table    

select classname, classid, Count(Distinct StudentId) 
from mytable 
where SubjectsIds in @subjectIds 
group by ClassId, ClassName, SubjectId, 
 
but it gives me below output:   

ClassId ClassName   TotalStudents   SubjectIds 
 
1        ESL        1              20 
1        ESL        1              30 
1        ESL        1              40 
1        ESL        1              50 

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Transact SQL :: How To Update A Field And Insert Increment Count

May 28, 2015

I want to update a field and in this field insert a increment count, for example:

When I make, "Select * from Users order by User" displays:

User1  |  NULL
User1  |  NULL
User1  |  NULL
User2  |  NULL
User2  |  NULL

and I want to do this:

User1  |  1
User1  |  2
User1  |  3
User2  |  1
User2  |  2

how to do this?

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Transact SQL :: How To Count Where Two Tables Multiple Columns Match

May 4, 2015

There are two tables

TABLE 1 (NAME - Groupseats)

id session course groupcode sub1 sub2 sub3

1 2015 ba1 137 HL EL Eco
2 2015 ba1 138 EL SL HS
3 2015 ba1 139 SL EL His

From this table i use to admit a student and select their choice of group simultaneously all the subjects associated with GROUP is save on another table.

Here is the TABLE 2 Structure and sample data:

table 2 (NAME - tblstudetail)

id studentID session course sub1 sub2 sub3

1 15120001 2015 ba1 EL SL HS
2 15120002 2015 ba1 HL EL Eco
3 15120003 2015 ba1 SL EL His
4 15120004 2015 ba1 HL EL Eco

AND so no..........................

Now i just want to COUNT the Number of Groups Filled in tblStudateil.

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Transact SQL :: Loop On Rows - Count Of Documents For Each Supplier

Mar 22, 2015

I have 3 tables: Suppliers, Documents and Verification, each document may have multiple verification where I need to get the last verification according to verification date. So I just need a "Select top 1 result from Documents, Verification where doc_iddoc=ver_iddoc and result='True' order by ver_date desc" so far I get the result of the last verification, but here's the problem:

I need to get a row with the count of documents for each supplier, I mean:

Supplier Name     Docs      NegativeVerification
Acme Co                10                     1

that is I would need to loop for each supplier and each document and get the last verification, if one of any of documents have negative verification then add it to negative results. Is it possible to achieve this with a query or do I have to do it through stored procedure?

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Transact SQL :: Delete Query Based On Count Of Child Records?

Oct 12, 2015

I've been able to get this select query to work, but I'm not sure how to modify it to turn it into a DELETE query:
  
USE QSCTestENG
select p.[testid], COUNT(c.[testid])
FROM [dbo].[tblTestHeader] p
left outer join [dbo].[tblTestMeasurements] c ON p.[testid]=c.[testid]
where p.[model] = 'XPPowerCLC125US12'
group by p.[testid]
having COUNT(c.[testid]) <>48;

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Transact SQL :: Optimize Count Distinct For Multiple Groups Of Records?

May 21, 2015

I have a CTE returning a recordset which contains a column SRC.  SRC is a number which I use later to get counts and sums for the records in a distinct list. 

declare@startdate date = '2014-04-01'
declare@enddate date = '2014-05-01'
; with SM as
(
SELECT --ROW_NUMBER() OVER (PARTITION BY u.SRC ORDER BY u.SRC) As Row,
u.SRC,

[Code] ....

-- If Referral start date is between our requested dates

ref.Referral_Start_Date between @startdate and @enddate

OR

-- Include referrals which started before our requested date, but are still active during our date range.

(ref.Referral_Start_Date < @startdate and (ref.Referral_End_Date > @startdate OR ref.Referral_End_Date IS NULL ))
)
INNER JOIN c_sdt s on s.Service_Delivery_Type_Id = u.Service_Delivery_Type_Id
AND s.Service_Delivery_Unit_Id = 200
)
SELECT
count(distinct (case SRC when 91 then client_number else 0 end)) As Eligable_91,

[code]....

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