Using Count() In Sql
Feb 19, 2004
I have a table(sometable) in my db that looks like this:
user item
bob books
bob pens
bob frogs
jay pencils
rob cups
rob plantsI run this script:SELECT DISTINCT user AS users
FROM sometable to get:users
bob
jay
robHow would I get it to include the # of rows ror each user like this:
users number
bob 3
jay 1
rob 2Thanks in advance.
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Aug 6, 2006
With the function below, I receive this error:Error:Transaction count after EXECUTE indicates that a COMMIT or ROLLBACK TRANSACTION statement is missing. Previous count = 1, current count = 0.Function:Public Shared Function DeleteMesssages(ByVal UserID As String, ByVal MessageIDs As List(Of String)) As Boolean Dim bSuccess As Boolean Dim MyConnection As SqlConnection = GetConnection() Dim cmd As New SqlCommand("", MyConnection) Dim i As Integer Dim fBeginTransCalled As Boolean = False
'messagetype 1 =internal messages Try ' ' Start transaction ' MyConnection.Open() cmd.CommandText = "BEGIN TRANSACTION" cmd.ExecuteNonQuery() fBeginTransCalled = True Dim obj As Object For i = 0 To MessageIDs.Count - 1 bSuccess = False 'delete userid-message reference cmd.CommandText = "DELETE FROM tblUsersAndMessages WHERE MessageID=@MessageID AND UserID=@UserID" cmd.Parameters.Add(New SqlParameter("@UserID", UserID)) cmd.Parameters.Add(New SqlParameter("@MessageID", MessageIDs(i).ToString)) cmd.ExecuteNonQuery() 'then delete the message itself if no other user has a reference cmd.CommandText = "SELECT COUNT(*) FROM tblUsersAndMessages WHERE MessageID=@MessageID1" cmd.Parameters.Add(New SqlParameter("@MessageID1", MessageIDs(i).ToString)) obj = cmd.ExecuteScalar If ((Not (obj) Is Nothing) _ AndAlso ((TypeOf (obj) Is Integer) _ AndAlso (CType(obj, Integer) > 0))) Then 'more references exist so do not delete message Else 'this is the only reference to the message so delete it permanently cmd.CommandText = "DELETE FROM tblMessages WHERE MessageID=@MessageID2" cmd.Parameters.Add(New SqlParameter("@MessageID2", MessageIDs(i).ToString)) cmd.ExecuteNonQuery() End If Next i
' ' End transaction ' cmd.CommandText = "COMMIT TRANSACTION" cmd.ExecuteNonQuery() bSuccess = True fBeginTransCalled = False Catch ex As Exception 'LOG ERROR GlobalFunctions.ReportError("MessageDAL:DeleteMessages", ex.Message) Finally If fBeginTransCalled Then Try cmd = New SqlCommand("ROLLBACK TRANSACTION", MyConnection) cmd.ExecuteNonQuery() Catch e As System.Exception End Try End If MyConnection.Close() End Try Return bSuccess End Function
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May 25, 2015
below data,
Countery
parentid
CustomerSkId
sales
A
29097
29097
10
A
29465
29465
30
A
30492
30492
40
[code]....
Â
Output
Countery
parentCount
A
8
B
3
c
3
in my count function,my code look like,
 set buyerset as exists(dimcustomer.leval02.allmembers,custoertypeisRetailers,"Sales")
set saleset(buyerset)
set custdimensionfilter as {custdimensionmemb1,custdimensionmemb2,custdimensionmemb3,custdimensionmemb4}
set finalset as exists(salest,custdimensionfilter,"Sales")
Set ProdIP as dimproduct.dimproduct.prod1
set Othersset as (cyears,ProdIP)
(exists(([FINALSET],Othersset,dimension2.dimension2.item3),[DimCustomerBuyer].[ParentPostalCode].currentmember, "factsales")).count
it will take 12 to 15 min to execute.
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Jul 3, 2013
I am trying to get count on a varchar field, but it is not giving me distinct count. How can I do that? This is what I have....
Select Distinct
sum(isnull(cast([Total Count] as float),0))
from T_Status_Report
where Type = 'LastMonth' and OrderVal = '1'
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Nov 26, 2007
I use SQL 2000
I have a Column named Bool , the value in this Column is 0�0�1�1�1
I no I can use Count() to count this column ,the result would be "5"
but what I need is "2" and "3" and then I will show "2" and "3" in my DataGrid
as the True is 2 and False is 3
the Query will have some limited by a Where Query.. but first i need to know .. how to have 2 result count
could it be done by Count()? please help.
thank you very much
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Jul 23, 2005
SQL 2000I have a table with 5,100,000 rows.The table has three indices.The PK is a clustered index and has 5,000,000 rows - no otherconstraints.The second index has a unique constraint and has 4,950,000 rows.The third index has no constraints and has 4,950,000 rows.Why the row count difference ?Thanks,Me.
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Aug 21, 2007
The following query returns a value of 0 for the unit percent when I do a count/subquery count. Is there a way to get the percent count using a subquery? Another section of the query using the sum() works.
Here is a test code snippet:
--Test Count/Count subquery
declare @Date datetime
set @date = '8/15/2007'
select
-- count returns unit data
Count(substring(m.PTNumber,3,3)) as PTCnt,
-- count returns total for all units
(select Count(substring(m1.PTNumber,3,3))
from tblVGD1_Master m1
left join tblVGD1_ClassIII v1 on m1.SlotNum_ID = v1.SlotNum_ID
Where left(m1.PTNumber,2) = 'PT' and m1.Denom_ID <> 9
and v1.Act = 1 and m1.Active = 1 and v1.MnyPlyd <> 0
and not (v1.MnyPlyd = v1.MnyWon and v1.ActWin = 0)
and v1.[Date] between DateAdd(dd,-90,@Date) and @Date) as TotalCnt,
-- attempting to calculate the percent by PTCnt/TotalCnt returns 0
(Count(substring(m.PTNumber,3,3)) /
(select Count(substring(m1.PTNumber,3,3))
from tblVGD1_Master m1
left join tblVGD1_ClassIII v1 on m1.SlotNum_ID = v1.SlotNum_ID
Where left(m1.PTNumber,2) = 'PT' and m1.Denom_ID <> 9
and v1.Act = 1 and m1.Active = 1 and v1.MnyPlyd <> 0
and not (v1.MnyPlyd = v1.MnyWon and v1.ActWin = 0)
and v1.[Date] between DateAdd(dd,-90,@Date) and @Date)) as AUPct
-- main select
from tblVGD1_Master m
left join tblVGD1_ClassIII v on m.SlotNum_ID = v.SlotNum_ID
Where left(m.PTNumber,2) = 'PT' and m.Denom_ID <> 9
and v.Act = 1 and m.Active = 1 and v.MnyPlyd <> 0
and not (v.MnyPlyd = v.MnyWon and v.ActWin = 0)
and v.[Date] between DateAdd(dd,-90,@Date) and @Date
group by substring(m.PTNumber, 3,3)
order by AUPct Desc
Thanks. Dan
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Jun 25, 2007
Hi all
i using lookup error output to insert rows into table
Rows count rows has been inserted on the table 59,123,019 mill
table rows count 6,878,110 mill ............................
any ideas
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Aug 28, 2007
Is there a difference in performance when using count(*) or count(columnname)?
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Mar 20, 2004
I would like to AUTOMATICALLY count the event for the month BEFORE today
and
count the events remaining in the month (including those for today).
I can count the events remaining in the month manually with this query (today being March 20):
SELECT Count(EventID) AS [Left for Month],
FROM RECalendar
WHERE
(EventTimeBegin >= DATEADD(DAY, 1, (CONVERT(char(10), GETDATE(), 101)))
AND EventTimeBegin < DATEADD(DAY, 12, (CONVERT(char(10), GETDATE(), 101))))
Could anyone provide me with the correct syntax to count the events for the current month before today
and
to count the events remaining in the month, including today.
Thank you for your assistance in advance.
Joel
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Feb 26, 2007
I have an sql command for when you add a new name to the database it counts to see how many of the name entered to the textbox exist in the database. If the count is 0 then it will add the name to the table. Else it displays an error message.
This works fine for inserting a new name but on my update page where you may update the name I have the same code which on button click counts to see how many exist. But if you leave the textbox the same value and click the button the count obviously results in 1 and brings up an error message.
Is there a way I can do a count but not including the name that is currently the value of the textbox?protected void UpdateSharedArea(object sender, EventArgs e)
{
SqlConnection connection = new SqlConnection(docShare_ConString);
//Count the amount of area names that are the same as typed by user
SqlCommand existCheck = new SqlCommand("SELECT COUNT(doc_area_name) FROM document_area WHERE doc_area_name = @doc_area_name", connection);
SqlParameter areaname = new SqlParameter("@doc_area_name", SqlDbType.VarChar);
areaname.Value = AreaText.Text;
existCheck.Parameters.Add(areaname);
connection.Open();
int count = (int)existCheck.ExecuteScalar();
connection.Close();
//If the area name does not exist within the table
if (count == 0)
{
//Update name Cheers, Mark
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Jun 12, 2007
Hi,
This is my table structure ,
Name
John
John
Raj
John
Raj
From the above table i want to count the repeated name and my output should be
Name Count
John 3
Raj 2
since no of jone in my table is 3 and number of Raj is 2 .
how to write the query for this ?
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Jun 17, 2007
I want to do something like this:
SELECT COUNT (SELECT TOP(10) * FROM MyTable order by Date Desc) FROM MyTable where User = 'Scott'
What I want is to return the number of affected rows where the column 'User' equals 'Scott'....But is should only check in the 10 latest inserted rows.....
Hope you understand what I mean...
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Sep 26, 2007
'<%# Eval("Username") %>'
Hi: Everybody
Today is not my day, I am trying to get a Count(*) from a table (name: Photos), I can get the total number if like this: WHERE (u_username = 'jamest85' )
Now, I want replace the 'jamest85' to a value from a Label, like: Label1.text or '<%# Eval("Username") %>', but always has error, so can you please check for me, how to make it right?
Thanks.
Below is the code:
<asp:Label ID="Label1" runat="server" Text='<%# Eval("Username") %>'></asp:Label> <asp:SqlDataSource ID="SqlDataSource2"runat="server" ConnectionString="<%$ ConnectionStrings:myConString %>" SelectCommand="SELECT COUNT(*) AS TotalPhotos FROM Photos WHERE (u_username = 'jamest85' ) GROUP BY u_username"></asp:SqlDataSource>
Thank you very much
jamest85
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Sep 26, 2007
Hello, I need to retrieve all records from a table named Blogs and the number of Posts associated with which Blog giving the name NumberOfPosts to that extra column. I have the following: SELECT b.*, p.COUNT(*) AS NumberOfPosts FROM dbo.Blogs b LEFT JOIN dbo.Posts p ON b.BlogId = p.BlogId I get the error: Incorrect syntax near '*'. Could someone, please, help me out? Thanks, Miguel
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May 17, 2008
Hi all, Im using ASP.Net.In that i have an sql count statement which returns the count of the total messages in a particular date. Dim dt As Date
smsuser = uname.SelectedItem.Text
d = day.SelectedItem.Value
m = mon.SelectedItem.Value
y = year.SelectedItem.Value
dt = dt.ToShortDateString.Concat(d, "/", m, "/", y)
Dim StrSql As String = "select Count(Message) from Message where UserName='" & smsuser & "' AND Date='" & dt & "'"
Dim cmd As New SqlCommand(StrSql, con)
Dim reader As SqlDataReader
Dim no As String
Try
con.Open()
reader = cmd.ExecuteReader
If reader.Read = True Then
count.Text = reader.GetValue(0)
End If The count is displayed in a text box. But, the sql statement is not giving the correct count.Wat is wrong? Pls help...
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Dec 24, 2003
Dear SQL,
I want to count the number of records, so I tried this:
SELECT COUNT(*) AS RecordCount
FROM Categories
WHERE Active = 1
ORDER BY Show_Order ASC
But it gives me an error:
error 8126: Column name 'Categories.Show_Order' is invalid in the ORDER BY clause because it is not contained in an aggregate function and there is no GROUP BY clause.
How can I make it work ? (I must ORDER it...)
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Dec 3, 2001
What is wrong with this query?
SELECT *, (SELECT Count(*) FROM TPlanObjects where FMainID=tpm.FID and FType='ARTICLE') as FArtCount, (SELECT Count(*) FROM TPlanObjects where FMainID=tpm.FID and FType='FILE') as FObjCount FROM tPlanMain as tpm
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Jan 23, 2002
I am usint DTS to transfer tables into a text file. I need to get a count of the number of rows that I transfer into each text file. Is there any way or an easy way to accomplish this?
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Sep 12, 2000
Hello,
I'm looking for a mean to be able to count records and to select them without having to write two SELECT lines :
select count(*) AS VNBR from SSITE where...
select Lenom = upper(nom), LeSite = Site+Page... from SSITE where...
WHERE... are the same for the two SELECTS ! Is there a solution ?
Thanks for your help.
Laurent.
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Apr 26, 2000
I have a table of issues with a column for issueID and another for issueType.
For each issuetype, I want to count how many issues are but those with no issues, I want it to return with a zero.
Is this possible?
Thanks,
Anthony
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Jul 2, 2004
Hi Folks,
I'm having a problem generating a total figure from two seperate sums in a query. Basically what I need to do is generate the total of select count(*) from t1, select count from t2.
without using a temp table.
Thanks in advance
Sirius
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Oct 15, 2004
I have to create a statement that will find the next highest number of a field that is stored as a char(5), like
' 2' and add a new record adding one to that max number. The field is padded with leading spaces. I know how to get the next number. The question is counting how many spaces I need (is it a 9 or a 10) and then stuffing the leading spaces in front of the new number.
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Jul 28, 1999
I want to be able to tell how many rows of data I have in each table. I don't want all of the tables detail though. How do I do this?
Thanks,
Tracy
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Jul 29, 1999
Thanks to Craig for helping me out with my first question. My next question is this. Is there a way to have it give me the counts for all tables without entering each tablename? I may have new tables every time and would like not to have to keep up with changing the script.
Thanks in advance,
Tracy
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Dec 28, 2000
Please tell me the different between count(1) and count(*) in sql65.
Thanks in advance.
Cheers,
Huiyong
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Jul 7, 2006
Hi,
I manage an affiliate tracking database for some of our online advertising campaigns. In the database I have a "clicks" table, and a "Leads" table. I am trying to join these two tables on a "Source" fields then use "group by" so that I can return "Source" counts for both the clicks and leads. I want both counts to show up in the same row such that if I have 100 clicks and 10 leads for source "xyz" the results would be:
source Clicks Leads
xyz 100 10
I have tried the followign query, but it returns the same value for both rows:
SELECT Leads.source, COUNT(Clicks.source),COUNT(leads.source)
FROM Leads INNER JOIN
Clicks ON Leads.source = Clicks.source
GROUP BY leads.source
I can do this with a subquery or by looping through through a recordset, but was wondering if it is possible to do without using these methods.
Does anyone have any ideas? If so I would greatly appreciate your feedback.
Thanks!
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Jun 7, 2004
Hi,
I've got a database with two tables:
members
notes
Each member can have zero or more notes associated with them and each note has a 'new' field which indicates that it hasn't been read since it was added.
I want to produce a list of members and highlight the ones in bold that have unread notes.
If I use
SELECT members.firstname, COUNT(*) FROM members, notes WHERE notes.member=members.ref AND notes.new=1
then I only get the items that have unread notes (and I don't actually need to know the count).
How can I get what I want?
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May 23, 2012
I am having trouble getting an accurate count for my query. i have
select count(ID) as Cnt from Users
where status in ('ACTIVE','INACTIVE','HOLD')
and IdNumber = '4422'
I should be getting a count of 3, but I always get only 1. I noticed when I take off the IN() I get an accurate count. Is there something wrong with using IN with count ?
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Apr 9, 2008
I have a table hits with following fields with sample Data
Code: CreatedOn:
4 2008-04-01 14:48:15.327
4 2008-04-01 13:53:41.923
4 2008-04-02 15:16:25.327
5 2008-04-02 16:31:07.383
5 2008-04-02 16:25:07.383
5 2008-04-02 16:28:07.383
5 2008-04-03 16:50:34.217
4 2008-04-03 13:23:30.767
3 2008-04-04 13:41:41.627
5 2008-04-04 13:55:00.497
__________________________________________________________
i want to create a query to get count of the code per day.
__________________________________________________________
Code: Date: Count:
3 2008-04-04 1
4 2008-04-01 2
4 2008-04-02 1
4 2008-04-03 1
5 2008-04-02 3
5 2008-04-03 1
------------------------------------------------------------
How can i do this to count code per day in a single query?
I am using sql server 2005.
==============================================================
Muhammad Saifullah
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Apr 15, 2008
How to I calculate the sum on count(*) from multiple tables?
Prakash.P
The secret to creativity is knowing how to hide your sources!
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May 27, 2008
I have 1 column that composes of 15 Yes and 13 No. What's the formula in getting the count of each (Yes and No)?
Thanks
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Jun 10, 2008
Hi, I have a problem with one query. I have a table that contains some records. Each record has a Status(possible values: Closed, completed, and Open) and Priority (possible values: from 0 to 4) I want to count by Priority, for example:
Status Open Completed Closed
0 3 2 1 <-- Number of records
1 10 22 12
2 ...
3
4
So, the first line says that there are 3 Open records which have Status 0.
Thank you.
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