Simple Counting Across 3 Tables
May 6, 2008
Hi there,
it seems like an easy query here. I have 3 tables:
Forums (ID. ForumTitle)
Topics (ID, TopicTitle, ForumID)
Posts (ID, PostTitle, TopicID)
and data
Forums
1, FTitle#1
2, FTitle#2
3, FTitle#3
Topics
1, TTitle#1, 1
2, TTitle#2, 1
3, TTitle#3, 1
4, TTitle#4, 2
Post s
1, PTitle#1, 1
2, PTitle#2, 1
3, PTitle#3, 2
4, PTitle#4, 3
5, PTitle#5, 4
I need to count for each forum the number of Topics and Posts so it will look like that (Forums.ID, Forums.ForumTitle, TotalTopics, TotalPosts):
1, FTitle#1, 3, 4
2, FTitle#2, 1, 1
3, FTitle#3 0, 0
How can I achieve that ?
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Feb 26, 2001
I report SQL Server table information (table names, field names, field datatypes, etc.) to my users using an ACCESS front end. Most of this information exists in the system tables. But I can't find a record count per table in the system tables. What's the fastest way to get a record count for all tables?
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Mar 11, 2002
I am kinda new with SQL and am trying to get a count of on the number of updates and or inserts to any given or group of tables and cannot get the syntax correct...can anyone help with this?
Thank you in advance.
Colin P.
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May 9, 2007
If I have a table called 'areas' as below which i'm using in a web app:
Code:
area_id mediumint(9) NO PRI auto_increment
name varchar(45) NO
postcode char(4) NO
o4s_coords varchar(15) YES
gm_coords varchar(200) YES
description text NO YES
filename varchar(30) YES
width smallint(4) YES
height smallint(4) YES
comment varchar(255) YES
This table is not going to ever hold more than 600 records. About 550 will only use the first 3 fields (area_id,name,postcode). Is it advisable to break this into 2 separate tables or given the small amount of content is it ok with some null fields?
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Nov 2, 2000
Can anybody tell me, how to write a T-SQL loop,
that goes through all tables in a database to
realize some updates there?
Thanx a lot in advace
Gert
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Jan 8, 2005
Hello, this is probably the most helpful forum I have found on the Net in awhile and you all helped me create a DB for my application and I have gotten kind of far since then; creating stored procedure and so forth. This is probably very simple but I do not yet know the SQL language in depth to figure this problem out. Basically I have a printer monitor application that logs data about who is printing (via logging into my app with a passcode, which is located in the SQL DB), what printer they are using, and the number of pages. I have 3 tables, one called 'jobs' which acts like a log of each print-job, a user table (which has data like Name=HR, Passcode=0150) and table listing the printers. Each table uses an integer ID field which is used for referencing and so forth. Tables were created with this command sequence:
create table [User_Tbl](
[ID] int IDENTITY(1,1) PRIMARY KEY,
[Name] varchar(100),
[Password] varchar(100),
)
go
create table [Printer_Tbl(
[ID] int IDENTITY(1,1) PRIMARY KEY,
[Name] varchar(100),
[PaperCost] int
)
go
create table jobs(
[JobID] int IDENTITY(1,1) PRIMARY KEY.
[User_ID] int,
Printer_ID int,
JobDateTime datetime,
NumberPrintedPages int,
CONSTRAINT FK_User_Tbl FOREIGN KEY ([User_ID])
REFERENCES [User_Tbl]([ID]),
CONSTRAINT FK_Printer_Tbl FOREIGN KEY ([Printer_ID])
REFERENCES Printer_Tbl([ID])
)
go
I need display some data in a datagrid (or whatever way I present it) by using a query. I can do simple things and have used a query someone on here suggested for using JOINS, and I understand but I can't figure out how to make this particular query. The most necessary query I need for my report needs to look like this: (this will be from a data range @MinDate - @MaxDate)
Username PagesOnPrinter1 PagesOnPrinter2 TotalPagesPrinted Cost
--------- ---------------- --------------- ---------------- ----
HR 5 7 12 .84
Finance 10 15 25 1.75
So it gives the username, how many pages printed on each printer, the total pages printed, and the total cost (each printer has a specific paper cost, so it is like adding the sum of the costs on each printer). This seems rather simple, but I cannot figure out how to translate this to SQL.
One caveat I have is that the number of printers is dynamic, so that means the the columns are not really static. Can this be done? And if so how can I go about it? Thanks everyone!
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Mar 22, 2007
So these are a couple different interpretations I've made of a statement that needs to return students name's with the OSOS field in the attendcode code column of the attendance table on todays date with an attendance.aperiod column equal to 4.
This first one returns no results at all when I should get about 7 rows or so.....
Select Student.name,
attendance.studentid,
attendance.attenddate,
attendance.aperiod,
attendance.attendcode
from Attendance, Student
where AttendDate >= DateAdd(Day, DateDiff(Day, 0, GetDate()), 0)
And AttendDate < DateAdd(Day, DateDiff(Day, 0, GetDate()), 0) + 1
And aperiod = '4'
And AttendCode = 'OSOS'
AND student.name = Attendance.studentid
This one is returning all of the names in the database 6 times each.
Select Student.name,
attendance.studentid,
attendance.attenddate,
attendance.aperiod,
attendance.attendcode
from Attendance, Student
where AttendDate >= DateAdd(Day, DateDiff(Day, 0, GetDate()), 0)
And AttendDate < DateAdd(Day, DateDiff(Day, 0, GetDate()), 0) + 1
And aperiod = '4'
And AttendCode = 'OSOS' order by name
I think something is messed up with my WHERE control but I cant figure it out... Any help is greatly appreciated!
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Oct 14, 2005
I need a sql statment to return a list of tables for a given databasewhere the Recovery Model option is Simple.TIARob
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Jun 18, 2007
Experienced memebers,
I have what should be simple question about related tables in a dataset and using those fields in a report. Here is my simple design.
Order Header -> Line Item -> Line Discount -> Discount Table
Now when designing this report I cannot seem to access the related discount records for the line item. (as more than one can be applied) Every time I try to drag an field from one of the tables in the dataset to my report it automatically adds "First()" onto the field value expression. This seems to work fine for the order header, but doen't even come close to getting the right discount on the line item? I basically need to pass through the Line Discount table to get to the discount name field to put on the same line as my line item data on the report.
I have looked and googled for for an example on this, but have come up short. Can anyone point me in the right direction?
Thanks,
Chris
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Jul 20, 2005
I need just the names of tables, views and sprocs within a SQL Serverdatabase. What's the easiest way to do this?
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May 26, 2004
Hey,
I have MS SQL database.
I have procedure:
code:--------------------------------------------------------------------------------
CREATE PROCEDURE dbo.Reg_DropTable
@ModuleId varchar(10)
AS
declare @TableName varchar, @kiek numeric
set @TableName = 'reg_'+@ModuleId
begin
DROP TABLE @TableName <- HERE I GOT ERROR
end
GO
--------------------------------------------------------------------------------
I got error when using variable with tables names.
How to do this?
Ps. Number is send to this function and it must drop table with name Reg_[That number]
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Jun 26, 1998
When I have made a query with IDC, how can I make a counter in the .htx-file, which tells me if there was no query-results ?
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Jan 28, 2007
Hi,New to SQL. Got some questions about it.Suppose I have two tables. Each of them has a single column, named asc1. For table T1, I have:11133579For table T2, I have:1234513The exercise I want to do is to select the number of occurence in T1for those elements in T2. For above tables, I want to show:1 3 ( i.e. "1" is in T2 and shows 3 times in T1)2 0 (i.e. "2" is in T2 but doesn't show in T1)3 2 (i.e. "3" is in T2 and show 2 times in T1)It seems I can't figure out a good way to do this. Any help will beappreciated.Thanks
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Oct 24, 2007
I am working on writing a query to use with Reporting Services where I am pulling grades from a school grade book trying to see what students qualify for Honor Roll.
I have one Honor Roll done but am still working on the other. The qualifications I am trying to get is that a student has a gpa >3.0 and can have one C grade. I've got the 3.0 and the C's down but how to get the query to pull anyone having at the most one C. It doesn't matter whether it is C+, C, or C- but the student can't have more than a count of one.
Here is what I have
SELECT DISTINCT s.lastname+','+' '+s.firstname AS Student, s.studentnumber,e.grade,t.name AS Term,
gs.score, c.name AS Course, se.teacherdisplay
FROM GradingScore gs
INNER JOIN student s ON s.personid = gs.personid
INNER JOIN v_TermGpa tg ON tg.personid = s.personid
INNER JOIN enrollment e ON e.enrollmentid = s.enrollmentid AND e.calendarid = gs.calendarid
INNER JOIN scheduleStructure ss ON ss.calendarid = gs.calendarid
INNER JOIN Termschedule ts ON ts.structureid = ss.structureid
INNER JOIN Term t ON t.termscheduleid = ts.termscheduleid
INNER JOIN section se ON se.sectionid = gs.sectionid
INNER JOIN course c ON c.courseid = se.courseid
WHERE gs.calendarID = 20 AND t.name ='1st 6wk' AND tg.term1gpa >=3.0 AND s.enddate IS NULL
AND gs.score <='C-'
AND (select gs1.personid, gs1.score
from gradingscore gs1
inner join enrollment e1 on e1.personid = gs1.personid
Inner join schedulestructure ss1 on ss1.calendarid = e1.calendarid
Inner join termschedule ts1 on ts1.structureid = ss1.structureid
Inner join term t1 on t1.termscheduleid = ts1.termscheduleid
where gs1.score IN('C','C+','C-') and (count(score)= 0 or count(score) < 2))
ORDER BY s.[student]
I can get it to work all the way up to where the And (count(score) starts then there is something about the way the count is in there that I haven't figured out yet.
Thanks in Advance for any help or advice
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Jan 26, 2008
Hi,
How do I count the total number of each row in a table? The table Company has a field called Group. How do I count the total amount of members in each group?
Thanks in advance!
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Oct 5, 2007
Hi all,
I would like to have my SQL statement result to return an additional "column", automatically adding an "auto-increasing" number with it.
So if I for example select all Dates older than today's date, I would want something like this:
1
10/12/2006
2
10/18/2006
3
10/20/2006
4
10/22/2006
5
10/30/2006
Keep in mind that it's not my intention to fysically insert the "counting" column into the table, but rather do it "virtually".
Is this possible? And if yes, how ? :)
Thanks in advance
Nick
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Jan 31, 2008
Sorry for all the code below. I am realizing that my DB design is bad but I already have 7 pages built around it that work fine...until now, so I would really like to not change the DB if possible. My table has 22 columns: iID which is the identity colum. Then there is iAsmtID which is the assessment ID. Lastly there are 20 colums- q1 through q20, each of which will have a 1, 2, or 3, depending on the radio buttons the user clicked. Nows my problem. I have to find a percent for the assessment. It works like this. 3s are NA so we are not worried about them now. I need to find the number of ones and the number of twos for each assessment ID. Then add those together and divide by the number of ones. How can I find the number of the ones and twos. I have below but its not working. Says there is incorrect syntax at the ',' which is a different color below. Any and all help appreciated.'Open connectionset conn=Server.CreateObject("ADODB.Connection")conn.open My_Connset rs = Server.CreateObject("ADODB.Recordset")str = "SELECT SUM((CASE WHEN q1=1 THEN 1 ELSE 0 END)+(CASE WHEN q2=1 THEN 1 ELSE 0 END)+(CASE WHEN q3=1 THEN 1 ELSE 0 END)+(CASE WHEN q4=1 THEN 1 ELSE 0 END)+(CASE WHEN q5=1 THEN 1 ELSE 0 END)+(CASE WHEN q6=1 THEN 1 ELSE 0 END)+(CASE WHEN q7=1 THEN 1 ELSE 0 END)+(CASE WHEN q8=1 THEN 1 ELSE 0 END)+(CASE WHEN q9=1 THEN 1 ELSE 0 END)+(CASE WHEN q10=1 THEN 1 ELSE 0 END)+(CASE WHEN q11=1 THEN 1 ELSE 0 END)+(CASE WHEN q12=1 THEN 1 ELSE 0 END)+(CASE WHEN q13=1 THEN 1 ELSE 0 END)+(CASE WHEN q14=1 THEN 1 ELSE 0 END)+(CASE WHEN q15=1 THEN 1 ELSE 0 END)+(CASE WHEN q16=1 THEN 1 ELSE 0 END)+(CASE WHEN q17=1 THEN 1 ELSE 0 END)+(CASE WHEN q18=1 THEN 1 ELSE 0 END)+(CASE WHEN q19=1 THEN 1 ELSE 0 END)+(CASE WHEN q20=1 THEN 1 ELSE 0 END) AS [color:#FF0000]CountOfOnes,SUM[/color]((CASE WHEN q1=2 THEN 1 ELSE 0 END)+(CASE WHEN q2=2 THEN 1 ELSE 0 END)+(CASE WHEN q3=2 THEN 1 ELSE 0 END)+(CASE WHEN q4=2 THEN 1 ELSE 0 END)+(CASE WHEN q5=2 THEN 1 ELSE 0 END)+(CASE WHEN q6=2 THEN 1 ELSE 0 END)+(CASE WHEN q7=2 THEN 1 ELSE 0 END)+(CASE WHEN q8=2 THEN 1 ELSE 0 END)+(CASE WHEN q9=2 THEN 1 ELSE 0 END)+(CASE WHEN q10=2 THEN 1 ELSE 0 END)+(CASE WHEN q11=2 THEN 1 ELSE 0 END)+(CASE WHEN q12=2 THEN 1 ELSE 0 END)+(CASE WHEN q13=2 THEN 1 ELSE 0 END)+(CASE WHEN q14=2 THEN 1 ELSE 0 END)+(CASE WHEN q15=2 THEN 1 ELSE 0 END)+(CASE WHEN q16=2 THEN 1 ELSE 0 END)+(CASE WHEN q17=2 THEN 1 ELSE 0 END)+(CASE WHEN q18=2 THEN 1 ELSE 0 END)+(CASE WHEN q19=2 THEN 1 ELSE 0 END)+(CASE WHEN q20=2 THEN 1 ELSE 0 END) AS CountOfTwos FROM ITCC_Test WHERE iAsmtID="&iAsmtIDresponse.Write(str)rs.open str, connif rs.eof = true then ' response.Write("<h2>No count done</h3>") response.End()else'Declare variables CountOfOnes = rs("CountOfOnes") CountOfTwos = rs("CountOfTwos")end ifrs.closeset rs = nothingconn.close'set conn = nothing
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Mar 15, 2004
Hi everyone,
another problem:
I'm trying to count the number of rows but it's not working. Here's my code:
SELECT 'TOTAL number of rows', count(*) --This counts 4! The total number of rows in [Activites]
FROM [Activities]
WHERE [Person ID] IN
(
SELECT DISTINCT [Person ID] --This brings back 2 rows (two specific people)
FROM [Activites]
)
As my comments say, I'm wanting to count the two rows but it's counting every row. Obviously I'm doing something wrong but I can't work it out.
Any help?
Andrew
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Jun 22, 2004
Hi,
I'm trying to include the COUNT(*) value of a sub-query in the results of a parent query. My SQL code is:
SELECT appt.ref, (Case When noteCount > 0 Then 1 Else 0 End) AS notes FROM touchAppointments appt, (SELECT COUNT(*) as noteCount FROM touchNotes WHERE appointment=touchAppointments.ref) note WHERE appt.practitioner=1
This comes up with an error basically saying that 'touchAppointments' isn't valid in the subquery. How can I get this statement to work and return the number of notes that relate to the relevant appointment?
Cheers.
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Oct 19, 2005
Is there a way to get a SQL Stored Procedure to count the number of rows returned and then store that total in a variable?
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Aug 17, 2006
Hi,
How can I aggregate a top 5 count across two satellite tables?
e.g. Orders and downloads table each have multiple entries for the same customer ID I would like to count the orders and add them to the downloads count too e.g. 5 orders added to 10 downloads giving 15 as the total for this customer and get a total 'site activity' result which I would like to select the top 5 for.
Any help or pointers would be a great help!
Thanks.
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Aug 29, 2006
hi all
quick question
is there any way to set up a column that has the row count in it? i need this for a program i am developing and this would make it much easier to deal with. I know i can get a total count but when i run a count within a select statement i just get '1' for every row. thanks
tibor
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Nov 29, 2006
Hi. I have a small problem that i just can't seem to figure out. I'm trying to generate a report for a case management system. The problem I am having is trying to exclude some of these results. Here is my query:
SELECT COUNT(DefendantCase.ProsAtty) AS CountOfProsAtty
FROM DefendantCase LEFT JOIN DefendantEventPros ON DefendantCase.VBKey=DefendantEventPros.VBKey
WHERE DefendantCase.StatusID=17 AND DefendantCase.ProsAtty=55
AND DefendantEventPros.EventDate BETWEEN DATEADD(DAY,-60,GETDATE()) AND GETDATE() AND DefendantEventPros.EventID=9
This query is trying to find the total amount of cases where the statusid=17, the prosatty=55, the date is between today and 60 days ago, and there is an eventid=9.
now, i'm not getting errors in the query itself; it's just that it's inflating the total number. If a case has more than one eventid=9, it will include that extra in the results. I do not want to include those in the results. Does anyone have any suggestions? Thanks!
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Mar 10, 2004
Hi,
I have a temp table that I use to calculate prices from and I need to know how many of each row with the same serialnumber.
I figured I could add a column that contains that number. But how will I get it there?
UPDATE [_temp] T1
SET T1.SERIAL_COUNT = (SELECT COUNT(*) FROM [_temp] T2 WHERE T1.SERIAL = T2.SERIAL)
Doesn't work. Any ideas?
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Mar 27, 2004
hiya all,
I got a table that is represented as a B-Tree, it has a one to
many relation with its self
------------
| UserID |
------------
|FatherID|
------------
UserID = FatherID
it looks like this
o
/// \
ooo ooo
//\ ///\
oo ooo ooo
I want to get all the nodes that has 256 children and grand children and each node is limited to have 6 nodes under it.
any ideas ? the DB isn't filled with data yet so we can add more fields
to the table if it helps.
I could write a trigger that increments a counter in each node but it will be a recursive trigger so it can go from the child to its father and the father to its father upating them and so on.
regards
Ahm
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Apr 23, 2008
I have a table that I want to use for reports that holds these datatypes
safe: Integer
unsafe: Integer
made_safe: Bit
unobserved: Bit
Which gets populated.
I want to count the values in each field but Bit fields seem to be awkward. This is my attempt
SELECT
SUM(safe)as TotalSafe,
SUM(unsafe)as TotalUnsafe,
COUNT(Case WHEN unobserved = 1 THEN 1 ELSE NULL END)as NotSeen,
COUNT(Case when made_safe = 1 THEN 1 ELSE NULL END) as TotalMadeSafe
FROM myTable
Any ideas please
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Jun 4, 2008
Hi all,
I am trying to count the total amount of times the primary key is used within each month of the year "JAN", "FEB" "MAR"... Unfortunately I have no idea how to A) Search by month and B) Count the total amount of times data within the new table that is created AFTER the outer joins are done. I hope you can help.
Thanks.
SELECT
*
FROM
tableA ta,
tableB tb,
tableC tc
WHERE tc.updated_date >= TO_DATE ('01/05/2008 00:00:00','DD/MM/YYYY HH24:MI:SS')
AND tc.updated_date <= TO_DATE ('31/05/2008 00:00:00','DD/MM/YYYY HH24:MI:SS')
AND tc.primaryKey = tb.primaryKey (+)
AND tc.primaryKey = ta.primaryKey (+)
AND count(tc.priarykey) -- This is what I want to count
;
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Oct 11, 2013
T-SQL counting rows with a value:
My query is like this:
SELECT
Name,
A,
B,
C,
D
FROM
Table
ORDER BY
Name
The query result looks like this:
Name A B C D
Bert 2 0 0 0
Bert 3 6 0 1
Mark 0 0 1 0
Mark 0 8 8 0
Mark 5 6 3 0
I want my result to count the cells with a value and group them on name Like this:
Name A B C D
Bert 2 1 0 1
Mark 3 2 3 0
COUNT() gives back every row from a name.
SUM() adds up the values
I have tried many things with sub queries and combined functions, but up until now with no results.
How do I do this ?
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Mar 21, 2015
select statement joining file1 to file2. File 1 may have 0, 1, or many corresponding rows in file2. I need to count the corresponding rows in table2. Table2 also has a Boolean column and I need to count the number of rows where it is true. So I need to count the total number of matching rows and the count of those that are set to true. This is an example of what I have so far. I had to add each column being selected into a Group by to make it work, but I do not know why. Is there some other way this should be set up.
SELECT c.CarId, c.CarName, c.CarColor, COUNT(t.TrailerId) as trailerCount, (add count of boolian, say t.TrailerFull is true)
FROM Car c
LEFT JOIN Trailer t on t.CarId = c.CarId
GROUP BY c.CarId, c.CarName, c.CarColor
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Jun 10, 2006
Hi All
I have:
select prod_id , count(prod_id)[Number of Times]
from orders_tbl
group by prod_id
order by 1;
I get a result however, how do sum up the total number of times ?
Thanks
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Aug 18, 2006
Hello all.
I am looking to select all from a particular row where one field occurs more than once. The code i'm, trying isnt working:
select * from U_DATAFILE
where count(group by VIEW_ACTION)>1
Thanks all :)
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Feb 15, 2007
is there a way to count the sort of a query and still get the values in the query
columns1, column2, column3 are the same for 5 rows so give the values of each column and then count =5
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