How To Calculate Avg(footer) Of Computed Avgfiled

May 5, 2008

Hi all,
i am using sql server 2005.
let me explain the scenario.
i have report where i bring perticular employee totalcall and workeddays(from sp) then in third field i wrote an expresion to evaluate avg call that is totalday/workeddays and all the three field i displayed in table [b]Now requirment is in tablefooter i need to display avg of above calculated avg call

please suggest some idea
thank you.

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How Do I Calculate A Sum From A Table Group With The Footer

Mar 28, 2008



I have a sum , which is filtered within its table group, and then i have a fields in the footer. How would i aggregate these too together and use the result in another row within the footer.

I tried entering this:


=SUM(Fields!Period_1.Value,"table2_Period") / Max(Fields!Goal_1.Value)

but i get an error:


[rsInvalidAggregateScope] The Value expression for the textbox €˜textbox129€™ has a scope parameter that is not valid for an aggregate function. The scope parameter must be set to a string constant that is equal to either the name of a containing group, the name of a containing data region, or the name of a data set.

Build complete -- 1 errors, 0 warnings



what am i doing wrong, please help!

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Page Totals: Table Footer Or Page Footer?

Nov 28, 2007



I currently have an Ungrouped Dataset being displayed in a Table. One of the columns include AMOUNT.
This is an example of what my report looks like atm:
==================
**Report Name**

No Name Amount

Signed By XXXX
==================

I would like to display a SUBTOTAL of the Amounts for each page and, on the final page, a TOTAL of the Amounts.
Yes the Last Page's SubTotal and Total will be the same.
Looking like:
===============================

pg1
**Report Name**

No Name Amount
Sub Total Amount
Signed By XXXX

(lastpage)
**Report Name**

No Name Amount





(<-----no huge spaces between Table/Subtotal)
Sub Total Amount



Total Amount

Signed By XXXX


=================================

Issues:
I've found a way to get a Page's SubTotal, but the way I found requires this to be put in a field on the Page Footer Section.
This means that on the final page, the SubTotal will be at the top of the Page Footer and not neccessarily directly beneath the table.

So:
1. Is there a way to move the Page Footer so that its printed DIRECTLY under neath the Page Body instead of at the bottom of the Page?
2. If not, is there a way to have the SubTotal of each Page and a Final Page Total in the Page Body section.
Cheers.

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Sep 5, 2007

Hi all,

I have a table with 3 computed columns, the first two reference a function for there value. The last computed column should be total of the other computed columns, however when trying to write the formula for this column SQL Server rejects it.

Am i correct in thinking it is not possible to reference other computed columns in a computed column's forumla.

My current work around is to call the functions again that the other computed columns use to generate the total, though this seems to me like a performance issue.

Could anyone offer some advise on my situation.

Any input apreciated.

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Jul 4, 2007

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Regards
Clive

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I have a table with fields called fname (First Name) and lname (Last Name). I need the user´s email thai is compose from lname and fname:
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Is there any difference between creatig this computed column ia a table or in a view in SQL Server 2000?

I can do:

1. CREATE TABLE Users(
fname varchar(20),
lname varchar(20),
email as LOWER(LEFT (fname,1) + lname) )

Or

2. CREATE TABLE Users (
fname varchar(20),
lname varchar(20))

CREATE VIEW Vw_users (fname, Lname ,
email)
AS
SELECT fname, Lname ,
LOWER(LEFT (fname,1) + lname) )


Is one of them is better?

Paulo

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i have a table that contains 2 columns

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-- --
x 1
y 2
z 1
x 2
z 1
j 1
k 2

i want to make a query that will check for dinstinct x what B values it has Ex. It will show result like this

result
A B
-- --
X 1 and 2
Y 2
z 1
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Nov 6, 2006

Dear all,
Pls help me with this
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Jul 20, 2005

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Jul 20, 2005

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Sep 25, 2006

Hi,

Consider the following example

create table sample

(col1 int,

col2 int ,

col3 AS col1 + col2) PERSISTED NOT NULL)

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May 22, 2008



Hi,

i have to use a datetime field in all the tables in a database as a updated timestamp.
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can i use COMPUTED column to acheive this ?

Please help me..thnks in advance..

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Jun 25, 2007

I have a SQL table that maintains a field on the status of a report being completed.
I have in the record the date the report is due (DateDue)
I also have a field called DaysLate which I have set to be a calculated field with formula:
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Thsi works but when the report is *not* late I'd like this to be null  is there I way I can do this conditional calculation in a calculated field?
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Jul 8, 2004

Hi,

What is the difference between a computed column and a UDF?
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thanks,
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Jun 11, 2003

I have a view that has 2 columns. The first column is associated with a function for the Units. The second column calculates the Market Value:

View
====
Col1: Unit = get_number_of_units()
Col2: MV = get_number_of_units() * get_unit_value()

I need to call get_number_of_units() twice in the view. Is it possible to changes Col2 to something like: MV = Col1 * get_unit_value()?

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Thanks.

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Feb 27, 2008

somehow I am not able to figure this out.

How do I change a computed column using the ALTER TABLE ALTER COLUMN... command?

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May 19, 2008

Hi,

I'm having a problem with a computed field in a table. I have a stored procedure that inserts a row into a table and returns the id and the computed value.
The computed colmn is returned as a decimal (29,6) but for some reason the value is returned with no decimals (confirmed by the Profiler).
The value is calculated and displayed in the database properly with decimals. Also, Is Persisted is OFF.

Below is the stored procedure, computed column foruma (both give same result), and the profiler trace.

Thanks

Stored Procedure
================================================== ==============
ALTER PROCEDURE [Purchasing].[ntp_PurchaseOrderDetail_Insert]
(
@PurchaseOrderDetailId int OUTPUT,
@PurchaseOrderId int ,
@OrderQty decimal (11, 4) ,
@VendorProductId int ,
@Description nvarchar (255) ,
@UnitPrice decimal (18, 6) ,
@PackingQty decimal (14, 4) ,
@DueDateValue nvarchar (50) ,
@ModifiedDate datetime ,
@IsUnitPriceManual bit ,
@LineTotal decimal (29, 6) OUTPUT
)
AS
INSERT INTO [Purchasing].[PurchaseOrderDetail]
(
[PurchaseOrderID]
,[OrderQty]
,[VendorVendorProductID]
,[Description]
,[UnitPrice]
,[PackingMethod]
,[PackingQty]
,[DueDateValue]
,[ModifiedDate]
,[IsUnitPriceManual]
)
VALUES
(
@PurchaseOrderId
,@OrderQty
,@VendorVendorProductId
,@Description
,@UnitPrice
,@PackingMethod
,@PackingQty
,@DueDateValue
,@ModifiedDate
,@IsUnitPriceManual
)

-- Get the identity value
SET @PurchaseOrderDetailId = SCOPE_IDENTITY()

-- Select computed columns into output parameters
SELECT
@LineTotal = [LineTotal]
FROM
[Purchasing].[PurchaseOrderDetail]
WHERE
[PurchaseOrderDetailID] = @PurchaseOrderDetailId


Computed Column Formula
================================================== ==============
isnull(CONVERT(DECIMAL (29,6),[OrderQty]*([UnitPrice]*[PackingQty])),0.000000)
or
isnull([OrderQty]*([UnitPrice]*[PackingQty]),0.000000)

Profiler Trace
================================================== ==============
declare @p1 int
set @p1=115
declare @p16 numeric(29,0) <- should be numeric(29,6)
set @p16=5 <- value should be 5.259200
exec Purchasing.PurchaseOrderDetail_Insert @PurchaseOrderDetailId=@p1 output,@PurchaseOrderId=68,@OrderQty=4,@VendorProd uctId=28,@Description=N'93678975 - GL-2222',@UnitPrice=0.657400,@PackingMethod=N'Bags (2)',@PackingQty=2.0000,@DueDateValue=NULL,@Modifi edDate=''2008-05-19 15:06:37:610'',@LineTotal=@p16 output
select @p1, @p16

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Dec 13, 2012

I have a question about Computed Column Specification which you can specify as a formula for each column inside a table.

I have now columns named Age and Class.

Classes are "Kids" (ID #1) , "Junior" (ID #2) and "Senior" (ID #3)
Kids, which is for age of 6 till 12
Junior, which is for 12 till 16
Senior, 16 and above.

I have already searched for hours (I really did) on the internet for a solution, but ended with more questions because of the complicated solutions.

Now the Age is shown as a result of a formule of DOB (Date of Birth column), now I want the exact same thing, but the age must specify which Class the user is in.

Example, when I add a user with the birthdate 25/03/1988 (DD/MM/YYYY) he/she gets 24 as age.

With this formula : (datediff(year,[age],getdate()))

Now I want that the user gets "Senior" as Class (same table).

Senior is ID 3 in this case.

Now I do know how Case, When and Then works, but the validation fails. After reading some forums I understood that I should use a create function method. I am not really experienced with creating functions. Also the coding looks more different as I am used to. How to link the Computed Column to a created formula.

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Dec 28, 2003

dear sirs,
this is my first contribution at you reputable forum ..

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the trigger is as follows
========================================
create trigger tr_update_loan
on salary_month
for update
as
if update(sal_month)
begin
update hr_emp_loan
set payed = payed + one_loan , rest = rest - one_loan
end
=========================================
it returned an error "Column 'sal_month' cannot be used in an IF UPDATE clause because it is a computed column."
I tried to not to use if update() but when I change the date in the calender it is not updated in the other table

can any one help my in this because I'm doing my graduation project

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Feb 18, 2004

I am currently developing a stored procedure that includes a number of computed fields. Is it possible to reference a computed value, (eg. FLdA), or do I need to CREATE a temp file and then reference the FldA and FldB values. I have simplified my code, it is much more extensive in that there are numerous WHEN clauses attached to each FldA and FldB computation.

SELECT FldA = CASE
WHEN .... THEN CurQty * 1.5
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need help ,

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if i run the above query it says

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this executes fine if i use Access but not in SQL Server.

can anybody say what might be the problem and how i can solve it.

regards

Rajesh :)

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May 19, 2008

hi
i want to create a table that has a computed column like this :
create table resources(
id int identity(0,1) primary key,
currentDate int not null,
currentMonth int default 0,
monthBefore as (currentMonth - (select top 1 currentMonth from resources where (currentDate - resources.currentDate) = 1)))

as u can see, monthBefore is computed column, and i want get currentMonth value of previous month, for this work, i define a column as currentDate that hold only year+month (like 971,082,083,...) and by this expression, i want to get currentMonth of previous record (previous month), but the following error has shown me :
Subqueries are not allowed in this context. Only scalar expressions are allowed.
how to solve this problem to get currentMonth of previous record ?
thanks

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If i've misunderstood what I am meant to do somebody please please tell me. Thanks

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Oct 1, 2007

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for example if is quantity, it puts as if I would have 1 quantity,
so it's either null, or whathever number I put visides -1 or 0
how can I make it be 0 as defult?
I'm using it to add and substract with computed column, formula;
and the problem is that if it's the first time it's used it does not add or substract, becsause it does not add null with a number, if it has 0 than it works,
whata I had to do is add it manually, but of course it doesn't suppoesed to be that way
any suggestions will be appriciated:

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Jul 23, 2005

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Jul 28, 2006

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Sep 10, 2006

Hello,I want to assign a column a computed value, which is the multiplicationof a value from the table within and a value from another table.How can I do that?Say the current table is A, column1; and the other table is B, column3.What should I write as formula?I tried someting like;column1 * (SELECT column3 FROM B WHERE A.ID = B.ID)but it didn't work.

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May 19, 2008

hi
i want to create a table that has a computed column like this :

Code Snippetcreate table resources(id int identity(0,1) primary key,currentDate int not null,currentMonth int default 0,monthBefore as (currentMonth - (select top 1 currentMonth from resources where (currentDate - resources.currentDate) = 1)))

as u can see, monthBefore is computed column, and i want get currentMonth value of previous month, for this work, i define a column as currentDate that hold only year+month (like 971,082,083,...) and by this expression, i want to get currentMonth of previous record (previous month), but the following error has shown me :

Code SnippetSubqueries are not allowed in this context. Only scalar expressions are allowed.
how to solve this problem to get currentMonth of previous record ?
thanks

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Dec 26, 2007

Is it possible to use a cursor in computed column?

I have two table (Table1 and Table2). Table 2 is child of Table 1.

Table 2 has more than one record for each record in table 1. What I want is, to concat records from table 2 and show it as a column value for Table1.

e.g.


Code Block
Table 1:
Col1 Col2
1 ABC
1 DEF

Table 2
T1Col1 Col2
1 A
1 -
1 B
1 1
1 -
1 C
I want to see the Results as
Table 1
Col1 Col2 Col3
1 ABC A-B1-C


Is it possible to add computed column for the table1 to get the result as shown in above block.

Thanks

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Sep 25, 2007



Hello everybody!

I have question about indexed and not indexed Persisted columns on sql server 2005. It's a bug?

First?, my version of SQL Server is
Microsoft SQL Server 2005 - 9.00.3186.00 (Intel X86) Aug 11 2007 03:13:58 Copyright (c) 1988-2005 Microsoft Corporation Developer Edition on Windows NT 5.1 (Build 2600: Service Pack 2)


Now I create two tables and try four select queries:


Code Snippet
SET ANSI_NULLS ON
SET ANSI_PADDING ON
SET ANSI_WARNINGS ON
SET ARITHABORT ON
SET CONCAT_NULL_YIELDS_NULL ON
SET NUMERIC_ROUNDABORT OFF
SET QUOTED_IDENTIFIER ON
GO
create table t1 (id int primary key, id_bigint as cast(id as bigint))
GO
create table t2 (id int primary key, id_bigint as cast(id as bigint) persisted)
GO
select * from t1 -- (1)
-- Clustered index scan with two times Compute Scalar
GO
select * from t2 -- (2)
-- Clustered index scan with one times Compute Scalar
GO
create index IX_t2 on t2 (id_bigint)
GO
select * from t2 -- (3)
-- Index Scan with one times Compute Scalar
GO
select * from t2 where id_bigint = 0 -- (4)
-- Index Seek with one times Compute Scalar
GO
drop table t1
GO
drop table t2
GO
SET ANSI_PADDING OFF



1. I don't understand why access to computed column raise scalar computation wto times?
2. I don't understand why access to persisted computed column raise any scalar computation?
3. I don't understand why access to persisted computed column over index required any scalar computations?

Can anyone from Microsoft SQL Server Team told me about this mistake?
It's a BUG or I incorrect understand value of the "PERSISTED" word?


--
Thanks with avanced.
WBR, Roman S. Golubin
grominc[at]gmail.com

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