Using Alias Column Names For Calculations

Oct 3, 2007

Hi,
I want to have a query where in i can use alias column names in the same query.
like eg
select 1 as 'a', 2 as 'b', a+b as 'c'

note that this query is getting big and is using sub queries.


Kindly help.

Thanks

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Trying To Display Alias Field Names

Nov 20, 2006

Hello All,

I have the following code:


USE MLS
select sc.name,f.field#,fdesc,flong
from sysobjects so join syscolumns sc
on so.id = sc.id
join fld f
on f.field# = replace(sc.name,'_','')
where so.name = 'dbo.tbl_MLS_Leads_Trans'


I am trying to get the description which is flong and I get the following error message:

Msg 208, Level 16, State 1, Line 2
Invalid object name 'fld'.

What am I doing wrong?

TIA

Kurt

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Aug 14, 2006

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Jan 22, 2004

Hi

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Jan 15, 2008

ALTER procedure [dbo].[MyPro](@StartRowIndex int,@MaximumRows int)
As
Begin
Declare @Sel Nvarchar(2000)set @Sel=N'Select *,Row_number() over(order by myId) as ROWNUM from MyFirstTable Where ROWNUM
Between ' + convert(nvarchar(15),@StartRowIndex) + ' and ('+ convert(nvarchar(15),@StartRowIndex) + '+' + convert(nvarchar(15),@MaximumRows) + ')-1'
print @Sel
Exec Sp_executesql @Sel
End
 
--Execute Mypro 1,4        --->>Here I Executed
 Error
Select *,Row_number() over(order by myId) as ROWNUM from MyFirstTable Where ROWNUM
Between 1 and (1+4)-1
Msg 207, Level 16, State 1, Line 1
Invalid column name 'ROWNUM'.
Msg 207, Level 16, State 1, Line 1
Invalid column name 'ROWNUM
Procedure successfully created but giving error while Excuting'.
Please anybody give reply
Thanks
 

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Jun 5, 2006

Timespan = 30 days
Start Date = January 1st
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Jul 23, 2005

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Apr 9, 2008

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Apr 10, 2008

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E.g., (this a contrived example but you get the idea)

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Note how the "speed" alias is used in the definition of "acceleration" alias but this doesn't work.

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Jul 23, 2005

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Apr 12, 2015

I am trying to create a simple query like this -

SELECT
Column_1,
Column_2,
Column_3,
10*Column_1 AS Column_4,
10*Column_2 AS Column_5,

-- I am not being able to understand how to do this particular step Column_1*Column_5 As Column_6

FROM Table_1

First 3 Columns are available within the Original Table_1

The Column_4 and Column_5 have been created by me, by doing some Calculations related to the original columns.

Now, when I try to do FURTHER CALCULATION on these newly created columns, then SQL Server does not allows that.

I was hoping that I will be able to use the Newly Created Columns 4 and 5 within this same query to do further more calculations, but that does not seems to be the case?

If I have to create a new column by the name of Column_6, which is actually a multiplication of Original Column_1 and Newly Created Column_5 "I tried this - Column_1*Column_5 As Column_6", then what is the possible solution?

I have tried to present my problem in the simplest possible manner. The actual query has many original columns from Table_1 and many Calculated columns that are created by me. And now I have to do various calculations that involve making use of both these type of columns.

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Mar 2, 2005

In SQLServer I can't change my SQL column name.

But I need to see another field name in query tool (Excel)

How can I do that (alias..., description ?

Thanks

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Aug 30, 2006

Hello everyone.

I was wondering if there is a way that you can set the alias name of a column to a value that resides in another table instead of the alias being a static value that you type in.

If anyone has any ideas on ho i can accomplish this i would greatly appreciate it.

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Apr 12, 2015

I am new to SQL Programming. I am learning the basics. I am trying to create a simple query like this -

SELECT
Column_1,
Column_2,
Column_3,
10*Column_1 AS Column_4,
10*Column_2 AS Column_5,

-- I am not being able to understand how to do this particular step Column_1*Column_5 As Column_6

FROM Table_1
First 3 Columns are available within the Original Table_1
The Column_4 and Column_5 have been created by me, by doing some Calculations related to the original columns.

Now, when I try to do FURTHER CALCULATION on these newly created columns, then SQL Server does not allows that.

I was hoping that I will be able to use the Newly Created Columns 4 and 5 within this same query to do further more calculations, but that does not seems to be the case, or am I doing something wrong here ?

If I have to create a new column by the name of Column_6, which is actually a multiplication of Original Column_1 and Newly Created Column_5 "I tried this - Column_1*Column_5 As Column_6", then what is the possible solution for me ?

I have tried to present my problem in the simplest possible manner. The actual query has many original columns from Table_1 and many Calculated columns that are created by me. And now I have to do various calculations that involve making use of both these type of columns.

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Feb 12, 2007

I'm using SQL Server 2005 and are having some troubble with sorting a paged result set. I'm using the OVER Clause to achieve the sorting and paging and have the following query:1 WITH ProjectList AS
2 (
3 SELECT
4 Id,
5 Name,
6 Created,
7 (SELECT COUNT(*) FROM UserProjects WHERE ProjectId = p.Id) AS NumberOfUsers,
8 ROW_NUMBER() OVER (ORDER BY Id) AS 'RowNumber'
9 FROM Projects p
10 )
11 SELECT *
12 FROM ProjectList
13 WHERE RowNumber BETWEEN 50 AND 60;

This works fine, and give me the results i want. The problem occurs when I want to sort by "NumberOfUsers" which is the results of a sub query.When i say "ORDER BY NumberOfUsers" instead of Id on line 8, I get the following error:
Msg 207, Level 16, State 1, Line 10Invalid column name 'NumberOfUsers'.
I read this in the documentation:
When used in the context of a ranking window function, <ORDER BY Clause> can only refer to columns made available by the FROM clause. An integer cannot be specified to represent the position of the name or alias of a column in the select list. <ORDER BY Clause> cannot be used with aggregate window functions.
So this means that what I'm trying to do is not possible. How can I then sort by NumberOfUsers? Is there any other way to achieve this

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Oct 31, 2005

Hi All,
I am currently transferring my Access application to SQL Server. Access allows you to declare and use aliases in the query at the same time.

e.g.
Select field1 as Alias1, field2 as Alias2, Alias1 & " " & Alias2 as Alias3 from table1;

In Access the above query will execute perfectly, no problem. However in SQL Server, if you try to run the same query it will give an error "Invalid column name Alias1" meaning that SQL Server is searching for Alias1 as a field in the table, not as an alias from the query.

My question is does SQL Server have a facility to declare and use alias directly as in Access and if no, is there a workaround?

Thanks for your time.

Regards:
Prathmesh

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Nov 25, 2006

Hi,

I have a question.

select name, count, 1 Aa c1, 2 as c2, c1+c2 As total
from table1

From this example, the program will give out error message,
c1, and c2 are invalid columns.

In MS Access, it works. But, SQL query Analayer doesn't work this statement.
So, does query analayzer handle this case?

Thanks.

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Feb 20, 2004

I have a web application where I would like to return a dynamic column name using aliasing. below is an example:

select hours as 'Fri<BR>' + cast(Day(getDate()) as varchar(2)) from todayshours

I get an error trying to do concatenation as part of the alais. Any ideas?

Luke
lgraunke AT 4invie.com

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Jul 20, 2005

Is there a way to use a column alias in an another calculation within thesame query? Since I am using some long and complex logic to compute total1and total2, I don't want to repeat the same logic to compute the ratio ofthose two columns. I know that I can do a nested query, but that seems toolengthy as well since I actually have many, many columns.selecttotal1 = sum(case(long complex logic)),total2 = sum(case(another long complex logic)),ratio = total1/total2

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Jun 28, 2006

Is there a way to select a column as an alias using a variable for the alias? something like this:

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Jun 12, 2008

What I need to do is to create 3 columns with 3 different aliases from the same table that will return all the values during the following conditions:

when pricelist = 1

when pricelist = 2

when pricelist = 3


pricelist
--------
1
2
3


Price
--------
912 -- (linked with 1)
234 -- (linked with 3)
56 -- (linked with 2)
3245 -- (linked with 3)
234 -- (linked with 1)
65 -- (linked with 2)

these 2 columns are in the same table^^

so what i want my query to generate is:

Price1
--------
912
234

Price2
--------
56
65

Price3
--------
234
3245

Any help is apprecieated, thanks

if the above does not make sense to you maybe this will:
"can you make 3 aliases of the same column and only display the rows inside each column where pricelist = 1 for the 1st alias... where price = 2 for the 2nd alias...where pricelist = 3 for the 3rd alias"

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Jun 26, 2007

Hi,I got 'Invalid Column Name NewCol1' when I query the following:Select col1, col2, (some calculation from the fields) as NewCol1,(some calculation from the fields) as NewCol2,NewCol1 = NewCol2 fromTable1 inner join Table2 inner join Table3....Where.....Basically, I want to find out if NewCol1 = NewCol2 after thecalculationAny advice?Thanks in advance. Your help would be greatly appreciated.Wanda

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Feb 22, 2007

Can We Compare alias of column(Derived column) within the same query??

Ex:

Select (abc+50)*100 as 'WXY' from XYZ where WXY>150

.....

I cant execute such statement ... Can anyone help me how to comapre the alias within the same query..?

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Jul 13, 2005

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If InStr(Trim(searchClientNameText), "%")>0 Then            searchStatement = "WHERE ClientName LIKE '" & searchClientNameText & "'"Else             searchStatement = "WHERE ClientName = @searchClientNameText"End If
Dim queryString As String = "SELECT RTrim([People].[Given_Name])"& _"+ '  ' + RTrim([People].[Family_Name]) AS ClientName, [Event].[NumEvents],"& _"[Event].[Event_Ref]"& _"FROM [Event] INNER JOIN [People] ON [Event].[APP_Person_ID] = [People].[APP_Person_ID]"& _searchStatement + " "& _"UNION SELECT [Bus].[Organisation_Name],"& _"[Event].[NumEvents], [Event].[Event_Ref]"& _"FROM [Bus] INNER JOIN [Event] ON [Bus].[APP_Organisation_ID] = [Event].[APP_Organisation_ID] "& _searchStatement
..........End Function

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Aug 29, 2007

I have an Access database, that is in connection with sql server.
On my computer with access2007 i have no problems with viewing tables and stuff.

But on other computers with access2003 it gives an error when i use this query:

INSERT INTO [tbl_sap-staffel] ( ItemCode, CardCode, [Amount-0], [Price-0], [Amount-1], [Price-1], [Amount-2], [Price-2] )
SELECT [qry_sap-spp-0].ItemCode, [qry_sap-spp-0].CardCode, [qry_sap-spp-0].Amount, [qry_sap-spp-0].Price, [qry_sap-spp-1].Amount, [qry_sap-spp-1].Price, [qry_sap-spp-2].Amount, [qry_sap-spp-2].Price
FROM ([qry_sap-spp-0] LEFT JOIN [qry_sap-spp-1] ON ([qry_sap-spp-0].ItemCode = [qry_sap-spp-1].ItemCode) AND ([qry_sap-spp-0].CardCode = [qry_sap-spp-1].CardCode)) LEFT JOIN [qry_sap-spp-2] ON ([qry_sap-spp-1].ItemCode = [qry_sap-spp-2].ItemCode) AND ([qry_sap-spp-1].CardCode = [qry_sap-spp-2].CardCode);


It says:
ODBC call failed
[Microsoft][ODBC SQL Server Driver][SQL Server]
The column prefix 'MS1' does not match with a table name or alias name used in the query.
The column prefix 'MS2' does not match with a table name or alias name used in the query.

And it will give this error 6 times.

I dont know what to do.
Can anybody help me?

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Jan 24, 2012

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Code:
SELECT STUSCHEDULE.[School_Year]
,STUSCHEDULE.[School_Number]
,STUSCHEDULE.[Student_ID]
,STUSCHEDULE.[CourseID]

[Code] ....

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May 16, 2012

I am working on migrating view from Ms Access to SQL server. I got a query and modified it by removing IIF by CASE WHEN. I landed into following query:

Code:
SELECT CASE WHEN <CONDITION>
THEN DATEADD(YYYY,YR1,DATEADD(D,DAY1,TXNDATE))
ELSE 0
END AS CurrentDateAdj,
Year(CurrentDateAdj) + '_' + 'some text and processing')
FROM INCREMENTDATATABLE;

Here DAY1 and YR1 are from INCREMENTDATATABLE.

I am getting error that CurrentDateAdj not found. How can I fix this?

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Mar 17, 2004

Hi Guys,

I have a program that connects to SQLServer 2000 through ADO connection.

the program executes the following query:

SELECT ax.AccNo,
(SELECT Accounts.ProductCode FROM Accounts WHERE h.ID=Accounts.ID) As Product
FROM dbo.History h LEFT OUTER JOIN dbo.AccXRef ax ON h.ID= ax.ID LEFT OUTER JOIN dbo.States ON h.[HistoryItemsub-Type] = dbo.States.Type LEFT OUTER JOIN dbo.CustXRef cx ON h.CustomerNo = cx.CustomerNo
WHERE HistoryItemDate <= getdate() ORDER BY HistoryItemDate ASC



This query works in th program and in Query Analyer on my machine.
However, On a different Machine (and different SQLServer) the query works in Query Analyser but does not work in the program, the following exception is thrown:

The column prefix 'h' does not match with a table name or alias name used in the query


Any help is greatly appreciated..

thanx in-advance,

TNT:)

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Sep 16, 2014

I want to create column name dynamically in select list.

create table #temp(name varchar(10), sale int)
insert into #temp values('john',1000)
insert into #temp values('Mike',500)
insert into #temp values('Abhas',200)
select name,sale as sale from #temp

Now i want change column alias only , not value. I need to concatenate sale with year value of getdate(). i.e. column header concatenation only, not a output value.

so my output would be as

name Sales2014
john 1000
Mike 5000
Abhas 2000

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May 27, 2008

Hello Everyone,

I am creating a Metadata management application for a business intelligence platform on SQL Server 2005.

For this purpose, I've set out to consolidate all DB-object metadata (Databases, Tables, Columns, Views) into a single repository that business users can browse through. It has been fairly straightforward so far, but I've hit a wall in the views department.

In fairly simple terms, I want to know which physical columns are selected in a view, with the twist of also knowing the columns' alias. This seems to be impossible as far as I can tell, it is easy enough to get both of these independently, but I can't figure out how to connect an alias to an actual column.

(I prefer to use the metadata catalog views to the INFORMATION_SCHEMA as I need to know the object_id's)

Aliases are easy enough to obtain:

select object_id, column_id, name
from sys.columns
where object_id = object_id('SomeViewsName');


As are the 'physical' columns:
SELECT
t.object_id as TABLE_OID,
c.column_id as COLUMN_OID,
c.name
FROM
sys.views v
JOIN sys.sql_dependencies d
ON d.object_id = v.object_id
JOIN .sys.objects t
ON t.object_id = d.referenced_major_id
JOIN sys.columns c
ON c.object_id = d.referenced_major_id
AND c.column_id = d.referenced_minor_id
WHERE
d.class < 2 AND
v.name = 'SomeViewsName';


As I've said before, the problem is joining these two datasets. One of the problems associated with this is that the latter query also returns columns used in JOIN statements, even if they are not projected in the select part of the view definition.

Ultimately I'd like to get this result:

Alias used in View, physical table's object id, physical column's id

Am I missing something?

Thank you very much in advance for your help.

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Aug 2, 2007

Hi!

I have created a view and one of the columns in the view has an alias assigned to it.

I'm able to read the metadata from INFORMATION_SCHEMA.VIEW_COLUMN_USAGE and also lookup
from which table each column in the view orginated from except for the column that has an alias assigned to it.

Is there any other way to lookup a column that has an alias assigned to it?


Thanks alot!

Adam

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We will be moving 2 different databases (SS2005 & SS2008) to a new SS2014 SQL Server.  Currently our codes looks something like Server1DBInstance1... & Server2DBInstance2... Is it possible to move the objects from these 2 instances to Server3DBInstance3 and then use an alias to reference the objects?  Or does Server3 need to have DBInstance1 & DBIstance2?  Basically, is the alias just for the database or for the instance too?  Can I create an alias "Server1DBInstance1' on Server3DBInstance3 and assign objects to that alias?

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