How Do I Use A Variable To Specify The Column Name In A Select Statement?
Nov 10, 2006How do I use a variable to specify the column name in a select statement?
declare @columnName <type>
set @columnName='ID'
select @columnName from Table1
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Random Selection From Table Variable In Subquery As A Column In Select Statement
Nov 7, 2007Consider the below code: I am trying to find a way so that my select statement (which will actually be used to insert records) can randomly place values in the Source and Type columns that it selects from a list which in this case is records in a table variable. I dont really want to perform the insert inside a loop since the production version will work with millions of records. Anyone have any suggestions of how to change the subqueries that constitute these columns so that they are randomized?
SET NOCOUNT ON
Declare @RandomRecordCount as int, @Counter as int
Select @RandomRecordCount = 1000
Declare @Type table (Name nvarchar(200) NOT NULL)
Declare @Source table (Name nvarchar(200) NOT NULL)
Declare @Users table (Name nvarchar(200) NOT NULL)
Declare @NumericBase table (Number int not null)
Set @Counter = 0
while @Counter < @RandomRecordCount
begin
Insert into @NumericBase(Number)Values(@Counter)
set @Counter = @Counter + 1
end
Insert into @Type(Name)
Select 'Type: Buick' UNION ALL
Select 'Type: Cadillac' UNION ALL
Select 'Type: Chevrolet' UNION ALL
Select 'Type: GMC'
Insert into @Source(Name)
Select 'Source: Japan' UNION ALL
Select 'Source: China' UNION ALL
Select 'Source: Spain' UNION ALL
Select 'Source: India' UNION ALL
Select 'Source: USA'
Insert into @Users(Name)
Select 'keith' UNION ALL
Select 'kevin' UNION ALL
Select 'chris' UNION ALL
Select 'chad' UNION ALL
Select 'brian'
select
1 ProviderId, -- static value
'' Identifier,
'' ClassificationCode,
(select TOP 1 Name from @Source order by newid()) Source,
(select TOP 1 Name from @Type order by newid()) Type
from @NumericBase
SET NOCOUNT OFF
Cannot Set A Variable From A Select Statement That Contains A Variable??? Help Please
Oct 4, 2006I am trying to set a vaiable from a select statement
DECLARE @VALUE_KEEP NVARCHAR(120),
@COLUMN_NAME NVARCHAR(120)
SET @COLUMN_NAME = (SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'CONTACTS' AND COLUMN_NAME = 'FIRSTNAME')
SET @VALUE_KEEP = (SELECT @COLUMN_NAME FROM CONTACTS WHERE CONTACT_ID = 3)
PRINT @VALUE_KEEP
PRINT @COLUMN_NAME
RESULTS
-------------------------------------------------------------------------------------------
FirstName <-----------@VALUE_KEEP
FirstName <-----------@COLUMN_NAME
SELECT @COLUMN_NAME FROM CONTACTS returns: FirstName
SELECT FirstName from Contacts returns: Brent
How do I make this select statement work using the @COLUMN_NAME variable?
Any help greatly appreciated!
Variable In A Select Statement
Sep 6, 2006Is there anyway to use a variable to define a column in a select statement. I can put the variable in but I'm sure it will be read as a literal instead of the column.
select @column_name from table
Variable For The Table Name In A SELECT Statement.
Apr 23, 2007Hi,I'm trying to dynamically assign the table name for a SELECT statement but can't get it to work. Given below is my code: SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE PROCEDURE GetLastProjectNumber (@DeptCode varchar(20))
AS
BEGIN TRANSACTION
SET NOCOUNT ON
DECLARE @ProjectNumber int
SET @ProjectNumber = 'ProjectNumber' + REPLACE(CONVERT(char,@DeptCode),'.','')
SELECT MAX(@ProjectNumber)
FROM 'tbl_ProjectNumber' + REPLACE(CONVERT(char,@DeptCode),'.','');
END TRANSACTION Basically, I have a bunch of tables which were created dynamically using the code from this post and now I need to access the last row in a table that matches the supplied DeptCode. This is the error I get:Msg 102, Level 15, State 1, Procedure GetLastProjectNumber, Line 29Incorrect syntax near 'tbl_ProjectNumber'. Any help would be appreciated.Thanks.
Using A Variable For Tablename In Select Statement?
Sep 19, 2007I have a stored procedure that accepts the table name as a parameter. Is there anyway I can use this variable in my select statement after the 'from' clause. ie "select count(*) from @Table_Name"?
When I try that is says "Must declare the table variable @Table_Name". Thanks!
SQL Select Statement With A 'string' Variable?
Apr 16, 2008I'm trying to add a 'change password' control to my site and seem to be having some issues. I have code that works if I statically define what user is displayed on the form, but I cant get it to detect the 'authenticated' user and show them the reset for for that ID.If I take the "+ myid" out of the select statement and just define the username statically the form works properly. Error:System.Data.SqlClient.SqlException: The column prefix
'System.Security.Principal' does not match with a table name or alias name used
in the query. Here's a piece of the code that is supposed to detect the current logged in user. However, it gives the error. (some of the code may be redundant but its not causing issues that I can tell) public void InitPage() { IPrincipal p = HttpContext.Current.User; String myid = HttpContext.Current.User.ToString(); SqlServer sqlServer = new SqlServer(Util.SqlConnectionString()); DataTable dt; SqlConnection cnn = new SqlConnection(ConfigurationManager.ConnectionStrings["myconnection"].ConnectionString); SqlDataAdapter cmd1 = new SqlDataAdapter("select * from USER WHERE USER_NAME = "+ myid, cnn); DataTable UIDtable = new DataTable(); cmd1.Fill(UIDtable); User_Id.Value = UIDtable.Rows[0]["ID"].ToString(); dt = sqlServer.USER_SELECT(Util.SiteURL(Request.QueryString["Pg"].ToString()), User_Id.Value);
Variable Not Holding Value For Select Statement
Dec 7, 2005this querry below works perfect when i assign the us.UserID = 29 but i need to be able to use the @UsersMaxID variable..... when i debug all of my values are right where they need to be... even this on ((( @UsersMaxID ))) but for some reason it will not work with the next select statement...
can someone make the pain go away and help me here..??
erik..
GOSET ANSI_NULLS ON GO
ALTER PROCEDURE AA
ASDECLARE @GenericColumn Varchar (200) DECLARE @GenericValue Varchar (200)
SET @GenericColumn = 'FirstName'SET @GenericValue = 'Erik'
DECLARE @SQL NVARCHAR(4000) DECLARE @UserID INT DECLARE @UsersMaxID INT DECLARE @MaxID INT
declare @tempResult varchar (1000)
-------------------------------------------Define the #Temporary Table----------------------------------------------CREATE TABLE #UsersTempTable ( ID int IDENTITY PRIMARY KEY,
UserID [int], FirstName [varchar](30), LastName [varchar](30), CompanyName [varchar](200), Address1 [varchar](75), Address2 [varchar](75), City [varchar](75),ActiveInd [int], Zip [varchar](10), WkPhone [varchar](12),HmPhone [varchar](12), Fax [varchar](12), Email [varchar](200), Website [varchar](200), UserType [varchar](20),Title [varchar](100),Note [text], StateCD [char](2), CountryCD [char](2), CompanyPhoto [varchar](50), CompanyDescr [varchar](2000)) ---------------------------------------Fill the temp table with the Customers data-----------------------------------SET @SQL = 'INSERT INTO #UsersTempTable (UserID, FirstName, LastName, CompanyName, Address1, Address2, City, ActiveInd, Zip, WkPhone, HmPhone,Fax, Email, Website, UserType, Title, Note, StateCD, CountryCD, CompanyPhoto, CompanyDescr)
Select Users.UserID, Users.FirstName,Users.LastName, Users.CompanyName, Users.Address1, Users.Address2, Users.City, Users.ActiveInd, Users.Zip, Users.WkPhone, Users.HmPhone,Users.Fax,Users.Email,Users.Website, Users.UserType,Users.Title, Users.Note,Users.StateCD, Users.CountryCD,Users.CompanyPhoto,Users.CompanyDescr
FROM USERS
WHERE ' + @GenericColumn +' = ''' + @GenericValue + ''''
EXEC sp_executesql @SQL
SET @MaxID = (SELECT MAX(ID) FROM #UsersTempTable)SET @UsersMaxID = (SELECT UserID From #UsersTempTable WHERE ID = @MaxID)
SELECT SpecialtyName FROM Specialty s INNER JOIN UserSpecialty us ON s.SpecialtyCD = us.SpecialtyCD WHERE us.UserID = 29
SELECT * FROM #UsersTempTable
==========================================================================================SET @UsersMaxID = (SELECT UserID From #UsersTempTable WHERE ID = @MaxID)
SELECT SpecialtyName FROM Specialty s INNER JOIN UserSpecialty us ON s.SpecialtyCD = us.SpecialtyCD WHERE us.UserID = 29 <<<<<<<<<<<<<<<<< i need @UserMaxID ........RIGHT HERE
Use A Variable Along With The FROM Clause In SELECT Statement
Dec 28, 2004I have a table 'table_list' which contains two columns, table_name and a record_count. This table stores a list of tables and their corresponding record counts.
What I am trying to do is, to be able to write a select statement, that can read each table name in the 'table_name' column, execute a select count(*) for the same, and update its record_count with the result of select count(*).
This is the code in my procedure..
DECLARE @tab_list CURSOR
set @tab_list = CURSOR FOR select * from table_list
OPEN @tab_list
DECLARE @tab_name varchar(256)
DECLARE @rec_cnt int
FETCH NEXT FROM @tab_list INTO @tab_name, @rec_cnt
select count(*) from @tab_name
This select is looping around along with FETCH till all the table names are exhausted and their counts are updated from the cursor back into the table.
Problem is that, I am not able to use select count(*) from @tab_name, and its not accepting a variable there.
Please help me to construct the select statement that is similiar to
x=<table name>
select * from x
where x is a variable and the table name gets substituted.
what is the syntax for it ?
Put Select Statement In SSIS Variable
Sep 23, 2006Is it possible to add a variable in SSIS like
name of variable: myVar
Scope: Data Flow Task
Data Type: String
Value:SELECT hello FROM blah WHERE (azerty = @[User::pda]) AND (qwerty = @[User::phone])
@[User::pda] and @[User::phone] are also variables in SSIS just like the myVar I made
I know I'm doing something wrong with the data type because it's stores the whole select statement as a string
Help
Worf
How To Create A Select Statement With An Increasement Variable?
Dec 19, 2003Example:
Select icount + 1 as icount from table
or
Select counter() as icount from table
The above is wrong ...just a sample to show what I am trying to accomplish.
Is there a function in SQL statement? Thanks.
Return Variable Name As Part Of Select Statement.
Mar 9, 2008hey all,
I have the following query:
ALTER PROCEDURE [dbo].[sp_SelectMostRecentArticle]
AS
BEGIN
DECLARE @article_id INT
SELECT @article_id = (
SELECT TOP 1 article_id
FROM article
ORDER BY article_id DESC
)
DECLARE @comment_count INT
SELECT @comment_count = (
SELECT COUNT(comment_id)
FROM comment
JOIN article ON article_id = comment_article_id
GROUP BY article_id
HAVING article_id = @article_id
)
SELECT TOP 1 article_id, article_author_id,
article_title, article_body, article_post_date,
article_edit_date, article_status, article_author_id
article_author_ip, author_display_name,
category_id, category_name--, comment_count AS @comment_count
FROM article
JOIN author ON author_id = article_author_id
JOIN category ON category_id = article_category_id
GROUP BY article_id, article_title, article_body, article_post_date,
article_edit_date, article_status, article_author_ip,article_author_id,
author_display_name, category_id, category_name
HAVING article_id = @article_id
END
GO
as you can see, im trying to return a comment_count value, but the only way I can do this is by defining the variable.
I have had to do it this way, because I cannot say COUNT(comment.comment_id) AS comment_count or it returns an error that it cant reference the comment.comment_id.
But when change it to FROM article, comment; I get errors about the article_author_id and article_comment_id.
And i cant add a join, because it would return the amount of rows of the comment...
unless someone could help with what i Just decribed (as i would prefer to do it this way), how would i return the variable value as part of the select statement?
Cheers
SELECT Statement That Assign Value To Local Variable
Nov 12, 2013I am trying to figure out a way to retrieve a field value and assign it to a local variable with out destroying the whole structure of my T-SQL statement.
Here is the code:
DECLARE @AVERAGE_WHOLESALE_PRICE VARCHAR(20)
DECLARE @ORDERBY VARCHAR(20)
SELECT TOP 1 @AVERAGE_WHOLESALE_PRICE = P.NPT_PRICEX,
CASE NPT_TYPE
WHEN '07' THEN 1
WHEN '09' THEN 2
[Code] ....
The error message is
Msg 141, Level 15, State 1, Line 3
A SELECT statement that assigns a value to a variable must not be combined with data-retrieval operations.
How to modify this statement?
Storing Results Of Select Statement In @variable
Feb 11, 2008
I'm new to sql stored procedures but I would like to store the results
of an sql statement in a variable such as:
SET @value = select max(price) from product
but this does not work, can someone tell me how I would go
about in storing the results in a variable.
@value is declared as int
Thanks in advance,
Sharp_At_C
Getting A Variable That Has A SELECT Statement To Return Results
May 21, 2006I have concatenated a long Select Statement and assigned it to a variable. (i.e.)
@a = Select * from foo ---Obviously mine is much more robust
How do I execute @a to actually Select * from foo?
Transact SQL :: Passing Variable In Select Statement
Apr 21, 2015Everything about this query works except I'm trying to capture the @companyid (which is a variable) into a column in my table via my select statement.
My error is Invalid column name 'A113', etc. However it is the A113 I'm trying to insert into the first column of the table SAP_GLsummary
-- retrieves a list of gl balances from all companies
truncate table sap_glsummary
declare @companyID char(6)
declare c_company cursor for
select INTERID from dbo.GP_Interid
open c_company fetch next from c_company into @companyID
[Code] .....
Using A Variable To Specify Table Column In Sql Statement??
Feb 6, 2008Hello everyone,
I'm still quite new ASP.net, Visual Web Developer 2008, and SQL. It has been a fun learning experience so far. Anyways, the site I am designing needs to allow its users to extensively search several different databases (MS SQL databases). I have followed many of the tutorials and have found it rather easy to add table adapters, gridviews and other data features that use basic SQL Select statements. One of the major database tables contains several columns which I would like to include as a search parameters from a drop down list. I was wondering if there is any way I can write a select which will pass a variable to be used as a column name to the statement? For example:
SELECT DATE, GAME, EXACT, @COLNAMEFROM HistoryWHERE @COLNAME = @SOMEVARIABLE
This obviously doesnt work, but thats the gist of what I want to do. Any suggestions? I need this to be simple as possible, Most everything I'm doing is done through the visual design mode. Im still slow to learn C# and apply it in the codebehind files unless I have very detailed step by step instuctions.
Thanks
Scott
How To Assign The SELECT Statement Output To A Local Variable?
May 7, 2008
In my program i have function that will get one value from Database.
Here i want to assign the output of the sql query to a local variable.
Its like select emp_id into Num from emp where emp_roll=222;
here NUM is local variable which was declared in my program.
Is it correct.?
can anyone please guide me..?
Select Statement As Input Variable In Stored Procedure?
May 6, 2015Is it possible to have an entire sql select statement as the input variable to a stored procedure? I want the stored procedure to execute the select statement.
ie.
exec sp_SomeFunc 'select * from table1 where id=1'
It may sound weird, but I have my reason for wanting to do it this way. Is this possible? if so, how do I implement this inside the stored procedure?
Unable To Create Variable Select Statement In For Each Loop
Apr 24, 2007What I'm trying to do is this;
I have a table with Year , Account and Amount as fields. I want to
SELECT Year, Account, sum(Amount) AS Amt
FROM GLTable
WHERE Year <= varYear
varYear being a variable which is each year from a query
SELECT Distinct Year FROM GLTable
My thought was that I would need to pass a variable into a select statement which then would be used as the source in my Data Flow Task.
What I have done is to defined two variables as follows
Name: varYear (this will hold the year)
Scope: Package
Data type: String
Name:vSQL (This will hold a SQL statement using the varYear)
Scope: Package
Data type: String
Value: "SELECT Year, Account, sum(Amount) AS Amount FROM GLTable WHERE Year <=" + @[User::varYear]
I've created a SQL Task as follows
Result set: Full Result Set
Connection Type: OLE DB
SQL Statement: SELECT DISTINCT Year FROM GLTable
Result Name: 0
Variable Name: User::varYear
Next I created a For Each Loop container with the following parameters
Enumerator: Foreach ADO Enumerator
ADO Object source Variable: User::varYear
Enumeration Mode: Rows in First Table
I then created a Data Flow Task in the Foreach Loop Container and as the source used OLE DB Source as follows
Data Access Mode: SQL Command from Variable
Variable Name: User::varYear
However this returns a couple of errors "Statement(s) could not be prepared."
and "Incorrect syntax near '='.".
I'm not sure what is wrong or if this is the right way to accomplish what I am trying to do. I got this from another thread "Passing Variables" started 15 Nov 2005.
Any help would be most appreciated.
Regards,
Bill
Column Names From A Variable Without Execute Statement
Oct 11, 2002Is there anyway anyone knows of that i can select columns using variable names without building an execute statement??
ie.
DECLARE @col varchar(10)
SELECT @col = "AuditID"
SELECT @Col FROM tblAudit
??
Anyhelp a bonus
Thanks
Daniel/
How To Write A SELECT Statement And Store The Result In A Session Variable
Nov 6, 2007I'm sure this is a very simple piece of code, but I'm having trouble understanding how to do this.
First I have a database with three columns
ContactID
Combing In A Cursor, A Select Statement With The WHERE Clause Stored In A Variable
Mar 28, 2000Hi
I am ramesh here from go-events.com
I am using sql mail to send out emails to my mailing list
I have difficulty combining a select statement with a where clause stored in a variable inside a cursor
The users select the mail content and frequency of delivery and i deliver the mail
I use lots of queries and a stored procedure to retrieve thier preferences. In the end i use a cursor to send out mails to each of them.
Because my query is dynamic, the where clause of my select statement is stored in a variable. I have the following code
that does not work
For example
DECLARE overdue3 CURSOR
LOCAL FORWARD_ONLY
FOR SELECT DISTINCT Events.E_Name, Events.E_SDate, Events.E_City, Events.E_ID FROM Events, IndustryEvents + @sqlquery2
OPEN overdue3
I get an error message at the '+' sign
which says, cannot use empty object or column names, use a single
space if necessary
How do I combine the select statement with the where clause?
Help me...I need help urgently
Transact SQL :: How To Turn Select Aggregate Function Statement Into A Variable
May 26, 2015I tend to learn from example and am used to powershell. If for instance in powershell I wanted to get-something and store it in a variable I could, then use it again in the same code. In this example of a table order items where there are order_num, quantity and item_prices how could I declare ordertotal as a variable then instead of repeating it again at "having sum", instead use the variable in its place?
Any example of such a use of a variable that still lets me select the order_num, ordertotal and group them etc? I hope to simply replace in the "having section" the agg function with "ordertotal" which bombs out.
select order_num, sum(quantity*item_price) as ordertotal
from orderitems
group by order_num
having sum(quantity*item_price) >=50
order by ordertotal;
Using Column Number Inplace Of Column Name In SQL Select Statement
Jul 20, 2005Hello All,Is there a way to run sql select statements with column numbers inplace of column names in SQLServer.Current SQL ==> select AddressId,Name,City from AddressIs this possible ==> select 1,2,5 from AddressThanks in Advance,-Sandeep
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Jun 7, 2004I can't seem to get a cursor to work when I'm passing in a variable for a column name of the select statement. For example:
declare @col varchar(50)
set @col = 'Temperature'
declare notifycurs cursor scroll for
select @col from Table
Obviously this won't work correctly (since the result will simply be 'Temperature' instead of the actual float value for temperature). I tried to use quotes for the entire statement with an EXEC
(ie. exec('select '+@col+' from Table' )
but that gave me an error.
Is there a way to pass in a variable for a column name for a curor select statement????
How Do I Select A Column From Sp_spaceused Into A Local Variable?
Jul 20, 2005I want to look at the size of the current database, so I can create a newone if it gets too big (we are working around the 2gb MSDE limit for ourcustomers).I would like to do something like this:DECLARE @size INTEGERexecute BLOB0000.dbo.sp_spaceusedand make @size = the database_size column value that sp_spaceused returns.Any way to do this?Thanks.
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Jan 3, 2008I have a table that has a number of columns and rows and I need to run a stored procedure to extract data based on the column name and row name. Can anyone help me?
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Column With Select Statement
Sep 24, 2006Hi, i have a doubt, can a column have the value of a select? I mean, i'm making a photo gallery and on the categories table i need to know how many photos i have, so i need to count in the table photos the ones associated with the id of the category, the problem is that i'm listing categories with a datalist, is there a way so that a column on the categories table have the result of the count? Thanks in advance, if you don't understood my question feel free to ask me again and i'll try to explain it better, i really need this.
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Jan 13, 2005I have a stored procedure which contains a complex scripting that is not an option to rewrite as a single SELECT statement.
I want the following output:
CatID | CatTitle | CatTree
001 | News | exec sp_DisplayTree(@CatID)
My code I tried doesn't work:
SELECT
C.CatID As CatID,
C.CatTitle As CatTitle,
CatTree = (exec sp_DisplayTree C.CatID)
FROM
Cats As C WITH (nolock)
I cannot find a solution to my solution, please help...
Create New Column In Select Statement
May 28, 2014I am trying to create a new column 'COL_4' and, in the same step, create a case statement off of the new col. I know that the code below will not execute. I realize that I could get ride of COL_4 in my code below and concatonate but I need to keep Col_4 in the output.
SELECT
COL_1
,COL_2
,COL_3
,COL_4 = COL_1 + COL_2
,COL_5 = CASE
WHEN COL_1
THEN 'SOMETHING'
END
FROM TABLE_1
;
Can You Use Column Order Value In Select Statement
Nov 6, 2005Is there a shortcut to spelling out column names when you are doing a select statement?
For instance could you write Select 1, 5, 6 from table where whatever...
I tried this but didn't get any results so if you can I must be using wrong syntax.
Thanks
!
Possible To Parse A Column In A Select Statement?
Jul 20, 2005I have a column called SEGMENTED_BLOCK sample data:X,X,XXX,XX,XX,TYZC123456,X,X,TOYZ654321,1234,777777I need to do something that has the effect ofSELECT(stuff before first comma) as FIRST_ITEM,(stuff after first comma, but before second) as NEXT_ITEM,(stuff after second comma but before third(if any)) as THIRD_ITEMFROM SEGMENT_XREFWHERE LOOKUP_ITEM = 12345ORDER BY FIRST_ITEMFIRST_ITEM is pretty easy, but it gets uglier fast.My attempts are horrendously ugly nested checkindex and substring statements.Is there an easier way?
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