Variable For The Table Name In A SELECT Statement.
Apr 23, 2007
Hi,
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 29
Incorrect syntax near 'tbl_ProjectNumber'.
Consider 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
I hope someone can answer this, I'm not even sure where to start looking for documentation on this. The SQL query I'm referencing is included at the bottom of this post.
I have a query with 3 select statements joined together like tables. It works great, except for the fact that I need to declare a variable and make it a table within two of those 3. The example is below. You'll see that I have three select statements made into tables A, B, and C, and that table A has a variable @years, which is a table.
This works when I just run table A by itself, but when I execute the entire query, I get an error about the "declare" keyword, and then some other errors near the word "as" and the ")" character. These are some of those errors that I find pretty meaningless that just mean I've really thrown something off.
So, am I not allowed to declare a variable within these SELECT tables that I'm creating and joining?
Thanks in advance, Andy
Select * from
(
declare @years table (years int);
insert into @years
select
CASE
WHEN month(getdate()) in (1) THEN year(getdate())-1
WHEN month(getdate()) in (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12) THEN year(getdate())
END
select
u.fullname
, sum(tx.Dm_Time) LastMonthBillhours
, sum(tx.Dm_Time)/((select dm_billabledays from dm_billabledays where Dm_Month = Month(GetDate()))*8) lasmosbillingpercentage
from
Dm_TimeEntry tx
join
systemuserbase u
on
(tx.owninguser = u.systemuserid)
where
Month(tx.Dm_Date) = Month(getdate())-1
and
year(dm_date) = (select years from @years)
and tx.dm_billable = 1
group by u.fullname
) as A
left outer join
(select
u.FullName
, sum(tx.Dm_Time) Billhours
, ((sum(tx.Dm_Time))
/
((day(getdate()) * ((5.0)/(7.0))) * 8)) perc
from
Dm_TimeEntry tx
join
systemuserbase u
on
(tx.owninguser = u.systemuserid)
where
tx.Dm_Billable = '1'
and
month(tx.Dm_Date) = month(GetDate())
and
year(tx.Dm_Date) = year(GetDate())
group by u.fullname) as B
on
A.Fullname = B.Fullname
Left Outer Join
(
select
u.fullname
, sum(tx.Dm_Time) TwomosagoBillhours
, sum(tx.Dm_Time)/((select dm_billabledays from dm_billabledays where Dm_Month = Month(GetDate()))*8) twomosagobillingpercentage
Is 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.
I 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!
I'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);
this 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
I 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.
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
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?
I 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.
Everything 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
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..?
Is 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?
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.
Hi 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?
I 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;
I'm curious if anyone knows the correct way to do this pseudo-statement correctly? I want to create a stored procedure in which I send it the table name of the table I want to query.declare @tableName varchar(500)set @tableName = 'PortfolioPreferenceOwnership' select * from @tableName
Hello 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
I am running SQL Server 2000 and need to know how to write an IF else statement with a variable for a table name. I am constantly getting errors when I attempt this feat.
Code: Use [TestDatabase] Go CREATE PROCEDURE UserInputAsTable
Is it possible to have part of a table name used in a CREATE statementcontained in a variable? Here's what I'd like to do, althoughobviously the syntax of this isn't quite right or I wouldn't be hereasking:DECLARE @TblPrefix char (3)SET @TblPrefix = 'tst'CREATE TABLE @TblPrefix + TestTable (col1 int)The point there is to have a table named tstTestTableThe reason I need to do this is that my ISP will only give me onedatabase to work with and I'd like to have two copies of theapplication I'm developing running at the same time. So I'd like torun the sql script that creates the tables with TblPrefix set to "dev"and then run it again with TblPrefix set to "liv"thankseric
I would like to know how to add SELECT row to a table variable. It's not for my SELECT syntax(code following is just an ugly example) that I want help it's for the use of table variable. Your help will greatly appreciate!!!
ex : DECLARE @MyTestVar table ( idTest int NOT NULL, anotherColumn int NOT NULL)
SET @MyTestVar = (SELECT idTest, anotherColumn FROM tTest)-- This cause an error :-- Must declare the variable '@MyTestVar'. ???? What?
I have two table with some identical fields and I am trying to populate one of the tables with a row that has been selected from the other table.Is there some standard code that I can use to take the selected row and input the data into the appropriate fields in the other table?
I have a simple select quesry but with 'for XML AUTO, ELEMENTS'. I want to put in the resulting xml string into a temporary table and then alter that string as per my requirements. But I am unable to put this XML string into a table variable. Please offer your suggestions.
