How Do You Place A Variable In Your Gridview Sql Statement?
Apr 12, 2006
I have the below select command in my gridview that uses a library name.table approach in the sql. I created a label on the page and want to pass the label in where i have the libarary1 text in the select statement. This will allow me to swap out the production library with my development library when im working on the site (thru the use of a site variable)
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:as400con %>"ProviderName="<%$ ConnectionStrings:as400con.ProviderName %>
" SelectCommand="SELECT * from library1.table WHERE COMPANY = ? and ack = ? and HORZN_DATE <= ?">
How would I insert a label.text value into the select statement replacing the library1 ? I tried to use the asp:controlparameter adding the text and placing a ? mark in place of the library1 but it failed.
Does anyone know if it is possible to use a variable in place of a database..table combination in a select statement
For Example: Instead of using the following with each database hardcoded in the SP:
select @dataused = sum(b.reserved) from DBSglep..sysindexes b where b.indid in (0, 1, 255) and segment != 2
I would like to loop for every database listed in sysdatabases and do this:
select @dbname = @dataname+'..sysindexes'
select @dataused = sum(b.reserved from @dbname b where b.indid in (0, 1, 255) and segment != 2
I have got the loop working, but just can't get the name substitution working as MSSQL dosn't seem to allow a variable after the FROM statement (it only seems to work with a hardcoded specific database..table name).
Any assistance in resolving this problem would be greatly appreciated! :-)
Hi all, Im trying to use a temporary table along with a gridview. But i keep getting an issue that says that I need to declare the variable name. Right now, I have it set up that I have a permanent table in the database that is serving as my temporary table, however Im running into issues if multiple users access at once... So I would like to dynamically create a table and use that for my temporary table and then drop the table when the user is done with it... heres my code so far..Private Sub AddRecords(ByVal prodins As String, ByVal releaseins As String, ByVal opsysins As String, ByVal currelins As String, ByVal schemains As String, ByVal commentins As String, ByVal freeformins As String) Dim tablevar As String = lblRequestor.TextDim tablename As String = "##" + tablevar Dim myConnection As New SqlClient.SqlConnection Dim query As String = "CREATE TABLE " + tablename + "(UniqueID int Identity(1,1), Product varchar(50), OperatingSystem varchar(50), CurrentRelease varchar(50), Release varchar(50), SchemaSize varchar(50), Comments varchar(50), TempRelease varchar(50), FreeFormFlag varchar(50), sourcereleasedir varchar(125))" Dim query2 As String = "INSERT INTO " + tablename + "(Product, Release, OperatingSystem, CurrentRelease, SchemaSize, Comments, TempRelease, FreeFormFlag) VALUES ('" & prodins & "','" & releaseins & "', '" & opsysins & "', '" & currelins & "', '" & schemains & "', '" & commentins & "', '" & currelins & "', '" & freeformins & "')"Dim myCommand As SqlClient.SqlCommandmyConnection = New SqlClient.SqlConnection("Data Source=mydatasource") myConnection.Open()myCommand = New SqlClient.SqlCommand(query, myConnection) myCommand.ExecuteNonQuery()myCommand = New SqlClient.SqlCommand(query2, myConnection) myCommand.ExecuteNonQuery() myConnection.Close()
And here is my query for the gridview.... SelectCommand="SELECT * FROM @tablename where FreeFormFlag <> 'Y'" and <SelectParameters> <asp:ControlParameter ControlID="tablename" Name="tablename" PropertyName="Text" DefaultValue="##default" /> </SelectParameters> so @tablename is set to the value of a textbox i have hidden which the textbox gets the username of the user and adds ## to it..so if john doe comes on... the texbox reads ##jdoe... and thats what im trying to name the temp table. SO the syntax is all there.... But i keep getting an error saying i need to declare @tablename... which is puzzling to me.. I tried doing declare @tablename varchar (50) select.....etc.
but then it brings up an error saying... @tablename is already declared, each variable must be unique..., You must declare @tablename... It tells me that its already declared then tells me i must declare it??? it makes no sense..
Hi, I really need some help trying to figure out why my gridview is not working when I create a custom sql statement. It "executes" the query, but gives me an error message when I "test the query". Here is the error message: "There was an error executing the query. Please check the syntax of the command and if present, the types and values of the parameters and ensure they are correct. Syntax error: Expecting '.', identifier or quoted identifier." Here is my sql statement: SELECT TBLPROJECTS.NAME, TBLPROJECTTYPES.NAME AS PROJECTTYPE, TBLPROJECTS.DESCRIPTION, TBLUSERS_1.LOGIN AS OWNERNAME, TBLUSERS.LOGIN AS MANAGERNAME, TBLPROJECTS.START_DATE, TBLPROJECTS.END_DATE, TBLAOI.NAME AS AREAOFINTEREST, TBLPROJECTS.MANPOWER, TBLUNITS.NAME AS MANPOWERUNITFROM TBLPROJECTS INNER JOIN TBLAOI ON TBLPROJECTS.AOI_ID = TBLAOI.ID INNER JOIN TBLPROJECTTYPES ON TBLPROJECTS.PROJECTTYPE_ID = TBLPROJECTTYPES.ID INNER JOIN TBLUNITS ON TBLPROJECTS.MANPOWERUNITS_ID = TBLUNITS.ID INNER JOIN TBLUSERS ON TBLPROJECTS.MANAGER_ID = TBLUSERS.ID INNER JOIN TBLUSERS TBLUSERS_1 ON TBLPROJECTS.OWNER_ID = TBLUSERS_1.ID I have tested it on a new project and still it does not work, I cannot find any problem, please help!!!!!!!!!!!!!!!!!!!!!!!!
I have built an Advanced Search page which allows users to select which columns to return (via checkbox) and to enter search criteria for any of the selected columns (into textboxes). I build the SQL statement from the properties of the controls. Works great. My problem is getting my gridview control to play nicely. At first I used a SqlDataReader and bound the gridview to it, thus giving me the ability to run new SQL statements through it (with different columns each time). Worked nicely. But, per Microsoft, sorting can only be done if the gridview is bound to a datasource control like the SqlDataSource. So I wrote the code to handle sorting. No big deal; worked nicely. But I could not adjust the column widths programmatically unless bound to a datasource control like the SqlDataSource. And could not figure out a work around. So, I decided to use the SqlDataSource. Works great. Except, I cannot figure out how to run a new SELECT statement through the SQLDataSource and have the gridview respond accordingly. If I try to return anything other than the exact same columns defined declaratively in the html, it pukes. But I need to be able to return a new selection of columns each time. For example, first time through the user selects columns 1,2,3,4 – the gridview should show those 4 columns. The second time the user selects columns 2,5,7 – the gridview should those 3 columns (and ONLY those 3 columns). Plus support selection and sorting. I am desperate on this. I've burned 2.5 days researching and testing. Does anyone have any suggestions? Thanks, Brad
Hello everyone, I have a view, NAS_vPosition that has a coloumn vLogin_Acting and I want to use the user.identity.name to select the row from this table that matches. So far i have tried: SelectCommand = "Select * FROM NAS_vPosition WHERE vLogin_Acting = ' <%=User.Identity.Name %> ' " with no success. Any help is appreciated
i have a case : i'm using a select statement with SqlCommand and save the results in the SQLDataAdapterand using the data table I post the result to the gridview and show it there....my question is what should I do to append string to the SQL Command??
I have a GridView dispalying from a SQLServerDataSource that is using a SQL Select Union statement (like the following):
SELECT FirstName, LastNameFROM MasterUNION ALLSELECT FirstName, LastNameFROM CustomORDER BY LastName, FirstName I am wondering how to create Update and Insert statements for this SQLServerDataSource since the select is actually driving from two different tables (Master and Custom). Any ideas if or how this can be done? Specifically, I want the Custom table to be editable, but not the Master table. Any examples or ideas would be very much appreciated! Thanks, Randy
Hi, I am seeking a hopefully easy solution to spit back an error message when a user receives no results from a SQL server db with no results. My code looks like this What is in bold is the relevant subroutine for this problem I'm having. Partial Class collegedb_Default Inherits System.Web.UI.Page Protected Sub submit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles submit.Click SqlDataSource1.SelectCommand = "SELECT * FROM [college_db] WHERE [name] like '%" & textbox1.Text & "%'" SqlDataSource1.DataBind() If (SqlDataSource1 = System.DBNull) Then no_match.Text = "Your search returned no results, try looking manually." End If End Sub Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load SqlDataSource1.SelectCommand = "SELECT * FROM [college_db] ORDER BY [name]" SqlDataSource1.DataBind() End Sub Protected Sub reset_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles reset.Click SqlDataSource1.SelectCommand = "SELECT * FROM [college_db] ORDER BY [name]" SqlDataSource1.DataBind() End SubEnd Class I'm probably doing this completely wrong, I'm a .net newb. Any help would be appreciated. Basically I have GridView spitting out info from a db upon Page Load, but i also have a search bar above that. The search function works, but when it returns nothing, I want an error message to be displayed. I have a label setup called "no_match" but I'm getting compiler errors. Also, next to the submit button, I also have another button (Protected sub reset) that I was hoping to be able to return all results back on the page, similar to if a user is just loading the page fresh. I'd think that my logic would be OK, by just repeating the source code from page_load, but that doens't work.The button just does nothing. One final question, unrelated. After I set this default.aspx page up, sorting by number on the bottom of gridview, ie. 1,2,3,4, etc, worked fine. But now that paging feature, as long with the sorting headers, don't work! I do notice on the status bar in the browser, that I receive an error that says, "error on page...and it referers to javascript:_doPostBack('GridView1, etc etc)...I have no clue why this happened. Any help would be appreciated, thanks!
Greetings everyone, I am trying to use a c# string with an SQL statement in a data adapter (.NET 03) The code works fine and I have a variable called : string test = ..... that takes the needed values. I just need to implement this string in the sql statement. I tried adding this to my query but I only got an empty row: WHERE (login = '" & test & "') WHERE (login = '" + test + "') any ideas? PS: If I change to something like WHERE (login = 'abcdef') I get a result meaning there's something wrong with the way I am putting the variable in the sql query. Again, I am not putting the string in a normal query in my .cs code. this is happening by right clicking the data adapter and configuring the sql statement in the designer window THANKS!
I've created an sql statement: select * from fin_installment where key_construction = (select ser_construction from fin_construction where key_contract = ' " & variable & " ') order by int_serial
which is in an Dataset's TableAdapter. This variable receives its value during the form init and it is an integer. When I start the page the folowing error message is displayed:
" An error has occurred during report processing. Exception has been thrown by the target of an invocation. Conversion failed when converting the varchar value ' " & azonosito & " ' to data type int. "
So my question is that how can I use variables in sql statement in dataset?
Hi, I am trying to use a variable inside a LIKE statement, but it is not working as expected. It will not give a error, but it shows no results while it does show results if I replace the variable with the normal string within the LIKE statement. Here is my code:
Code:
-- this example returns results SELECT whatever FROM mytable WHERE whatever LIKE 'blah%';
Code:
-- this example returns no results DECLARE @test VARCHAR; SET @test='blah%';
SELECT whatever FROM mytable WHERE whatever LIKE @test;
Any ideas why the version using the variable would not work?
I'm having some trouble modifing a script to save me tons of work. The script if from Microsoft, and it is used as step 3 in a 6 step process to move MS Great Plains users from one server to another. Anyway, the script runs on only 1 company database at a time, and for most Great Plains environments there would only be 1 or 2 company DBs. But I am administering in an ASP environment and we have over 30 company DBs to move. So, I though I would adapt thier script to iterate over each company DB to do the work (rather than creating 30 separate scripts). So I wrapped their loop with my loop to do the iteration. The problem is that T-SQL will not let me use a variable in a USE statement. I've tried to remove the USE statements, but that added a lot of complexity in the internal loop. What is the best way to do this?
Here is the modified code:
/* ** Drop_Users_Company.sql ** ** This script will remove all users from the DYNGRP in the company database ** specified. It will then drop the DYNGRP and readd the DYNGRP to the company. ** It will then add all users back to the DYNGRP based on the SY60100 table. ** NOTE: You will need to replace %Companydb% with the company database ** name. */ /* Instead of replacing %Companydb% (in each USE statement) with the name of the single company database that this script is supposed to work on, I've added @cCompany to hold the company DB name through each iteration of the outside cursor/while loop. */
declare @cCompany sysname/* ADDED BY ME FOR THE OUTSIDE LOOP */ declare @cStatement varchar(255)/* Misc exec string */ declare @DynDB varchar(15)/* DB Name exec string */ declare @DYNGRPgid int/* Id of DYNGRP group */
/* ** Loop through all company databases, emptying the DYNGRP group. */ SET QUOTED_IDENTIFIER OFF
use DYNAMICS
/* Select all of the Great Plains database names from the DB_Upgrade table, where the DB names are conviently stored */ declare C_cursor CURSOR for select db_name from DYNAMICS..DB_Upgrade where db_name not in ('DYNAMICS')
OPEN C_cursor FETCH NEXT FROM C_cursor INTO @cCompany WHILE (@@FETCH_STATUS <> -1) begin use @cCompany select @DYNGRPgid = (select gid from sysusers where name = 'DYNGRP')
declare G_cursor CURSOR for select "sp_dropuser [" + name+"]" from sysusers where gid = @DYNGRPgid and name <> 'DYNGRP'
set nocount on
OPEN G_cursor FETCH NEXT FROM G_cursor INTO @cStatement WHILE (@@FETCH_STATUS <> -1) begin EXEC (@cStatement) FETCH NEXT FROM G_cursor INTO @cStatement end DEALLOCATE G_cursor /* ** Do not delete the group to attempt to preserve the permissions already ** granted to it. */ use @cCompany if exists (select gid from sysusers where name = 'DYNGRP') begin exec sp_dropgroup DYNGRP end /* ** Recreate the DYNGRP group in all company databases. */ use @cCompany if not exists (select name from sysusers where name = 'DYNGRP') begin exec ("sp_addgroup DYNGRP") end
end DEALLOCATE C_cursor
______________________________________ Thanks for any help you have.
Declare @MyCode nvarchar(20); Set @MyCode='ABC' set @int_rowcount=(SELECT count(hoten) FROM @MyCode) I run it but still errors ! How can i implement above statement ? Thank you very much !
Hi,I am doing a really simple test with SQL Server 7.0:Using the Query AnalyzerLogged as saLocated in master database#1 USE Test#2 EXEC('USE Test')#1 => the database context is switched to Test#2 => the database is NOT switched???
I am testing a very simple query that use variable for sort direction and sort expression
DECLARE
@SortExp nvarchar(256),
@SortDir nvarchar(10)
Set @SortExp = 'curTime'
Set @SortDir = 'DESC'
Select * from table where recID < 20 order by @SortExp @SortDir
and i got this error...
The SELECT item identified by the ORDER BY number 1 contains a variable as part of the expression identifying a column position. Variables are only allowed when ordering by an expression referencing a column name.
Hy, i have this problem in vb.net: I must use a variable in SQL UPDATE statement, after SET statement, and i'm getting error. This is that line of code: Dim variable_name As StringDim variable As Integer Dim sqlString As String = ("UPDATE table_name SET " variable_name " = " & variable & " WHERE UserID = '" & UserID & "'")Dim cmdSqlCommand As New SqlCommand(sqlString, conConnetion) cmdSqlCommand.ExecuteNonQuery()
When I don't use a variable after SET statement, everything work fine. This code works fine: Dim variable As Integer Dim sqlString As String = ("UPDATE table_name SET column_name = " & variable & " WHERE UserID = '" & UserID & "'")Dim cmdSqlCommand As New SqlCommand(sqlString, conConnetion) cmdSqlCommand.ExecuteNonQuery()
could anyone please help me to resolve this issue? here's my sql query which retrieve last 3 month data t.execute(SELECT * tbl1 where nmonth >= datepart(mm,DATEADD(month, -3, getdate())) or nmonth <=datepart(mm,getdate()) and empno='"+emppip+"'") now instead of passing 3 in this query(datepart(mm,DATEADD(month, -3, getdate())) ) i need to pass a variable to retrieve data based on user requirements. i tried this way, dim mno as n mno=4 t.execute(SELECT * tbl1 where nmonth >= datepart(mm,DATEADD(month, -'"+mno+"', getdate())) or nmonth <=datepart(mm,getdate()) and empno='"+emppip+"'") its not working. can i achieve this using stored procedure? or can i directly pass a variable to sql synatax? thanks for any help
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
I am having difficulties with some sql syntax with sql server 2000. I am trying to write code to update a column in which the name of it is unknown. At run time, I am able to set a variable equal to the correct column name but in doing so, treats the value as a String. Ex. Declare @varA varchar(12) select @varA = (select top 1 Value from #temp)
Update TableX set @varA = y.ColTest from TableX x, TableY y where x.Colid = y.Colid
It sets the variable = to the last value from TableX.ColTest I want the Update statement to update the value for the Variable which represents the correct column to update.
Hi, I want to use a variable in a 'use' statement... but, I cannot figure out the syntax, nor do I know if it is possible... Here is an example SQL script: /*-----------------------------------------------------*/
DECLARE @DataBase varchar(60) --Declare cursor for all DBs except master, MSDB, Model, tempdb DECLARE curdb CURSOR for select name from master..sysdatabases where name not in ('master', 'MSDB', 'Model','tempdb')for read only
--Open and perform initial fetch open curdb fetch curdb into @DataBase
--While there are databases to process, process each DB While @@fetch_status = 0
PRINT @DataBase use + ' ' + @database --or, use @database
fetch curdb into @DataBase
end
/*------------------------------*/ Thanks, Michael
I have been struggling with the below transact sql user defined function. I want to use a transact sql variable in an "in" statement. I don't get any results and I am not sure if I am receiving an error or not.
Code:
DECLARE @myval varchar(50),@username varchar(50) DECLARE @rolelist varchar(2000) SET @rolelist = '' SET @myval = 'user a,user b' select @myval = ''''+ replace(@myval,',',''',''') + '''' print @myval
DECLARE User_Cursor CURSOR FOR select distinct eusername from euser where eusername in (@myval)
OPEN User_Cursor
FETCH NEXT FROM User_Cursor INTO @username
SET @myval = @username SET @rolelist = @username WHILE @@FETCH_STATUS = 0 BEGIN SET @rolelist =+ @rolelist + ',' + @username
FETCH NEXT FROM User_Cursor INTO @username END CLOSE User_Cursor DEALLOCATE User_Cursor print @myval print 'rolelist' + @rolelist GO
I am at a loss any suggestions would be greatly appreciated.
What i am trying to do is concatenate variable "@Where" with CURSOR sql statement,inside a procedure . But, it doesn't seem to get the value for the @Where. (I tried with DEBUGGING option of Query Analyzer also).
============================================= SET @Where = '' if IsNull(@Input1,NULL) <> NULL Set @Where = @Where + " AND studentid='" + @input1 +"'"
if isnull(@Input2,NULL) <> NULL Set @Where = @Where + " AND teacherid =' " + @Input2 +"'"
DECLARE curs1 CURSOR SCROLL FOR SELECT firstname FROM school WHERE school ='ABC' + @where ============================================= Please check my SQL Above and Could somebody tell me how can I attach the VARIABLE with CURSOR sql statement ?
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.
Create procedure df_bppr @de nvarchar(30) As Begin Declare @sstr nvarchar(500) Set @sstr = N'Alter Table tbl Add Constraint df_title Default '+ @de + ' For title' Exec sp_executesql @sstr, @de End
Execute df_bppr @de = 'NoTitle'
******************
Msg 102, Level 15, State 1, Line 1 Incorrect syntax near 'NoTitle'. Msg 128, Level 15, State 1, Line 1 The name "NoTitle" is not permitted in this context. Valid expressions are constants, constant expressions, and (in some contexts) variables. Column names are not permitted.
--------------------
I created the procedure without any error. But when i execute the procedure it shows the above error
I want to create a proc which dynamically change the default value for more than one column with same default value.
I would like to set a variable within my if exists statement, however SQL is throwing and error stating:
Incorrect syntax near '='.
If I remove the if exists, the query runs fine. Is there a reason why this is not working the way I have it and what suggestions can I use to accomplish what I am trying to do, which is store the ID into the permissionID variable
Here is my code block:
Code Snippet
declare @permissionID int;
if exists(select @permissionID = Id from Permission
I've been coding a few years and SSIS makes me feel more stupid than any program I've ever used. I've read BOL and bought a book. Can't say either one has really helped.
I'm still a complete idiot after one week of working with it. I apologize for asking so many stupid questions.
What I'm trying to do now is parameterize a SQL statement.
I have a variable that's a string. I have a DataFlowComponent as a data source. I find references all over the Internet and this forum to something called an "ExecuteSQLTask" but I sure can't figure out what that is. In my toolbox I have data flow sources for DataReader, Excel, Flat Files, Old DB, Raw file, and XML but no Execute Sql Task.
Anyway SELECT * FROM TABLE WHERE COLUMN='Value' in the SQL Command property is simple enough. Now I want 'Value' to be a variable. You know, like in T/SQL DECLARE @Foo VarChar(25). Creating the variable is easy as pie.
I have found at least 10 different examples of specifying variables on the web, all of which claim to be SSIS examples, Is it User::Variable? @[User::Variable]? @Variable?
I want to read rows from a table, with a a variable value in the WHERE clause, and pass them to the fuzzy lookup task.
