hi,
I want to know through applicaiton how to check whether the Server named"Myserver" is Exists with Database named "MyDatabase" with Tables named ('Table1','Table2','Table3').
For any Database like (MS Access, Oracle, MS SQL-Server,MySQL)..
Please help me.....
thank's in advance.......
Paresh Patel.
Paresh.onmail@hotmail.com
Hi all,I am in the process of creating a page that checks to see if a particular user exists in the database and if it does then send to welcome.aspx if not then accessdenied.aspx. The userid is requested from the query string.I have done some research and cannot find anything directly related, I have tried to add bits of code into what i think is the right place but I dont think what i am doing is correct. Can someone help and show me where my code is going wrong? Also is there a better/more efficient way to do what I am doing?Thanks in advance. default.aspx.csusing System;using System.Data;using System.Data.SqlClient;using System.Configuration;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;public partial class _Default : System.Web.UI.Page{ protected void Page_Load(object sender, EventArgs e) { string UserID = Request.QueryString["uid"]; //string TransferPage; if (UserID != null) { //initiate connection to db SqlConnection objConnect = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["MyConnection"].ConnectionString); string sql = "SELECT COUNT(*) FROM members WHERE UserID = '" + UserID + "'"; SqlCommand query = new SqlCommand(cmd, test); int count = (int)query.ExecuteScalar(); int aantal = -1; // some default value if can't insert record if (count == 0) // no existing record for username { Server.Transfer("accessdenied.aspx"); } else { Session["UID"] = UserID; Server.Transfer("welcome.aspx"); } } }}
View 7 Replies View RelatedHi,
This my first time using the link server to read the files directly from within SQL2005, so issues the following link:-
EXEC sp_addlinkedserver
@server = N'MYVFPSERVER', -- Your linked server name here
@srvproduct=N'Visual FoxPro 9', -- can be anything
@provider=N'VFPOLEDB',
@datasrc=N'"C:PROGRAM FILESMICROSOFT VISUAL FOXPRO 9Samplesdata estdata.dbc"'
After that i can open query and do the import issues, but how can check if the table exists before issues the query.
Best regards
Hi,
I'm wondering is there a command that I can use to check if a certain value exists in the database? Something that returns true or false perhaps?
SELECT * FROM Customers WHERE ID ='1'
Ok so that's simple, but how can I return a true or false if '1' is a value that exists in the db?
thanks.
What’s the easiest way to check if a single value exists in a table column? I’m building a simple login page, and I want to get the username and check if it exists in my Users table. Here’s my SQL: SELECT UserID FROM UsersWHERE UserID = "admin" Could someone give me code to check for “admin” in my UserID column? Here’s some code I tried, using my SqlDataSource, but it returns an error “Could not load type 'System.Data.OleDb'” protected void Button1_Click(object sender, EventArgs e) { // Retreive the results from the SqlDataSource as a DataReader OleDbDataReader reader = (OleDbDataReader) SqlDataSource1.Select(DataSourceSelectArguments.Empty); // Read in the value if (reader.Read()) { } // Close the reader reader.Close(); } I don’t have to use the SqlDataSource, but originally thought it might be easier. I know how to use SqlDataSource to fill a whole GridView but this is different.
View 2 Replies View RelatedBasically, i am still relatively new to ASP.net and SQL. And i have the following query.
I have a skills table to which the user enters their skills using the following fields: Skillcatagory, SKill, Current Level, Target Level, target date and comments and the serial of the user.
I need to check via our staff table, which people have had a skill entered for them. And then produce a report on who has not had a skill entered for them.
This table has a serial of the user column aswell which is unique.
If there is more information that i can give you to assist me, please ask me.
You help would be greatly appreciated.
Hi there,
I want to create an SQL Function that checks if a table exists and returns true or false. I will pass this function a paramter (say @COMPANYID) e.g.
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[tblmyTableName_' + @COMPANYID) and OBJECTPROPERTY(id, N'IsUserTable') = 1)
how would I write this so the query is dynamically executed and I can get a value of true or false back?
Hello.
How can I check if a temporary table exists in the current context?
With normal tables I'd do a
EXISTS ( SELECT name FROM sysobjects
WHERE name='myTableName' AND type='U')
However, I can't do that with a temporary table. I'd have to go look at the sysobjects table in the tempdb database.
The problem is that for temporary tables, a suffix is added to the name to make it unique for each scope. I can't change the WHERE clause to name LIKE 'myTableName%' because this would return true if a temporary table with the same name exists in a different scope.
Any ideas?
Carlos
I apologize if this has been asked, and answered, before. I wasn't able to find relevant posts on the forum. A Google search pointed me to a couple of pages that offered this simple recipe:
if object_id('#temp') is not null
print 'table exists';
(I have also tried 'tempdb.#temp', and 'object_id(..,'U'))
Unfortunately, this doesn't work: the condition evaluates to 'false'. #temp is alive and well: strying to 'select .. into' it raises error
> There is already an object named '#temp' in the database.
Thanks a lot!
I'm trying to check if a certain table exists in a given database on a SQL 2005 Server.
I've tried numerous times without any result.
can anyone point me in the right direction?
I was able to get this code to work but now I get a SQL error if you try to submit the same information twice. How can I add a message saying that the "email" already exists in database without the SQL error? protected void Button1_Click1(object sender, EventArgs e) { SqlConnection conn = new SqlConnection("Data Source=TECATE;Initial Catalog=subscribe_mainSQL; User Id=maindb Password=123456; Integrated Security=SSPI"); SqlCommand cmd = new SqlCommand("INSERT INTO [main] (, [userid], [fname], [lname], [degree]) VALUES (@email, @userid, @fname, @lname, @degree)", conn); conn.Open(); cmd.Parameters.AddWithValue("@email", email.Text); cmd.Parameters.AddWithValue("@userid", uscid.Text); cmd.Parameters.AddWithValue("@fname", fname.Text); cmd.Parameters.AddWithValue("@lname", lname.Text); cmd.Parameters.AddWithValue("@degree", degree.SelectedItem.Value); int i = cmd.ExecuteNonQuery(); conn.Dispose(); }
View 5 Replies View RelatedI am trying
IF OBJECT_ID(''tempdb..#tempTable.Column'') IS NOT NULL
But its returning me a null every time. Is there any other way to check if column exists in temporary table.
It is possible for global temporary tables, but for local, it is said that the names(in the tempdb) change each time the table is created, so i am not sure if there is a way to check it.
Thanks
I am writing my first SSIS task. I have an MS Access database and I'm moving the contents of each table into a like-named SQL Server database. The task is working properly except for one step.
The source Access database may or may not have one of the tables in it. It will always have TableA, TableB, and TableC, but may or may not have TableD. I need to write my SSIS package in such a way that it will detect the presence/absence of TableD and either run or skip the import step for this table accordingly.
Can someone assist with the step that detects the table presence/absence in the MSAccess database?
thanks,
matt tag
hi. i'm building a news section for some friends of mine. i list all the news items on the main page in a gridview. i've made a custom edit linkbutton that sends the user to an edit page, passing the news id as a quarystring variable. on the edit page i first check if the querystring variable contains an id at all. if not, i redirect the user to the main page. if an id is passed with the querystring, i fetch the matching news item from the database and place it in a formview control for editing.so far, so good. but what if someone types a random id in the querystring? then the formview won't show up and i'd look like a fool. :) therefore, i need some kind of check to see if the id exists in the database. if not redirect the user back to the main page... so i started thinking: i could check the databsae in a page_load procedure. if all is well, then display the news item. since the formview is automatically filled with the correct data, does that mean that i call the database two times? i mean, one for checking if the news item exists, and one for filling the formview. logically, this would be a waste of resources.help is appreciated.
View 3 Replies View RelatedI need to do some processing but only if a specific table 'table1' exists in the SQL Server database. How can I check if this 'table1' exists using either ADO.Net code or SQL Server query?
View 12 Replies View RelatedI have a SSIS package where im importing data from MS access database file .MDB. I chose Microsoft JET 4.0 OLEDB provider. When i select a table and preview the data, im getting the below error.
Error at Data Flow Task [OLE DB Source [1]]: SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred. Error code: 0x80040E09.
Error at Data Flow Task [OLE DB Source [1]]: Opening a rowset for "_tblDateDateEarnedMismatch" failed. Check that the object exists in the database.
But it is working for the other tables .
Hi there,
I am quite new to SQL Server and am having a bit of trouble.
I have created a linked server with the datasource an excel spreadsheet.
I am trying to write a bit of T-SQL that basically checks if the linked server exists. If it does do X, if not do Y.
Can anyone help, its driving me bananas!
I am trying to check if a view exists on a linked server using sys.views. I tried to fully qualify it but that produces an error telling me the below, which both the database name is correct as well as the server name. Is it possible to obtain a list of views from a linked server connection? Msg 7314, Level 16, State 1, Line 321 The OLE DB provider "SQLNCLI10" for linked server "alpha" does not contain the table ""salesdata"."sys"."views"". The table either does not exist or the current user does not have permissions on that table.
SQL Server 2008 is the server I want to query from and sql server 2000 is the server I want to query even if I try to use this syntax it still produces the above said error
Code:
select
count(*)
from
alpha.salesdata.INFORMATION_SCHEMA.VIEWS
I also tried to qualify the views by using the below and still same error
Code:
select
count(*)
from
alpha.salesdata.INFORMATION_SCHEMA.VIEWS
where
table_schema = 'dbo'
I need to create a script task in sql server 2008 R2 to check if a file exists in a directory. For example, to see if output.dat exist under c:results. If the file exists, then send out an email stating the file exists, if not then send out another email stating the file does not exists.I noticed there is a huge difference between the script task in sql 2005 and sql 2008 r2.
View 3 Replies View Relatedusual way to check if file exists
DECLARE @File_Exists INT
EXEC Master.dbo.xp_fileexist 'serverBSQL_Backupfile.bak', @File_Exists OUT
print @File_Exists
1
And if check folder, can use "nul", but it doesn't work for UNC path
DECLARE @File_Exists INT
EXEC Master.dbo.xp_fileexist 'serverBSQL_Backupul', @File_Exists OUT
print @File_Exists
0
If use xp_subdirs like:
EXEC master.dbo.xp_subdirs 'serverBSQL_Backups'
If the folder doesn't exists, Msg 22006, Level 16, State 1, Line 3 xp_subdirs could not access 'ServerBSQL_Backups*.*': FindFirstFile() returned error 67, 'The network name cannot be found.'
how to check if UNC folder exists in Backup? in my code I want to check if the unc folder exists before doing backup, the unc path is retrieved from other table or backup history.
I wanted to create a package to copy the objects from one database to another and replace those object if they already exist. Therefore, before the package executes you do not know whether all the objects exist on the target server or only some of them.
Using the 'Transfer SQL Server Objects Task' I have found that I cannot get this to execute cleanly by itself. If I set the 'DropObjectsFirst' to false then an error is thrown if the object exists and if I set it to true then an error is thrown if it does not exist.
In order to get round this I have had to create an 'Execute SQL Task' to list all the objects and then go through them dropping them on the target server in a for each loop before executing the 'Transfer SQL Server Objects Task' with 'Transfer SQL Server Objects Task' set to false.
However, is there a better way of achieving this or am I missing something in the 'Transfer SQL Server Objects Task'?
Hello,
I'm SQL Server 2005 newbie, could you be so kind and help me how to write the most efficient way stored procedure, which checks by PK if specified row exists, then updating the row, otherwise inserting new one.
Thank you for your kind help.
Hello,I created the following SQL script to check if a record exists:IF (EXISTS (SELECT LevelName FROM dbo.by27_Levels WHERE LOWER(@LevelName) = LOWER(LevelName))) Return (1)ELSE Return (0)And I also found in a web page another solution:IF EXISTS(SELECT 1 FROM TABLENAME WHERE LevelName=@LevelName) SELECT 1ELSE SELECT 0- Which approach should I use?- Why "SELECT 1 FROM"?- And when should I use SELECT or RETURN?All I need is to know if the record exists ... nothing else.I will use this procedure on an ASP.NET 2.0 / C# web site.I am not sure if this important but anyway ...Thank You,Miguel
View 6 Replies View RelatedHi,
I was wondering if someone can help.
In vb.net what is the best way to check if a record exists if you are using an sql data reader?
For my application I need to display a button control (make it visible on the page) if a record is available after executing my sql select statement.
cheers
Mark :)
Does anybody can tell me how to check if cursor exists ?
I have a "try and catch" blocks.
I want to destroy the cursor when error occurred and it jumps into "catch" block.
Before I destroy the cursor I want to check if it exists, because the error could occurred before I have declared or opened the cursor.
Hi!
I have created a formview which I among other things uses to insert new values into a database. What I want to check is if the primary key which is put into the form already exists in the db. If it is I want to get a message to my web page, if not the data can be inserted.
How can I do this?
And if the only way to control this is to create a stored procedure. How do I write such a proc?
Is there is a piece for code ot sample code that can let me check if a file exists? Has any one done this before?
Thanks
I declare a cusror named crInv inside a loop.
Since I open this cursor a lot of times I want to check if is already opened.
I try to use the Cursor_status function but it always returns -3.
The syntax is:
DECLARE crInv SCROL CURSOR FOR
SELECT Val1, Val2 FROM TABLE1 WHERE Val3=450
If Cursor_Status('local','crInv')>0 BEGIN
CLOSE crInv
DEALLOCATE crInv
END
This code is inside a loop.
If I PRINT Cursor_Status('local','crInv') before and after the DECLARE statement it always returns -3.
What is wrong??
Best regards,
Manolis
Hello all.
Can anyone tell me how to go about establishing if a particular view exists on a table?
Thanks.
Hello all.
Can anyone advise me how to check to see if a particual triggers exists through a SQL script?
Thanks
Is there a way in T-SQL to check to see if a #tempTable exists? I want to write a proc the uses a temp table, but I first need to see if the table already exists. if it does I want to drop it, otherwise skip
View 23 Replies View RelatedHi, can someone tell me how to check if a file exists. If it exists then i want to continue with the process and if it fails then send a mail to me.
Thanks in advane.