The Data Access Application Block
Nov 10, 2005Hi,
Is there anyway I can impliment this in my application without installing it as a COM. My Web Hoster says they won't install it. The Data Access Application Block
Hi,
Is there anyway I can impliment this in my application without installing it as a COM. My Web Hoster says they won't install it. The Data Access Application Block
Does anybody knows, from where can I download the latest version of DAAB for SQL CE 3.5?
I know that the Moblie Client Softvare Factory was included a DAAB, but it is outdated in some respect.
So any information will be greatly appreciated.
Gabor
I download the DAAB CF version. However, most of them use SQLCEClient to connect to the database. Is there any DAAB that use SQLClient?
One workaround that I made is I replaced all SQLCEClient objects with the SQLClient objects. I only test one method "ExecuteDataset" and it works so far. However, my question is "does my workaround a good solution?"
Thanks,
Hendra
I'm trying to use the Data Access Application block, and am having some issues with configuration. I am using it in a class library, and it seems that with v 3 you need to configure the DAAB first, making changes to the configuration file. However, in a class library, I do not seem to have the web.config or app.config file to change. So where do I need to store the configuration settings?
Thanks,
Paul
This is my code...
public partial class test : System.Web.UI.Page
{protected void Page_Load(object sender, EventArgs e)
{SqlDatabase database = (SqlDatabase)DatabaseFactory.CreateDatabase("ConnectionString");DbCommand command = database.GetSqlStringCommand("SELECT UserName FROM Users WHERE UserID = '6264'");
using (IDataReader reader = database.ExecuteReader(command))
{if (reader.Read())
{lblTest.Text = "test";
}
}
}
}
This is my error:
Server Error in '/' Application.
Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.InvalidOperationException: Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached.Source Error:
Line 21: //DbCommand command = database.GetStoredProcCommand("CorrUsers_GetByUserId_s");
Line 22: DbCommand command = database.GetSqlStringCommand("SELECT UserName FROM Users WHERE UserID = '6264'");
Line 23: database.ExecuteReader(command);
Line 24: using (IDataReader reader = database.ExecuteReader(command))
Line 25: {Source File: d:webwwwrootchacha078dev.cha.toplingo.com est.aspx.cs Line: 23 Stack Trace:
[InvalidOperationException: Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached.]
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +1261381
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105
System.Data.SqlClient.SqlConnection.Open() +111
Microsoft.Practices.EnterpriseLibrary.Data.Database.GetNewOpenConnection() +195
Microsoft.Practices.EnterpriseLibrary.Data.Database.GetOpenConnection(Boolean disposeInnerConnection) +106
Microsoft.Practices.EnterpriseLibrary.Data.Database.ExecuteReader(DbCommand command) +62
test.Page_Load(Object sender, EventArgs e) in d:webwwwrootchacha078dev.cha.toplingo.com est.aspx.cs:23
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +33
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +47
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1436
Any help with this matter would be very much appreciated.
Thank you for your time.
Sincerely,
Jeffrey Pham
We are expanding an application's database hardware to have a mirrored failover server. Normally in this case we just have the application add "Failover Partner=MirredServerName" in the connection string.
However, this application is using the Enterprise Library Data Access Block and we can't find any documentation describing how to setup the Failover Partner using this library. Any help would be appreciated.
JOHNF
I am trying to execute oracle procedure (anonymous block) with input and output parameters from ms sql code and return 2 values back:a number and a string.I am using **EXEC() AT** to execute oracle code and return a string back to ms sql. It works fine when returning numbers, but if I add a string output parameter, I am receiving an error:Msg 0, Level 11, State 0, Line 0...A severe error occurred on the current command. The results, if any, should be discarded.
The server log has the following entry in exception.txt:
Exception 0xc0000005 EXCEPTION_ACCESS_VIOLATION reading address 00000005031C07E0 at 0x0000000070F9C183
There is also a SQLDump file generated:
* BEGIN STACK DUMP:
* 10/28/15 12:45:38 spid 63
* Exception Address = 000000005040C183 Module(MSVCR100+000000000003C183)
[code]....
It looks like the problem is in passing varchar2 from oracle into ms sql. I had logging code in oracle block, and it works fine. I have found a few examples of using **exec() at** but there is always only integer output passed back.
I am building a web app using VS2005 and SQL 2005 I would like to use the Caching Application Block to cache objects from my BLL. I was wondering if there is a way of utilizing the build in SQLDependency in SQL 2005 with the Caching Application Block??? Does anybody have tried this, are there any samples on the web???
Thanks,
Newbie
I successfully upsized an Access database to SQL Server Express so that I have an Access frontend and a SQL Server Express backend. People started using this on an intranet, but right away they started complaining that sometimes their data wasn't saved. For example, they might have entered 8 records but when they went back to look at them only 4 were actually saved in the database. Any idea why this might be, or how I could trace the errors and find out?
Paul_in_Brunei
When i wanna run Application in other computers in network. The following error occurs.
error : System.Data.SqlClient.SqlException: Login failed for user 'Suren-PCGuest'.ConnectionStr = "Data Source=SUREN-PCMSSQLSERVER,1433;Initial Catalog=WorkFlow;Integrated Security=True";
How can I access data to SQL server 2005 using Windows form application,ADO.net and .Net remoting?
Can anybody help me? please...
Here is my situation: I am creating a database driven ASP.Net web application that will be used over the internet. My ASP.Net application connects to my SQL server 2005 database/server by using a SQL server login. I am using the DPAPI API to encrypt my connection stings with a hidden entropy value for extra security. I am using the SQL login for obvious reasons, as my users will not have a windows login.
What I am trying to do: I want to limit this SQL login account to be able to just run/execute stored procedures and NOT access the tables or views directly. In my ASP.Net application I am using the MS applications data block, and I am using stored procedures for every single database access action. There is no inline SQL being executed from my web application.
What I have tried so far:
I created a new schema and made the above SQL login account owner of this schema. I then granted "Execute" permissions to the SQL login and DENY permissions to all other permissions.
I created an database role with "Execute" only permissions and DENY permissions to all other permissions.
What Happened: In BOTH of the above scenarios I tested a direct SQL statement against one of my tables, from my ASP.Net application and I was able retrieve data back, NOT GOOD, exactly what I am trying to STOP.
If someone could give me (Step-by-Step) guide on how to setup the situation I am looking for, I would be very grateful!
Thanks to all that help!
I get the below error on the event log of my application server which uses SQL database.
Details: RuleId:a811dcbc-4c5b-d9de-592b-f01e17fc0e9a. HealthServiceId:a5f70248-b545-4d35-7c84-e7aa87610ee4. The INSERT statement conflicted with the FOREIGN KEY constraint "FK_Alert_BaseManagedEntity". The conflict occurred in database "OperationsManager",
table "dbo.BaseManagedEntity", column 'BaseManagedEntityId'.
The statement has been terminated.RuleId:a811dcbc-4c5b-d9de-592b-f01e17fc0e9a. HealthServiceId:a5f70248-b545-4d35-7c84-e7aa87610ee4. The INSERT statement conflicted with the FOREIGN KEY constraint "FK_Alert_BaseManagedEntity". The conflict occurred in database "OperationsManager", table "dbo.BaseManagedEntity", column 'BaseManagedEntityId'.The statement has been terminated..
Details: RuleId:a811dcbc-4c5b-d9de-592b-f01e17fc0e9a. HealthServiceId:a5f70248-b545-4d35-7c84-e7aa87610ee4. The INSERT statement conflicted with the FOREIGN KEY constraint "FK_Alert_BaseManagedEntity". The conflict occurred in database "OperationsManager", table "dbo. BaseManaged Entity", column 'BaseManagedEntityId'.The statement has been terminated..
Is possible block access to sql server database, from hostame (pc name). I know only the hostname and not the user.
Is possible?
Thanks
I need to run a script in production that adds primary key to a table. Because table is large, I can't run it in one shot, the log file is not so large to accommodate it. Instead, I created a new table with same structure plus new surrogate primary key, and I populate it in a cursor loop.
I already ran it many times in test server, and no problems with that. But the problem will be in production when applications will be accessing this table and try to insert/update it while I am running my loop.
So I am looking for a solution how to block users to access this table, it's OK if they receive an error. Setting database to single user mode will not work because I don't want to block them from all the rest tables in this database.
I have the following stored procedure to test scope of variables
alter proc updatePrereq
@pcntr int,
@pmax int
as
begin
[Code] ....
In the above script @i is declare in the if block only when the @pcntr value is 1. Assume the above stored procedure is called 5 times from this script
declare @z int
set @z = 1
declare @max int
set @max = 5
while @z <= @max
begin
exec dbo.updatePrereq @z, @max
set @z = @z + 1
end
go
As i said earlier `@i` variable exists only when `@pcntr` is `1`. Therefore when i call the stored procedure for the second time and so forth the control cannot enter the if block therefore @i variable wouldn't even exist. But the script prints the value in `@i` in each iteration, How comes this is possible should it throw an error saying `@i` variable does not exist when `@pcntr` values is greater than `1`?
i am currently working on designing a database for a bank as a school project for my database class. We have to draw up an entity relationship diagram, Sql tables, database size estimate etc. I am currently working on the security portion of the project. I need to list the groups that have access to my application and use a grid format to show access to specific tables.
I am currently working on designing a database for a bank as a school project for my database class. We have to draw up an entity relationship diagram, Sql tables, database size estimate etc. I am currently working on the security portion of the project. I need to list the groups that have access to my application and use a grid format to show access to specific tables.
Role Loans Payments Transactions Accounts Customer Emplo
Database Admin SUID SUID SUID SUID SUID SUID
Branch Manager SUI SUI SUI SUI SUI SUI
Internal Auditor S S S S S S
Loan Officer SUID SUI SUI S S
Tellers S S S S SU
Customers U
Hi,
I am developing an application that uses Access database (mdb file) to store the user data. The user of this application is not interested in the database file (to view in MS Access Environment). Does the user machine requires MS Access installation to run my application or just some couple of dlls (OleDB driver, Access DB Engine,..) should be enough to run my application?
Thanks,
Rao
I want to assign consecutive numbers to a block of data, where block of data is based on days consecutive to each other i.e., one day apart.
Date format is: YYYY-MM-DD
Data:
TestId TestDate
----------- -----------------------
1 2011-07-21 00:00:00.000
1 2011-07-22 00:00:00.000
1 2011-07-27 00:00:00.000
[Code]....
The OrderId is the column I am trying to obtain using my following cte code, but I can't work around it.
Is there a clean way to block access to a peer which has been offline, during peer-to-peer transaction recovery (while the outstanding transactions are being applied)?
Thanks, Liston
The code block is embedded into a grid view item template. <ItemTemplate> <% if ((bool)Eval("isNew")) { %> New Post <% } %></ItemTemplate> but as per rule Eval and Bind can be only use bind the data. How would i pull the information from sqldatasource in the template like this?
View 4 Replies View RelatedI want to assign consecutive numbers to a block of data where block of data is based on days consecutive to each other i.e., one day apart.
Date format is: YYYY-MM-DD
Data:
TestId TestDate
----------- -----------------------
1 2011-07-21 00:00:00.000
1 2011-07-22 00:00:00.000
1 2011-07-27 00:00:00.000
1 2011-07-29 00:00:00.000
1 2011-07-30 00:00:00.000
1 2011-07-31 00:00:00.000
[Code] ....
My Attempt:
WITH cte AS
(
SELECTTestId,
TestDate,
ROW_NUMBER() OVER
(
PARTITION BYTestId
[Code] .....
Expected Output:
TestId TestDate OrderId
----------- ----------------------- --------------------
1 2011-07-21 00:00:00.000 1
1 2011-07-22 00:00:00.000 1
1 2011-07-27 00:00:00.000 2
1 2011-07-29 00:00:00.000 3
1 2011-07-30 00:00:00.000 3
[Code] ....
The OrderId is the column I am trying to obtain using my following cte code, but I can't work around it.
Hi,
Can anyone tell me how i can access an application or open tables in MS sql server that are in MS Access. Its urgent and any help will be appriaciated.
In SQL Server 2014, how big for the block size is better for performance? 64 KB? 4 KB?
For normal database files, best practise is 64 KB disk block size. Not sure if it is same for memory-optimized filegroup.
I am experiencing problems with databases for the web application that i am developing. The problem is that I have transferred the database from access to sql which initially seemed to work ok. I am now however struggling to solve the problems with one of my fields titled 'notes'. The trouble is that in the original database the notes field contained different notes from different dates for each record, and each note is separated by carriage returns. It is the carriage returns that are now proving to be a problem in the sql database but i am not sure what to do. Any advice would be appreciated.ThanksDan
View 3 Replies View RelatedHello all, We have a SQL database that uses a MS Access projectfront-end, which I am now creating an ASP.Net application for (And am completely new to so may be missing some foundation concepts). With the Access project I added Active Directory groups to the database to use for permissions, logins, etc. For the ASP app I have it set to use Forms authentication with Active Directory (ActiveDirectoryMembershipProvider). I can login to the app with the AD usernames/passwords but the connection from ASP.Net to SQL is using the ASP User. Is there a way to provide the authentication from the ActiveDirectoryMembership through to the SQL server, so the user: bobuser would be authenticated to SQL instead of ASPNETUSER?Or do I need to have the ASP.net app handle the permissions of which SP's a user can execute?Any help or suggestions are appreciated.Thanks,Jamie.
View 2 Replies View RelatedHi,
I have recently transfered data from MS Access to MS SQL Server 2000 and created user interface in MS Access Project (ADP). Now I need to secure the data on server and want to access it ONLY through interface I created in MS Access. Every user has to log in the application (user id and password). Users may have the same access rights to the server (so maybe just one account or whatever I need for all of them). Can anyone advice me how to set it up? To access sql server from MS Access I am using ADO.
Thank you.
dj
Hi all,
sql server 2000
windows 2000
authentication is through the db (not windows).
I am attempting to limit access to one of our production sql server databases. I want to ensure that only application users can connect to the db, i.e they connect to the application and the application connects to the database (database access is transparent to them). The app uses a common login account.
I would like to prevent users from connecting to the db using ad hoc query tools or other EDIs (toad for sql server, ...). Currently there is nothing stopping them from doing so using the application acct/pwd.
I am contemplating writing a trigger that checks for the program that the user is using and if the program is not recognized, kill the session. Is this the right approach or is/are there any "out of the box" utilities that will do this for me?
FYI. the acct/pwd that the app uses to access the db is well known to users.
I can't run my web application on remote pc which is connected in flan with my pc.It works on my local pc but it is not working on remote pc. i m geeting an error like as blowAn error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) i have used sql server 2000 for my database but i my getting error for sql server 2005 which i have never used in my web application.Here is the Exception detailsException Details: System.Data.SqlClient.SqlException: An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)i have used coonection string as followsData Source=neptune;Initial Catalog=azim;User ID=saso can anyone give me soluion of this problem
View 1 Replies View RelatedI have the below procedure with an output parameter '@rowcount'. Now My issue is how to access the value of '@rowcount' in my ASP.Net application using C#. I have also pasted my C# code which I am using .
create procedure mypro1(@id varchar(10),@rowcount int output)
as
select * from canid where id like @id
/* @@ROWCOUNT returns the number of rows that are affected by the last statement. */
select @rowcount=@@rowcount
--------------------------------------------------
C# code to retrieve the output parameter valuecmd = new SqlCommand("mypro1", cn);
cmd.CommandType = CommandType.StoredProcedure;cmd.Parameters.AddWithValue("@id", TextBox1.Text).Direction=ParameterDirection.Input;
Parameter cout = new Parameter("@rowcount",SqlDbType.Int);cout.Direction = ParameterDirection.Output;
cmd.Parameters.Add(cout);
can some body assist me in the above code whether its right or what needs to be added to get the output parameter value.
Hi all
Certain people in our company want to use Crystal Reports for data-processing. Problem is we want them to NOT be able to access data in databases within the live server.
Given that we use trusted connection to validate all kind of data-access, I am wondering if there is a way so that (via NT administration or via some SQL Server security features)
the live-server can refuse any connection request from the Crystal Reports application. At the moment the same group of people are allowed access to database (and should remain to be so) on this "live" server via some other applications (e.g. Microsoft Access).
Any advice is welcomed.
Simon
Hi there,I have written an application which uses MS Access for it's database engine.Due to the large size which the database has become I have decided that itwould be sensible to use SQL Server with the application instead.I am an extreme SQL Server newbie so I am not really sure what I'm doingyet! I have successfully downloaded and installed the MS SQLDE 2000 andservice pack 3.What do I need to do next? Ideally I would like to convert the existingAccess database to MS SQL Server format. Also I would like to know if it ispossible to create an SQL Server database from scratch using a guienvironment similar to Access and if so which software (preferably free) doI need to achieve this?Many thanks,Clive.
View 3 Replies View RelatedI have installed the SQL Server 2000 and its up running.
I can connect to the database direct as administrator, but my test application(asp.net 2.0) returns an exception.
SqlConnection sqlConn = new SqlConnection("data source=10.61.90.24;initial catalog=testdb;persist security info=False;user id=sa;pwd=data;Type System Version=SQL Server 2000;");
sqlConn.Open();
I receive this exception:
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)