Data Changes In SQLExpress Not Committed?
Aug 2, 2006
Hello,
I am developing an application with a SQLExpress database. The database contains a very simple table, and I have added a Dataset object to the solution, and generated a plain Adapter object in the Dataset (using the standard VS wizard capabilities) to operate on one of the tables in de database. Just plain SELECT, INSERT operations, etc.
Strange thing is, the data changes caused by the adapter's generated Insert command (which will call the INSERT statement on the database) are only visible while the application runs (or so it seems). For example:
- I start off with the table containing 2 records, and start debugging
- perform a COUNT within the code: 2 records
- call the Insert function once from code
- perform a COUNT within the code: 3 records
- stop debugging
- inspect the table: the 3rd record doesn't exist, just the 2 records
So, it seems that the changes don't get committed, although I am not sure it is a transaction/commit problem. I haven't been able to figure out what I can do to fix this. I have used adapters before on a SQL database, no problems there. Any comments appreciated.
Cheers, JP
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May 11, 2006
I have a package loading up rows of employees from an excel file. An employee may be in the file multiple times. The package does a lookup and if not found it inserts the employee. When the employee is found it does an update.
So in my file employee A gets added on the first occurrence in the file. On the second occurrence, the lookup does not find the employee and tries to insert a second time and I get a unique constraint. How do I make the first insert Commit so that it is seen by the lookup on the second occurrence.
thanks
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Mar 10, 2000
Consider this example please.
BEGIN TRAN
insert into OrderDetail (fields) VALUES (values)
insert into Orders (fields) VALUES (values)
COMMIT TRAN
If there is a trigger on Orders that takes some fields from OrderDetail and puts them into some other table.
When the trigger fires, can it find the details if the COMMIT has not occurred yet.
I'm wondering If I should use isolation level READ UNCOMMITTED.
After all, If the whole transaction rolls back, my trigger activity will be rolled back as well. Comments?
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Jun 9, 2008
I have a queue in service broker, which gets messages with a stored procedure which is invoked from VS application. The messages are properly stored in queue. I want to receive these messages one after the other and put it into a table. I am fetching the messages in a while loop which breaks when messages are over.
The first record is inserted properly. In the next iteration of the loop I want to append the next message data in that same record. This will continue for approximately 10 minutes after which a new record will be created. When I attempt to append the data in first record that record is not being read even though I have used isolation level read uncommitted.
What is it that I am missing to achieve the desired results?
Gouri Sohoni
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Mar 13, 2007
I can't start SQLEXPRESS.
The SQL ERRORLOG shows: Error is 3414, Severity 21, State 2 and says: "An error occurred during recovery, preventing the database 'model' (database ID 3) from restarting." Just prior to this, I get a warning: "did not see LP_CKPT_END".
Any thoughts why this might be and how I can fix this?
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Sep 21, 2006
hiya,
I have sqlExpress and sqlServerManagementStudio on my XP pro box.
Will the installation of sqlExpress (Advanced Services) cause any problems?IS thereanything that I shold be aware of in advance?
many thanks,
yogi
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Jan 19, 2007
Hi All,
I have created an installation application which will install the application with SQL Express and .NET Framework 2.0.
If i install this application in a Fresh system(i.e which is not having SQL Express), it is installing the application with new database instance successfully.
But if i try to install the same in a system which is already having SQL Express, throwing "Object reference exception" because it is not able to create the new database instance.
Can anybody help me out .
Regards,
Doppalapudi.
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Dec 23, 2003
Hi ,
I got problem in production server at client place(No backup copy & not replicated,it's a SQL SERVER 2000 Enterprise server),by mistake client updated the data without using where condition then updated lakhs of rows (in SQL server autocommited),Now I need to recover this data from LOG file(.ldf).I tried with LOG EXPLORER(Third party tool) Trail version recovered from default database(Northwind,Pubs).But client not willing purchase this S/W for simple cause,How can we recover the data from LOG file.
1.Can we write the Program in C# to read the SQL Server Log and show the past transactions?
2.Is There any Stored procedures exist in SQL Server to read the day transactions in log file and take the backup?
3. How to read Transactions Log file in SQL Server 2000?
It's very Urgent,I am not expert in SQL Server 2000.
Could U Please Help me with possible solutions.
Regards,
Harikrishna.
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Dec 27, 2007
I have a question on locking pattern of read committed with snapshot isolation level that when two transaction update two different records then why do they block to each other even if they have previous committed value (old version of record).
I executed the below batch from a query window in SSMS
--Session 1:
use adventureworks
create table marbles (id int primary key, color char(5))
insert marbles values(1, 'Black')
insert marbles values(2, 'White')
alter database adventureworks set read_committed_snapshot on
set transaction isolation level read committed
begin tran
update marbles set color = 'Black' where color = 'White'
--commit tran
Before committing the first transaction I executed below query from second query window in SSMS
--Session 2:
use adventureworks
set transaction isolation level read committed
begin tran
update marbles set color = 'White' where color = 'Black'
commit tran
Here the first session blocks to second session. These same transactions execute simultaneuosly in snapshot isolation level. So my question is why this blocking is required in read committed with snapshot isolation level?
Thanks & Regards,
Subhash Chandra
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Dec 3, 2005
I'm trying to insert data into my local SQLExpress database by using on buttonclick from a asp.net page. I run the page, hit submit and I check my database and there's no data entered. Does the following code look correct or do I need to look at other things...
Thanks in advance!
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
If Not Page.IsPostBack Then
Dim mycommand As SqlCommand
Dim myconnection As New SqlConnection
Dim insertCmd As String
Dim guidResult As String = System.Guid.NewGuid().ToString()
Dim isAffected As Integer
myconnection = New SqlConnection()
myconnection.ConnectionString = "Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|ASPNETDB.MDF;Integrated Security=True;User Instance=True"
myconnection.Open()
insertCmd = "Insert Into [tbl_Messaging] ([UserName], [Admired], [message], [messageID], [datesent]) Values (@Username, @Admired, @message, @messageID, @dateSent)"
mycommand = New SqlCommand()
mycommand.CommandType = CommandType.Text
mycommand.CommandText = insertCmd
mycommand.Parameters.Add("@username", SqlDbType.VarChar).Value = Profile.Username
mycommand.Parameters.Add("@admired", SqlDbType.VarChar).Value = TextBox1.Text
mycommand.Parameters.Add("@message", SqlDbType.VarChar).Value = TextBox2.Text
mycommand.Parameters.Add("@messageid", SqlDbType.UniqueIdentifier).Value = guidResult
mycommand.Parameters.Add("@datesent", SqlDbType.SmallDateTime).Value = DateTime.Today.ToShortDateString
isAffected = mycommand.ExecuteNonQuery()
myconnection.Close()
End If
End Sub
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Mar 21, 2006
Because of numerous problems trying to get sqlexpress working, I uninstalled it with the intention of reinstalling (via Add or Remove Programs). However, now when I try to reinstall it, I get a message that the I am not making a changes so it won't let me install it.
I do have sql server 2005 developer's edition installed; is that the reason? and does that mean I cannot have both installed on the same machine?
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Dec 10, 2014
I have several databases set to read committed snapshot isolation level. Tempdb is configured according to best practices, but I don't see it's used much.
The application uses EF6, and it calls the stored procedures in the following way
Database.ExecuteSqlCommandAsync("exec dbo.spSync_MatchesByTenant @MatchesGroup, @TenantId", parameter, licenseIDParam);
Is it possible the code does not use the read committed snapshot isolation level of the database?
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Feb 22, 2008
Hello, I am haing a little trouble with send cell data from an Excel sheet to SQLEXPRESS and I'm sure that it is not that hard. Has anybody else come accross this. I have the code below, but it is not complete as I'm not sure what to do to complete it:
Private Sub cmdSend_Click()
Dim cn As New ADODB.Connection
Dim rs As New ADODB.Recordset
Dim strConn As String
strConn = "PROVIDER=SQLOLEDB;"
strConn = strConn & "DATA SOURCE=(local)SQLEXPRESS;INITIAL CATALOG=test;"
strConn = strConn & " INTEGRATED SECURITY=sspi;"
cn.ConnectionString = strConn
cn.Open
Set rs = New Recordset
With rs
' Assign the Connection object.
.ActiveConnection = cn
' Extract the required records.
.Open "UPDATE tblData Set ID = ID, Name = Name"
' Copy the records into cell A1 on Sheet1.
Sheet1.Range("A2, B2").CopyFromRecordset rs
' Tidy up
.Close
End With
cn.Close
End Sub
I know that it is not correct, but I am trying to convert a recordset query from SQL to Excel to Update Sql from Excel.
The cells from A2 down have an ID and cells from B2 down have a name.
Thanks for your time
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Apr 14, 2014
I receive Error: 3967, Severity: 17, State: 1. Insufficient space in tempdb to hold row versions. We have 8 data files for temp db of 10210 GB size and given 10240 GB as max size.
As MS suggest to calculate the temp db file size and growth rate we need to monitor the perform counters Free Space in Tempdb (KB) and Version Store Size (KB) in the Transactions object.
basic formula: [Size of Version Store] = 2 * [Version store data generated per minute] * [Longest running time (minutes) of your transaction
My report disk utilizations says tempdb is full ? I thonk I need a shrink for the file .
Still I am confused in calculating the size , My perform counter gives me data as such
Free Space in tempdb (KB) 279938496
Version Generation rate (KB/s) 53681040
Version Cleanup rate (KB/s) 53422320
Version Store Size (KB) 258720
Version Store unit count 22
Version Store unit creation 774
Version Store unit truncation 752
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Nov 4, 2015
After I watch a video for how to create MS SQL Replication, I configure distribution and create the publication. The problem comes from subscription. If I create a "PUSH" subscription, it works fine. However, when I create a "PULL" subscription, I got the following error. Where I should look for solution for this error.
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Jan 30, 2008
Hello everyone. i am using vwd 2005 express edition along with sqlexpress 2005. if i need to use database in my project. i click on database explorer and create a new table from the existing database. it is working very fine. But my problem is when ever i copy the project in my pen driveand try to use in another computer, the database doesnot gets copied when i copy my project folder. well i also tried to copy the tables from the database explorer but it does not happen.i tried to locate where does the database get stored in my computer.but i cant find where it resides..and even if i find which file to copy?i think there is log file and database file in some cases. can some body clarify me this scenario here.just tell me where can i find my database i m using in my project,so that i can copy it . and also whats the use of creating .mdf file in the project.?is this the better way of using database rather than creating using database explorer?confused?? thanks.jack..
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May 28, 2008
Hi All! i have a database in SQLEXPRESS 2005 but i need to this Database in SQL 2000...there is any way to move data from sqlexpress 2005 to sql 2000.... please help me.....
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Apr 4, 2015
I am inserting updating few tables from snapshot and reading same bunch of tables from reporting using readcommitted . It is showing some deadlocks i think it is write in this situation as " x" is not compitable with "s" ,"is".
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Oct 12, 2006
Hello allMy computer was installed with SQL Server 2005 Developer version, however, I checked the Default Web Site in Internet Information Service console and saw that the ASP.NET configuration was not correct as below."data source=.SQLEXPRESS;Integrated Security=SSPI; AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true"I have a question that can I replace the string, “.SQLEXPRESS”, with my server name and my SQL Server 2005 Developer named instance as below“DEVSERSQL2005Dev”?Thanks in advance for your help.
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Jul 3, 2007
Hello,I'm struggling a giant fight with my webprovider (ASP.net 2.0) in the following case:I'm using the default connectionstring which automatic is provided when I create an ASP.net webstarterskit. This connectionstring is working fine when i deployed that kit to a W2003 server testenvironment and is also running on my laptop. But when I tried to deploy the website to my (new) hostingserver, also a W2003 server, I landed in ERROR-land. The last error I received was:Cannot open database "Club" requested by the login. The login failed.>
Login failed for user 'NT AUTHORITYNETWORK SERVICE'.NB: I gave that user the right privileges and roles. My provider is not willing in sending me an example of a good working connectionstring and is directing me to their FAQ-site in which the right connectionstring is mentioned. That string looks like this (for a MS SQL database):strConnectie = "Provider=SQLOLEDB;" & _ "Data Source=(local)SQLEXPRESS;"
& _ "Initial Catalog=[GEBRUIKERSNAAM];" & _ "User Id=[GEBRUIKERSNAAM];" & _ "Password=[WACHTWOORD]"My connectionstring in web.config looks like this:<connectionStrings><clear/><add name="ClubSiteDB"
connectionString="Data
Source=.SQLExpress;Integrated Security=true;AttachDBFileName=|DataDirectory|Club.mdf;User
Instance=True" providerName="System.Data.SqlClient"/><remove
name="LocalSqlServer"/><add name="LocalSqlServer"
connectionString="Data Source=.SQLEXPRESS;Integrated Security=True;User
Instance=True;AttachDBFilename=|DataDirectory|aspnetdb.mdf"
/></connectionStrings>Is there anybody in this forum that can help me out and explain to me how to use the string, as provided by the host, in the default connectionstring i use in web.config ??Any help is welcome and appreciated.NB: I'm using VWD 2005 Express Edition and SQL Server Management Studio ExpressHarry Elzinga
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Jul 1, 2006
Hi All,I've been struggling with this for hours...Could someone please advise me on how to convert my current File based SQL Server Express website to a Server based SQL Express one.Particularly interested in what I need to do in the SQL Express management tool, changes I need to make the projecvt itself and changes needed to get IIS to understand things have been changed.Thanks,Martin.
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Jun 25, 2015
I am reading about the RESTORE command to a point in time using logs, I would like to know the minimum point in time recovery for a backup image using T-SQL command before applying a log restore and what are the log ranges needed for the restore during restore.
My Version 2008 R2
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Jun 27, 2014
i have a database which get refreshed every day from client's data . and we need to pull heavy data from them every day as reports . so only selects happens on that database.
we do daily population of some table in some other databases from this daily refreshed DB.
will read uncommitted or NOLOCK with select queries to retrieve data faster.
there will be no dirty read as there are NO DML operation in that database so for SELECT which happens concurrently on these tables , will NOLOCK work?
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Aug 6, 2006
Hi
I'm pretty new to all of this. I downloded a starter kit and am a bit confised as to SQLExpress. I have SQL Server already installed and just wondering what the option are.
I am currently using Visual Web Developer Express Edition and in the config file data source is SQLExpress and can't go any further. I don't want to mess with my current setup so just want to get some sugestions first.
Anyway hope this makes sense.
Thanks
GP
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Apr 2, 2007
I have just created a website with membership just using the standard SqlExpress auto generated file
Everything works fine until I upload it to webspace :(
I get the following Error
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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
I don't have SQL Server 2005 :(
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Apr 3, 2007
if my SQl server/COnnection is "SQL EXPRESS"..Im using an Import name "Import System.SqlClient" on every web form that i have...
as well as other SQl command name like "SQLConnection,SQLCommand etc..."is this the correct that im using all sqlcommand in my webform???
well sorry for this im just new..and one more thing..can i include Ado.net on it if my connection is "SQLEXPRESS" just i said?
Thanks for the answer....
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Jun 20, 2008
Hi
I am new to this forum .
I am running through few problems for sqlserver account settings .
I) My registery key entry for MSSQLserver just has a client folder .
2) My sql server configuration manager just has
sqlserver 2005 services , native client configuration and 2005 network configuration.
I can't see any server name or databases under it.
3)I normally work on EMS lite so I can see my ./SQLEXPRESS as server and databases under it and i can create logins etc ..I assigned db_owner role to one of my recent created database.
but when I try to connect it says :
The user is not associated with sqlserver connection.
5) i have sqlserver express service running, vss and sql server browser running.
I googled and searched for the solution and it says the authentication mode should be turned to mix mode form win authentication.
But from where. Have i missed some installation .I am able to connect to my other database from EMS.
Please help me out.
Thanks in advance
SJ
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May 25, 2007
I am trying to write an application for a MSSQL database, using SQL Express,and Visual Studio (Express edition)I tried to connect to an existing database (named testing) but to no avail.Visual Studio claims the database does not exist.Any ideas?TIA--Q: What is the difference between a mathematician and a philosopher?A: The mathematician only needs paper, pencil, and a trash bin for hiswork - the philosopher can do without the trash bin...
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May 27, 2007
Installation of SP2 in step "Feature Selection" shows SQLEXPRESS unchecked and can''t be edited/checked.
I tried it many times on different servers with different OSes, etc
Does it mean that SP2 for Expres Edition should be downloaded and applieв separately?
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Jul 19, 2006
Hello,I am just getting reaquainted with programming and all. I work in GIS mapping and am having diffilculty using a ASP.net internet Map site and adding records to a needed database.I would like to be able to add records to a linked SQLExpress table when the user clicks on a map location. I adapted the following code snippet from an example that does what I would like only using an .mdb file.CODE: // create connection to database var connection; connection = Server.CreateObject("ADODB.Connection"); connection.Open("Provider=SQLOLEDB.1;Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=OutdoorsExp;Data Source=NOLOGOSQLEXPRESS;"); status = "Can't access 'FishSQL' table."; // create recordset var recordset; recordset = Server.CreateObject("ADODB.Recordset"); recordset.CursorType = 1 recordset.LockType = 3; recordset.Open("dbo.FishTable", connection); status = "Can't append new record."; // append record for clicked location recordset.AddNew(); recordset.Fields("LongitudeI").Value = xco; recordset.Fields("LatitudeI").Value = yco; recordset.Update(); recordset.Close(); // release the .mdb file connection.Close();However, this does not add anything to the SQLEx table. What am I missing? I am thinking that it might have something to with the primary key.I had a table with way more columns then just lat/longs (as above) but only coded it to add data to the latitude and longitude fields. Nothing got added of course. Would have to add data to every field that doesnt allow nulls.How do I generate a random, unique ID for a primary key on the fly and for example add it to the appropriate column.Thanks you in adavnce for any insights.
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Jul 22, 2006
To be as brief as possible:I had Visual Studio 2005 installed with SQLExpress 2005. worked reallll good :) I needed to convert an excell spreadsheet to SQL, so I migrated it to Access. Then the upsizing wizard would not/could not create an sql table with the data. Just would not take the data when the table was created. Argh.FINALLY figured out that the SQLexpress 2005 doesn't come with import/export.So I uninstalled the sqlexpress and installed SQL 2000 - Developer. Veeola, able to convert and created the table I needed.Now Visual Studio 2005 won't let me touch the sql file, says it requires sql server express 2005.My ISP does not support SQL 2005 yet. Is there anyway to get Visual Studio 2005 to work with SQL 2000 (only?)If I install SQLExpress over again, will it create problems when I go to publish my website, and more importantly right now, will anything bad happen when I reinstall sql express, or do I need to uninstall SQL 2000 first? Thanks...
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Sep 29, 2006
hi:I set up a DSN via Adim tools, then I specify the connection string as "DSN=UserAppSample;Trusted_Connection=True".When I run my aspx page, it says: ERROR [42000] [Microsoft][ODBC SQL Server Driver][SQL
Server]Cannot open database "UserAppSample" requested by the login. The
login failed. It asks for login, but I use windows authentication. So what is wrong with this? :(
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May 4, 2007
** For those 20 users (or fewer) who've read http://forums.asp.net/thread/1692306.aspx, I'm sorry that I ask the same question.Like I said above, what is the limitation of SQLEXPRESS, in terms of performance and scability?I'm creating a new webboard application that will replace the old one. I intend it to handle 200 concurrent users + 70000 records (9 years of data)The current system use Microsoft Access, which is reaching it's limit in performance and size. I took a look in the SQL Server product information page : http://www.microsoft.com/sql/prodinfo/features/compare-features.mspx.It didn't tell me what I want, like how many connections it can handle, for example.If there are limitations that might cause my application to not reach the required specification (above), I may need to switch to MySQL. I've no intention buying a licensed SQL Server 2005.Thanks in advance.PS: Why there're so few users viewing my posts? Anyone know a more active forum that may help me?
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