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• How to run a loop of queries in access?

  - by tksy

  Hi I have a database with a table which is full of conditions and error messages for checking another database. I want to run a loop such that each of these conditions is checked against all the tables in the second database and generae a report which gives the errors. Is this possible in ms access. For example, querycrit table id query error 1 speed<25 and speed>56 speed above limit 2 dist<56 or dist >78 dist within limit I have more than 400 queries like this of different variables. THe table against which I am running the queries is records table id speed dist accce decele aaa bbb ccc 1 33 34 44 33 33 33 33 2 45 44 55 55 55 22 23 regards ttk

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• ASP.NET connection pool question

  - by James Evans

  Does the same connection string used on two different physical servers hosting different web applications that talk to the same database draw connections from the same connection pool? Or are pooled connections confined to at the application level? I ask because I inherited a 7 year old .NET 1.1 web application which is riddled with in-line SQL, unclosed and undisposed sql connection and datareader objects. Recently, I was tasked to write a small web app that is hosted on another server and talks to the same database and therefore used the same database connection string. I created a LINQ object to read and write the one table required by the app. Now the original .NET 1.1 app is throwing exceptions like "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." Maybe these are unreleated, but wanted to get your opinions to make sure I cover all my bases. Thanks!

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• SQL Server compatibility mode not logged

  - by smithsi

  I've been researching a problem which was diagnosed as someone changing the compatability mode for the SQL Server database from 80 to 90 on SQL Server 2005 for a database which had it's compatibility mode set to 80 due to legacy stored procedure code not having been upgraded. I found that when changing the compatibility mode this is not logged in the SQL Server logs. Has anyone seen this issue and is this a bug or is there an alternative method to track these changes?

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• How to automatically change a parameter in Reporting Services when another is changed?

  - by Victor Rodrigues

  I have a 'Product' parameter in my report. Depending on the product the user chooses, it will call the report generator stored procedure from a different data source. Looking at this article, I've found how to do the first part of this solution. I've created two internal parameters, Server and Database, and the connection string will use them to connect to the right database. But I need to set this two parameters when the user chooses a product. How could I do this? (If @Product = X) = @Server = Y, @Database = Z

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• question about frequency of updating access

  - by I__

  i have a table in an access database this access database is used on a regular basis, basically from 9-5 someone else has a copy of this exact table. sometimes records are added, sometimes deleted, and sometimes data within the records is updated. i need to update the access database table with the offsite table every hour or so. what is the best algorithm of updating the data? there are about 5000 records. would it severely lock up the table for a few seconds every hour? i would like to publicly apologize for my rude comment to david fenton

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• Backing up MySQL DB wtih mixture of innodb and myisam tables

  - by madphp

  I have a large database (almost 1GB) and it has a mixture of innodb and myisam tables. Does anyone have any general tips when backing it up or more specifically the commands i should send to mysqldump. I see that i should lock myisam tables, and that single transactions for innodb, but what if i have both. Also, what is actually happening when i lock an entire (very big) table on a production database.

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• iphone sqlite3_column_text issue

  - by Ruchir Shah

  I have a column in sqlite3 table. Column has values like 1 ½” 1 ¾” 2 ½” etc. Column has VARCHAR datatype. I am using this code. pref_HoseDiameter = [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 2)]; Now, when I am fetching these values from database, I am getting pref_HoseDiameter string values like this: 1 1/2" 1 3/4" 2 1/2" How to fetch those values as they are in database or how to convert them that look like database values. Help would be appreciated. Thanks in advance.

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• at what point in the test cycle are the test results written to a file?

  - by jcollum

  I'd like to take the entirety of the test results and publish it to a database. Got the database, got the table, got the script to publish it. Question is, at what point in the ms-test cycle would the results be fully written to the file? And how can I get the path to that file? I'd especially like to grab the "TextMessages" node and put it into my database. I assumed AssemblyCleanup, but the TestContext doesn't seem to be available then.

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• unable to install anything on ubuntu 9.10 with aptitude

  - by Srisa

  Hello, Earlier i could install software by using the 'sudo aptitude install ' command. Today when i tried to install rkhunter i am getting errors. It is not just rkhunter, i am not able to install anything. Here is the text output: user@server:~$ sudo aptitude install rkhunter ................ ................ 20% [3 rkhunter 947/271kB 0%] Get:4 http://archive.ubuntu.com karmic/universe unhide 20080519-4 [832kB] 40% [4 unhide 2955/832kB 0%] 100% [Working] Fetched 1394kB in 1s (825kB/s) Preconfiguring packages ... Selecting previously deselected package lsof. (Reading database ... ................ (Reading database ... 95% (Reading database ... 100% (Reading database ... 20076 files and directories currently installed.) Unpacking lsof (from .../lsof_4.81.dfsg.1-1_amd64.deb) ... dpkg: error processing /var/cache/apt/archives/lsof_4.81.dfsg.1-1_amd64.deb (--unpack): unable to create `/usr/bin/lsof.dpkg-new' (while processing `./usr/bin/lsof'): Permission denied dpkg-deb: subprocess paste killed by signal (Broken pipe) Selecting previously deselected package libmd5-perl. Unpacking libmd5-perl (from .../libmd5-perl_2.03-1_all.deb) ... Selecting previously deselected package rkhunter. Unpacking rkhunter (from .../rkhunter_1.3.4-5_all.deb) ... dpkg: error processing /var/cache/apt/archives/rkhunter_1.3.4-5_all.deb (--unpack): unable to create `/usr/bin/rkhunter.dpkg-new' (while processing `./usr/bin/rkhunter'): Permission denied dpkg-deb: subprocess paste killed by signal (Broken pipe) Selecting previously deselected package unhide. Unpacking unhide (from .../unhide_20080519-4_amd64.deb) ... dpkg: error processing /var/cache/apt/archives/unhide_20080519-4_amd64.deb (--unpack): unable to create `/usr/sbin/unhide-posix.dpkg-new' (while processing `./usr/sbin/unhide-posix'): Permission denied dpkg-deb: subprocess paste killed by signal (Broken pipe) Processing triggers for man-db ... Errors were encountered while processing: /var/cache/apt/archives/lsof_4.81.dfsg.1-1_amd64.deb /var/cache/apt/archives/rkhunter_1.3.4-5_all.deb /var/cache/apt/archives/unhide_20080519-4_amd64.deb E: Sub-process /usr/bin/dpkg returned an error code (1) A package failed to install. Trying to recover: Setting up libmd5-perl (2.03-1) ... Building dependency tree... 0% Building dependency tree... 50% Building dependency tree... 50% Building dependency tree Reading state information... 0% ........... .................... I have removed some lines to reduce the text. All the error messages are in here though. My experience with linux is limited and i am not sure what the problem is or how it is to be resolved. Thanks.

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• updating batches of data

  - by gaponte69

  I am using GridView in asp .net and editing data with edit command field property (as we know after updating the edited row, we automatically update the database), and I want to use transactions (with begin to commit statement - including rollback) to commit this update query in database, after clicking in some button (after some events for example), not automatically to insert or update the edited data from grid directly to the DB...so I want to save them somewhere temporary (even many edited rows - not just one row) and then to confirm the transaction - to update the real tables in database... Any suggestions are welcomed... I've used some good links, but very helpful, like: http://www.asp.net/learn/data-access/tutorial-63-cs.aspx http://www.asp.net/learn/data-access/tutorial-66-cs.aspx etc...

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• When I need to create a schedule for Snapshot Agent for push transactional replication?

  - by THEn

  I am working with transactional database replication for push subscriber. My database structure will not be changed soon. Do I have to use "Schedule the Snapshot Agent"? What is the main reason to enable "Schedule the Snapshot Agent" option in snapshot agent in MSSQL Server 2005?

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• Best practice. Do I save html tags in DB or store the html entity value?

  - by Matt

  Hi Guys, I was wondering about which way i should do the following. I am using the tiny MCE wysiwyg editor which formats the users data with the right html tags. Now, i need to save this data entered into the editor into a database table. Should I encode the html tags to their corresponding entities when inserting into the DB, then when i get the data back from the table, not have the encode it for XSS purposes but I'd still have to use eval for the html tags to format the text. OR Do i save the html tags into the database, then when i get the data back from the database encode the html tags to their entities, but then as the tags will appear to the user, I'd have to use the eval function to actually format the data as it was entered. My thoughts are with the first option, I just wondered on what you guys thought.

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• How to change a Datasource's username/password at runtime in a J2EE app?

  - by Toto

  I've deployed a web-module which connects to the database via a datasource configured in the J2EE application server. Currently, the user/password for the database connection is set in the proper J2EE application server's datasources configuration file. I want to change during runtime the datasource's user/password. (e.g.: implement a new web form in which the user is asked to enter de user/password to be used in the database connection). Is there a standard way to do that in J2EE applications or it depends on the J2EE application server? In this case I'm using Orion application server.

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• Dollar ($) sign in password string treated as variable

  - by ncatnow

  Spent some time troubleshooting a problem whereby a PHP/MySQL web application was having problems connecting to the database. The database could be accessed from the shell and phpMyAdmin with the exact same credentials and it didn't make sense. Turns out the password had a $ sign in it: $_DB["password"] = "mypas$word"; The password being sent was "mypas" which is obviously wrong. What's the best way to handle this problem? I escaped the $ with a \ $_DB["password"] = "mypas\$word"; and it worked. I generally use $string = 'test' for strings which is probably how I avoided running into this before. Is this correct behavious? What if this password was stored in a database and PHP pulled it out - would this same problem occur? What am I missing here...

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• Schema changes with replication

  - by Even Mien

  What are the steps to make a schema change to a SQL Server 2005 database using transactional replication? I'm trying to add a database column. I thought if I removed the article for the table, made the schema change, and then added the article for the table back that the schema change would replicate. I am now getting the following error every minute or so: SQL Server errors Replication-Replication Distribution Subsystem: agent [jobname] failed. Invalid column name 'NewColumn'.

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• Get a list of documents from Mongo DB

  - by Andrei Neagu

  Hello, I want to do something like this: List<int> fff = new List<int>(); fff.Add(1); fff.Add(2); fff.Add(5); Mongo m = new Mongo(); m.Connect(); var dataBase = m.GetDatabase("database"); var collection = dataBase.GetCollection("coll"); IMongoQuery queryable = collection.AsQueryable(); MongoQueryProvider prov = new MongoQueryProvider(collection); var query = new MongoQuery(prov); var ffppp = from p221 in query where fff.Contains((int)p221["oid"]) select p221; This throws this error : The method 'Contains' could not be converted into a constant. I saw that mongo has an operator $in. Does any one know how can I use it from c#? (http://www.mongodb.org/display/DOCS/Advanced+Queries) Thanks

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• Excel File opened under Ubuntu, read by R, OpenOffice

  - by Vishal Belsare

  I have a bunch of Excel files which are updated on a daily basis on a Windows machine. I transfer them to a Ubuntu machine and want to open them there. Specifically, I want to read the files as a database under R. A couple years ago, I used ODBC under a Windows machine to open Excel files through R. Is there any way, I can do this with R under Ubuntu? I could make a database .ODB file for the corresponding XLS files using OpenOffice, but I don't know of a way to connect to a .ODB database. OpenOffice seems to have ways to connect TO databases, but no way to connect to ODB. Thanks for any potential solutions.

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• Idiomatic way to read .env variables in Ansible?

  - by Arms

  I'm provisioning a Vagrant box with Ansible, and using Benno Joy's MySQL role to setup MySQL (including creating a database and users.) The database name and credentials are stored in a .env file in the project's root. What would be the idiomatic way to use these variables when provisioning MySQL? Should I write a custom script that generates a YAML file from my .env, and then use the include_vars module? Or is there a simpler way?

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• ASP.NET MVC User authentication - why it should be so sophisticated?

  - by Serge

  Hello guys, I'm trying to use ASP.NET MVC to my new project and have been expected that the user authentication should be rather simple there. My goal is to have a separate user database table in my main database. I thought that the SqlTableProfileProvider should be the solution. So I added the corresponding table into my database and changed the web.config file. But it seems no matter what I change there, my web application still using the default authentication (via ASPNETDB.mdf file). What could be the problem? (my web.config file beginning is:)

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• How to programmatically change a data cell of Ms Access using VB.Net?

  - by manuel

  I have a Microsoft Access database file connected to VB.NET. In the database table, I have a 'No.' and a 'Status' column. Then I have a textbox where I can input an integer. I also have a button, which will change the data cell in 'Status' where 'No.' = textbox.Text(), when I click it. Let's say I want the 'Status' cell to be changed to "Low". What codes should I put in the button_Click event handler? Here is the codes I used to retrieve and display the database table. Public Class theForm Dim con As New OleDb.OleDbConnection Dim ds As New DataSet Dim daTitles As OleDb.OleDbDataAdapter Private Sub theForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load con.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=|DataDirectory|\db1.mdb" con.Open() daTitles = New OleDb.OleDbDataAdapter("SELECT * FROM Titles", con) daTitles.Fill(ds, "Titles") DataGridView1.DataSource = ds.Tables("Titles") DataGridView1.AutoResizeColumns() End Sub

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• How to connect to Oracle 10g server from client machines

  - by Tareq

  I have installed Oracle 10g in one of my office's computer. I want to keep this as database server. I am developing a .net project which will communicate with the database server from client machine and from the server machine. I success to communicate with oracle from server machine but not from client machine using the .net project. The connection code is as follows: Public OraConn As ADODB.Connection OraConn = New ADODB.Connection OraConn.Provider = "OraOLEDB.Oracle" OraConn.ConnectionString = "Data Source=<my_database_name>;User ID=<my_user>;Password=<my_pass>;" OraConn.Open() Please tell me step by step procedures how can I connect to my server database from my .net client program resides on client machine ? Thanks in Advance.

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• How change column names randomly in gridview?

  - by James123

  I am struggling to show different views of gridview with database values. Here is my requirement. Database Table: I need to show one drop downlist with three values 1,2,3. If user selects 3 i Need to show a grid like below Age,AnnualSales and Assortment are names which are coming dynamically from database. High,Medium and Core all are values Here my question is I need to show same attribute names. Like If the name changes from "Assortment" to "Location" I need to show it in different page index . In page index 2 i need to show like below. Please help with solution

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• Reading Character from Image

  - by Chinjoo

  I am working on an application which requires matching of numbers from a scanned image file to database entry and update the database with the match result. Say I have image- employee1.jpg. This image will have two two handwritten entries - Employee number and the amount to be paid to the employee. I have to read the employee number from the image and query the database for the that number, update the employee with the amount to be paid as got from the image. Both the employee number and amount to be paid are written inside two boxes at a specified place on the image. Is there any way to automate this. Basically I want a solution in .net using c#. I know this can be done using artificial neural networks. Any ideas would be much appreciated.

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• PHP auto refresh page without losing user input

  - by Tony

  I'm working on a PHP collaboration software project. I have a page that shows the latest updates from other users who are adding content to the database, but also has a form input to allow the user to enter text. I am currently using this code to refresh the page automatically every 30 seconds: header('Refresh: 30'); The problem is that the header code refreshes the entire page, and not just what is pulled from the database. Is there any PHP code that will just pull any new data from the database without refreshing the entire page? If someone could point me in the right direction I'd appreciate it.

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• SqlBulkCopy unusual TimeOut Error

  - by ChrisHDog

  I have a SqlBulkCopy operation that is taking data from an MS-Access 2007 database (via OleDbConnection) and using SqlBulkCopy to transfer that data to a SQL Server database. This has previously been working and continues to work for one MS-Access database, but not the other. I get the error message: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding. It is hard to believe it is a timeout ast the oledbCommand.CommandTimeout = 0 the sqlBulkCopy.BulkCopyTimeout = 0 and on either side (MS-Access and SQL Server the timeouts have now been set to 0). Are there other issues/exceptions that the above error message could be hiding? Is there a way to determine what the base cause of a sqlBulkCopy.WriteToServer exception is (there doesn't appear to be any inner exceptions etc...)

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