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• Selector for a range of ids

  - by Kiffin

  I need to select all span tag elements within a div with an id list_{[0-9]}+ having the following form: <div id="list_1234" ...> <!-- can be nested multiple levels deep --> ... <span class="list_span">Hello</span> </div> How can I do that, e.g. without using jQuery? Is that possible?

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• Does Hotspot Shield hide my activity from my ISP?

  - by test

  Can Hotspot Shield make your activities invisible to your ISP? Or can they still see what you're downloading if they so choose? Here's the text from the product description: Hotspot Shield protects your entire web surfing session; securing your connection at both your home Internet network & Public Internet networks (both wired and wireless). Hotspot Shield protects your identity by ensuring that all web transactions (shopping, filling out forms, downloads) are secured through HTTPS. Hotspot Shield also makes you private online making your identity invisible to third party websites and ISP’s. I'm just not sure what it means by "invisible to third-party websites and ISPs" and if that means the ISP can still see what I'm doing.

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• Minimizing SQL transaction log file size on developer box running simple recovery model

  - by Anders Rask

  We have alot of SQL servers on development environment where we never take backup of the databases (TFS for code is enough). The (SharePoint) databases are all set to simple recovery model, but the log files, especially for the SharePoint configuration database is growing quite large and filling up our data drive on the SQL server. Since these log files are never used for anything, i would like advice on how to best minimize the size of these log files -or even disable them if possible. I'm not completely sure why the log files grow so large even on simple logging (checked for long running transactions (DBCC OPENTRAN) but found none). I guess the reason for the log files not being truncated is, that we dont take any backups, and hence Checkpoints arent reached. The autogrowth for log files are set to autogrow by 10% restricted to 2 gb, so i guess that is why Checkpoint (70%) arent reached here either. What would be the be best strategy to keep log files small (best case 0) without sacrificing performance (eg VLF fragmentation)?

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• SQL Server "Long running transaction" performance counter: why no workee?

  - by Sleepless

  Please explain to me the following observation: I have the following piece of T-SQL code that I run from SSMS: BEGIN TRAN SELECT COUNT (*) FROM m WHERE m.[x] = 123456 or m.[y] IN (SELECT f.x FROM f) SELECT COUNT (*) FROM m WHERE m.[x] = 123456 or m.[y] IN (SELECT f.x FROM f) COMMIT TRAN The query takes about twenty seconds to run. I have no other user queries running on the server. Under these circumstances, I would expect the performance counter "MSSQL$SQLInstanceName:Transactions\Longest Transaction Running Time" to rise constantly up to a value of 20 and then drop rapidly. Instead, it rises to around 12 within two seconds and then oscillates between 12 and 14 for the duration of the query after which it drops again. According to the MS docs, the counter measures "The length of time (in seconds) since the start of the transaction that has been active longer than any other current transaction." But apparently, it doesn't. What gives?

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• Automatically keeping two excel data tables in-sync (w/out VBA)

  - by Neil

  I'm putting together a workbook for tracking a stock portfolio. The primary sheet contains a table with the list of the transactions. From this I would like to create an overview table on another sheet with only one row per unique stock symbol that includes things like cost basis, returns, etc. The problem is that nothing I've tried updates the overview table correctly when rows are added to the transaction table. The closest I've got is something like the following: http://www.get-digital-help.com/2009/04/14/create-a-unique-alphabetically-sorted-list-extracted-from-a-column/ However, this requires applying that formula to every cell in the primary column of the overview sheet. And even then the range of the table isn't extended down to include new rows as they become valid. Essentially I'm looking for a way that auto-adds rows to a table and copies the formula based on a different table changing without using VBA. Trivial example data Sheet1 Symbol Type Shares Price F Buy 100 12 MSFT Buy 100 25 MSFT Sell 50 28 F Buy 100 16 Sheet2 Symbol Quantity F 200 MSFT 50

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• Incremental backups in Quickbooks 2005

  - by Nathan DeWitt

  My church uses Quickbooks 2005. They have a backup to a 512 MB thumbdrive. They have been backing up about every week for the past 18 months. The filesize of the backups have grown from 14 MB to about 23 MB. I was planning on giving them a 1 or 2 GB thumb drive and calling it a day, but when I dumped this info into Excel and projected out the growth rate, I found that we'll hit 1 GB in July, and 10 GB in about another 18 months, and then 100 GB about 18 months after that. It looks to me like Quickbooks saves all the transactions with every backup. Is there a way to force incremental backups? If this is the way it is, that's fine, but I'd rather not keep buying another order of magnitude of storage space every 18 months. Can I safely delete the previous backups, and just keep the recent 2 or 3 months worth? Thanks.

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• Anyone know where I can download a copy of Sun Java System Active Server Pages 4.0.3 for Solaris

  - by ewengcameron

  I've contacted Sun regarding this and they have told me that the download is no longer available as Active Server Pages 4.0.3 is now End Of Life. We need to upgrade our server to 4.0.3 to acheive PCI-DSS compliance. Anyone know of a site where I can download older copies of Sun files? Sun offer 4.0.1 and 4.0.2 to download but not 4.0.3 which is going to cause problems come October when Visa stops accepting transactions from non PCI compliant servers. If Sun kept their naming system consistent across versions, the file would be called "sjsasp403-sol-sparc.tar". I know the real solution is to upgrade every site on the server to use a different server language, i.e. PHP, and in the long term, this is our goal but we have over 100 sites requiring upgrading and its not a viable solution to get this done before October.

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• How to consolidate servers with the not-very-strong infrastructure

  - by Sim

  All, Situation We are in retail industry with about 10 distributors and use Solomon as the standard ERP for all our systems Each distributor has 1 HQ and 5 - 10 branches, each branch has their own server (Windows 2000/XP/2003 + Solomon + another built-in POS system) Everyday, branches has to extract data and send (via email/Skype) to HQ for data consolidation purpose When we first deployed our ERP, the infrastructure (e.g. Internet connection) wasn't reliable enough. That's why we went with the de-centralized model (each branch got their own server) Now, the infrastructure is mature already. And we need to consolidate data more quickly (not from branches -- HQ -- our company but something like HQ -- our company only) Goal We just have Solomon servers in distributor HQ. All the transactions in branches (retrieved from POS) will by synchronized with HQ server directly) There is a backup plan just in case the Internet goes down, or HQ server goes down Question With the above question, could you guys suggests some model for me ? Should we use Terminal services, any other solutions ? Any watchout/suggestions ? Any good article to read 'bout this ? Thanks a lot

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• Exchange 2003 ActiveSync fine but GAL lookups not working

  - by Daniel Lucas

  We have Exchange 2003 SP2 and use ActiveSync for our mobile devices (iOS and sever Android versions). Everything works except for GAL lookups and we've confirmed that the devices and client versions we are trying it on are supposed to support it. The symptom is different depending on the client, but there is never an error. In a nutshell, lookups return no results. This was working previously and we aren't sure what has changed. Are there logs in Exchange or IIS that will allow me to see GAL lookup transactions? Could it be a GAL permissions issue? (No issues with GAL in Outlook) Could it have been caused by upgrading our DCs to 2008 and increasing the forest/domain functional levels?

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• SqlServer2005 Enterprise Fast Recovery, SqlAgent Availability, and Replication

  - by automatic

  I have a database under SqlServer2005 Enterprise 64bit sp3, that is in phase 3 of 3 of recovery after a reboot without normal shutdown. It looks like with fast Recovery, the database became available when recovery moved into phase 3. However, it seems (based on message in SqlAgent log), that SqlAgent is "started" but not available to run jobs until recovery completes. I have other databases on the same server that are transactional publications. It seems to me that if I let users update the published databases, transactions will start to build up in the log, but won't be moved to the distribution database or onto the subscribers because SqlAgent isn't running jobs. Should I be overly concerned about performing updates before

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• Recommended Setup

  - by Chris Ryan

  I have been running into issue with my MSSQL Database setup with speed. Here is my scenario. About 100M Rows Average: 1k Updates Per Second Hard Drives: RAID 10 SSD MDF --Active Time: 0 Log Drives: 1 SSD LDF - Simple Recovery --Active Time 99.9 --Queue: 8 I do not need a back up of the log so it is set to simple recovery but my bottleneck is still at my log. I get high WAITLOG times and thus it can not update any faster. I can't do bulk updates/transactions and each update needs to be one at a time. Is my only option to increase write performance of the log drives, add a RAID drives? Any suggestions on increasing the performance?

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• Is there a convenient way to manually copy the Log Shipping *.trn files from one SQL 2008 server to

  - by Rick

  We have a remote SQL 2008 server (ServerB) that needs to keep a warm (15 minute interval is OK) copy of production data (ServerA). ServerA is also SQL 2008. Log Shipping looks like it will do the job. We can only get to the destination ServerB with remote desktop. Is there a way to set this up when we can't get to both servers from one Management Studio? We want to be able to temporarily (until a VPN is setup between our network and the ServerB network) manually export a small .trn file, copy it via remote desktop to ServerB and then manually import those transactions from the .trn file. My supervisor says he saw a post saying this is possible. We were just trying to avoid doing a full database backup and copying that every time. Thanks in advance for any suggestions on this.

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• MSDTC on server x is unavailable

  - by Fishcake

  I have Windows Server 2003 running in a virtual machine, running some software that is trying to update a database within transactions on my Windows 7 machine (the host for the VM). On my host I have edited the settings for Local DTC by selecting the following Client and Administration Allow Remote clients Allow Remote administration Transaction manager communication Allow inbound Allow outbound No authentication required However when I try to run the software I receive this error: MSDTC on server 'x' is unavailable. Whilst searching for fixes most just suggest making sure the service is running which I have. Cheers!

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• Rules to choose hardware for OLTP systems (sql server)

  - by Roman Pokrovskij

  Ok. We know database size, number of concurrent users, number of transactions per minute; should choose number of processors, RAID, RAM, mirroring and clustering. There are no exact rule.. but may be there are no rules at all? In my practice in every case I have "legacy" system, and after some inspections and interview I can form an opinion how hardware and design can be improved. But every time when I meet "absolutely" new system (I guess there are no new systems, but sometimes are such tasks) I can't say anything trustful. So I'm interesting how people deal with such tasks? They map task on theirs experience or have some base formulas?

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• MySQL Windows vs. Linux: performance, caveats, pros and cons?

  - by gravyface

  Looking for (preferrably) some hard data or at least some experienced anecdotal responses with regards to hosting a MySQL database (roughly 5k transactions a day, 60-70% more reads than writes, < 100k of data per transaction i.e. no large binary objects like images, etc.) on Windows 2003/2008 vs. a Debian-based derivative (Ubuntu/Debian, etc.). This server will function only as a database server with a separate Web server on another physical box; this server will require remote access for management (SSH for Linux, RDP for Windows). I suspect that the Linux kernel/OS will compete less than the Windows Server for resources, but for this I can't be certain. There's also security footprint: even with Windows 2008, I'm thinking that the Linux box can be locked down more easily than the Windows Server. Anyone have any experience with both configurations?

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• PostgreSQL 9.1 on Ubuntu Lucid fails to start - how to debug?

  - by Tom Fakes

  I'm using Vagrant with Chef Solo to setup a Lucid 64 box. I'm using a Chef recipe to install PostgreSQL 9.1 from Martin Pitt's backports. The install goes ok until the point where the database is started with /etc/init.d/postgresql start There's a log pause and the command fails. If I run pg_ctl manually, the database starts! The entire contents of my postgresql-9.1-main log file is: 2012-05-07 11:01:18 PDT LOG: database system was shut down at 2012-05-07 11:01:16 PDT 2012-05-07 11:01:18 PDT LOG: database system is ready to accept connections 2012-05-07 11:01:18 PDT LOG: autovacuum launcher started 2012-05-07 11:01:18 PDT LOG: incomplete startup packet 2012-05-07 11:01:26 PDT LOG: received fast shutdown request 2012-05-07 11:01:26 PDT LOG: aborting any active transactions 2012-05-07 11:01:26 PDT LOG: autovacuum launcher shutting down 2012-05-07 11:01:26 PDT LOG: shutting down 2012-05-07 11:01:26 PDT LOG: database system is shut down I've tried to change the postgresql config file to get more info into the logfile, but that hasn't worked at all. How do I debug this to find out what is failing so I can fix it?

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• Troubleshoot odd large transaction log backups...

  - by Tim

  I have a SQL Server 2005 SP2 system with a single database that is 42gigs in size. It is a modestly active database that sees on average 25 transactions per second. The database is configured in Full recovery model and we perform transaction log backups every hour. However it seems to be pretty random at some point during the day the log backup will go from it's average size of 15megs all the way up to 40gigs. There are only 4 jobs that are scheduled to run on the SQL server and they are all typical backup jobs which occur on a daily/weekly basis. I'm not entirely sure of what client activity takes place as the application servers are maintained by a different department. Is there any good way to track down the cause of these log file growths and pinpoint them to a particular application, or client? Thanks in advance.

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• Creepy MySQL error during hard work

  - by Kiewic

  Hi, I have a MySQL database installed on a OpenSuse 11.1 server (it is a Bitnami image). The database works fine, it can stay many days without any error, but when MySQL receives a huge amount of transactions, it dies immediately. The next screen shows the error: Moreover, I don't know how to restart MySQL. I have tried this: /opt/bitnami/mysql/bin/mysqld start But it doesn't work, that gives me the next output: 110209 17:09:01 [ERROR] Fatal error: Please read "Security" section of the manual to find out how to run mysqld as root! 110209 17:09:01 [ERROR] Aborting 110209 17:09:01 [Note] /opt/bitnami/mysql/bin/mysqld.bin: Shutdown complete It doesn't matter which kind of statements are executing, if they are a huge amount, MySQL dies. The MySQL server version is 5.1.30 What can be causing these sudden failures?

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• mysql cluster virtual ip

  - by user225995

  I am new in mysql cluster and mysql cluster and versions are not my choice. I setup four machines. Two of them manager , Two of them data cluster (ndb and mysqld). And i integrate with mysql utilities master/slave configuration. Everything working fine. Mysql version 5.6.17, ndb 7.3.5 , servers ubuntu 14.04. There will be no much transactions. The only important thing is HA. Everythings must be double. My problem is virtual ip. Since I have only one farm which have master slave configuration, how can i do it without proxy? If I must use proxy which proxy is better?

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• innodb memory usage mysql

  - by Tiddo

  I have a small vps, with only 256mb of ram, with maximum burst up to 512mb. When I configure my vps without innodb, it only uses 130 mb of ram, so that is no problem for me. But when I turn on innodb, The memory usage grows to about 300-400 mb. Is it possible to run innodb such that I won't exceed the 256mb? preferably I don't want to use more than 100mb for innodb. I already came across some sites which said I could limit the memory usage, but if I limit it to only 100mb will the db run well enough? (compared to for example the MyISAM storage engine) If 100mb is to little memory for innodb, can you recommend me any other storage engine which supports transactions?

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• SQL database testing: How to capture state of my database for rollback.

  - by Rising Star

  I have a SQL server (MS SQL 2005) in my development environment. I have a suite of unit tests for some .net code that will connect to the database and perform some operations. If the code under test works correctly, then the database should be in the same (or similar) state to how it was before the tests. However, I would like to be able to roll back the database to its state from before the tests run. One way of doing this would be to programmatically use transactions to roll back each test operation, but this is difficult and cumbersome to program; it could easily lead to errors in the test code. I would like to be able to run my tests confidently knowing that if they destroy my tables, I can quickly restore them? What is a good way to save a snapshot of one of my databases with its tables so that I can easily restore the database to it's state from before the test?

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• MySQL Procedure causing Dead Lock

  - by Phanindra

  I am using MySQL server 5.1.45. And I am having a procedure with huge business logic. With less number of invocation of this procedure, my application is working fine, but when the number of invocations are getting increased this procedure is throwing Lock wait timeout exception. My Question is will Procedure creates temporary tables dynamically..? As in my procedure I am using Truncate statement which may cause to release all transactions. I am not DBA, please help me out of this.

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• Pivot tables in excel

  - by andreas

  Hey GUYS i have my account bank account statement and what i wanna do is group the description oof transactions together with their debit or credit and sum their total . So that i can see that for ebay.com my total debit was 2000 $ etc... no the data are like this (btw how do you format this?) Description Debit Credit A 1 B 1 A 1 B 1 C 1 D 1 A 1 ETC.... what i wanna do is using a pivot table Description Debit Credit A 3 B 2 C 1 D 1 I can seem to be able to do that as i cant group the description and have additional debit and credit columns.....as i get them all in rows with blanks

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• If a SQL Server Replication Distributor and Subscriber are on the same server, should a PUSH or PULL subsciption be used?

  - by userx

  Thanks in advance for any help. I'm setting up a new Microsoft SQL Server replication and I have the Distributor and Subscriber running on the same server. The Publisher is on a remote server (as it is a production database and MS recommends that for high volumes, the Distributor should be remote). I don't know much about the inner workings of PUSH vs PULL subscriptions, but my gut tells me that a PUSH subscription would be less resource intensive because (1) the Distributor is already remote, so this shouldn't negatively effect the Publisher and (2) pushing the transactions from the Distributor to the Subscriber is more efficient than the Subscriber polling the Distribution database. Does any one have any resources or insight into PUSH vs PULL which would recommend one over the other? Is there really going to be that big of a difference in performance / reliability / security?

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• Controlling access to my API using SSH public key (not SSL)

  - by tharrison

  I have the challenge of implementing an API to be consumed by relatively non-technical clients -- pasting some sample code into their WordPress or homegrown PHP site is probably as much as we can ask. Asking them to install SSL on their servers ain't happening. So I am seeking a simple yet secure way to authenticate API clients. OAuth is the obvious solution, but I don't think it passes the "simple" test. Adding a client id and hashed secret as a parameter to the requests is closer -- it's not hard to do md5($secret . $client_id) or whatever the php would be. It seems to me that if client requests could use the same approach as SSH public keys (client gives us a key from their server(s) there should be some existing magic to make all of the subsequent transactions transparently work just as regular HTTP API requests. I am still working this out (obviously :-), so if I am being an idiot, it would be nice to know why. Thanks!

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