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adalf的小技巧: 二月 2015
http://adalf0722.blogspot.com/2015_02_01_archive.html
160; 最近要測試Excel的Power Map,一般系統不會記錄使用者的地理資訊,頂多記IP吧,稍微查了 Get and prep your data for Power Map. Latitude/Longitude pair, City, Country/Region, Zip code/Postal code, State/Province, or Address. 160; 用經緯度分析資料除非資料量非常大,要不然量小看起來沒什意義,那收斂到City感覺比較合理,所以找了一下如何用IP轉City,當然網上一堆服務可以用,但我不想讓DB層對外,想看有沒有現成的對應表可用,結果 DB-IP - IP Geolocation and Network Intelligence. 有現成的DB可下載,免費版的可就可對應到city耶,五百萬筆資料應該也夠測試了 ,於是就下載來試試. 標籤: SQL Server 2008 R2. 訂閱: 文章 (Atom). SQL Server 2008 R2. SQL Server 2008 MCM Readiness Videos.
adalf的小技巧: [SSIS]OLE DB Source連Oracle的錯誤Cannot retrieve the column code page info from the OLE DB provider.
http://adalf0722.blogspot.com/2015/03/ssisole-db-sourceoraclecannot-retrieve.html
SSIS]OLE DB Source連Oracle的錯誤Cannot retrieve the column code page info from the OLE DB provider. Cannot retrieve the column code page info from the OLE DB provider. If the component supports the "DefaultCodePage" property, the code page from that property will be used. Change the value of the property if the current string code page values are incorrect. If the component does not support the property, the code page from the component's locale ID will be used. 標籤: SQL 2014. 訂閱: 張貼留言 (Atom).
adalf的小技巧: 十一月 2014
http://adalf0722.blogspot.com/2014_11_01_archive.html
MySQL]log queries not using indexes與slow query log同時啟用會造成大量的slow query log. 160; 話說管理的MySQL有啟用slow query log,然後發現每天的成長量非常的大 ,每天增加1G吧,量太大了對於分析slow query非常耗時,仔細分析又發現幾乎所有的Query紀錄進去了 ,這不太對啊,log query time設1秒,照理說超過1秒才會記錄,但幾乎全紀錄,毫秒微秒級的也記錄作什,看avg、95%跟前五名的都是毫秒級回應,收到這種分析幾乎沒什用. MySQL]Account user name@host name does not exists but it still has privileges defined for following objects:database name. 猛然想起mysql.db好像也要刪除,所以若不用drop user而直接清除user資料表,別忘記db資料表也要清喔,完整的刪除方式如下. Expire logs days=14 . 後來查到可以用 cat -A file.
adalf的小技巧: 六月 2014
http://adalf0722.blogspot.com/2014_06_01_archive.html
160; 第一次看到MySQL可以用Order By Null時很訝異,而且這樣用並不是要將Null排在最前還是最後,而是不需要排序的意思,但要配合Group By使用. 160; 像SQL Server不支援這樣寫;Oracle可以這樣寫Order By Null First或Order By Null Last,看是Null值要放前放後而已. 160; MySQL的Group By有隱含排序的效果,意思就是會花額外的資源去做排序,這會有效能的疑慮,我自己測試在Group By Table1.Col, Table2.Col這種情況下,最為明顯,在執行計畫Extra欄位可以看到Using filesort,這就表示有額外去作排序喔,可參考下面的例子. 因為要ETL到SQL Server上,才發現Express不支援SQL Server Agent,只好用工作排程器加SQLCMD來解決. 在SQL Server上建Linked Server到MySQL很簡單,但在ETL的過程中有時會遇到錯誤. SELECT id FROM test.t1;'. MySQL][ODBC]...
adalf的小技巧: 一月 2015
http://adalf0722.blogspot.com/2015_01_01_archive.html
MySQL]ERROR 1010 (HY000): Error dropping database (can't rmdir './test/', errno: 17). Bug #62443 "DROP DATABASE test" fails with error 17. 訂閱: 文章 (Atom). SQL Server 2008 R2. MySQL]ERROR 1010 (HY000): Error dropping database. SQL Server 2008 MCM Readiness Videos. SQL Server Best Practices. 德瑞克:SQL Server 學習筆記. The Will Will Web. 本站的提供的資料僅供參考與個人備忘之用。如有任何不妥,麻煩請通知小弟處理,感謝!
adalf的小技巧: [Oracle]分批刪除資料
http://adalf0722.blogspot.com/2015/05/oracle.html
Set Serveroutput On;. V DATE DATE;. Type V Rowid Is Table Of Varchar2(100) Index By Binary Integer;. Var Rowid V Rowid;. Cursor V Cur Is Select /* parallel(a,2)*/Rowid From Hr.Employee Where LoginDate = V Date;. V Date := To Date(To Char(Trunc(Sysdate-60),'YYYY-MM-DD HH24:MI:SS'),'YYYY-MM-DD HH24:MI:SS');. Open V Cur ;. Fetch V Cur Bulk Collect. Into Var Rowid Limit 10000;. Forall I In 1 . Var Rowid.Count. Delete From Hr.Employee Where Rowid =Var Rowid(I);. Close V Cur;. 訂閱: 張貼留言 (Atom). The Will Will Web.
adalf的小技巧: 十二月 2014
http://adalf0722.blogspot.com/2014_12_01_archive.html
MySQL]innodb stats on metadata記得要關閉. 最近有個log DB量實在有點大,其中一個大Table每天新增三千萬筆資料,目前Table逼近100G,不得已只好拆成Partitioning Table,以方便清除歷史資料及查詢。 以MySQL來說,Partitioning Table效能及操作方便性沒有Oracle及SQL Server來的好,分區太多會影響效能,若按天拆分,會有90個分區,因User要求保留三個月資料,後來與User商量的結果,保留近七天的熱資料在分區表上,七天以前的冷資料會每天拆成一個表,這樣要查資料都還調的到. 等我拆完表後,發現一個奇怪的現象,就是Response慢慢慢,比不拆前還慢. 我還沒Query怎麼會慢成這樣,此時忽然想起之前有看到一篇 Solving INFORMATION SCHEMA slowness. 65292;關掉innodb stats on metadata就OK囉. Set global innodb stats on metadata=0;. Innodb stats on metadata=0. 160; &...
adalf的小技巧: 五月 2014
http://adalf0722.blogspot.com/2014_05_01_archive.html
160; 可參考 How to Use MySQL and Microsoft PowerPivot Together. 160; 因為得撰寫SQL來撈取資料,所以可以用SQL組成一個扁平化的大表,那如果想要照星狀結構那樣匯入Dimension及Fact Table何較快速的載入其他資料表呢. 160; 假設已經成功匯入一個Table了,在PowerPivot工具列選[設計]的[現有連接]. 160; 想看效果可直接從4分鐘左右開始看,如要做到影片那樣,Excel必須要安裝下列三個Plugin:. Power Query:用來取得Facebook的資料,像是相簿、貼文及按讚等資料. 160; 這三個Plugin有最低Office版本的限制,如下:. Power Query:Office 2010 Standard Power Query. PowerPivot:Office 2010 Standard PowerPivot. 65292;就可以免費試用60天喔,試試又不用錢,像我就用評估的啊. 訂閱: 文章 (Atom).
adalf的小技巧: 五月 2015
http://adalf0722.blogspot.com/2015_05_01_archive.html
SSMS][SSIS]Connecting to the Integration Services service on the computer "localhost" failed with the following error: "Access is denied.". 環境是Win 2012 R2與SQL 2014,以管理者身分登入Local端後,用SSMS連SSIS時發生如下錯誤. Grant Permissions to Integration Services Servic. 結果又是用右鍵Run as administrator執行SSMS就可以解了,UAC好麻煩. 標籤: SQL Server 2014. 160; Open Source的,有商用版本,測試的用開源的就夠了,載點在 MDX Parser,Builder,DOM and OLAP visual controls with Writeback for Silverlight. 65292;下載Ranet.UILibrary.Olap-3.5.927.0.msi喔. Set Serveroutput On;.
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SQL Server Health & History (SQLH2) - Home
Project Hosting for Open Source Software. SQL Server Health & History (SQLH2). By clicking Delete, all history, comments and attachments for this page will be deleted and cannot be restored. Change History (all pages). This is SQLH2 project which was originally published on Microsoft.com in 2004. The code published here was slightly modified from the latest version available for download at Microsoft.com. Http:/ www.microsoft.com/downloads/details.aspx? Here is a short list of changes:. The project is op...
SQL Server Consulting & Training - SQLHA
When you need to get. Somewhere, the route matters. Design, deploy, and. From the experts at. Keep up with what's going. On with all things SQL. Server, Windows, and. Mission critical - along with some exclusive surprises. Always On Availability Groups with No Underlying Cluster in SQL Server v.Next. AGs with no WSFC or Pacemaker! Announcing Two New Courses and the 2017 SQLHAU Schedule. SQLHAU has two new classes and our 2017 schedule. Outages In An Increasingly Connected World. SQLBits 16 Training Day.
Mission Critical SQL Server - Shop
Back To Main Site. Mission Critical SQL Server - First Edition (eBook only). SQL Server deployments need to be architected for both availability and performance; that is the essence of mission critical. While mission critical is not impossible to achieve, there is no quick formula or Wizard to get there. You must do the proper planning and due diligence to achieve an end result that not only provides the uptime and speed you need, but is also easy to maintain once it is in production. To see the FAQ for ...
sqlhack.com - This domain may be for sale!
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HackingZone | Here have space for all hackers.
Here have space for all hackers. Thanks for dropping by HackingZone! Take a look around and grab the RSS feed. To stay updated. See you around! Latest Entries ». Filed under: Facebook Hack. Mdash; Lini një koment. Korrik 29, 2010. FaceBook’s servers was hacked by Inj3ct0r team. Hack of the year! Original: http:/ inj3ct0r.com/exploits/11638. Inj3ct0r official website = Inj3ct0r.com. 0x02] [Search for bugs]. 0x03] [Inj3ct0r Crash Exploit]. We have demonstrated the flaw in the system. Start =] . Completed S...
sqlhacks.com - This domain may be for sale!
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SQL Hammer - | SQL Hammer
My Epic Life Quest. Adding Your Entire Enterprise into Red-Gate SQL Multi Script Distribution List. RedGate sells a product call SQL Multi Script. The product allows you to asynchronously execute T-SQL scripts to large quantities of servers. There are a number of useful administrative tasks which can be made easier with this product. One task,…. Implicit Conversion Mine Field: Blowing SARGability away! Implicit conversions are convenient. Implicit conversions are EVIL! Even in IT shops where you diligent...
SQL Server World | A closer look at everything related to SQL Server
A closer look at everything related to SQL Server. Studying Statistics with R – 2. July 30, 2015. In my second post regarding R and statistics, I am going to describe my registering for online classes. See here for Part 1. First, I registered on Coursera.org. For a class named R Programming . This is a part of a Data Science Specialization and is offered by JHU. This will begin on August 3rd. The other online course is from EdX.org. But I just joined it today. It will end on August 31. What is my goal?
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SQLHangouts | Video Chats with Microsoft Data Platform and SQL Server experts from all around the world!
Video Chats with Microsoft Data Platform and SQL Server experts from all around the world! Want to do a SQLHangout? Have an idea for a SQLHangout? SQLHangouts are short 30-minute video chats with Microsoft Data Platform and SQL Server experts from all around the world. You can find all videos on the SQLHangouts Facebook page. Or in the YouTube playlist. Started SQLHangouts in 2013 and handed it over to Cathrine Wilhelmsen. You can find SQLHangouts #1 – #35 in Boris Hristov’s YouTube playlist.
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