Pages

Tuesday 23 July 2013

SQL Server : Understanding Differential Change Map (DCM) Page and Differential Backups

In our earlier posts, we have discussed about different types of pages.Data Pages, GAM and SGAM,PFS page and IAM page. In this post, we will try to understand the Differential Change Map (DCM) pages and differential backups.

Differential Change Map(DCM)SQL Server uses Differential Changes Map (DCM) page  to track extent modified after the last full backup operation. DCM page is the 6th page in the data file.DCM page track the extents modified after the full backup.DCM has a bit for every extent it tracks. If the bit is 1, the corresponding extent is modified after the last full backup, if the bit is 0, there is no change in the corresponding extent after the last full backup.A DCM page can hold information of around 64000 extents. Precisely DCM pages repeat after every 511232 pages .One DCM page can track the changes of exactly 63904 extents.The second DCM page will be 511238th page.

Differential backups read the DCM pages to determine which extents have been modified after the last full backup. This greatly reduces the number of pages that a differential backup must scan. The length of time that a differential backup runs is proportional to the number of extents modified since the last full backup and not the overall size of the database.



Let us see an example:


CREATE DATABASE Mydb

GO
BACKUP DATABASE Mydb TO DISK='D:\mydb.bak'
GO
DBCC TRACEON(3604)
DBCC PAGE('MYDB',1,6,3)


FIG 1
From the output it is clear that, four extents which starts from 0th page to 32th page have changed after the last full backup. It is not necessary to have changes in all these 32 pages. But we can clearly say that , there were changes in at least four  pages , one page from each extents.This might happen due to the changes triggered by full backup command in the internal tables

Now let us try to add some data to this database and again see the DCM page

SELECT * INTO mydb..SalesOrderDetail FROM AdventureWorks2008.sales.SalesOrderDetail
DBCC PAGE('MYDB',1,6,3)


FIG 2






















As part of select we have create a table and inserted data into that. It will trigger changes in many of the system tables. As a result we can see many extents are marked as modified after the last full backup.Till the page number 1:176 , the changes are due to the internal objects modification. Pages from 1:176 to 1:1671 are got modified due to data inserted into the SalesOrderDetail table.When we take differential backup, SQL server just read the DCM pages and include the pages marked as changed in the differential backup. For example as we mentioned earlier,there might be only changes to four pages in the first entry (1:0 - 1:24) but differential backup include all 32 pages in the backup. Let us take a differential backup.

BACKUP DATABASE Mydb TO DISK='D:\Mydbdifferential.bak' WITH DIFFERENTIAL

DBCC PAGE('MYDB',1,6,3)

FIG 3

















After the differential backup , there is no change in the DCM pages except two more extents are marked as changed.Before the differential backups, the extents 72-80 and 136-144 were marked as not changed. After the differential backup, these two extents are marked as changed. Refer Fig 2 and Fig 3.This is happened due the changes triggered by differential backup in the internal tables.From this it is clear that, differential backup will not clear the DCM page. In Short differential backup always include all the changes happened from the last full backup. Not the changes from the last differential backup.There is a misconception that, the differential backup contain the changes happened from the last differential backup which is completely wrong.  

If we look into the FIG 3, we can see that the size of the differential backup file is 13452 KB.Let us try ti calculate it using the DCM page information.From the Fig 3 , we can see that DCM page has marked 1616 pages as changed. The calculation is given below

(32-0)+(64-48)+(88-72)+(168-112)+(1672-176)=1616

The size of the page is 8 KB. So the 1616 page account to 12928 KB (1616X8). Which is very close to the size of the differential backup file. The difference is overhead of the file header etc.

Now Let us take a full backup and see what will happen.

BACKUP DATABASE Mydb TO DISK='D:\MydbFull.bak' 

DBCC PAGE('MYDB',1,6,3)

FIG 4








Now SQL server cleared DCM page.Everything is marked as Not Changed except the four extents 1:0 -1:32. No this backup will work as base for all subsequent differential backups.There is an option to take full backup with out disturbing the existing backup chain. 


BACKUP DATABASE Mydb TO DISK='D:\MydbFull_Copy.bak' WITH COPY_ONLY

In this scenario SQL server will not reset the DCM pages. Still MydbFull.bak will be the base full backup for subsequent differential backups. This will be helpful in some scenario where you need to take full backup but do not want disturb the backup chain.


To summaries, SQL server tracks the changes to the extents through the differential change map(DCM) page.While taking differential backup, SQL server just backup the extents marked as changed in the DCM pages. It helps SQL server to speed up the differential backup process with out scanning through all pages to check it is modified or not after the last full backup.Differential backup will not clear the DCM page and differential backup contain all the changes happened from the last full backup. While taking full backup, SQL server reset the bits in DCM page to mark it is not changed.

If you liked this post, do like my page on FaceBook

229 comments:

  1. Good read, thanks for sharing
    Dave
    http://eMarkethosting.com

    ReplyDelete
  2. All are saying the same thing repeatedly, but in your blog I had a chance to get some useful and unique information, I love your writing style very much, I would like to suggest your blog in my dude circle, so keep on updates…
    Regards
    Aamala
    SEO Training in Chennai

    ReplyDelete
  3. Thank you for having taken your time to provide us with your valuable information relating to your stay with us.we are sincerely concerned. Keep it up. And provide us more blog
    SAP ABAP Training in Chennai

    ReplyDelete
  4. This blog having the details of Processes running. The way of runing is explained clearly. The content quality is really great. The full document is entirely amazing.
    Thank you very much for this blog.
    Android Training in Chennai

    ReplyDelete
  5. I really enjoyed reading your blog, you have lots of great conten.
    Packers And Movers Gurgaon

    ReplyDelete
  6. First is to thank you for all this informative posts you give us for free; i bet all of us are happy.
    Such a great idea of yours! You have been a big help for me. Thanks a lot. more post for interesting topic. Great!

    SAP training in Chennai

    ReplyDelete
  7. This article creates a new hope and inspiration with in me. Thanks for sharing article like this. The way you have stated everything above is quite awesome. Keep blogging like this. Thanks.

    SAP training in Chennai

    ReplyDelete




  8. I loved the way you discuss the topic great work thanks for the share, Let me share this, vmware training in pune

    ReplyDelete
  9. It is really very excellent blog; I find all of your blogs were amazing and awesome. The way to get expert tips from everyone, not only I like that posts all peoples like that post. Because of all given info was wonderful and it's very helpful for everyone.
    Oracle Fusion HCM Technical Training

    ReplyDelete

  10. Learning new technolgy would help oneself at hard part of their career. And staying updated is the only way to survive in current position. Your content tells the same. Thanks for sharing this information in here. Keep blogging like this.

    iOS App Development Company

    ReplyDelete
  11. مؤسسة ركن كلين 0551425199 كــ ارخص شركة تنظيف منازل ,فلل ,شقق,بيوت,موكيت,سجاد بالرياض تقدم
    تنظيف الموكيت بالرياض
    Carpet cleaning is one of the inevitable things that must be done regularly to keep your home look and look beautiful and elegant. Most of the time our company Cleaning Company Mukait Riyadh is keen to invest excellent tools in getting the best results in addition to the equipment for cleaning and drying which makes the furniture clean in a very short time.



    ReplyDelete
  12. Carpet cleaning is one of the inevitable things that must be done regularly to keep your home look and look beautiful and elegant. Most of the time our company Cleaning Company Mukait Riyadh is keen to invest excellent tools in getting the best results in addition to the equipment for cleaning and drying which makes the furniture clean in a very short time.
    تنظيف موكيت شمال الرياض
    تنظيف موكيت شرق الرياض
    تنظيف موكيت غرب الرياض
    تنظيف موكيت جنوب الرياض
    تنظيف بيوت شعر بالرياض


    ReplyDelete
  13. This is very good blog for learners, Thanks for sharing valuable content on MSBI Online Training


    ReplyDelete
  14. Hi,
    THANKS SO MUCH for sharing this! I would love to buy you a coffee since I now won’t be up all night that has been driving me crazy (until now!!). I just wish I knew what was going wrong but so glad it’s in the right place now! Thanks again:)
    Using excel connector can we format particular column as numeric? I have a data table which I get imported from my c# code to excel connector and its working fine. but in C# code also I am not able to format this particular column to numeric. Kindly assist.

    By the way do you have any YouTube videos, would love to watch it. I would like to connect you on LinkedIn, great to have experts like you in my connection (In case, if you don’t have any issues).
    Please keep providing such valuable information.
    Thank you,
    Kevin Martin

    ReplyDelete
  15. Shorouk Shorouk for all household services from Cleaning of apartments, cleaning apartments, insect control and sewerage, offering you all the domestic services at the cheapest prices. Contact us to request the service you want Dear customer
    شركة تنظيف بخميس مشيط

    شركة تنظيف خزانات بالاحساء
    شركة تنظيف خزانات بابها
    شركة تنظيف خزانات بالاحساء



    ReplyDelete
  16. This comment has been removed by the author.

    ReplyDelete
  17. This is a much needed information thank you for sharing and it's very helpful to know about this information. Thanks for sharing it MSBI Online Training

    ReplyDelete
  18. I strongly believe that there will be great opportunities for those who looked into this area, I would like to read this blog regularly to get more important stuff...
    Best Online Software Training Institute | SQL Server Training

    ReplyDelete
  19. quite informative, thanks for sharing with us

    if you are interested in reading my blogs
    - http://www.learndigital.co

    ReplyDelete
  20. Thanks for sharing the information, Salesforce experts a lot of openings in multi-level companies, for more information n
    Salesforce Training
    Professional Salesforce CRM Training
    Salesforce Training online in India

    ReplyDelete
  21. Amazing Blog,Thanks for sharing the valuable post,you have put good efforts.keep on sharing the latest updates. Best software Training institute in Bangalore

    ReplyDelete
  22. Thanks for one marvelous posting! I enjoyed reading it; you are a great author. I will make sure to bookmark your blog and may come back someday. I want to encourage that you continue your great posts.
    Devops training in Chennai

    Devops training in Bangalore

    Devops training in Pune

    Devops training in Online

    Devops training in Pune

    Devops training in Bangalore"

    Devops training in tambaram"

    Devops training in Sollonganallur"

    ReplyDelete
  23. A very nice guide. I will definitely follow these tips. Thank you for sharing such detailed article. I am learning a lot from you.

    java training in chennai | java training in bangalore

    java online training | java training in pune

    selenium training in chennai

    selenium training in bangalore

    ReplyDelete
  24. hi very good article
    thanks for sharing keep up the good work

    ReplyDelete
  25. Thank you again for a wonderfully informative item. So much to do…..

    ac servcie ambattur

    ReplyDelete
  26. A good blog always comes-up with new and exciting information and while reading I have feel that this blog is really have all those quality that qualify a blog to be a one.I wanted to leave a little comment to support you and wish you a good continuation. Wishing you the best of luck for all your blogging efforts read this.
    python training in velachery
    python training institute in chennai

    ReplyDelete
  27. I would like to say thank you for the amazing details and concepts you are sharing in this.

    Mobile Apps Training
    Mobile Apps Training in Chennai

    ReplyDelete
  28. This comment has been removed by the author.

    ReplyDelete
  29. Great reviews on this article.Once again thanks for your great share.
    web design company in chennai
    web development company in chennai

    ReplyDelete
  30. Excellent blog, good to see someone is posting quality information.
    DevOps Online Training

    ReplyDelete
  31. Great post! I am actually getting ready to across this information, It’s very helpful for this blog.Also great with all of the valuable information you have Keep up the good work you are doing well.
    angularjs online Training

    angularjs Training in marathahalli

    angularjs interview questions and answers

    angularjs Training in bangalore

    angularjs Training in bangalore

    angularjs Training in chennai

    ReplyDelete
  32. Your blog was really amazing and informative. Thanks for sharing with us. Visit for
    Web Designing Company in Delhi
    SEO Service in Delhi

    ReplyDelete
  33. Interesting article..... Thanks for sharing this article.....
    DevOps Online Training

    ReplyDelete
  34. Really a great post. Appreciate the effort in educating us.
    DevOps Online Training

    ReplyDelete
  35. Thanks for given such informative and valuable blog. Visit for
    SEO Service in Delhi

    ReplyDelete
  36. I really like the dear information you offer in your articles. I’m able to bookmark your site and show the kids check out up here generally. Im fairly positive theyre likely to be informed a great deal of new stuff here than anyone
    python training in chennai
    python course in chennai
    python training in bangalore

    ReplyDelete
  37. Thanks for your informative article, Your post helped me to understand the future and career prospects & Keep on updating your blog with such awesome article.

    Data Science course in Chennai
    Data science course in bangalore
    Data science course in pune
    Data science online course
    Data Science Interview questions and answers
    Data Science Tutorial

    ReplyDelete
  38. Whoa! I’m enjoying the template/theme of this website. It’s simple, yet effective. A lot of times it’s very hard to get that “perfect balance” between superb usability and visual appeal. I must say you’ve done a very good job with this.
    aws training in bangalore
    RPA Training in bangalore
    Python Training in bangalore
    Selenium Training in bangalore
    Hadoop Training in bangalore

    ReplyDelete
  39. Thanks for sharing this blog, this blog is very helpful information for every one.

    ReplyDelete
  40. Thanks for sharing this blog, this blog is very helpful information for every one.

    ReplyDelete
  41. Thanks for sharing this blog, this blog is very helpful information for every one.

    ReplyDelete
  42. The points you have mentioned in this article information are helpful for me, Thank you for share this awesome blog with us.
    Jeans Supplier in Delhi

    ReplyDelete
  43. Thank you for share this information, I like to read your Points you have mentioned in this article are helpful for me,
    web development company in delhi

    ReplyDelete
  44. Thank you so much for share this idea, I like to read your information you have mentioned in this article are helpful for me,
    Motorcycle Tour in Goa

    ReplyDelete
  45. Thank you so much for share this great idea, I like to read your information you have mentioned in this article are helpful for me,
    Lifestyle Magazine

    ReplyDelete
  46. Thank you for share this awesome idea, I like to read your information you have mentioned in this article are really useful for me,
    Shipping Company in India

    ReplyDelete
  47. Thank You! For sharing such a great article, It’s been a amazing article.
    It’s provide lot’s of information, I really enjoyed to read this.

    ReplyDelete
  48. Thanks for sharing the good information and post more information. Talent flames company is one of the best training and placement companies in Hyderabad. Providing training on Technologies like Java,Sql,Oracle,..,etc with 100% Placement Assistance. Now Interviews going on if you want to attend just visit our website and drop your resume. for more information visit us http://talentflames.com/
    training and placement companies in Hyderabad

    ReplyDelete
  49. Packers and Movers in Delhi - We Have a core expertise of twenty years during this field we have a tendency to worth your merchandise in Transfering your merchandise from one location to a different.

    ReplyDelete
  50. I want to say that this post is awesome, nice written.

    ReplyDelete
  51. Very nice post here thanks for it .I always like and such a super contents of these post.Excellent and very cool idea and great content of different kinds of the valuable information's.

    Check out : machine learning training in chennai
    artificial intelligence and machine learning course in chennai
    machine learning with python course in chennai
    best machine learning institutes in chennai

    ReplyDelete
  52. The blog was absolutely fantastic! Lot of information is helpful in some or the other way. Keep updating the blog, looking forward for more content...Great job, keep it up
    Workday HCM Online Training
    Oracle Fusion Financials Online Training
    Oracle Fusion HCM Online Training
    Oracle Fusion SCM Online Training

    ReplyDelete
  53. I wish to say that this post is amazing, nice written and include approximately all important infos. I would like to see more posts like this
    Regards,
    Python Training in Chennai | Python Programming Classes | Python Classes in Chennai

    ReplyDelete
  54. I am really happy to say this I am deeply read your article, I am searching like this type valuable information, it’s really helpful for me, I am happy to found it, thank you so much for share this blog, great work, keep sharing like this type of article, thank you so much for read my comment, if any one searching website designing company in India please visit my website
    Web Designing company

    ReplyDelete
  55. Thanks for sharing your informative post on development.Your work is very good and I appreciate you and hoping for some more informative posts.keep writing
    and sharing.
    Thanks for sharing your informative post on development.Your work is very good and I appreciate you and hoping for some more informative posts.keep writing
    and sharing.

    ReplyDelete
  56. cerisea medica
    weight-loss. These increased activity stages can and should be continued eventually, but be sure to choose those that you enjoy and that will not result in too much muscle pain. Gradually increasing your
    https://newsletterforhealth.com/cerisea-medica/

    ReplyDelete
  57. Keto fast
    ) aid the ‘stimulating’ effect of the plant.Another very essential ingredient, which is derived from the complement B complex and is a highly effective vasodilator, that is to say, it draws the blood vessels to the skin in the position to which it is applied. The effect of this on the top is, firstly, to ‘shock’ any hormone or androgenic hormone or testosterone to di-hydrotestosterone and so there follows a positive response. Biostim is also a good organic source of oestrogen, this may also
    https://newsletterforhealth/keto-fast/

    ReplyDelete
  58. I found this blog is very helpful, great information Thanks.
    Learn Digital Academy offers, Courses in Digital Marketing in Bangalore. comprehensive placement assistance to students through live practical training, Assignments, and Internships.

    ReplyDelete
  59. keto blast
    .phytonutrients for a appropriate personal whole body. There are other meals that have a high-content of frequent normal water and most may basically be recognized like some clean vegetables and fruits and clean vegetables but certain weight loss programs may limit meals with high-water content. In this
    https://topwellnessblog.com/keto-blast/

    ReplyDelete
  60. this is too good. We routinely deal with SQL database for our .net development projects as premier hire dot net development company for Dallas

    ReplyDelete
  61. provexum sexually. VigRX Plus program contains all-natural natural component such as impressive libido enhancers that are completely safe and effective. • And it's really true, VigRX Plus was one of the safest, most reliable natural pills to increase hardons in you need to. And this has been proven by numerous
    https://newsletterforhealth.com/provexum/

    ReplyDelete
  62. Learn Digital Academy Offers, Digital Marketing course in Bangalore.
    Get-in depth knowledge.
    Learning experience involves Training, Certification, internships, and Placement.
    Strategies into practice.

    https://www.learndigital.co/

    ReplyDelete
  63. Wonderful post. Keep sharing. Call HP printer tech support phone number for help to resolve issues of printers. Glitches faced on printers - paper load & jams, driver, install, won’t print.

    ReplyDelete
  64. Hi, it is very helpful post. Sage is the third largest company which provides ERP software and also it is known for giving Accounting programming, finance and numerous different things. If you face any issue in Sage you can contact our technical expert for Sage Customer Support USA.

    ReplyDelete
  65. Hi, it is really good. Resolve the issues such as installation, activation etc. which you face in Eset Nod32 antivirus by calling on Eset Nod32 Antivirus Customer Service Phone Number toll-free.

    ReplyDelete
  66. Its never been easy to find Sarkari Naukri in India. So must check our website Sarkarinaukripost.com

    ReplyDelete
  67. It’s nice and valuable information, really appreciate for the nice blog...!!

    Hi guyz click here Best Pega Training in Bangalore to get the best knowledge and details and also 100% job assistance hurry up...!!

    DO NOT MISS THE CHANCE...

    ReplyDelete
  68. Thank you for sharing this information.
    Check out the best entertainment unit

    ReplyDelete
  69. India’s most personalized and prompt in communication, inbound tour operator, Surya Tours & Travels was established with the motive of handling tourists from all over the South india. We are a Govt of india recognized tour operators. We take liability only for emails and phone calls from the above Mail-id and phone Numbers. We are not responsible for any unauthorised mail usage and phone calls.
    best tours agents in madurai
    chennai tours and travels
    chennai travels and tours

    ReplyDelete
  70. أهم شركات مكافحة الحشرات المتخصصة وما يتم القيام به لخروج الخدمة بصورة مشرفة أمام العملاء ولدينا ايضا شركات نقل العفش مع الفك والتركيب بجدة ومكة والطائف

    ReplyDelete

  71. افضل شركة تنظيف بمكة المكرمهتلك التي تستخدم مواد تنظيف عالية الجودة وتعتمد على فريق عمل مدرب ومحترف

    ReplyDelete


  72. This is very annoying when you have canon printer and you dont know how to setup and install it.
    just read for
    Install Canon Printer

    ReplyDelete
  73. Amazing article. Your blog helped me to improve myself in many ways thanks for sharing this kind of wonderful informative blogs in live.
    IT Institute in KK nagar | digital marketing course in chennai | digital marketing training in chennai | social media marketing chennai

    ReplyDelete
  74. Really nice post. Provided a helpful information.I hope that you will post more updates like this

    AWS Online Training

    ReplyDelete
  75. I am impressed by the information
    aws course in Bangalore that you have on this blog. It shows how well you understand this subject.

    ReplyDelete

  76. Why is the Internet continuously connecting and disconnecting.To fix this visit
    wifi keeps disconnecting and reconnecting

    ReplyDelete

  77. Why is the Internet continuously connecting and disconnecting.To fix this visit
    wifi keeps disconnecting and reconnecting

    ReplyDelete
  78. دهان بالدمام
    دهان بالدمام
    يعتبر معلم دهان بالدمام من أهم الكوادر التي تعمل في صرحنا الكبير حيث أن الشركة تعتمد عليه في تشطيبات المنازل والفلل والقصور، بجانب أنه يقو بأفضل أعمال الدهان والديكور على حسب اختيار وأذواق العملاء، كما أنه محترف للغاية ويهتم جداً بأن يقوم باستعمال أجود الدهانات العالمية والتي لا تتعرض مع مرور الزمن للتللف أو للتغيير.

    ReplyDelete
  79. Get in depth knowledge on cyber security through cyber security training

    ReplyDelete
  80. You have a real ability for writing unique content. I like how you think and the way you represent your views in this article.

    ReplyDelete
  81. This comment has been removed by the author.

    ReplyDelete
  82. Spider Goa is the best escort provider of Goa. We provide Model Escorts, Independent Female Escorts, Russian Escorts and Goa College Girls for your sexual pleasure and mood. We believe in providing the best of Escort Service in Goa to make sure your experience becomes an unforgettable one.
    Independent Model Escorts
    Goa Female Escorts
    Call girl goa
    Call girl in Goa
    Sweety Goa
    Ashvem Escorts number
    Ashvem Beach Escorts Number
    Baga escorts number
    Baga beach escorts number
    Anjuna Escorts number
    Anjuna Beach Escorts Number

    ReplyDelete
  83. Get more traffic for your website and Blog through the best Backlinks’ Database which offers by Being4u the Tech Rider. Checkout the website below.

    Free Directory
    What is SEO

    ReplyDelete
  84. You have a real ability for writing unique content. I like how you think and the way you represent your views in this article.

    ReplyDelete
  85. Great post!I am actually getting ready to across this information,i am very happy to this commands.Also great blog here with all of the valuable information you have.Well done,its a great knowledge. digital marketing training in bangalore

    ReplyDelete
  86. Learned a lot of new things from your post! Good creation and HATS OFF to the creativity of your mind.HADOOP BIGDATA training in bangalore

    ReplyDelete
  87. I am happy for sharing on this blog its awesome blog I really impressed. thanks for sharing. Great efforts.

    Upgrade your career Learn Oracle Training from industry experts gets complete hands on Training, Interview preparation, and Job Assistance at My Training Bangalore.

    ReplyDelete
  88. I am happy for sharing on this blog its awesome blog I really impressed. thanks for sharing. Great efforts.

    Become an Expert In Python Training in Bangalore ! The most trusted and trending Programming Language. Learn from experienced Trainers and get the knowledge to crack a coding interview, @Softgen Infotech Located in BTM Layout.

    ReplyDelete
  89. Hello Admin,Keep sharing this because Wonderful post.

    ReplyDelete
  90. Hello Admin, thank for the sheering for this bolgs.

    ReplyDelete
  91. Attend The Course in Data Analytics From ExcelR. Practical Course in Data Analytics Sessions With Assured Placement Support From Experienced Faculty. ExcelR Offers The Course in Data Analytics.
    ExcelR Course in Data Analytics
    Data Science Interview Questions

    ReplyDelete
  92. Excellent blog really helpful and informative.

    ReplyDelete
  93. A good blog always comes-up with new and exciting information and while reading I have feel that this blog is really have all those quality that qualify a blog to be a one.

    machine learning course

    artificial intelligence course in mumbai

    ReplyDelete
  94. very nice blogs!!! i have to learning for lot of information for this sites...Sharing for wonderful information. Thanks for sharing this valuable information to our vision. You have posted a trust worthy blog keep sharing

    Digital Marketing In Telugu
    Digital Marketing In Hyderabad
    internet marketing
    Digital marketing

    ReplyDelete
  95. Effective blog with a lot of information. I just Shared you the link below for Courses .They really provide good level of training and Placement,I just Had SQL Server DBA Classes in this institute,Just Check This Link You can get it more information about the SQL Server DBA course.


    Java training in chennai | Java training in annanagar | Java training in omr | Java training in porur | Java training in tambaram | Java training in velachery

    ReplyDelete
  96. Effective blog with a lot of information. I just Shared you the link below for Courses .They really provide good level of training and Placement,I just Had SQL Server DBA Classes in this institute,Just Check This Link You can get it more information about the SQL Server DBA course.


    Java training in chennai | Java training in annanagar | Java training in omr | Java training in porur | Java training in tambaram | Java training in velachery

    ReplyDelete
  97. Sara movers and packers abu dhabi have become the one-stop solution for any kind of packing and moving needs in Abu Dhabi, Dubai at a low-end price charges, be it house-hold relocation, office relocation, corporate moving, vehicle transportation, or industrial relocation. We have developed smooth & reliable shifting processes and provide you with safety as well as quality services without paying high prices, especially for in Abu Dhabi.

    ReplyDelete
  98. Amazon Web Services (AWS) is the most popular and most widely used Infrastructure as a Service (IaaS) cloud in the world. AWS has four core feature buckets—Compute, Storage & Content Delivery, Databases, and Networking.
    AWS training in chennai | AWS training in annanagar | AWS training in omr | AWS training in porur | AWS training in tambaram | AWS training in velachery

    ReplyDelete
  99. Get 30% discount on best email server hosting, only on, https://besttwebhosting.in/basic/cheap-email-server-hosting/

    ReplyDelete
  100. http://images.google.com.qa/url?q=http://nerverenewreviews.com/
    http://images.google.mn/url?q=http://nerverenewreviews.com/%3Cbr%20/%3E
    http://maps.google.iq/url?q=http://nerverenewreviews.com/%3Cbr%20/%3E
    http://images.google.az/url?q=http://nerverenewreviews.com/%3Cbr%20/%3E
    http://images.google.com.af/url?q=http://nerverenewreviews.com/%3Cbr%20/%3E

    ReplyDelete
  101. I will be interested in more similar topics. i see you got really very useful topics , i will be always checking your blog thanks.
    New Arrival

    ReplyDelete
  102. Such a very useful article. Very interesting to read this article.I would like to thank you for the efforts you had made for writing this awesome article.

    Data Science Online Training

    Data Science Classes Online

    Data Science Training Online

    Online Data Science Course

    Data Science Course Online

    ReplyDelete
  103. Thanks for one marvelous posting! I enjoyed reading it; you are a great author. I will make sure to bookmark your blog and may come back someday. I want to encourage that you continue your great posts.
    java training in chennai

    java training in omr

    aws training in chennai

    aws training in omr

    python training in chennai

    python training in omr

    selenium training in chennai

    selenium training in omr

    ReplyDelete
  104. Hi it's really informative blog and great job,
    Thanks to share with us and keep more updates,

    https://www.porurtraining.in/sap-training-course-in-chennai
    https://www.porurtraining.in/microsoft-azure-training-in-porur-chennai
    https://www.porurtraining.in/cyber-security-training-in-porur-chennai
    https://www.porurtraining.in/ethical-hacking-training-in-porur-chennai

    ReplyDelete
  105. Really nice, I would like to say that this write-up very compelled me to take a look at and do so! Your writing style has been amazed me. Thank you so much for sharing this. Visit Ogen Infosystem for professional web designing and SEO services in Delhi, India.
    SEO Service in Delhi

    ReplyDelete
  106. We help students achieve their goals to Study Abroad, Score high in Foreign Entrance Exams, or learning a new language.
    Spoken English Classes in Chennai
    ielts Coaching in Chennai

    ReplyDelete
  107. Good day! I just want to give you a big thumbs up for the great information you have got right here on this post. Thanks for sharing your knowledge.



    Web Designing Course in Hyderabad

    ReplyDelete
  108. Hi, it is very helpful post. Sage is the third largest company which provides ERP software and also it is known for giving Accounting programming, finance and numerous different things.DevOps Training in Bangalore

    DevOps Training

    DevOps Online Training


    DevOps Training in Hyderabad

    DevOps Online Training in Chennai

    DevOps Training in Coimbatore

    ReplyDelete
  109. Thank you for taking the time to provide us with your valuable information. We strive to provide our candidates with excellent care and we take your comments to heart.As always, we appreciate your confidence and trust in us
    hadoop training in bangalore

    oracle training in bangalore

    hadoop training in acte.in/oracle-certification-training">oracle training

    oracle online training

    oracle training in hyderabad

    hadoop training in chennai

    ReplyDelete
  110. This blog is really helpful to deliver updated educational affairs over internet which is really appraisable. I found one successful example of this truth through this blog. I am going to use such information now

    Data Science Training in Chennai

    Data Science Training in Velachery

    Data Science Training in Tambaram

    Data Science Training in Porur

    Data Science Training in Omr
    Data Science Training in Annanagar

    ReplyDelete
  111. We are well established IT and outsourcing firm working in the market since 2013. We are providing training to the people ,
    like- Web Design , Graphics Design , SEO, CPA Marketing & YouTube Marketing.Call us Now whatsapp: +(88) 01537587949
    : Digital Marketing Training
    Free bangla sex video:careful
    good post outsourcing institute in bangladesh

    ReplyDelete
  112. Thanks for one marvelous posting! I enjoyed reading it; you are a great author. I will make sure to bookmark your blog and may come back someday. I want to encourage that you continue your great posts.
    DevOps Training in Chennai

    DevOps Course in Chennai

    ReplyDelete
  113. Awesome Blog with informative concept. Really I feel happy to see this useful blog, Thanks for sharing such a nice blog...
    Best Digital Marketing Course in Bangalore

    ReplyDelete
  114. Interesting post! This is really helpful for me. I like it! Thanks for sharing!
    Web Development Company in Haldwani

    ReplyDelete