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Great article. Matt ï¿½ yeah, generally I prefer virtualization for that scenario. So much easier to patch guests. Thank you for the information! This is a great way for me to teach the business on why to upgrade; also it provides me with details on which version to upgrade to and why. If I need to, I figure I can use the compatibility level feature. We still have a lot of R2. I imagine a lot of people do. Ever just give up and root for a server failure? Great article as always. It misses HDFS partition mapping, ability to handle different structured lines, and a decent row size.
Currently CU8 an hoping to upgrade today to CU I came were while looking for SSRV roadmap. I suppose it is too much to ask that it smells like bacon. The biggest feature that I absolutely hate, especially for the migration from 2k12 to 2K16 was the incredible negative impact that the new Cardinality Estimator had on our systems.
In fact, that seems to be a problem with all versions of SQL Server. PowerPivot for Excel has been replaced? Could you please explain that a little bit more? In terms of functionality and new features though, Power BI Desktop is lightyears ahead. We dont use the new data science technologies or anything fancy just standard features.
Plus we run everything on windows so linux isnt an option right now maybe in the future. So do i push for or keep ? Yeah I read your post. Let me ask another question. For setting up a BI solution using power BI. Which version will benefit more? Any comments? How are you going to use Power BI? With the service? I was wondering, the article mentions performance improvements for columnstore indexes in SQL Server What is the tradeoff? The suspense is killing me! What will be the impact for us.
I just came across this as I am investigating the upgrading of a couple of boxes. Thank you for your thoughtful and informative post. My question is do you have the same opinion now that it is almost a year later than when you wrote this. Clay ï¿½ have any versions of SQL Server been released since the post was written? If not, why would my opinion change? Actually I would prefer because that would make my versions consistent across multiple servers.
I was able to configure and test almost without issues the windows Cluster, Quorum for it, AG, including failing over from Primary to secondary. Also created Listener and tested it. Can anybody confirm or tell me where to look? Thank you. Good Post, But my opinion is please be using SQL server and it is consider as most stable database engine. All of their latest versions are just a fancy wordings. But none of them are working as per the expectations. We recently faced a count query issue on our largest table after creating non clustered column store index.
The table actual row count was 1 billion but after index creation it returned with 40 billion as a count. We will not accept mistakes in basic things like select count with incorrect results, this will impact the business. Still SQL server have no improvement in table partitioning, still always on supports with full recovery model, enabling legacy estimator in database scoped configuration for queries running well in older database version.
Running durable memory optimized count query result duration is similar to normal table count duration. When comes to large volume those fancy will not work as per the expectations. We are using SQL server sp1 enterprise edition. The problems we are facing are our realtime issues, those are not received by surfing any websites.
When come to performance majority of the stored procedures are running behind and in Thanks for agreeing. When we are planning to go with latest version the features projected by product vendors will not produce incorrect results. Cardinality estimation is one of the major problem.
We have objects works well up to after execution durations increased and tempdb and db logs are running out of storage, enabling legacy estimation on or change db compatibility level to resolving our problem. Now SQL server released and also preparing for In that case we all prefer to go with , think about companies migrated to will pay additional cost for Microsoft should consider their customers when releasing latest versions.
Releasing cu is different than version release. If possible kindly refer niko post and search my name I was describing my problem and niko also agreed.. So ï¿½ I made that happen. You can click Consulting at the top of this page for that kind of help.
Hi Timothy King, No need to fear about end of support. As a Microsoft SQL Server DBA , we raised a support ticket to Microsoft support team for a major bug in non clustered column store index in version SP2 due to our internal security policies restrictions we are unable to bring the support team to diagnose our server. Because the team will install some diagnostic software and collect logs from our server, as per the policy we have so many restrictions and unable to proceed further, in that case we are unable to utilize the support.
Better to use a stable version of SQL server, I believe or consider as a stable versions, to my experience new versions of SQL server are concentrated in cross platform technologies for analytics workload, most of the existing queries running well in are running with degraded performance due to the latest cardinality estimation and optimizer enhancements, Even Microsoft accepted this as a bug and provide workaround like this, enable legacy cardinality estimation on, use query hint for the specific query blocks, change sql server compatibility to something like this.
But one thing we need to consider in future if there is very limited scope to bring other data source data for processing in your environment means we can run with older version of SQL server. Existing features requires lot of improvements but Microsoft is not looking such things and releasing versions like a movie. If i am explains multiple items then people may thing i am surfing from internet and write those but not like that these are all our real time issues we faced.
Please stick with your stable SQL server version for your continuous application support without any escalations. A year later, is the your advise still to stay with SQL? For example, how many people actually know what the permanent changes to TempDB in the form of making TF functionality no longer optional for TempDB are? All 8 files automatically tried to grow to 25GB. The only way to recover that space is to rebuild the related heap or index. The only way to overcome the problem without changing code is to use TF We have SSRS reports too.
Also, do you recommend using compatibility mode? No much to gain but can upgrade by changing the compat mode. Love to hear your opinion on this. There are no new features we wish to take advantage of at this time , just want to push out the time to the next upgrade , hot diggity!
I am the DBA so would like to go , but dev feels we should go to It reminds me of the RTM for , which was just awful. Thanks for your post, Brent. How about upgrade to from where you are.
Consider it base camp for the next upgrade. You will be in striking distance of the next upgrade and can hang with for years if you want. Looking for ammunition to push back against management who hears we are running on while the calendar will soon say Typically, change equals risk.
It continues to work, only more efficiently. Normally, the reverse has been true every time a new version comes out. I used to wait for SP1 but , , and now changed all that. If I can afford to do so, I try to quietly lag behind by at lease 1 version. If you remember all the horror in until they finally fixed most of their regression mistakes in SP3, you know why I take such a position.
I had a very good experience with the hole thing, for example, Always-on, for example is great, very powerfull tech, I am also involved in RDBMS radical migration, only a few, from Oracle to Sql-Server, due to Management decisions for lowering license costs and this also were a success.
And if someone is only using Web Edition features, how does that affect your recommendation? A noticeable change between and is the capabilities of graph databases.
You can directed graphs in using edge constraints and it protects against deleting nodes with edges, things not in Great Article! We have some Databases in and , and were in the final phase of testing with SS, and in one particular database we use a lot of UDF and TVF, the performance in these database is in average 1. Already tried every configuration possible in the server, disabling inling in some functions helped, but most of the functions are lot inlineable!
Probably will Go to SS! The way Unicode characters are hashed in sql until SQL Server was not consistent with hash made in Python or other languages. So if you hashed your data vault keys with sql server and you want to integrate that with data stored outside of sql say in a datalake, and your hashing values had Danish letters for instance, then the same key will have two different hash values.
Hello, We have now 11 CUs for and almost 2 years sice its release. What is the big blocker with SQL to go to production? Is there something specific that is dangerous at this moment? Please consider that is almost out of mainstream support and only and will have full support.
Hello, I had the feeling that you do not recommend it at all, but it seems I am not entirely right after I read carefully: In our case we have all the issues that SQL suppose to fix.
Even we are facing last-page contention on some tables. I hope to have more benefits than negatives. We aim to go to Prod Q4 If anyone else does the migration, it would sure be nice if you good folks would reply on this thread with the same vigor and detail to let the rest of us know how things worked out. I do hate supporting multiple SQL Server versions. Its difficult to implement new features, then do a separate cut for older versions. It would be nice if a patch to older versions would allow ignoring syntax specific to new versions when possible.
A patched build would recognize this as a valid syntax, and then ignore it. I still doubt. Cylance especially has been particularly problematic, but have had issues with cisco, defender, mcafee and to a lesser degree fire eye. Exclusions lists that used to work, have needed to be added to, in order stop what appears to be heuristics engines from scanning activities they have seen on a particular server literally hundreds of thousands of times.
Have had something like installing a CU cause a failover cluster or availability group to fall apart, sometimes after OS reboot come back and then not be an issue again, but also sometimes having to uninstall CU, turn off the AV and reinstall CU, to make it work again.
We receive SQL backups from them and restore to a SQL Server in our data center, which would mean we need to upgrade our servers to as well. Generally speaking, do the same concerns with SQL Server exist if you keep databases in a lower compatibility mode say or ?
Mark ï¿½ go through the list of concerns on , and think about which ones happen regardless of compatibility level. According to a Microsoft technical article, this simplifies management and improves performance. Spatial data will be stored in two types. A "Round Earth" data type GEOGRAPHY uses an ellipsoidal model in which the Earth is defined as a single continuous entity which does not suffer from the singularities such as the international dateline, poles, or map projection zone "edges".
SQL Server includes better compression features, which also helps in improving scalability. It also includes Resource Governor that allows reserving resources for certain users or workflows. It also includes capabilities for transparent encryption of data TDE as well as compression of backups.
The final SQL Server service pack SQL Server R2 However, the x64 platform would continue on in force. It was released to manufacturing on March 6, SQL Server 's new features and enhancements include Always On SQL Server Failover Cluster Instances and Availability Groups which provides a set of options to improve database availability,  Contained Databases which simplify the moving of databases between instances, new and modified Dynamic Management Views and Functions,  programmability enhancements including new spatial features,  metadata discovery, sequence objects and the THROW statement,  performance enhancements such as ColumnStore Indexes as well as improvements to OnLine and partition level operations and security enhancements including provisioning during setup, new permissions, improved role management, and default schema assignment for groups.
SQL Server had mainstream support until July 11, , and extended support until July 12, SQL Server was released to manufacturing on March 18, , and released to the general public on April 1, , and the build number was Whilst small tables may be entirely resident in memory in all versions of SQL Server, they also may reside on disk, so work is involved in reserving RAM , writing evicted pages to disk, loading new pages from disk, locking the pages in RAM while they are being operated on, and many other tasks.
By treating a table as guaranteed to be entirely resident in memory much of the 'plumbing' of disk-based databases can be avoided. SQL Server also enhances the Always On HADR solution by increasing the readable secondaries count and sustaining read operations upon secondary-primary disconnections, and it provides new hybrid disaster recovery and backup solutions with Microsoft Azure, enabling customers to use existing skills with the on-premises version of SQL Server to take advantage of Microsoft's global datacenters.
In addition, it takes advantage of new Windows Server and Windows Server R2 capabilities for database application scalability in a physical or virtual environment. The RTM version is Service pack 2 updates the version to Service Pack 1 was released on November 16, , Service Pack 2 was released on April 24, , and Service Pack 3 was released on September 15, SQL Server is supported on x64 processors only.
It is no longer supported on x86 processors. SQL Server Jump to content Navigation. Help Learn to edit Community portal Recent changes Upload file. Download as PDF Printable version. On this Wikipedia the language links are at the top of the page across from the article title. Go to top. Contents move to sidebar hide. Article Talk. Read Edit View history. More Read Edit View history.
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WebJan 13, ï¿½ï¿½ SQL Server (x) builds on previous releases to grow SQL Server as a platform that gives you choices of development languages, data types, on-premises or . WebCTP: Community Technology Preview (beta release): RC: Release Candidate: RTM: Released To Manufacturing; It is the original, released build version of the product, i.e. . Web20 rowsï¿½ï¿½ Sep 28, ï¿½ï¿½ SQL Server Cumulative Update (CU) builds SQL Server GDR builds References Microsoft SQL Server support lifecycle How to .