Комментарии:
Selent!!!!!!
ОтветитьI don't like SQL Server for example, I need to get a select result and generate script to insert based in values for the query to put in other table or database its impossible without payable tools. In MySQL its easier.
Ответитьset speed to 1.5x⭐or you will sleep, although very profoundly and well
ОтветитьAs someone that has been writing code for 40 years I totally agree with your initial premise. If you are writing the SQL you need to understand how it operates and the costs/tradeoffs you may be making. Your video content was very well organized and presented.
ОтветитьCan you please build a program for Postgres Performance essentials
ОтветитьGreat
ОтветитьVery useful, Thank you !!!
ОтветитьThis is wonderful course. I have been waiting to learn these techniques. Thank you so much for making it.
ОтветитьWhat's a great video, are concepts and strategies in this course applicable for PostgresDB ?? or for all SQL languages no matter whether it's SQL server or PostgressDB ????
ОтветитьThank you for sharing this good course.Can you share the ppt.
ОтветитьI have a query, it works very speed but suddenly it's taking more time, I can optimize but I want to know the root cause why it works before why it's not now ?, can you please tell me what can I do to know the root cause
ОтветитьKindly create a full course on SQL Server - DBA
ОтветитьHi..very useful video..Is there any training available for SQL performance tuning in dba or architect level?
ОтветитьPresentation was great.Can i get that ppt ?
ОтветитьCongratulations, very comprehensive course.
ОтветитьExactly what I need. Thank you, Mr. Rajan and FCC team.
ОтветитьOutstanding video and resource, thank you so much for making this!
ОтветитьI'm running SQL server 2017 and I don't get any results back when I run the query for 2.6. Also, if I compare the estimated execution plans for both queries I don't see an entry for "Top" with the query using "WHERE NOT EXISTS". For the first issue, I would guess that I could delete all records from the CourseEnrollments table where the CourseOfferingId is 56637 or 58317. With the second issue, I can only guess that my version of SQL is coming up with a different execution plan, and I have no control over that? UPDATE: Looking at the video again, I saw that there is an Index Seek on the CourseEnrollments table, so it looks like the database backup is missing that. I added the following index and my execution plan now matches what is shown in the video:
USE [Students]
GO
CREATE NONCLUSTERED INDEX IX_CourseEnrollments_CourseOfferingID
ON [dbo].[CourseEnrollments] ([CourseOfferingId])
GO
I'm glad have found this jewel. Thank you very much.
ОтветитьWhich version of sql server we will learn in this vide?
ОтветитьWonderful.. thank you so much 🙏
ОтветитьYou are watching the video 😭
ОтветитьAwesome Rajan ji it is a great one very easy explanation
ОтветитьThank you so much for very imp this and if you have any more like this then please upload it.
Ответитьnot working- download database backup files - students.bak is not visible to download. please check
ОтветитьCan't send 100 likes to your course 😂
ОтветитьVery elegant presentation with crisp and clear explanations. Thank you for the amazing effort. This helped me immensely and so would it have been for several others there I bet!
ОтветитьNo man. no hindu. Close the video.
Ответитьgreat tutorial. Thank you very much!
Ответитьis there any book from where we can study all these?
ОтветитьThanks Rajan - great course!
ОтветитьWonderful.
ОтветитьHello @codeMechanic .. I am using M1 MacBook Air and was wondering whether I can do this course? I currently installed Azure Data Studio on Docker but not able to do the students.bak exercise thus won't be able to run the queries.. where can I find the data so I do an import?
ОтветитьThank you so much Rajan for what i exactly looking for .
💯
Another codecamp course that doesn't indicate the version in the title or the description, which probably means it is an OLD version of SQL Server.
ОтветитьWhen he is comparing execution plans, why does he only look at estimated execution plans?? There can be a lot of useful information in the actual execution plan, which contains the actual values (actual number of rows read, etc.), which can differ a lot from the estimated values .... and such differences can be key in figuring out why a query runs slowly.
ОтветитьThanks
ОтветитьIf possible, run multiple queries at the same time. Results will be easier to compare when you have several execution plans in sight and can just hover a mouse over them for comparison.
Ответитьis this course gonna help in to learn
msql server
Indian people english. Suddenly close the video ...
ОтветитьThe Students.bak file is empty
Ответитьbro became indian in minutes
Ответитьindian accent makes me sleep...
ОтветитьHey! this is Rajan Arora. Thank you so much Beau for posting my tutorial. I hope this will help all the viewers to tune their SQL Statements in MS SQL Server. I hope we have more collaboration like this in the future!
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