Dear Siva, There is a lot of content on the internet but this one is surely a masterpiece. Also, you have put so much effort in editing the videos so that the explanation is creating an impact. Kudos!! Would love to see more videos on performance tuning. Subscribed and going to share your channel in my network.
The explanation is at its best. Ready to spent time and learn from here instead of browsing here and there. Please continue the basic and simplicity of the concepts
As mentioned you have created an index and queried in the condition using those indexed columns with min and max functions, so instead of having full index(min/max) being used in the access path, isn't that a feasible way to create a function-based index using min and max functions on those columns.
00:56 - Start with B - Tree 02:34 - What is a B - Tree Index 07:13 - Where to Find Metadata Information 9:09 - How to find Whether the Index is used by the Query 11:52 - When to Create B Tree Index 13:40 - Range Scan 15:14 - Unique Scan 19:52 - Index Fast Full Scan 22:04 - Advantages and Disadvantages of B - Tree Index
Hi Shiv, Amazing knowledge transfer is happening from your "Shiv Academy". I am gaining knowledge from your end. I have searched a lot to learn PLSQL here and there but finally got the right path. I have already shared your channel in my groups. I just loved it. Thank you so much.
Hi Siva. Loved your explanation. One doubt what is the best practice to create index ? Before insertion of data or after insertion of data in the table?
Great explanation and i just got immersed in ur video and with ur knowledge..Learning a lot by watching ur videos daily..one request sir can you please upload the day to day activities of a sql/plsql developer ..
Hi Siva, Thank you for the vedio your explanation is super good, I don’t know how I missed your vedios from last 5 years , very informative content. If there some possibility try to do some tunning vedios in depth
Hi Shiva, In Index fast full scan you have created index on emo no and sal column but you have not used any one of the column in where condition. Will index hit in this scenerio??
How the B-Tree index will work on transactional table? Where huge volume of data is getting inserted everyday. Will it re-generate / refresh the B-Tree every time when the table in updated(for each transaction)?
If we created composite index on three columns and we are we using in where clause only two columns or one column from that index. Will it still do the index scan ?
Hi Siva, I am watching your vedios from a couple of weeks ago, I just want to know about the domain index purpose and it is usage , when I am creating a domain index it is taking lot of time , I have gone through some blogs but I did not get the clear , can you please help on this domain index . Thanks
Sir.I have seen that we have 2 types of index like clustered and non clustered. But here there are other index types. Can you tell what exactly need to answer for types of indexes.
Sir... If function based index is used bcz otherwise we cant use functions in an SQL statement and yet have the index get used... Then howcome we were able to use sum and max functions on a non function based index....
Can there be multiple indexes created with same name. If not, then, is there a oracle that oracle would show composite index as Normal. I can see 2 columns in USER_IND_COLUMNS. But, USER_INDEXES > Index Type is Normal. Can you provide some guidance on such scenario.
Hi Palash, Thanks for your comment, Here is the video series for collection th-cam.com/play/PLb1qVSx1k1VpAFTXopXvAh_D3PLcTntdm.html more collection Videos will be coming soon in this series, please stay tuned.
@@SivaAcademy Hi Siva thanks for your reply. Your vedios are really good. I saw ur collection vedios ,they are at basic level.could you please carate one vedio with when to use varry ,when to use nested table and frequently asked questions in interview.it will be very helpful.
Hi Palash, Sure I will create one video covering the difference and when to use what time of collection. Once the basic set of collection videos are uploaded, i will upload the differences and interview questions specific to collection, so its easy for every one to follow. However, i will try to cover the most important collection related interview questions as soon as possible. Thanks for your comments, Stay tuned for more videos.
Hi sir this the most important video for the interview whether the fresher or experience guy .Sir if you have separate video for the performance tuning please share. Thanks Sir..
@Shivesh, I just started performance tuning video series...will be posting all the performance tuning videos in that series, please stay tuned for more videos.
explanation Plan show index when I execute : select count(*) from table_name where ? explanation Plan DOES NOT show index when I execute : select * from table_name where ?
![สาวเมืองเพชร - ธีเดช ทองอภิชาติ [Official MV]](http://i.ytimg.com/vi/kEt7F9PvO3I/mqdefault.jpg)
Dear Siva, There is a lot of content on the internet but this one is surely a masterpiece. Also, you have put so much effort in editing the videos so that the explanation is creating an impact.
Kudos!! Would love to see more videos on performance tuning. Subscribed and going to share your channel in my network.
Thanks a lot Kapil, 🙏💐💐
One of the best video on indexes. Thanks for the vdo.
Best Video on Internet related to INDEX.
One of the best video on indexes. Thank you!
Welcome
Excellent explaination, Thanks a lot for making the things simple and easy to understand. 👌
Welcome bro 🙏💐💙
The explanation is at its best. Ready to spent time and learn from here instead of browsing here and there. Please continue the basic and simplicity of the concepts
Welcome :-), Its my pleasure
Really addicted to your vedios.....
Please post performance tuning videos
well structured and organized way to share knowledge.....really good..
Thank you bro
Dear Siva, your way of explaining is quite fascinating. You are literally making PLSQL very easy to understand for naive people like me. Thanks, Dear.
Welcome Abdul 💐🙏
As mentioned you have created an index and queried in the condition using those indexed columns with min and max functions, so instead of having full index(min/max) being used in the access path, isn't that a feasible way to create a function-based index using min and max functions on those columns.
more than expected...keep it up
00:56 - Start with B - Tree
02:34 - What is a B - Tree Index
07:13 - Where to Find Metadata Information
9:09 - How to find Whether the Index is used by the Query
11:52 - When to Create B Tree Index
13:40 - Range Scan
15:14 - Unique Scan
19:52 - Index Fast Full Scan
22:04 - Advantages and Disadvantages of B - Tree Index
Too good. Keep up the good work!!
@aabha, Thanks 🙏 for your comment :-)
Hi Shiv, Amazing knowledge transfer is happening from your "Shiv Academy". I am gaining knowledge from your end. I have searched a lot to learn PLSQL here and there but finally got the right path. I have already shared your channel in my groups. I just loved it. Thank you so much.
Thank you for your comments, and thanks a lot for sharing with your friends, 💐💐🙏
Your videos are so good n informative that I forgot to like and comment
My pleasure, thank you 💐
You are making it easy for us!! Fantastic Job Mr. Siva. I would surely recommend your videos to my friends 👌.
My pleasure bro, thank you for your comments 💐💐
Outstanding explanation sir. Thank you very much for your time and effort.
🙏🙏
Welcome 💐🙏
Hi Siva. Loved your explanation.
One doubt what is the best practice to create index ? Before insertion of data or after insertion of data in the table?
Hi Siva,
Could you please provide information about Cluster index and non cluster index
What a gerat explaination and knowledge. thanks dada..
@Achyut, 🙏🙏🙏 for your comments bro
Great explanation and i just got immersed in ur video and with ur knowledge..Learning a lot by watching ur videos daily..one request sir can you please upload the day to day activities of a sql/plsql developer ..
Thank you, sure please stay tuned
Very nice more than expected.
Welcome 💐🙏💐
Can you share video on Hash, Nested Loop and Sort Merge join along with in depth of knowledge in terms of the way they works ? Thank you.
Hi Siva,
Thank you for the vedio your explanation is super good, I don’t know how I missed your vedios from last 5 years , very informative content.
If there some possibility try to do some tunning vedios in depth
Welcome bro, sure please stay tuned, will cover in upcoming videos
Good explanation sir 👏
Thank you
Amazing content and well explained. I learnt alot. Thanks a ton🙏🙏👍👍
Its my pleasure 💐💐
Hi Shiva,
In Index fast full scan you have created index on emo no and sal column but you have not used any one of the column in where condition. Will index hit in this scenerio??
Fantastic explanation. But i have a doubt. When we create a btree index on ''ename'' column suppose, then how sorting will take place?
sorting based on Alpha char, similar to numerical sorting, string sorting will take place
How the B-Tree index will work on transactional table? Where huge volume of data is getting inserted everyday. Will it re-generate / refresh the B-Tree every time when the table in updated(for each transaction)?
Great expectation
Thank you bro
well explained,thank u so much..
Welcome bro 💐
thanks bro for clear explanations.....
Welcome bro 💐
Thank you so much sir for explaining so nicely....
Welcome 🙏
Very nice explanations...thanks siva
@Vilas, Thanks for your comments :-)
Can you explain about global index vs local index
Good explanation I liked it
My pleasure
If we created composite index on three columns and we are we using in where clause only two columns or one column from that index. Will it still do the index scan ?
This is Gold
Superb explanation
Thank you 🙂
Hi Siva,
I am watching your vedios from a couple of weeks ago, I just want to know about the domain index purpose and it is usage , when I am creating a domain index it is taking lot of time , I have gone through some blogs but I did not get the clear , can you please help on this domain index .
Thanks
Can we create a unique index on a non- unique column? If yes, how will indexing work?
Excellent Explanation!!!
@achyut, Thanks for your comment :-)
Sir.I have seen that we have 2 types of index like clustered and non clustered. But here there are other index types. Can you tell what exactly need to answer for types of indexes.
Sir... If function based index is used bcz otherwise we cant use functions in an SQL statement and yet have the index get used... Then howcome we were able to use sum and max functions on a non function based index....
Can there be multiple indexes created with same name. If not, then, is there a oracle that oracle would show composite index as Normal. I can see 2 columns in USER_IND_COLUMNS. But, USER_INDEXES > Index Type is Normal. Can you provide some guidance on such scenario.
Like always you nailed it bro🔥
thank you bro
@@SivaAcademy Would be great if you post video on how to read explain plan.
Sure bro
Very nice Explanation Siva
Thank you 🙏
Sir, what does "alter table emp modify eno not null" return?
Best explanation ever seen😘😍😍
Pls put vedios regards performance tuneing
Sure 😊, Thanks for your comments
Diffrence between selectivity and cardinality?
Siva please teach us to debug a very big query that are mainly found in real life examples..300 lines or 3000 lines code...procedure function etc...
Sure, will add to upcoming list of questions, please stay tuned bro
pls give session Oracle HINTS and which one has to be used based in scenario
Sure bro please stay tuned
Hello Sir, what are the privileges we need to have to access v$sql?. Please let me know
please create one video on plsql collections (nested table, associative array) in details
Hi Palash, Thanks for your comment,
Here is the video series for collection
th-cam.com/play/PLb1qVSx1k1VpAFTXopXvAh_D3PLcTntdm.html
more collection Videos will be coming soon in this series, please stay tuned.
@@SivaAcademy Hi Siva thanks for your reply. Your vedios are really good. I saw ur collection vedios ,they are at basic level.could you please carate one vedio with when to use varry ,when to use nested table and frequently asked questions in interview.it will be very helpful.
Hi Palash, Sure I will create one video covering the difference and when to use what time of collection. Once the basic set of collection videos are uploaded, i will upload the differences and interview questions specific to collection, so its easy for every one to follow. However, i will try to cover the most important collection related interview questions as soon as possible. Thanks for your comments, Stay tuned for more videos.
explained perfectly...
Thanks bro!! :-)
Nice explanation sir
Thanks Manoj
Amazing, thanks
@Neeraj, Thanks for your comment :-)
Hi Sir,
Plz explain index on null values also
Sure, please stay tuned 👍, I will add it to upcoming video list
Please Explain how to take AWR Report
Yeah, please stay tuned
Yeah we loved it
Siva, u forgot to explain the full table scan. Can u pls check it.
Will add to upcoming video please stay tuned
Could you please clarify more IOT
Sure, please stay tuned.
So primary key index is a b-tree type index?
Yes
Hi sir this the most important video for the interview whether the fresher or experience guy .Sir if you have separate video for the performance tuning please share.
Thanks Sir..
@Shivesh, I just started performance tuning video series...will be posting all the performance tuning videos in that series, please stay tuned for more videos.
@@SivaAcademy Can you please share link for performance tuning. i Couldn't find it.
explanation Plan show index when I execute : select count(*) from table_name where ?
explanation Plan DOES NOT show index when I execute : select * from table_name where ?
now I know how to do scams.