Oracle Interview Question - oracle index related questions - BTREE index in oracle

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  • เผยแพร่เมื่อ 7 ธ.ค. 2024

ความคิดเห็น • 113

  • @Variable.Constant.
    @Variable.Constant. 4 ปีที่แล้ว +13

    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.

    • @SivaAcademy
      @SivaAcademy  4 ปีที่แล้ว

      Thanks a lot Kapil, 🙏💐💐

  • @Rizwan079
    @Rizwan079 4 ปีที่แล้ว +4

    Excellent explaination, Thanks a lot for making the things simple and easy to understand. 👌

    • @SivaAcademy
      @SivaAcademy  4 ปีที่แล้ว

      Welcome bro 🙏💐💙

  • @asifsoft7861
    @asifsoft7861 5 ปีที่แล้ว +1

    One of the best video on indexes. Thanks for the vdo.

  • @asifsoft7861
    @asifsoft7861 5 ปีที่แล้ว +3

    One of the best video on indexes. Thank you!

  • @vivektarab16
    @vivektarab16 หลายเดือนก่อน

    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

  • @poonamchauhan5502
    @poonamchauhan5502 7 หลายเดือนก่อน

    Best Video on Internet related to INDEX.

  • @theboharsingh
    @theboharsingh ปีที่แล้ว

    well structured and organized way to share knowledge.....really good..

  • @dhrubaswain1578
    @dhrubaswain1578 3 ปีที่แล้ว

    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

    • @SivaAcademy
      @SivaAcademy  3 ปีที่แล้ว

      Welcome :-), Its my pleasure

  • @satya8763
    @satya8763 4 ปีที่แล้ว +1

    more than expected...keep it up

  • @abdulrehman-io7uz
    @abdulrehman-io7uz 2 ปีที่แล้ว

    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.

    • @SivaAcademy
      @SivaAcademy  2 ปีที่แล้ว

      Welcome Abdul 💐🙏

  • @rampradeepkalivarapu3722
    @rampradeepkalivarapu3722 3 ปีที่แล้ว

    Really addicted to your vedios.....

  • @aabha21aug
    @aabha21aug 5 ปีที่แล้ว +2

    Too good. Keep up the good work!!

    • @SivaAcademy
      @SivaAcademy  5 ปีที่แล้ว

      @aabha, Thanks 🙏 for your comment :-)

  • @user-dn9fo8xl8o
    @user-dn9fo8xl8o 3 ปีที่แล้ว

    You are making it easy for us!! Fantastic Job Mr. Siva. I would surely recommend your videos to my friends 👌.

    • @SivaAcademy
      @SivaAcademy  3 ปีที่แล้ว

      My pleasure bro, thank you for your comments 💐💐

  • @ramireddyt1506
    @ramireddyt1506 5 ปีที่แล้ว +4

    Please post performance tuning videos

  • @sandeepal1
    @sandeepal1 3 ปีที่แล้ว

    Amazing content and well explained. I learnt alot. Thanks a ton🙏🙏👍👍

    • @SivaAcademy
      @SivaAcademy  3 ปีที่แล้ว +1

      Its my pleasure 💐💐

  • @vidyah8787
    @vidyah8787 3 ปีที่แล้ว

    Outstanding explanation sir. Thank you very much for your time and effort.
    🙏🙏

  • @sadashiv975
    @sadashiv975 3 ปีที่แล้ว

    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.

    • @SivaAcademy
      @SivaAcademy  3 ปีที่แล้ว

      Thank you for your comments, and thanks a lot for sharing with your friends, 💐💐🙏

  • @achyutdeokatepatil897
    @achyutdeokatepatil897 5 ปีที่แล้ว

    What a gerat explaination and knowledge. thanks dada..

    • @SivaAcademy
      @SivaAcademy  5 ปีที่แล้ว

      @Achyut, 🙏🙏🙏 for your comments bro

  • @suryatanyarout3551
    @suryatanyarout3551 3 ปีที่แล้ว

    Your videos are so good n informative that I forgot to like and comment

    • @SivaAcademy
      @SivaAcademy  3 ปีที่แล้ว

      My pleasure, thank you 💐

  • @shitaljadhav5294
    @shitaljadhav5294 3 ปีที่แล้ว

    Very nice more than expected.

    • @SivaAcademy
      @SivaAcademy  3 ปีที่แล้ว

      Welcome 💐🙏💐

  • @arunrocketz
    @arunrocketz 4 ปีที่แล้ว +1

    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 ..

    • @SivaAcademy
      @SivaAcademy  4 ปีที่แล้ว

      Thank you, sure please stay tuned

  • @rajshkr786
    @rajshkr786 4 ปีที่แล้ว +1

    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.

  • @venkkatmerla4389
    @venkkatmerla4389 3 หลายเดือนก่อน

    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

    • @SivaAcademy
      @SivaAcademy  3 หลายเดือนก่อน

      Welcome bro, sure please stay tuned, will cover in upcoming videos

  • @AliBaba-mx8of
    @AliBaba-mx8of 2 ปีที่แล้ว

    Good explanation sir 👏

  • @vilasgaikwad4141
    @vilasgaikwad4141 5 ปีที่แล้ว

    Very nice explanations...thanks siva

    • @SivaAcademy
      @SivaAcademy  5 ปีที่แล้ว

      @Vilas, Thanks for your comments :-)

  • @rajabaskar1105
    @rajabaskar1105 4 ปีที่แล้ว

    Best explanation ever seen😘😍😍
    Pls put vedios regards performance tuneing

    • @SivaAcademy
      @SivaAcademy  4 ปีที่แล้ว

      Sure 😊, Thanks for your comments

  • @anthamsuprithareddy1997
    @anthamsuprithareddy1997 3 ปีที่แล้ว

    Good explanation I liked it

  • @vedashwi
    @vedashwi 3 ปีที่แล้ว

    well explained,thank u so much..

  • @FactsHeaven
    @FactsHeaven 3 ปีที่แล้ว

    Great expectation

  • @chinmayakumarpadhee9235
    @chinmayakumarpadhee9235 2 ปีที่แล้ว +1

    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?

  • @manojjethar2202
    @manojjethar2202 หลายเดือนก่อน

    Hi Siva,
    Could you please provide information about Cluster index and non cluster index

  • @deepti7397
    @deepti7397 3 ปีที่แล้ว

    Superb explanation

  • @16aksi
    @16aksi 5 ปีที่แล้ว

    Excellent Explanation!!!

    • @SivaAcademy
      @SivaAcademy  5 ปีที่แล้ว

      @achyut, Thanks for your comment :-)

  • @bhojrajsingh8737
    @bhojrajsingh8737 ปีที่แล้ว

    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??

  • @venkkatmerla4389
    @venkkatmerla4389 3 หลายเดือนก่อน

    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

  • @elenabit1095
    @elenabit1095 4 ปีที่แล้ว

    Thank you so much sir for explaining so nicely....

  • @kbalanandam
    @kbalanandam 4 ปีที่แล้ว

    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.

  • @RamGuptaoracle
    @RamGuptaoracle 5 ปีที่แล้ว

    Very nice Explanation Siva

  • @vilasmuley9590
    @vilasmuley9590 5 ปีที่แล้ว +1

    Fantastic explanation. But i have a doubt. When we create a btree index on ''ename'' column suppose, then how sorting will take place?

    • @SivaAcademy
      @SivaAcademy  4 ปีที่แล้ว +1

      sorting based on Alpha char, similar to numerical sorting, string sorting will take place

  • @knowledgebox9691
    @knowledgebox9691 2 ปีที่แล้ว

    Like always you nailed it bro🔥

    • @SivaAcademy
      @SivaAcademy  2 ปีที่แล้ว

      thank you bro

    • @knowledgebox9691
      @knowledgebox9691 2 ปีที่แล้ว

      @@SivaAcademy Would be great if you post video on how to read explain plan.

    • @SivaAcademy
      @SivaAcademy  2 ปีที่แล้ว +1

      Sure bro

  • @veggourmet1467
    @veggourmet1467 4 ปีที่แล้ว

    thanks bro for clear explanations.....

  • @sankarN-wd5nd
    @sankarN-wd5nd 5 หลายเดือนก่อน

    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 ?

  • @nandakumar4776
    @nandakumar4776 2 ปีที่แล้ว

    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)?

  • @ManojKumar-il8vt
    @ManojKumar-il8vt 6 ปีที่แล้ว

    Nice explanation sir

  • @garigasravyasree1631
    @garigasravyasree1631 2 ปีที่แล้ว

    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.

  • @abhinav121rocks
    @abhinav121rocks 4 ปีที่แล้ว

    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....

  • @1986pramod
    @1986pramod 4 ปีที่แล้ว

    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.

  • @siddhartharao8490
    @siddhartharao8490 4 ปีที่แล้ว

    Sir, what does "alter table emp modify eno not null" return?

  • @akshayphadnis
    @akshayphadnis 4 ปีที่แล้ว

    Can we create a unique index on a non- unique column? If yes, how will indexing work?

  • @sudarshanraj3783
    @sudarshanraj3783 4 หลายเดือนก่อน

    Can you explain about global index vs local index

  • @kamaleshr6419
    @kamaleshr6419 4 ปีที่แล้ว

    Hello Sir, what are the privileges we need to have to access v$sql?. Please let me know

  • @champakalibhattacharjee9679
    @champakalibhattacharjee9679 2 ปีที่แล้ว

    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...

    • @SivaAcademy
      @SivaAcademy  2 ปีที่แล้ว

      Sure, will add to upcoming list of questions, please stay tuned bro

  • @neerajmishra14
    @neerajmishra14 5 ปีที่แล้ว

    Amazing, thanks

    • @SivaAcademy
      @SivaAcademy  5 ปีที่แล้ว

      @Neeraj, Thanks for your comment :-)

  • @firebird9095
    @firebird9095 4 ปีที่แล้ว

    Diffrence between selectivity and cardinality?

  • @TysonGill
    @TysonGill 3 ปีที่แล้ว

    This is Gold

  • @palashtarumandal5431
    @palashtarumandal5431 6 ปีที่แล้ว

    please create one video on plsql collections (nested table, associative array) in details

    • @SivaAcademy
      @SivaAcademy  6 ปีที่แล้ว

      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.

    • @palashtarumandal5431
      @palashtarumandal5431 6 ปีที่แล้ว

      @@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.

    • @SivaAcademy
      @SivaAcademy  6 ปีที่แล้ว +1

      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.

  • @brizesalvator8086
    @brizesalvator8086 4 ปีที่แล้ว

    explained perfectly...

  • @muralik479
    @muralik479 4 ปีที่แล้ว

    pls give session Oracle HINTS and which one has to be used based in scenario

    • @SivaAcademy
      @SivaAcademy  4 ปีที่แล้ว

      Sure bro please stay tuned

  • @dhavalpandya4162
    @dhavalpandya4162 4 ปีที่แล้ว

    Hi Sir,
    Plz explain index on null values also

    • @SivaAcademy
      @SivaAcademy  4 ปีที่แล้ว

      Sure, please stay tuned 👍, I will add it to upcoming video list

  • @raghuveerlakkampelli9591
    @raghuveerlakkampelli9591 3 ปีที่แล้ว

    Please Explain how to take AWR Report

  • @dasubabuch1596
    @dasubabuch1596 4 ปีที่แล้ว

    Siva, u forgot to explain the full table scan. Can u pls check it.

    • @SivaAcademy
      @SivaAcademy  4 ปีที่แล้ว

      Will add to upcoming video please stay tuned

  • @akashsoni6419
    @akashsoni6419 5 ปีที่แล้ว

    Could you please clarify more IOT

    • @SivaAcademy
      @SivaAcademy  5 ปีที่แล้ว

      Sure, please stay tuned.

  • @jay.shah96
    @jay.shah96 4 ปีที่แล้ว

    So primary key index is a b-tree type index?

  • @shiveshpandey1952
    @shiveshpandey1952 5 ปีที่แล้ว

    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..

    • @SivaAcademy
      @SivaAcademy  5 ปีที่แล้ว

      @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.

    • @Dineshk0416
      @Dineshk0416 4 ปีที่แล้ว

      @@SivaAcademy Can you please share link for performance tuning. i Couldn't find it.

  • @jiyelaljaiswal7458
    @jiyelaljaiswal7458 4 ปีที่แล้ว

    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 ?

  • @abbeydudeuk
    @abbeydudeuk 3 ปีที่แล้ว

    now I know how to do scams.