Most Asked SQL interview questions and answers for Java Developers with examples | Code Decode

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  • Опубликовано: 29 дек 2024

Комментарии • 133

  • @vinaykumarjashtadhi3107
    @vinaykumarjashtadhi3107 3 года назад +26

    Hi, I was not able to find the best query for finding the nth highest salary of an employee, but with this video I found it very simple to remember, thanks for this video. Also, please proceed further with other SQL questions you mentioned at the last.

    • @CodeDecode
      @CodeDecode  3 года назад +1

      Thanks . Sure Vinay 🙂👍

    • @vengateshm2122
      @vengateshm2122 3 года назад +1

      Pls check out row number concept. We can also do with that approach.

  • @sarthakpalsharma4501
    @sarthakpalsharma4501 3 года назад +36

    Please upload further videos. It will increase the employment rate of India because your videos are gem.

    • @CodeDecode
      @CodeDecode  3 года назад +6

      Thanks a ton Sarthak 🤣🤣. Sure we will upload more videos 👍👍.

    • @manojpatil2457
      @manojpatil2457 3 года назад +2

      @@CodeDecode that cracked me up too 😂😂

    • @priteshbohrade8
      @priteshbohrade8 3 года назад +3

      A gem comment..

  • @ahmetyasarozer
    @ahmetyasarozer Год назад +3

    Hello. Thanks a lot for the videos. Cheers.
    Note: I guess there is a gaffe at 7:15: Indexes with more that one column are called "composite indexes", not "clustered indexes".

  • @Onelifechronicles
    @Onelifechronicles 3 года назад +3

    you are teaching in very good manner. loved your teaching style, keep uploading videos faslter ,it is helping a lot to me others
    thankyou.....

    • @CodeDecode
      @CodeDecode  3 года назад

      Thanks for the nice words sagar

  • @shubhamraj2683
    @shubhamraj2683 3 года назад +3

    The way you teach is superb.. the concepts i wasn't able to grab after learning for days, you explain it so effectively that I understand it in a single watch.

    • @CodeDecode
      @CodeDecode  3 года назад

      Thanks a ton Shubham. It means a lot 🙂👍🙏🙏

  • @chaitalijuare6135
    @chaitalijuare6135 3 года назад +2

    Nice video mam. Please add more such videos on SQL. Will be waiting for your videos.Thanks for your efforts.

  • @rohinikumari4
    @rohinikumari4 3 года назад +5

    Hi I loved this video sooooooooooooooo much!!!! Please please upload the second part as I've been waiting for this kinda stuff for a long time.

    • @CodeDecode
      @CodeDecode  3 года назад +1

      Sure, we will upload it soon. Thanks 🙂

  • @Priyankapatel-zm2vq
    @Priyankapatel-zm2vq 6 месяцев назад +1

    Your explanation is really good ❤❤

  • @bhavikjoshi1060
    @bhavikjoshi1060 2 года назад +3

    Thank you for all hard work you put.
    Please cover triggers, partition, stored procedure and functions.

    • @CodeDecode
      @CodeDecode  2 года назад

      sure bhavik we will try to cover it soon

  • @shruthishru3553
    @shruthishru3553 2 года назад +2

    wonderful video 😍..very easily understandable

  • @sachintambeshwar9712
    @sachintambeshwar9712 2 года назад +1

    Amazing video to the point and various approaches to solve also 👍👍

  • @srujan7350
    @srujan7350 2 года назад +1

    It is very good video to check out our Knowledge after learning. Thanks to #CodeDecode #Thanks

  • @harisharan4188
    @harisharan4188 3 года назад +2

    Thanks for the Video, For the query to find Nth highest salary, I believe LIMIT will not work in all the DB's. Could you please explain using TOP too and is there any other approach too for the same?

    • @CodeDecode
      @CodeDecode  3 года назад

      Ok will give more such options in next video 👍👍

  • @dpkpk1573
    @dpkpk1573 3 года назад +1

    Thanks for the video....Nice one, Yes please make a continuation of this topic.....

    • @CodeDecode
      @CodeDecode  3 года назад +1

      Sure we will upload more 👍👍. Thanks 🙂

  • @sidhanshuraghuvanshi1
    @sidhanshuraghuvanshi1 10 месяцев назад +1

    If we have same salary then we should use GROUP BY Sal . It will handle duplicate Sal conditions also.

  • @karthikeyanrm3446
    @karthikeyanrm3446 3 года назад +3

    Yes please continue this SQL series - really good. If possible do resume Microservices section - it's pending for more than 2 months 👍

    • @CodeDecode
      @CodeDecode  3 года назад +1

      Yes karthikeyan due to time crunch and festive season it is getting delayed we will surely upload it soon...

  • @jeevansaimanikanta782
    @jeevansaimanikanta782 3 года назад +2

    It was awesome explanation. Please do provide still more frequently asked sql questions.

    • @CodeDecode
      @CodeDecode  3 года назад

      Sure Jeevansai 👍. Will do that 👍🙂

  • @kanhiyajoshi5346
    @kanhiyajoshi5346 Год назад +1

    because of your channel , i am getting all interviews cleared.

    • @CodeDecode
      @CodeDecode  Год назад

      Many many congratulations on clearing your interviews Kanhiya 🎉🎉🎉🎊🎊. You rock👍. Keep learning keep shining ⭐✨⭐✨ Man

  • @anusuyadevi6256
    @anusuyadevi6256 3 года назад +1

    First I need to say thanks for such awesome videos in ur channel.Thanks a lot ..Please proceed to create more videos about SQL

    • @CodeDecode
      @CodeDecode  3 года назад

      Sure wr will do that👍🙂

  • @akshaykubade4210
    @akshaykubade4210 3 года назад +1

    yes, plz mam make more videos on further topics of sql asap. It will be so helpful... and thanks..

  • @sunitapatil7394
    @sunitapatil7394 3 года назад +1

    Please cover remaining....you are the best teacher. 👌

    • @CodeDecode
      @CodeDecode  3 года назад

      Thanks Sunita. Sure we will do that 🙂👍

  • @maruthikumar6811
    @maruthikumar6811 3 года назад +1

    First of all thanks a ton on starting this SQL series. I'm expecting video on angular interview questions, Please try to do a video on angular interview questions

    • @CodeDecode
      @CodeDecode  3 года назад

      Sure we are planning to start front end iqs too 🙂👍

  • @vaibhavnagrale8550
    @vaibhavnagrale8550 3 года назад +1

    Ma'am really appreciate your hardwork and efforts .. 👍
    Please make more video regarding this topic ..

    • @CodeDecode
      @CodeDecode  3 года назад

      Sure Vaibhav, we are planning next part soon 👍🙂

  • @vengateshm2122
    @vengateshm2122 3 года назад +1

    Thanks for the great effort. Pls put videos covering the question mentioned in the last section of the video.

  • @ahmadazeem7785
    @ahmadazeem7785 2 года назад +1

    You explain each and every concept so well.Thank you so much

  • @rudrapratapsingh213
    @rudrapratapsingh213 3 года назад +1

    Hi, I was not able to find the best query for finding the duplicate records in a table, also to show how many times all the columns have been repeatedly stored separately , can you create a video in which there would be much advance questions?
    Also I randomly found your channel and it's very helpful, this time I am looking to switch the job and by god's grace I found your channel and videos are very helpful to me.

    • @CodeDecode
      @CodeDecode  3 года назад

      Thanks Rudra, yrs nice topics 👍will create video on this topic 🙂👍

  • @saugatadey1248
    @saugatadey1248 3 года назад +1

    Yes we want more topics to cover...plss make a video...eagerly waiting.

    • @CodeDecode
      @CodeDecode  3 года назад +1

      Sure Saugata, we will do that 👍👍

  • @DivyaMahiChennai
    @DivyaMahiChennai 2 года назад +1

    Ur video’s are excellent very useful 100% Please upload more videos

    • @CodeDecode
      @CodeDecode  2 года назад

      Thanks 🙂🙂 , sure 👍👍

  • @ravindracharyvadyarapu
    @ravindracharyvadyarapu 3 года назад +1

    Waiting for next video ... kindly upload more videos on SQL

    • @CodeDecode
      @CodeDecode  3 года назад

      Sure ravindra we will upload the next part soon

  • @manoj47parmar
    @manoj47parmar 3 года назад +1

    Thanks for providing such video this is real helping me lot in interview preparation. Please create video on NOSQL db like: Cassandra,MongoDB also.

    • @CodeDecode
      @CodeDecode  3 года назад

      Sure Manoj, we are planning to do that👍👍

  • @bhavinmajethia7070
    @bhavinmajethia7070 Год назад +1

    keep up the great work!

  • @darkresonance1541
    @darkresonance1541 3 года назад +6

    You Guys are awesome. It's day by day helping me to achieve my goal. Seriously, this channel is a gem and I've recommended it to my friends as well.
    I have one request, please make a video on real time scenario java interview questions. Like techno - managerial or client rounds mostly which will ask questions on scenario based.
    You're hell of a life & time saver. Bless you guys!!

    • @CodeDecode
      @CodeDecode  3 года назад +3

      Thanks a ton🙂. This means a lot us. Yes we are about to create a video on real time scenerios that are asked in interviews. Thanks for the suggestion 👍👍

  • @rahulsolanki__
    @rahulsolanki__ 3 года назад +1

    Nice approach, But what if there are same salary for 2 employees ,
    1, Ram , 12000
    2, Aksha , 15000
    3, Manish, 12000
    4. Ritu , 10000
    5, Rohit, 8000
    Here third highest should be 10,000 ie 4th row

    • @CodeDecode
      @CodeDecode  3 года назад

      No, when ever u sort in descending order, no one expects that. Even if they does, u can use distinct. Right?

    • @alldemb9496
      @alldemb9496 2 года назад

      select * from employeee where salary =(select distinct salary from employee order by salary desc limit 0,1);

  • @qa8355
    @qa8355 3 года назад +1

    Well explained 👍👍

  • @LT-js2yk
    @LT-js2yk 2 года назад

    Great video! one correction though.. Clustered indexes are indexes whose order of the rows in the data pages corresponds to the order of the rows in the index.

  • @shikshadubey4082
    @shikshadubey4082 3 года назад +1

    Please add more series on most asked SQL interview questions.

    • @CodeDecode
      @CodeDecode  3 года назад +1

      sure shiksha you'll see next part in this week only

  • @AllinOne-et2on
    @AllinOne-et2on 3 года назад +1

    Please upload few more videos on SQL. Eagerly waiting for this videos

    • @CodeDecode
      @CodeDecode  3 года назад

      Sure we will create it soon.....

  • @jyothsnagangarapu1096
    @jyothsnagangarapu1096 3 года назад +1

    super video ,could please create another video for other questions in sql

    • @CodeDecode
      @CodeDecode  3 года назад +1

      sure jona we will upload next video this week

  • @rakeshkachhadiya
    @rakeshkachhadiya Год назад +1

    Well explained.

  • @AllinOne-et2on
    @AllinOne-et2on 3 года назад +1

    Truely you guys are producing an awesome content which help to crack interview easily.Till now did a great job and keep going ❤️❤️

  • @Jagdalekiran
    @Jagdalekiran 3 месяца назад

    Love your voice ❤

  • @mohitsoni2919
    @mohitsoni2919 2 года назад +1

    Code decode is the best

  • @neerajagarwal3176
    @neerajagarwal3176 3 года назад +1

    Please upload a videos for tuning of SQL queries.

    • @CodeDecode
      @CodeDecode  3 года назад

      Sure. It's a very useful topic. We will do that👍👍

  • @AmitSingh-tk1il
    @AmitSingh-tk1il 3 года назад +1

    Awesome question collection

  • @MohitKhare
    @MohitKhare Год назад +1

    thanks for the video.

  • @KumarGaurav-xDsoCH
    @KumarGaurav-xDsoCH 3 года назад +2

    First of all thanks a ton on starting this SQL series. I am expecting to refer only your videos, to brush up these topics. Waiting impatiently for next video 😁
    Please help me in implementing Spring Security with OAuth 2 and JWT. Any references having flow the way you explain, will be helpful...!

    • @CodeDecode
      @CodeDecode  3 года назад +1

      These are very nice topics. Thanks for the suggestion👍🙂. We will upload these in security series 👍👍

  • @tejachowdary309
    @tejachowdary309 2 года назад +1

    Please add more of SQL queries for interview

    • @CodeDecode
      @CodeDecode  2 года назад

      Sure we will create more videos on this

  • @shylashreec388
    @shylashreec388 3 года назад +1

    Please upload more videos on SQL.

    • @CodeDecode
      @CodeDecode  3 года назад

      Sure shylashree we will upload it soon

  • @priyankasundar3497
    @priyankasundar3497 Год назад +1

    We more such fine tune and best practices in SQL

  • @naleenyadav
    @naleenyadav 2 года назад +1

    You are awesome..

  • @priyankapaul5620
    @priyankapaul5620 2 года назад

    Plz make vedio on pl/sql stored procedure interview questions

  • @sarvan5002
    @sarvan5002 3 года назад

    I expected few more SQL questions in this video, but it covered only two. if you can add more in ur future videos.

  • @kudumulasivaramakrishnared6379
    @kudumulasivaramakrishnared6379 3 года назад +1

    Please do a video on tricky string interview questions

  • @amitthakur-yo6xw
    @amitthakur-yo6xw 3 года назад +1

    Please make more videos on sql interview questions Mam

    • @CodeDecode
      @CodeDecode  3 года назад

      Sure amit we will create it soon

  • @sushantsharma687
    @sushantsharma687 3 года назад +1

    Please create a video on some data structures questions

  • @pritikumari-n7o1h
    @pritikumari-n7o1h 9 месяцев назад

    Hi, This is the wrong statement "Indexes with more than one column are called Clustered indexes". It is the case of the "composite index.".You can have only one clustered index in one table, but you can have one clustered index on multiple columns, and that type of index is called a composite index.

  • @VLearnAutomationLabs
    @VLearnAutomationLabs 3 года назад +1

    pl cover more ql interview questions and upload a video will be useful for us

    • @CodeDecode
      @CodeDecode  3 года назад

      Yes it's in queue 🙂👍

  • @vikassontakke4403
    @vikassontakke4403 Год назад

    Indexes are stored outside the table na?? Then how they can be deleted after dropping a table

  • @sreejak6776
    @sreejak6776 3 года назад +1

    Tnx for the video

  • @sudhanshuk.2627
    @sudhanshuk.2627 3 года назад +1

    Mam please Cover more questions on SQL

    • @CodeDecode
      @CodeDecode  3 года назад

      sure sudhanshu we will cover it soon

  • @GrowwWithTime
    @GrowwWithTime 3 года назад +1

    which editor you are using

  • @LaxmiKitchen
    @LaxmiKitchen 3 года назад

    Hi ,kindly cover other topics also and upload the videos very useful

    • @CodeDecode
      @CodeDecode  3 года назад

      sure laxmi we will cover it soon

  • @chaitutom5789
    @chaitutom5789 3 года назад

    Can u do one video on ajax calls jdbc drivers using java client and serverside validations

  • @chakradharchakri7827
    @chakradharchakri7827 3 года назад +1

    Part 2 or more videos from SQL

    • @CodeDecode
      @CodeDecode  3 года назад

      Sure 👍 we will do that🙂👍

  • @swapniltravels
    @swapniltravels 3 года назад +1

    mam create more videos on sql pleaseeee

    • @CodeDecode
      @CodeDecode  3 года назад

      Sure Swapnil 👍 wr will do today🙂

  • @ayyasamys1011
    @ayyasamys1011 3 года назад +1

    Appreciate your work..
    Can you please upload a video for apache shiro authorization using dB tables and spring boot ?
    It will be very helpful. There is no proper examples found in google

  • @yashyadav5605
    @yashyadav5605 Год назад

    For third highest salary
    What if highest sal is get repeated?

  • @humaripragati
    @humaripragati 2 года назад

    One correction-It is not possible to create an index on a view

  • @sivaramakrishna2602
    @sivaramakrishna2602 2 года назад

    What if there are duplicate salaries ?

  • @personxyz1840
    @personxyz1840 3 года назад +1

    Is this mysql?