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

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  • Опубліковано 29 сер 2024

КОМЕНТАРІ • 132

  • @vinaykumarjashtadhi3107
    @vinaykumarjashtadhi3107 2 роки тому +25

    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  2 роки тому +1

      Thanks . Sure Vinay 🙂👍

    • @vengateshm2122
      @vengateshm2122 2 роки тому +1

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

  • @sarthakpalsharma4501
    @sarthakpalsharma4501 2 роки тому +31

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

    • @CodeDecode
      @CodeDecode  2 роки тому +6

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

    • @manojpatil2457
      @manojpatil2457 2 роки тому +2

      @@CodeDecode that cracked me up too 😂😂

    • @priteshbohrade8548
      @priteshbohrade8548 2 роки тому +2

      A gem comment..

  • @shubhamraj2683
    @shubhamraj2683 2 роки тому +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  2 роки тому

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

  • @GamingPitchWithParth
    @GamingPitchWithParth 2 роки тому +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  2 роки тому

      Thanks for the nice words sagar

  • @ahmetyasarozer
    @ahmetyasarozer Рік тому +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".

  • @rohinikumari4
    @rohinikumari4 2 роки тому +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  2 роки тому +1

      Sure, we will upload it soon. Thanks 🙂

  • @bhavikjoshi1060
    @bhavikjoshi1060 2 роки тому +3

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

    • @CodeDecode
      @CodeDecode  2 роки тому

      sure bhavik we will try to cover it soon

  • @sidhanshuraghuvanshi1
    @sidhanshuraghuvanshi1 6 місяців тому +1

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

  • @chaitalijuare6135
    @chaitalijuare6135 2 роки тому +2

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

  • @kanhiyajoshi5346
    @kanhiyajoshi5346 Рік тому +1

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

    • @CodeDecode
      @CodeDecode  Рік тому

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

  • @karthikeyanrm3446
    @karthikeyanrm3446 2 роки тому +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  2 роки тому +1

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

  • @darkresonance1541
    @darkresonance1541 2 роки тому +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  2 роки тому +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 👍👍

  • @Priyankapatel-zm2vq
    @Priyankapatel-zm2vq 2 місяці тому +1

    Your explanation is really good ❤❤

  • @rahulsolanki__
    @rahulsolanki__ 2 роки тому +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  2 роки тому

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

    • @alldemb9496
      @alldemb9496 2 роки тому

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

  • @harisharan4188
    @harisharan4188 2 роки тому +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  2 роки тому

      Ok will give more such options in next video 👍👍

  • @srujan7350
    @srujan7350 2 роки тому +1

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

  • @anusuyadevi6256
    @anusuyadevi6256 2 роки тому +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  2 роки тому

      Sure wr will do that👍🙂

  • @maruthikumar6811
    @maruthikumar6811 2 роки тому +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  2 роки тому

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

  • @jeevansaimanikanta782
    @jeevansaimanikanta782 2 роки тому +2

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

    • @CodeDecode
      @CodeDecode  2 роки тому

      Sure Jeevansai 👍. Will do that 👍🙂

  • @rudrapratapsingh213
    @rudrapratapsingh213 2 роки тому +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  2 роки тому

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

  • @akshaykubade4210
    @akshaykubade4210 2 роки тому +1

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

  • @manoj47parmar
    @manoj47parmar 2 роки тому +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  2 роки тому

      Sure Manoj, we are planning to do that👍👍

  • @shruthishru3553
    @shruthishru3553 2 роки тому +2

    wonderful video 😍..very easily understandable

  • @vaibhavnagrale8550
    @vaibhavnagrale8550 2 роки тому +1

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

    • @CodeDecode
      @CodeDecode  2 роки тому

      Sure Vaibhav, we are planning next part soon 👍🙂

  • @vengateshm2122
    @vengateshm2122 2 роки тому +1

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

  • @sachintambeshwar9712
    @sachintambeshwar9712 Рік тому +1

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

  • @dpkpk1573
    @dpkpk1573 2 роки тому +1

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

    • @CodeDecode
      @CodeDecode  2 роки тому +1

      Sure we will upload more 👍👍. Thanks 🙂

  • @KumarGaurav-xDsoCH
    @KumarGaurav-xDsoCH 2 роки тому +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  2 роки тому +1

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

  • @mohitsoni2919
    @mohitsoni2919 2 роки тому +1

    Code decode is the best

  • @shikshadubey4082
    @shikshadubey4082 2 роки тому +1

    Please add more series on most asked SQL interview questions.

    • @CodeDecode
      @CodeDecode  2 роки тому +1

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

  • @LT-js2yk
    @LT-js2yk 2 роки тому

    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.

  • @ahmadazeem7785
    @ahmadazeem7785 2 роки тому +1

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

  • @sunitapatil7394
    @sunitapatil7394 2 роки тому +1

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

    • @CodeDecode
      @CodeDecode  2 роки тому

      Thanks Sunita. Sure we will do that 🙂👍

  • @saugatadey1248
    @saugatadey1248 2 роки тому +1

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

    • @CodeDecode
      @CodeDecode  2 роки тому +1

      Sure Saugata, we will do that 👍👍

  • @AllinOne-et2on
    @AllinOne-et2on 2 роки тому +1

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

  • @AllinOne-et2on
    @AllinOne-et2on 2 роки тому +1

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

    • @CodeDecode
      @CodeDecode  2 роки тому

      Sure we will create it soon.....

  • @rakeshkachhadiya
    @rakeshkachhadiya Рік тому +1

    Well explained.

  • @DivyaMahiChennai
    @DivyaMahiChennai Рік тому +1

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

    • @CodeDecode
      @CodeDecode  Рік тому

      Thanks 🙂🙂 , sure 👍👍

  • @ravindracharyvadyarapu
    @ravindracharyvadyarapu 2 роки тому +1

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

    • @CodeDecode
      @CodeDecode  2 роки тому

      Sure ravindra we will upload the next part soon

  • @MohitKhare
    @MohitKhare Рік тому +1

    thanks for the video.

  • @user-yt5co6qq8w
    @user-yt5co6qq8w 5 місяців тому

    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.

  • @jyothsnagangarapu1096
    @jyothsnagangarapu1096 2 роки тому +1

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

    • @CodeDecode
      @CodeDecode  2 роки тому +1

      sure jona we will upload next video this week

  • @bhavinmajethia7070
    @bhavinmajethia7070 Рік тому +1

    keep up the great work!

  • @priyankasundar3497
    @priyankasundar3497 Рік тому +1

    We more such fine tune and best practices in SQL

  • @AmitSingh-tk1il
    @AmitSingh-tk1il 2 роки тому +1

    Awesome question collection

  • @naleenyadav
    @naleenyadav 2 роки тому +1

    You are awesome..

  • @qa8355
    @qa8355 2 роки тому +1

    Well explained 👍👍

  • @neerajagarwal3176
    @neerajagarwal3176 2 роки тому +1

    Please upload a videos for tuning of SQL queries.

    • @CodeDecode
      @CodeDecode  2 роки тому

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

  • @sarvan5002
    @sarvan5002 2 роки тому

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

  • @tejachowdary309
    @tejachowdary309 2 роки тому +1

    Please add more of SQL queries for interview

    • @CodeDecode
      @CodeDecode  2 роки тому

      Sure we will create more videos on this

  • @priyankapaul5620
    @priyankapaul5620 2 роки тому

    Plz make vedio on pl/sql stored procedure interview questions

  • @kudumulasivaramakrishnared6379
    @kudumulasivaramakrishnared6379 2 роки тому +1

    Please do a video on tricky string interview questions

  • @shylashreec388
    @shylashreec388 2 роки тому +1

    Please upload more videos on SQL.

    • @CodeDecode
      @CodeDecode  2 роки тому

      Sure shylashree we will upload it soon

  • @sushantsharma687
    @sushantsharma687 2 роки тому +1

    Please create a video on some data structures questions

  • @amitthakur-yo6xw
    @amitthakur-yo6xw 2 роки тому +1

    Please make more videos on sql interview questions Mam

    • @CodeDecode
      @CodeDecode  2 роки тому

      Sure amit we will create it soon

  • @sreejak6776
    @sreejak6776 2 роки тому +1

    Tnx for the video

  • @VLearnAutomationLabs
    @VLearnAutomationLabs 2 роки тому +1

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

    • @CodeDecode
      @CodeDecode  2 роки тому

      Yes it's in queue 🙂👍

  • @sudhanshuk.2627
    @sudhanshuk.2627 2 роки тому +1

    Mam please Cover more questions on SQL

    • @CodeDecode
      @CodeDecode  2 роки тому

      sure sudhanshu we will cover it soon

  • @LaxmiKitchen
    @LaxmiKitchen 2 роки тому

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

    • @CodeDecode
      @CodeDecode  2 роки тому

      sure laxmi we will cover it soon

  • @chaitutom5789
    @chaitutom5789 2 роки тому

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

  • @vikassontakke4403
    @vikassontakke4403 Рік тому

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

  • @ayyasamys1011
    @ayyasamys1011 2 роки тому +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

  • @GrowwWithTime
    @GrowwWithTime 2 роки тому +1

    which editor you are using

  • @swapnilkumar4157
    @swapnilkumar4157 2 роки тому +1

    mam create more videos on sql pleaseeee

    • @CodeDecode
      @CodeDecode  2 роки тому

      Sure Swapnil 👍 wr will do today🙂

  • @chakradharchakri7827
    @chakradharchakri7827 2 роки тому +1

    Part 2 or more videos from SQL

    • @CodeDecode
      @CodeDecode  2 роки тому

      Sure 👍 we will do that🙂👍

  • @yashyadav5605
    @yashyadav5605 Рік тому

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

  • @sivaramakrishna2602
    @sivaramakrishna2602 2 роки тому

    What if there are duplicate salaries ?

  • @humaripragati
    @humaripragati 2 роки тому

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

  • @personxyz1840
    @personxyz1840 2 роки тому +1

    Is this mysql?