Transaction Management in hibernate in spring boot Interview questions | with Example | Code Decode

In this video of code decode we have explained about transaction management in spring boot which is very important topic as interview perspective.
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Transaction management Part -2 : • Transaction Management...
How to implement transaction in spring / Hibernate
When you integrate Your hibernate with a spring boot project then you don’t need to use Hibernate Transaction Management, as you can leave it to the Spring declarative transaction management using @Transactional annotation.
Using @Transactional annotation.
What Is @Transactional?
We can use @Transactional to wrap a method in a database transaction.
It allows us to set
propagation,
isolation,
timeout,
read-only, and
rollback
conditions for our transaction.
How @Transactional works internally ?
Spring creates a proxy, or manipulates the class byte-code, to manage the creation, commit, and rollback of the transaction.
If we have a method like callMethod and we mark it as @Transactional, Spring will wrap some transaction management code around the invocation@Transactional method called:
createTransactionIfNecessary();
try {
addEmployee();
commitTransactionAfterReturning();
} catch (exception) {
rollbackTransactionAfterThrowing();
throw exception;
}
How to use @Transational
You can use this annotation on following in the lowest to highest priority order :
interface,
superclass,
class,
interface method,
superclass method, and
method.
The EmployeeService class is annotated at the class level with the settings for a read-only transaction,
but the @Transactional annotation on the addEmployee() method in the same class takes precedence over the transactional settings defined at the class level.
Usually it's not recommended to set @Transactional on the interface; however,
it is acceptable for cases like @Repository with Spring Data. We can put the annotation on a class definition to override the transaction setting of the interface/superclass:
What is a transaction?
Transactions manage the changes that you perform in one or more systems.
These can be databases, message brokers, or any other kind of software system.
The main goal of a transaction is to provide ACID characteristics to ensure the consistency and validity of your data.
What is ACID transaction?
ACID is an acronym that stands for atomicity, consistency, isolation, and durability:
Atomicity describes an all or nothing principle. Either all operations performed within the transaction get executed or none of them. That means if you commit the transaction successfully, you can be sure that all operations got performed. It also enables you to abort a transaction and roll back all operations if an error occurs.
The consistency characteristic ensures that your transaction takes a system from one consistent state to another consistent state. That means that either all operations were rolled back and the data was set back to the state you started with or the changed data passed all consistency checks. In a relational database, that means that the modified data needs to pass all constraint checks, like foreign key or unique constraints, defined in your database.
Isolation means that changes that you perform within a transaction are not visible to any other transactions until you commit them successfully
Durability ensures that your committed changes get persisted.
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[@amoldhanure6008]

Thank you so much for making this tutorial after watching this vedio I was able to explain about transactions in details in an interview and got selected.
A BIG THANK YOU AGAIN!

[@CodeDecode]

Many congratulations on clearing your interviews Amol. Keep learning keep shining 🌟🌟🌟

[@bablushaw6856]

You were well prepared. You covered a lot in 23 minutes. A very big thank you. And yes, I need another part of Transactional series.

[@CodeDecode]

Thanks Bablu 🙂👍

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[@Ravikumar-gj6qw]

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[@Ravikumar-gj6qw]

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[@iammanishvb7332]

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Is the 2nd Part available for this topic?

[@vidyasagarareddyagraharam9648]

Very well explained and yes waiting for the next set of Transactional attributes video.

[@CodeDecode]

Sure 🙂🙂

[@rahulshukla7883]

Very well explained 👏 waiting for other distributed transactional videos also. Thanks!!

[@CodeDecode]

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[@CodeDecode]

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[@rajesh541]

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[@CodeDecode]

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[@theprofessor252]

One of the best videos I have seen on transaction management from an interview perspective.

[@CodeDecode]

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[@sayanbiswas8847]

One of the most important topics. Thanks team Code Decode.

[@CodeDecode]

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[@CodeDecode]

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[@shrutik1863]

Thanks for the video, waiting for next video.

[@CodeDecode]

Sure Shruti 👍👍

[@raheshr.s3634]

Very good video. A lot about Transaction Management in simple words. Please add more details about XA transactions, Named Queries and Criteria Queries…. Thanks a lot

[@BajrangMargonda]

Very helpfull, was quite confused with this topic finally got cleared :)

[@CodeDecode]

🙂🙂glad to hear that🙂👍

[@satishkonda5818]

Lot of concept covered in this short video , this hleped me to get overall picture of transaction management . Thanks a lot , appreciate your effort !!

[@CodeDecode]

Thanks Satish 😊👍

[@user-nj4vx3dc1h]

Your explanation within minutes like, saving our time from understanding through different tutorials in hours or even days as well, Big thanks to you for your work, please keep posting on interview videos.

[@CodeDecode]

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[@CodeDecode]

Sure we will upload more like this

[@srjons_official]

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[@CodeDecode]

Thanks 🙂

[@ravi3743]

Thank you for the clear explanation. Please go ahead with the remaining propagation types.

[@CodeDecode]

Sure Ravi 👍🙂

[@prashantkarpe1022]

Nice Explanation ,waiting for part-2

[@CodeDecode]

Sure Prashant 👍

[@EktaBhalla-ck1bs]

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[@CodeDecode]

Sure we will upload it soon

[@ArjunKumar-zu2kl]

Very well explained, super. Thank you so much... :)

[@CodeDecode]

Thanks Arjun

[@vivekbhonsle631]

Very well explained.. Waiting for the next part on transactions

[@CodeDecode]

sure vivek we will create it soon

[@class7a330]

Excellent presentation Thankyou

[@CodeDecode]

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[@VivekSharma-vu9yl]

Dhanshu video. Thank you so much for in depth video. Got the exact clarity related to @Transactional.

[@CodeDecode]

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[@CodeDecode]

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[@kottesravanthi6399]

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[@CodeDecode]

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[@CodeDecode]

Sure Dhruv. Thanks 🙂🙂

[@RockMB]

Waiting for this one and got...
Thank you mam!!!🙂

[@CodeDecode]

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[@CodeDecode]

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Thank you mam keep upload others parts and topics also.

[@CodeDecode]

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[@sivasankarpalpandian2647]

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[@CodeDecode]

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[@CodeDecode]

Thanks Sangeeta 🙂👍

[@yamininjm]

Great explanation.. Thank u

[@CodeDecode]

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[@manognajoshik8465]

I have been badly waiting for this since so long..Mam, I request you to cover the remaining topics as well. I am a regular follower of your channel. Please do complete the remaining topics as well.

[@CodeDecode]

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[@jayakumarsivasankar9683]

Amazing explanation. very clear

[@CodeDecode]

Thanks

[@user-pu6ll6xd2b]

Excellent please continue

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[@VikashKumar-zx5lg]

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[@shabarishkumarelluru6214]

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[@CodeDecode]

Thanks Shabarish 🙂🙂👍

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[@CodeDecode]

Thanks for the nice words

[@vinodkarathiyaofficial]

Great explanation and RUclips is not for timepass and u proved it by doing such great things.
Small doubt if you have dependencies for primary key (here Employee) in another table as foreign key(here address) than if we pass it before it getting populated in Table and mark Address save as new transaction then what happened?

[@smahbuhs]

Thanks , it helps a lot

[@CodeDecode]

You're welcome

[@balavichitrasrinivasan4839]

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[@CodeDecode]

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[@niteeshchandanshire4381]

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[@CodeDecode]

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[@NikhilR07]

Thank you , explain remaining part☺️

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[@CodeDecode]

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[@CodeDecode]

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please come up with second part as well.really enjoyed your first session

[@CodeDecode]

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[@nagasails5386]

+1

[@gobindsah5712]

It cleared most of my doubts related to transaction. please create more videos on transaction. Thank you

[@CodeDecode]

Glad to hear that Gobind 🙂🙂👍👍

[@MrAbhimca50]

Beautiful explanation

[@CodeDecode]

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Eagerly waiting for the upcoming session sis. Please upload ASAP

[@CodeDecode]

Sure sure. Next then I will target to complete this 👍

[@sharadsingh2856]

Very helpful

[@CodeDecode]

Thanks

[@TimefliesFastt]

Excellent videos.Really helpful for candidates preparing for interview. Thanks a lot. Any chance to get the slides shown in the video for download.

[@pankajkm884]

Thanks for this video. Please complete all the remaining things like(Isolation, Propagation, ReadOnly, Rollback)

[@CodeDecode]

sure we will cover it soon

[@namratadawal8508]

Very helpful! Please cover remaining part as well

[@CodeDecode]

sure namrata we will cover it soon

[@nagasails5386]

+1

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[@CodeDecode]

Thanks Sudheer ☺️👍

[@simha691]

Please come with 2nd and remaining parts as well. Thank you. 👍

[@CodeDecode]

Sure 🙂🙂

[@ankitambekar6073]

It would be great if you upload the second part soon.. :)

[@CodeDecode]

Sure Ankit we will upload it soon

[@shravankulkarni786]

Also thank you for this video. Nicely explained with working code. Try to explain basic debugging in some video.

[@CodeDecode]

Sure I will 🙂👍

[@CodeDecode]

Thanks 🙂

[@nishabansal9151]

Yes please cover remaining sections also

[@CodeDecode]

Sure Nisha 🙂👍

[@layarichard6739]

Waiting for next part

[@CodeDecode]

Sure 🙂👍

[@tutikirohit1525]

such a great explanation. Thanks for creating such contents. Looking for JPA Mapping(one-one mapping, one-many mapping ....) in Spring boot. Will be happy if you can get a chance to create it.

[@CodeDecode]

Sure 👍 though we have covered it in hibernate interview questions series

[@Ravikumar-gj6qw]

Thanks

[@CodeDecode]

👍

[@syedfaizan5841]

thanks

[@CodeDecode]

Welcome

[@sbrmani85]

Please upload other parts as well. Thanks.

[@CodeDecode]

Sure Mani 👍👍

[@anandmohand1887]

Yes please please cover remaining

[@CodeDecode]

Sure Anand 👍👍

[@sumeght1878]

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[@CodeDecode]

😊 thanks 👍👍

[@manashranjan1267]

Nice explanation madam could you please cover all the topics which is better for us

[@CodeDecode]

Sure Manash 👍👍

[@manashranjan1267]

@@CodeDecode Thanks very much madam

[@RohitGupta-ek2nv]

mam how you are accessing your table in sts

[@trijitsadhu8497]

Great mam...I don't need @Transactional annotation because your teaching/Information can smoothly be saved to my brain without any exception. ..

[@CodeDecode]

😇😃 Thanks 👍

[@niteshbornare1985]

Can you please create a second part of the transaction propogation

[@syedfaizan5841]

best

[@mrugeshshah2786]

Please upload transactions isolation related videos.

[@sanjayrai9484]

Is there any part 2 of this series

[@hemanthkumarakshintala1126]

When can we expect the second part on this topic ? Eagerly waiting for the 2nd part..

[@CodeDecode]

Soon we will upload it 👍👍

[@soothinglofisongs-gl2qh]

How can we get those slides for reference?

[@VivekKumar-sd3bd]

content is very good and also explained very well but the volume is very low

[@jom1989Jo]

Please cover the remaining also... Waiting

[@CodeDecode]

Sure 👍🙂

[@hemanthkumarakshintala1126]

Plz cover the remaining topics as well

[@CodeDecode]

Sure Hemanth 👍👍

[@vipinpaliwal6318]

Please create for other propagation type of transactions. Thanks

[@CodeDecode]

Sure Vipin 👍🙂

[@VikashKumar-zx5lg]

please create next video on this

[@RK-xg3qp]

calling transactional method from non transactional method in same class - why rollback not working in this case?

[@bharathkumar134]

Can you extend the remaining propagation

[@ShubhamShinde-yg8cu]

EnableTransactionManagement annotation on main class is mandatory or not??

[@mdsaif4696]

@EnableTransactionManagement and platformTransactionManagement concept?

[@pavanpavankalyan2790]

why your not creating any video about JUnit test cases for REST API S, hope u create a video soon

[@CodeDecode]

Thanks for ur suggestion Pavan. We will do that 👍👍

[@PrateekJain348]

Any video on managing transactions in Microservice architecture?

[@CodeDecode]

Yeah we have on saga dp

[@CodeDecode]

ruclips.net/video/Fe_qPM81hJ8/видео.html

[@distudio7499]

I have a problem.. Imagine I have 2000 accounts to deposite money. I want confirm that all account should be deposited.If one failed I want to roll back all. Then use the transactional annotation. But no of accounts getting increasing the execution time getting increasing unexpectedly.I think transaction keep holding all the objects in the memory. How can I manage this issue?

[@dreamplaying-wg1jn]

Upload others part too

[@CodeDecode]

Sure 👍🙂🙂

[@shravankulkarni786]

At 20:21 what would have happened, had u not commented that address.setEmp(employee) ; ???

[@CodeDecode]

Foreign key constraint voilated and you may not be able to add/ delete if reference is present

[@sravankumar9609]

Part 2 please

[@CodeDecode]

Sure Sravan 👍🙂

[@vidyabarge7170]

What will happen if any exception throws after saving the address in the required new case

[@CodeDecode]

In the required new case. A new transaction is created hence both transaction are independent of each other. But since we haven't handled using try catch, it can be propagated to parent. Handling there is a necessity else it too will get roll back.

[@vidyabarge7170]

@@CodeDecode Thanks. Very informative video. 👍

[@girish44444]

pls crete 2nd part of it

[@CodeDecode]

ruclips.net/video/GqpQ3J40Op8/видео.html

[@chaitutom5789]

Hi mam.i think you are from bangalore white field right...please do more on microservices apache kafka ...

[@CodeDecode]

Ohh that's just a random address 🙂. Sure we will do more videos o n kafka ms

[@Ravikumar-gj6qw]

Do more videos

[@CodeDecode]

Sure