L123: Explain Checkpoints and How Does it helps in reducing recovery time | DBMS Lectures in Hindi

[@jmstechnology47]

THANK YOU SIR!!

[@indradeepbhattacharya9681]

Gate 2015, set-2, 2 marks: Same Concept (Start, T4); (write, T4,y,2,3); (Start T1); (Commit, T4); (write, T1,z,5,7); (checkpoint); (Start, T2); (write, T2,x,1,9); (write, T3,z,7,2); Ans: Undo T3,T1; Redo T2

[@coolstuff9837]

How T2 is redo as it is not completed(not commited) , it should also be Undo ?? Please clear.

[@HelloWorld40408]

THANK YOU SIR !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[@VinayguptaIITBOMBAY]

Very nicely explain...thank you sir

[@divyaanshuagrawal3383]

thank you sir!

[@shreyasingh542]

Very nice explaination btw

[@lehaswinipalla3365]

Thank u very much sir, ur videos r very helpful

[@theultimatetruth7087]

LOVELY SIR THANKS

[@aasthajain92]

Nice explaination

[@pushmeetkaur879]

thankyou sir.

[@afzaalawan]

excellent

[@rakhikashyap8584]

Gd explaination

[@harshyallewar5876]

Nice

[@shubhamsarote9680]

Very good info shared

[@ritwik_shivam]

Nice explanation, small doubt - Are we actually redoing T2, T3 (completed transactions) or just writing their log files again in storage disk?

[@coolstuff9837]

I think redo means only saving values permanently onto database by checking log and undo means rollback and perform the whole log based method thing again.

[@bharatlondhe9995]

❤❤❤

[@parveensingla7636]

How to create checkpoints?

[@harshpreetsingh6971]

💯