Read millions of records from database using Java/Jdbc

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In this video I explained how we can read millions of records from database table using jdbc in optimized way to improve the performance.

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Good explanation, thanks.
What will you do in this scenario when there are joins with multiple tables?

ajeshaj

gidday mate! nice work, youre the only guy to think of answering such a basic question! well done

ampzamp

Really helpful. I got this question for my interview 👍

saket

Thank you so much sir.. This solution helped me a lot.
Thank you ..

NIRANJANREDDYBODDIREDDY

What if i have a records around 4 lakh and 200 columns will this be working or is there any better way to it other than this bcoz we are going show all the data at once in the ui without help of pagination

Arun-huud

Good information sir
Even same process will work with Postgres and spring boot?

gsssvr

How to pass a List of values in the SQL, instead of equal to(=), I want to use "in" clause
Eg. List<String> listOfName;
listOfName contains hundred of names

Select City from country where cust_name in (listOfName);

jayedfarooqui

Hello Sir, how to achieve it if we are using data jpa, (without getting any outofmemoryerror error)?

rabinarayansabat

How spring JPA will handle million of data?
is it possible to fetch millions of records using findall method ? Can you please share your comments.
This is interview questions. Thanks to share this kind of videos, this is really helpful to attend the interview.

karthikeyanr

I am having 9 crore record, what's the best method to retrieve.. this code is not visible.. can you please share

johnchristopher

thanks, but this does not work for db2 for some reason, strange

RudhinMenon

I have a program that reads around 1 million records from a oracle database on cloud but it takes me 2 minutes and a half... should I avoid writing too many logs? Could it slow it down, or is it the network bottlenecking me?

footballuniverse

Could you please create a github link for this code

Akshay-oxdc

Read millions of records from database using Java/Jdbc

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