Excited to partner #JCON2023!
Calling all @DelhiJUG members to register for the exciting online event!
Don't miss out on the amazing opportunity to learn from the best and brightest in the Java community.
@eMalaGupta@_vikasM
UPDATE is equivalent to DELETE + INSERT in Postgres
Postgres is a transactional database that uses MVCC to ensure consistency while enabling concurrent data access. As a result, when you update a record, the old version of the record is marked as deleted, and a new version is created.
Check the picture:
* First, we insert a record with 'John'. It's placed in storage at the offset (0,1). The value in xmin is the ID of the transaction that created this record version (806).
* Next, we update the record's name to 'Tom'. This transaction deletes the previous version (xmax=808) and inserts a new one (xmin=808) at the offset (0,2).
Learn more Postgres tips for beginners: https://t.co/11Ozlix6Ft
I showcased Apache Pinot, Kafka and Apache Superset on my local K8s on my laptop, running realtime data analytics via Kafka to Pinot and viewable as a chart in Superset.
All this live coding in about 40 minutes. Best feeling ever!
@apachekafka@ApachePinot@apachesuperset
📺 How to enable change data capture with #Postgres on Amazon RDS? Find out in my latest data streaming quick tip, showing you from scratch how to set up a DB with CDC enabled, so you can ingest change events using #Debezium, #FlinkCDC, or #Decodable 🚀!
https://t.co/0djZREfLje
First rule of database design I learned more than 20 years ago: never use the BOOL column type, use a CHAR(1) instead.
At one point, it will evolve into more than 2 values and you'll be faced with a painful migration.
📢 Announcing ReSession Data Structures and Algorithms Workshop (A https://t.co/91K3NK7ULo initiative)
Facing challenges from recession? Gain an edge in the interviews with expert led sessions.
Date: 4 July to 7 July 8:00PM to 9:00PM IST
Link to RSVP: https://t.co/CRw3ubuEbJ
Hi all,
Just published a blog on - Using JavaScript Promises for Next Page Token-Based Recursive API Calls https://t.co/qVEAV9wdwG
Please support and share it with your friends, family and co-workers!
It's really good idea to test your application and you don't need additional infra to test you can use #Kafka#Docker and test your application. #DockerCompose is your friend, if you need to learn how it's done, join @DelhiJUG session with @KoTurk77 https://t.co/ooAPPLZxLV
We all know the horror of sending messages between applications and all outages because of this 😡 lets learn how to deal with these nightmares, join us here @DelhiJUG