Understanding of CAP Theorem
Learn different aspects of CAP theorem or Brewer’s theorem for choosing databases, history of CAP theorem, basic use case of CAP theorem. CAP: Consistency, Availability, and Partition tolerance in database.
What is ConcurrentModificationException in Java?
Every Java developer encountered ConcurrentModificationException in Java his/her life specially in early development days. How to avoid ConcurrentModificationException, how to overcome this exception either in multi-threaded or single-threaded environment.
How to Delete Index in ElasticSearch?
Learn how to delete index in elasticSearch using. Delete either documents or type or index using browser, cUrl, postman or rest client. delete carefully on production environment.
How to Delete Document in ElasticSearch?
Learn how to Delete Document in ElasticSearch. delete by id, delete by name, delete by matching criteria, etc.
CRUD Operations on Elastic Search Using Rest client
Learn CRUD Operations on Elastic Search Using Rest client. CRUD (create index, read/get content from index, Update index, and delete indexed data) operations using Rest client. You can do this via fiddler or Google’s Advance Rest Client plugin embedded in side the Crome browser.
Install ElasticSearch on Windows
Step-by-Step process to install elasticSearch on Windows. Learn how to install elastic search on window in simple steps.
Date Range Query on ObjectId in MongoDB
How to write a date range query on ObjectId in MongoDB or date range query on _id in MongoDB? You can query on ObjectId or _id of MongoDB either greater than ($gt) or less than date ($lt).
How to Write Your Custom Exception in Java
Learn example of how to write your Custom Exception in Java. Best practice of custom exception Java example with working java program.
Insert Select Update Delete data in Cassandra using cqlsh
CRUD operations using cqlsh in Apache Cassandra. How to perform CRUD (Create, Read, Update and Delete ) Operation in Cassandra using cqlsh.
Table in Apache Cassandra
Learn Apache Cassandra table, create table in Cassandra, describe table in cassandra, create table with ID, alter table in cassandra. drop table in cassandra.