Difference between INNER JOIN and OUTER JOIN

An inner join of A and B gives the result of A intersect B, i.e. the inner part of a

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NoSQL: What is NoSQL-An introduction

A NoSQL (often interpreted as Not Only SQL) database provides a mechanism for storage and retrieval of data that is

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MongoDB : introduction to MongoDB

MongoDB is an  is a cross-platform open-source document database, and the leading NoSQL database. Written in C, C++ and Java script . MongoDB features:

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MySQL Master-Master-Slave-Slave Replication

Here we are going to create a Master -> Master -> Slave -> Slave replications architecture. I am expecting here , you

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