How can we use MongoDb with postgresql?

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There are ten answers to this question.

Best solution

How can I use MongoDB as a cache for Postgresql?

I have an application that can not afford to lose data, so Postgresql is my choice for database (ACID) However, speed and query advantages of MongoDB are very attractive, but based on what I've read so far, MongoDB can report a successful write which may not have gone to disk, so I can't make it my mission critical db (I'll also need transactions) I've seen references to people using mysql and MongoDB together, one for the transactions and the other for queries. Please not that I'm not talking...

Answer:

One way to achieve this would be to set up a master-slave replication with the PostgreSQL database as...

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sarikan at Stack Overflow Mark as irrelevant Undo

Other solutions

When should I use MongoDB instead of PostgreSQL? (in web projects)

Nowdays, PostgreSQL has many stable extensions including hstore, arrays and JSON types for columns, so one can implement many document-oriented features in PostgreSQL. PostgreSQL is also stable and pretty fast. Some libraries support Postgres, but not...

Answer:

Most of the existing answers here completely miss the point of your question. PostgreSQL now has great...

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Alex North at Quora Mark as irrelevant Undo

Which database should I use for a killer web application: MongoDB, PostgreSQL, or MySQL?

I'm working on killer web application, and I am really interested and worked with MongoDB. Is it a choice to choose MongoDB as a premier database? Or Is it better to use MySQL (with MongoDB/Redis as secondary)?

Answer:

So the question should have been more like 'When is MongoDB a better data retrieval solution than mysql...

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Answer Wiki at Quora Mark as irrelevant Undo

Which database to use if I want to migrate .pst (outlook) into a database?

I want to migrate .pst files (outlook) into a database. I know there are a lot of libraries to do this. Data volumes will be approximately 100GB+. The main purpose to do this is to search old emails and the response should be extremely fast. My question...

Answer:

Microsoft Access can open the PST files and from there you could probably push the data into just about...

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Ben M. Schorr at Quora Mark as irrelevant Undo

Do internet companies such as Facebook or Google use MongoDB despite the AGPL license?

Internet companies don't use AGPL licensed code. MongoDB is AGPL licensed. MongoDB Licensing 10Gen says this shouldn't be a problem since the database drivers are licensed under Apache. But if anyone else writes a custom driver, that would have to be...

Answer:

Google has done their licensing homework and they specifically ban MongoDB. This is an excerpt from...

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Dan Dascalescu at Quora Mark as irrelevant Undo

Answer:

No.  For a couple of reasons... 1) JSON is just text with some formatting rules applied.  Even Postgre...

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Chris Schrader at Quora Mark as irrelevant Undo

Is char(1) really use one byte space in postgresql?

Hello guys:  I am a newbie to PostgreSQL database. I meet a problem when using PostgreSQL database. In the document Documentation: 9.1: Character Types It's said that "char" use single-byte. Here is my test: CREATE TABLE test (text char(1)...

Answer:

From the link you posted (emphasis mine) SQL defines two primary character types: character varying...

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Bo Shi at Quora Mark as irrelevant Undo

How come many startups used MySQL or PostgreSQL rather than MongoDB when they began?

Many of them seem to migrate to MongoDB later - why's that? Does it need a lot more effort in working with MongoDB? Why don't they just jump straight into MongoDB?

Answer:

MongoDB might seem pretty sexy these days, but it does not scale for writes at scale due to a global...

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Siddharth Anand at Quora Mark as irrelevant Undo

Which will be a better to use 1) Mongodb with Redis or 2) Mysql with Memcached?

Many a times question comes like "What is the use of Redis with Mongodb ?" I have seen the answers as if Mongodb is equivalent to Mysql then Redis is equivalent to Memcached. I have a doubt that which one is better to use ? 1) Mongodb with...

Answer:

Edit Got corrected by a friend offline: 1) Practically speaking, Redis IS a good replacement for Memcached...

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Dima Korolev at Quora Mark as irrelevant Undo

What is the use case for REST api/interface provided by MongoDB?

MongoDB provides REST apis: MongoDB Ecosystem What is the use case? I am tempted to use it in the client side, but my application users would become DBusers, which is bad for managing security. I can use it in my application, but the native drivers would...

Answer:

Maybe if you are using a programming language that does not already have a native driver for MongoDB...

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Joe Munoz at Quora Mark as irrelevant Undo

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