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mongoose vs mongodb (nodejs modules/extensions), which better? and why?
...oose's.
I'm coming from PHP world, there we had raw sql with depreciated mysql_ functions, then we got PDO - object orientated abstraction layer to communicate with sql. Or you can choose some heavy ORM like Doctrine to have similar stuff to mongoose on mongoDB. Objects with setter/getters/save me...
Select first row in each GROUP BY group?
...mon problem can surprisingly be found in the one of most official sources, MySQL manual! See Examples of Common Queries :: The Rows Holding the Group-wise Maximum of a Certain Column.
How to upload files to server using JSP/Servlet?
...and save it in database?
How to convert Part to Blob, so I can store it in MySQL?
Serving uploaded file
Head to the following answers for detail on properly serving the saved file from disk or database back to the client:
Load images from outside of webapps / webcontext / deploy folder using &l...
Simplest PHP example for retrieving user_timeline with Twitter API version 1.1
...imple way of doing it. You write your twitter data to a file, or database (MySQL or MongoDB) on first request, then every subsequent request you check current time against the time limit you want for the file (you could name the file as the time limit), and if the file exists and file name is within...
What is the difference between “INNER JOIN” and “OUTER JOIN”?
...ess of whether or not the other table has a matching value.
Image Source
MySQL 8.0 Reference Manual - Join Syntax
Oracle Join operations
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ServiceStack vs ASP.Net Web API [closed]
... your UserAuth info persisted in OrmLite's supported RDBMS's of SQLServer, MySql, PostgreSQL, Sqlite as well as Redis data-store or InMemory (useful for dev/testing).
Great Documentation
ServiceStack is very well documented where most of the information about the framework is hosted on the GitHub ...
Why does my application spend 24% of its life doing a null check?
... more expensive memory accesses. This is explained in more details in The MySQL “swap insanity” problem and the effects of the NUMA architecture where some solutions are given for Linux (spreading memory accesses on all NUMA nodes, biting the bullet on remote NUMA accesses to avoid swapping). ...
Why do people use Heroku when AWS is present? What distinguishes Heroku from AWS? [closed]
...
Server Side Scripting Environment
Web server
Database Management System(Mysql, Redis etc)
Configure production server
Tool for testing and deployment
Monitoring App
High Availability
Load Blancing/ Http Routing
Service Backup Policies
Team Collaboration
Rebuild Production
If you have small s...
How to get first and last day of previous month (with timestamp) in SQL Server
... in the DATEDIFF() function. I know SQL Server does, but I'm not sure that MySQL does.
– daOnlyBG
May 22 '17 at 15:14
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Hibernate vs JPA vs JDO - pros and cons of each? [closed]
...leus and have it set up so that I can switch easily between using db4o and mysql. It's helpful for rapid development to use db4o and not have to worry too much about the DB schema and then, once the schema is stabilised to deploy to a database. I also feel confident that later on, I could deploy all...