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What should every developer know about databases? [closed]
...istent data associated with just one application. Building a database for MySQL, or Access, or SQL Server has become so routine that databases have become almost a routine part of an ordinary application. Sometimes, that initial limited mission gets pushed upward by mission creep, as the real valu...
What's the difference between a catalog and a schema in a relational database?
...luster > Catalog > Schema > Table. " I wonder what it is like for mysql, and SQL Server?
– Tim
Jan 12 '18 at 19:27
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How do you track record relations in NoSQL?
... not need A and you have less than Peta bytes just leave it, go ahead with MySql or Postgres.
good luck
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Calendar Recurring/Repeating Events - Best Storage Method
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Storing "Simple" Repeating Patterns
For my PHP/MySQL based calendar, I wanted to store repeating/recurring event information as efficiently as possibly. I didn't want to have a large number of rows, and I wanted to easily lookup all events that would take place on a speci...
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 ...