...ou might want to add ordering statements to the [Unit] section, e.g. After=mysql.service, Before=apache2.service. – rustyx Jan 25 at 9:41  |  ...

...his 5-day long automated test and stored the generated unique strings in a MySQL database. During this test period, I used 5 different lengths (5, 10, 15, 20, 50) and +/-0.5 million records were inserted for each length. During my test, only the length 5 generated +/-3K duplicates out of 0.5 million...

... Good answer. You can have both NoSQL+ACID and non-ACID-RDBMS (think MySQL + MyISAM). I'd usually consider NoSQL as "eventually consistent". I'll throw in the CAP theorem too... :-) – gbn Feb 27 '12 at 9:48 ...

...ctually done by software developed in C. e.g. Apache, Thin, Nginx, SQLite, MySQL, PostgreSQL, many parsing libraries, RMagick, TCP/IP, etc are C programs used by Ruby. Ruby provides the glue and the business logic. What are your options as a Ruby programmer if you want to deal with this "sl...

... Postgres. It does not offer an in-process/in-memory engine like HSQLDB or MySQL. If you want to create a self-contained environment you can put the Postgres binaries into SVN (but it's more than just a single executable). You will need to run initdb to setup your test database before you can do ...

...ave added their own (nonstandard) extras there. That is, SQL written for a MySQL DB might not work quite similarly with, say, an Oracle DB — even if it "should". I agree, though, that SQL is way better than most of the abstraction layers out there. It's not SQL's fault that it's being used for th...

...iterables, something like a cursor which moves on a resource. If you know mysql cursor or mongodb cursor, you may be aware of that the whole actual data never gets loaded into the memory at once, but one at a time. Your cursor moves back and forth, but there is always a one row/list element in memo...

... @Christian: Indeed, that's what the authors of High Performance MySQL recommend too. – Alix Axel Dec 19 '11 at 7:39 1 ...

...in select or DML, since it is Oracle, which offers lightyears of more than MySQL or similar simple database engines. PL/SQL allows you to hide the storage model from your application domain model in an effective way. The trick here is: we need a call which accepts the long string, and store somewh...

...ystems created by various vendors such as Microsoft's SQL Server, Oracle's MySQL etc. ) don't even bother supporting this, it is just bad practice (or purposely chose not to implement it). Imagine that a developer comes and changes the name of the second column in Product from Price to Cost. Then al...