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Month: September 2010
How To Get The Current Epoch Time (Unix Timestamp)
Perl time PHP time() Ruby Time.now (or Time.new). To display the epoch: Time.now.to_i Python import time first, then int(time.time()) Java long epoch = System.currentTimeMillis()/1000; Microsoft .NET C# epoch = (DateTime.Now.ToUniversalTime().Ticks – 621355968000000000) / 10000000; VBScript/ASP DateDiff(“s”, “01/01/1970 00:00:00”, Now()) Erlang calendar:datetime_to_gregorian_seconds(calendar:now_to_universal_time( now()))-719528*24*3600. OR element(1, now()) * 10000 + element(2, now()). MySQL SELECT unix_timestamp(now()) PostgreSQL SELECT extract(epoch […]
Database Integration – some points to keep in mind
Always Have a Single, Authoritative Source For Your Schema Everyone should know where the official schema resides, and have a frictionless experience in getting a fresh database setup. One should be able to walk up to a computer, get the latest from source control, build, and run a simple tool to setup the database (in […]
Never use a shared database server for development work.
Like many conveniences in software development, a shared database is a tar pit waiting to fossilize a project. Developers overwrite each other’s changes. The changes I make on the server break the code on your development machine. Remote development is slow and difficult. Avoid using a shared database at all costs, as they ultimately waste […]
One Perspective on Improved Software Quality and Reduced Risks
We talk endlessly about improved software quality and reduced risks, but deployable software is the most tangible asset to “outsiders” such as clients or users. The importance of this point cannot be overstated.
Note to Self – Project Management
You can manage scopes of time, cost, and quality much more effectively by basing your decisions on working software with actual feedback and metrics, not just task items on a project schedule.
Perl – system load
To find the system load use the following perl snippet : 1) System load of last one minute : my $system_load = exec(‘uptime | awk -F “load average: ” \'{ print $2 }\’ | cut -d, -f1′); my $system_load = qx(‘uptime | awk -F “load average: ” \'{ print $2 }\’ | cut -d, -f1′); […]