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How to limit UITableView row reordering to a section
I was hitting my head over this one, and google was turning up nothing.
I eventually worked it out and thought I'd write it up here for the sake of the next person.
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Is it a good idea to index datetime field in mysql?
I am working on designing a large database. In my application I will have many rows for example I currently have one table with 4 million records. Most of my queries use datetime clause to select data. Is it a good idea to index datetime fields in mysql database?
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What is the most efficient way to store tags in a database?
I am implementing a tagging system on my website similar to one stackoverflow uses, my question is - what is the most effective way to store tags so that they may be searched and filtered?
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NOW() function in PHP
...re a PHP function that returns the date and time in the same format as the MySQL function NOW() ?
20 Answers
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How do I negate a test with regular expressions in a bash script?
...afely sidestep the intergalactic special character madness of perl, I find myself lost in bash space (placement)! (I feel fear squeezing my gut like a python.) Thanks!
– David Rogers
Dec 28 '10 at 16:37
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How do you discover model attributes in Rails?
...ding it difficult to easily see what attributes/properties exist on all of my model classes since they are not explicitly defined in my class files.
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What is the relationship between the docker host OS and the container base image OS?
...question... but while I have been reading everything docker that I can get my hands on I see that I can install Docker on Ubuntu 12.04 (for example) and then I can install a Fedora container or a different version of ubuntu? (there is an example where the user installed busybox in the container.)
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Android: Create spinner programmatically from array
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// Selection of the spinner
Spinner spinner = (Spinner) findViewById(R.id.myspinner);
// Application of the Array to the Spinner
ArrayAdapter<String> spinnerArrayAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, colors);
spinnerArrayAdapter.setDropDownVie...
ERROR: permission denied for sequence cities_id_seq using Postgres
...s (and at database info systems all in all). I ran following sql script on my database:
4 Answers
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How to set up Spark on Windows?
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Hi, My Build on windows works fine with Cygwin but when I run the command ./start-master.sh in the sbin directory I get the error Error: Could not find or load main class org.apache.spark.launcher.Main full log in /cygdrive/c/Spa...