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How to pull a random record using Django's ORM?
...doms.all()[0]
Lastly, you can have many managers on your models, so feel free to create a LeastViewsManager() or MostPopularManager().
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mysql - how many columns is too many?
...ects for convenience at the sake of performance. So should every piece of information about a person be stored within the same row? no, break them out and group them into different tables (using my example form my previous comment): "Person", "Activities" "HealthRecords". Storing a SUM for performa...
Why are private fields private to the type, not the instance?
...generation wasn't necessary harder or easier for these languages. For more info, see also my answer down the thread.
– Abel
Aug 11 '11 at 15:01
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Benchmarking small code samples in C#, can this implementation be improved?
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Here is the modified function: as recommended by the community, feel free to amend this its a community wiki.
static double Profile(string description, int iterations, Action func) {
//Run at highest priority to minimize fluctuations caused by other processes/threads
Process.GetCurre...
How to generate the “create table” sql statement for an existing table in postgreSQL
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pg_dump -t 'schema-name.table-name' --schema-only database-name
More info - in the manual.
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MYSQL OR vs IN performance
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Performance reason (quoting MariaDB(a MySQL new free branch) docs): Returns 1 if expr is equal to any of the values in the IN list, else returns 0. If all values are constants, they are evaluated according to the type of expr and sorted. The search for the item then is don...
How to get function parameter names/values dynamically?
...amp; filter [""]
}
// test cases
document.getElementById('console_info').innerHTML = (
[
// formatting -- typical
function(a,b,c){},
function(){},
function named(a, b, c) {
/* multiline body */
},
// default values -- conventional
function(a /* ...
How to get the last value of an ArrayList
...probably at least demonstrate assigning it... ArrayList.get is side-affect free.
– Antony Stubbs
Dec 28 '12 at 16:17
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Cannot insert explicit value for identity column in table 'table' when IDENTITY_INSERT is set to OFF
...by itself up on insert. In that case the table will keep track of the next free number, and you do not need to generate the OperationID by yourself. The new id can be fetched by SELECT SCOPE_IDENTITY().
– Hakan Winther
Aug 26 '09 at 13:29
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Chrome says “Resource interpreted as script but transferred with MIME type text/plain.”, what gives?
...plication servers such as Weblogic
1) Make sure your weblogic.xml file is free of errors
like this one:
<?xml version = '1.0' encoding = 'windows-1252'?>
<weblogic-web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.bea.com/n...