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Oracle Differences between NVL and Coalesce
...answered Jun 5 '09 at 5:13
Gary MyersGary Myers
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Django - Circular model import issue
...much appreciate it. I have two applications, Accounts and Theme... here is my settings list:
4 Answers
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Check if string matches pattern
...ems like it's not possible with match, is it? For that, re.search(pattern, my_string) works though.
– conradkleinespel
Nov 11 '16 at 15:52
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How do you build a Singleton in Dart?
...e of not using a private constructor. So far, I don't find any problems in my way. The second and third ways are not blocking the call to default constructor anyway.
– sgon00
Mar 26 '19 at 9:45
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When do I use the PHP constant “PHP_EOL”?
... does not guarantee you that the other system uses the same delimiter. See my answer below.
– StanE
Aug 23 '15 at 11:43
1
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Insert Update trigger how to determine if insert or update
... times when the Update/Insert Trigger is Called and INSERTED is empty. In my answer I explain how this could be caused by the Predicate eliminating any data from changing. In this event, the Trigger is still called for the DML attempt, but the DELETED and INSERTED tables are empty. This is becaus...
Cleanest way to write retry logic?
...nally I have a need to retry an operation several times before giving up. My code is like:
29 Answers
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Most concise way to convert a Set to a List
...and are zero based which is why this is so strange to me. After converting my set to a list I can't perform any iterative operation on it foreach, sort, etc. I get a NullPointerException, however when I expect my list none of the elements are null, and the only weird I notice is that the index start...
How to manually set an authenticated user in Spring Security / SpringMVC
... This causes the new session ID (and hence the Security context containing my manually logged on user) to be lost when the next request contains the previous session ID.
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JavaScript module pattern with example [closed]
...ttern avoiding naming conflict.
var scope = "I am global";
function whatismyscope() {
var scope = "I am just a local";
function func() {return scope;}
return func;
}
whatismyscope()()
Now we will apply these three concepts I mentioned above to define our first modular design pattern:
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