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Splitting string into multiple rows in Oracle
...,]+', 1, levels.column_value)) as error
from
temp t,
table(cast(multiset(select level from dual connect by level <= length (regexp_replace(t.error, '[^,]+')) + 1) as sys.OdciNumberList)) levels
order by name
EDIT:
Here is a simple (as in, "not in depth") explanation of the query.
leng...
Convert JSON String to Pretty Print JSON output using Jackson
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Fastest way to get the first object from a queryset in django?
Often I find myself wanting to get the first object from a queryset in Django, or return None if there aren't any. There are lots of ways to do this which all work. But I'm wondering which is the most performant.
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Checking if object is empty, works with ng-show but not from controller?
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Hi thanks for the reply, but I need to set properties on the object before I have actually received info from $http. if its null then I couldn't do items.available = true could I ? I was under the impression that i had to create an object
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bs4.FeatureNotFound: Couldn't find a tree builder with the features you requested: lxml. Do you need
The above outputs on my Terminal. I am on Mac OS 10.7.x. I have Python 2.7.1, and followed this tutorial to get Beautiful Soup and lxml, which both installed successfully and work with a separate test file located here . In the Python script that causes this error, I have included this line:
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What does the clearfix class do in css? [duplicate]
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Before the invention of display:inline-block, websites use float to set elements beside each other. float is preferred over display:inline since with the latter, you can't set the element's dimensions (width and height) as well as vertical paddings (top and bottom) - which floated elements ca...
How do I remove a substring from the end of a string in Python?
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strip doesn't mean "remove this substring". x.strip(y) treats y as a set of characters and strips any characters in that set from the ends of x.
Instead, you could use endswith and slicing:
url = 'abcdc.com'
if url.endswith('.com'):
url = url[:-4]
Or using regular expressions:
import ...
HTML5 Local storage vs. Session storage
...cessing their account at a later time). But if you wanted to save a user's settings on their machine you would probably want localStorage. All in all:
localStorage - use for long term use.
sessionStorage - use when you need to store somthing that changes or somthing temporary
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Why is the time complexity of both DFS and BFS O( V + E )
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DFS(analysis):
Setting/getting a vertex/edge label takes O(1) time
Each vertex is labeled twice
once as UNEXPLORED
once as VISITED
Each edge is labeled twice
once as UNEXPLORED
once as DISCOVERY or BACK
Method incidentEdges is called on...
View a list of recent documents in Vim
Is there a way to view the list of recent documents you've opened in Vim? I realize I could view the cursor jump list, :ju , and then go to a cursor position in the list but this is not ideal because there will be multiple listings of the same document in the list. Is there another command which wo...