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Why can't I use an alias in a DELETE statement?
...ble to other tables/views to get a reduced set of rows. E.g. delete o from Order as o inner join Customer as c on c.CustomerID = o.CustomerID where c.ArchiveOrders = 1
– Andrew Jens
Aug 31 '17 at 2:03
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Remove empty strings from a list of strings
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Instead of if x, I would use if X != '' in order to just eliminate empty strings. Like this:
str_list = [x for x in str_list if x != '']
This will preserve None data type within your list. Also, in case your list has integers and 0 is one among them, it will also b...
Objective-C parse hex string to integer
...re lenient. Write thorough unit tests (include spaces, non-hex characters, etc..) as you will find some surprising edge cases that NSScanner gives you more control over.
– Quintin Willison
Mar 30 '17 at 14:15
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PostgreSQL: Drop PostgreSQL database through command line [closed]
...2 reject
and tell pgsql to reload or restart (i.e. either sudo /etc/init.d/postgresql reload or pg_ctl reload) and now the only way to connect to your machine is via local sockets. I'm assuming you're on linux. If not this may need to be tweaked to something other than local / ident on ...
How to set OnClickListener on a RadioButton in Android?
...is to change and update the View accordingly (saves you having 2 or 3 or 4 etc listeners).
RadioGroup radioGroup = (RadioGroup) findViewById(R.id.yourRadioGroup);
radioGroup.setOnCheckedChangeListener(new OnCheckedChangeListener()
{
@Override
public void onCheck...
How to match “anything up until this sequence of characters” in a regular expression?
...( ) capture the expression inside the parentheses for access using $1, $2, etc.
^ match start of line
.* match anything, ? non-greedily (match the minimum number of characters required) - [1]
[1] The reason why this is needed is that otherwise, in the following string:
whatever whatever somethin...
What is the difference between the Facade and Adapter Pattern?
...atible, just when you need to make it more readable, less poorly-designed, etc.
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'uint32_t' identifier not found error
...ample:
typedef __int32 int32_t;
typedef unsigned __int32 uint32_t;
/* ... etc. ... */
Hope this helps!
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'App not Installed' Error on Android
... version of my App1 (note the original App1 was at the top in Alphabetical order which was deleted as above). When clicking on the pale version it said "Not installed for this user". (I had set up my nexus to have more than one user). But in the top right corner there is a three dot button. I presse...
Best way to handle list.index(might-not-exist) in python?
...cked exceptions that Java has which a whole other discussion: mindview.net/Etc/Discussions/CheckedExceptions
– Tendayi Mawushe
Jan 25 '10 at 15:24
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