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Can you create nested WITH clauses for Common Table Expressions?
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305
While not strictly nested, you can use common table expressions to reuse previous queries in su...
Creating a copy of a database in PostgreSQL [closed]
...TABASE newdb WITH TEMPLATE originaldb OWNER dbuser;
Still, you may get:
ERROR: source database "originaldb" is being accessed by other users
To disconnect all other users from the database, you can use this query:
SELECT pg_terminate_backend(pg_stat_activity.pid) FROM pg_stat_activity
WHERE ...
fatal error: Python.h: No such file or directory
I am trying to build a shared library using a C extension file but first I have to generate the output file using the command below:
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How do you loop through currently loaded assemblies?
...ost that?
– Robert
Mar 11 '15 at 14:05
2
The naive way to make this thread safe is to put a lock ...
Swift - encode URL
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answered Jul 3 '14 at 11:05
zaphzaph
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What is a C++ delegate?
...on pointers.
– J.N.
Mar 6 '12 at 15:05
2
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Are there strongly-typed collections in Objective-C?
...ion of type 'NSString *'
And in Swift code, they will produce a compiler error:
var str: String = arr[0]
var num: Int = arr[0] //Error 'String' is not convertible to 'Int'
Lightweight Generics are intended to be used with NSArray, NSDictionary and NSSet, but you can also add them to your own cl...
Generate table relationship diagram from existing schema (SQL Server) [closed]
Is there a way to produce a diagram showing existing tables and their relationships given a connection to a database?
9 Ans...
Should have subtitle controller already set Mediaplayer error Android
...layer is only used to play audio files and you really want to remove these errors in the logcat, the code bellow set an empty SubtitleController to the MediaPlayer.
It should not be used in production environment and may have some side effects.
static MediaPlayer getMediaPlayer(Context context){
...
Filter dataframe rows if value in column is in a set list of values [duplicate]
...ant the values in 'STK_ID' to end with, e.g.
endstrings = ['01$', '02$', '05$']
We can join these strings with the regex 'or' character | and pass the string to str.contains to filter the DataFrame:
>>> rpt[rpt['STK_ID'].str.contains('|'.join(endstrings)]
... STK_ID ...
... '15590...