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Use tnsnames.ora in Oracle SQL Developer
... $TNS_ADMIN/tnsnames.ora
TNS_ADMIN lookup key in the registry
/etc/tnsnames.ora ( non-windows )
$ORACLE_HOME/network/admin/tnsnames.ora
LocalMachine\SOFTWARE\ORACLE\ORACLE_HOME_KEY
LocalMachine\SOFTWARE\ORACLE\ORACLE_HOME
If your tnsnames.ora file is not getting ...
What is your most productive shortcut with Vim?
... want and perform any type of operation such as yank, delete, paste, edit, etc. It's great to edit column oriented text.
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edited Feb 8 '17 at 14:14
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Class method differences in Python: bound, unbound and static
...
where
self is the CPO (it could be an instance of list, str, function etc) and is supplied by the runtime
instance is the instance of the class where this CPO is defined (the object 'c' above) and needs to be explicity supplied by us
owner is the class where this CPO is defined(the class object...
JavaScript unit test tools for TDD
...pport
javascript # API for running tests
proper exit status for CI support etc
auto-detects and disables coloring for non-ttys
maps uncaught exceptions to the correct test case
async test timeout support
test-specific timeouts
growl notification support
reports test durations
highlights slow tests
f...
How to call an external command?
...can get the stdout, stderr, the "real" status code, better error handling, etc...).
The official documentation recommends the subprocess module over the alternative os.system():
The subprocess module provides more powerful facilities for spawning new processes and retrieving their results; usin...
Reason for Column is invalid in the select list because it is not contained in either an aggregate f
...f the grouping criteria, nor appear in aggregate functions (SUM, MIN, MAX, etc.).
Fixing it might look like this:
SELECT a, MAX(b) AS x
FROM T
GROUP BY a
Now it's clear that you want the following result:
a x
--------
1 ghi
2 pqr
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Detecting design mode from a Control's constructor
... can also do it by checking process name:
if (System.Diagnostics.Process.GetCurrentProcess().ProcessName == "devenv")
return true;
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Android multiple email attachments using Intent
... Android program to send email with an attachment (image file, audio file, etc) using Intent with ACTION_SEND . The program is working when email has a single attachment. I used Intent.putExtra(android.content.Intent.EXTRA_STREAM, uri) to attach the designated image file to the mail and it is wor...
Git mergetool generates unwanted .orig files
...hough, if you like it you will probably absolutely love tools like p4Merge etc.
– Tim Jarvis
Jun 17 at 3:57
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How to show the text on a ImageButton?
... place the drawable at the top of the button, drawableRight at the bottom, etc.
– Cristian
Oct 25 '12 at 12:11
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