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Oracle Differences between NVL and Coalesce
... union
select null as a from dual
) ;
succeeds.
More information : http://www.plsqlinformation.com/2016/04/difference-between-nvl-and-coalesce-in-oracle.html
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psycopg2: insert multiple rows with one query
...'.join(['%s'] * len(data))
insert_query = 'insert into t (a, b) values {}'.format(records_list_template)
cursor.execute(insert_query, data)
Explanation: If the data to be inserted is given as a list of tuples like in
data = [(1,'x'), (2,'y')]
then it is already in the exact required format as
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When do I use the PHP constant “PHP_EOL”?
...s, PHP_EOL is ostensibly used to find the newline character in a cross-platform-compatible way, so it handles DOS/Unix issues.
Note that PHP_EOL represents the endline character for the current system. For instance, it will not find a Windows endline when executed on a unix-like system.
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How to complete a git clone for a big project on an unstable connection?
...
Thanks for the information, so my problem is known and a solution is worked on... What would you recommend as a work-around?
– LaPingvino
Oct 17 '10 at 19:31
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How to manually set an authenticated user in Spring Security / SpringMVC
After a new user submits a 'New account' form, I want to manually log that user in so they don't have to login on the subsequent page.
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Is there a difference between /\s/g and /\s+/g?
...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); });
$window.unbind('scroll', onScroll);
}
};
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How Do I Choose Between a Hash Table and a Trie (Prefix Tree)?
...nd all words beginning with 'a' or 'axe' so on.
A suffix tree is a special form of a tree. Suffix trees have a whole list of advantages that hash cannot cover.
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How to copy commits from one branch to another?
...from one SVN branch to another, I ended up cherry-picking them and then performing an interactive rebase/reword to remove the incorrect git-svn-id references before dcommiting again. Though I probably could have left out the cherry-pick step and just used a rebase by itself.
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Linux: copy and create destination dir if it does not exist
...vocation.html#cp-invocation or with info cp or man cp):
--parents
Form the name of each destination file by appending to the target
directory a slash and the specified name of the source file. The
last argument given to `cp' must be the name of an existing
directory. For ex...
datatrigger on enum to change image
...y">
2 - in the Value property of the DataTrigger, use the {x:Static} form:
<DataTrigger Binding="{Binding Path=LapCounterPingStatus}" Value="{x:Static my:PingStatus.PING_UNKNOWN}">
Notice that the Enum type must be prefixed with the xmlns prefix you defined above.
Edit:
If your Enu...