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I forgot the password I entered during postgres installation
...s to keep around
cp pg_hba.conf-backup pg_hba.conf
restart the server, in order to run with the safe pg_hba.conf
sudo /etc/init.d/postgresql restart
Further Reading about that pg_hba file: http://www.postgresql.org/docs/9.1/static/auth-pg-hba-conf.html
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Debugging doesn't start [closed]
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Just in case: I had to restart VS in order to make this trick work, so keep in mind
– ZuoLi
Apr 24 '15 at 14:18
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What is the purpose of the “role” attribute in HTML?
... also see it as being useful for embedded browsers and screen scrapers. In order to be useful to the unusual HTML client, the attribute needs to be set to one of the roles from the spec I linked. If you make up your own, this 'future' functionality can't work - a comment would be better.
Practical...
Why doesn't the height of a container element increase if it contains floated elements?
...k -->
<div style="clear: both;"></div>
<!-- Now in order to prevent the next div from floating beside the top ones,
we use `clear: both;`. This is like a wall, so now none of the div's
will be floated after this point. The container height will now also includ...
Saving changes after table edit in SQL Server Management Studio
... happens because sometimes it is necessary to drop and recreate a table in order to change something. This can take a while, since all data must be copied to a temp table and then re-inserted in the new table. Since SQL Server by default doesn't trust you, you need to say "OK, I know what I'm doing,...
Add new row to dataframe, at specific row-index, not appended?
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existingDF <- rbind(existingDF,newrow)
existingDF <- existingDF[order(c(1:(nrow(existingDF)-1),r-0.5)),]
row.names(existingDF) <- 1:nrow(existingDF)
return(existingDF)
}
insertRow2(existingDF,newrow,r)
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2 2 7 12 17
3 1 2 3 4
4 3 8 13 18
5 4 ...
How to disallow temporaries
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@Mikhail the order of destruction of temporary objects that are destroyed at the same points is the reverse order of their construction. The default argument that the caller passes is a temporary. If the Foo object is a temporary too, and...
Convert Set to List without creating new List
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It is easy to see that if you want to have a Map with Lists as values, in order to have k different values, you need to create k different lists.
Thus: You cannot avoid creating these lists at all, the lists will have to be created.
Possible work around:
Declare your Map as a Map<String,Set>...
How do I compare two strings in Perl?
...between its arguments. ...
lt, le, ge, gt and cmp use the collation (sort) order specified by the current locale if a legacy use locale (but not use locale ':not_characters') is in effect. See perllocale. Do not mix these with Unicode, only with legacy binary encodings. The standard Unicode::Collate...
Binding a list in @RequestParam
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there may be problems with the order (which is very important to keep in my case) because I send the parameters by serializing a form and sending i with ajax. I'll use the "traditional" @ModelAttribute way.
– Javi
Jan...