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Is there any way to delete local commits in Mercurial?
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247
Enable the "strip" extension and type the following:
hg strip #changeset# --keep
Where #cha...
What are the precise rules for when you can omit parenthesis, dots, braces, = (functions), etc.?
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edited Aug 29 '15 at 16:09
Mifeet
10.4k33 gold badges4646 silver badges8989 bronze badges
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How to convert a string to lower or upper case in Ruby
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1612
Ruby has a few methods for changing the case of strings. To convert to lowercase, use downcase:
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Spring @Transactional - isolation, propagation
...d option.
Example of when a dirty read can occur:
thread 1 thread 2
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write(x) |
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| read(x)
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rollback |
v v
value (x) is now dirty (incorrect)
So a sane default (if such can be cla...
How to set target hosts in Fabric file
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128
I do this by declaring an actual function for each environment. For example:
def test():
e...
Checking if all elements in a list are unique
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answered Mar 11 '11 at 20:47
yanyan
19.1k33 gold badges3232 silver badges4747 bronze badges
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How to find the length of a string in R
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424
See ?nchar. For example:
> nchar("foo")
[1] 3
> set.seed(10)
> strn <- paste(sampl...
How to change owner of PostgreSql database?
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2 Answers
2
Active
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Find the files existing in one directory but not in the other [closed]
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diff -r dir1 dir2 | grep dir1 | awk '{print $4}' > difference1.txt
Explanation:
diff -r dir1 dir2 shows which files are only in dir1 and those only in dir2 and also the changes of the files present in both directories if any.
diff -r ...
How do you use variables in a simple PostgreSQL script?
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132
Complete answer is located in the official PostgreSQL documentation.
You can use new PG9.0 anon...