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Select values from XML field in SQL Server 2008
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159
Given that the XML field is named 'xmlField'...
SELECT
[xmlField].value('(/person//firstName...
Installing older version of R package
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155
To install an older version of a package from source (within R):
packageurl <- "http://cra...
Updating MySQL primary key
...update the primary key.
alter table xx drop primary key, add primary key(k1, k2, k3);
To fix things:
create table fixit (user_2, user_1, type, timestamp, n, primary key( user_2, user_1, type) );
lock table fixit write, user_interactions u write, user_interactions write;
insert into fixit
selec...
How do I set a variable to the output of a command in Bash?
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14 Answers
14
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Eclipse, regular expression search and replace
...'th capture group.
So:
search: (\w+\.someMethod\(\))
replace: ((TypeName)$1)
Hint: CTRL + Space in the textboxes gives you all kinds of suggestions for regular expression writing.
share
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improve ...
Unix command-line JSON parser? [closed]
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10 Answers
10
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warning: [options] bootstrap class path not set in conjunction with -source 1.5
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102
From a blog post:
To use javac from JDK N to cross-compiler to an older platform version, ...
Wget output document and headers to STDOUT
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169
Try the following, no extra headers
wget -qO- www.google.com
Note the trailing -. This is p...
How can I combine hashes in Perl?
What is the best way to combine both hashes into %hash1? I always know that %hash2 and %hash1 always have unique keys. I would also prefer a single line of code if possible.
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XPath: select text node
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187
Having the following XML:
<node>Text1<subnode/>text2</node>
How d...