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How to pass the values from one activity to previous activity
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244
To capture actions performed on one Activity within another requires three steps.
Launch the ...
Show filename and line number in grep output
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answered Nov 12 '11 at 16:36
spokeadokespokeadoke
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Difference between C++03 throw() specifier C++11 noexcept
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129
Exception specifiers were deprecated because exception specifiers are generally a terrible idea...
Determine if variable is defined in Python [duplicate]
...t always obvious because (1) the variable could be conditionally set, and (2) the variable could be conditionally deleted. I'm looking for something like defined() in Perl or isset() in PHP or defined? in Ruby.
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PostgreSQL: How to pass parameters from command line?
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You can use the -v construct e.g
psql -v v1=12 -v v2="'Hello World'" -v v3="'2010-11-12'"
and then refer to the variables in sql as :v1, :v2 etc
select * from table_1 where id = :v1;
Please pay attention on how we pass string/date value using two quotes " '...' "
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UILabel is not auto-shrinking text to fit label size
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Oct 16 '12 at 20:08
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How to select lines between two marker patterns which may occur multiple times with awk/sed
...ssary:
$ awk '/abc/{flag=1;next}/mno/{flag=0}flag' file
def1
ghi1
jkl1
def2
ghi2
jkl2
How does this work?
/abc/ matches lines having this text, as well as /mno/ does.
/abc/{flag=1;next} sets the flag when the text abc is found. Then, it skips the line.
/mno/{flag=0} unsets the flag when the...
How to write a foreach in SQL Server?
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352
You seem to want to use a CURSOR. Though most of the times it's best to use a set based solution...
Curly braces in string in PHP
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288
This is the complex (curly) syntax for string interpolation. From the manual:
Complex (cur...