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How can I select multiple columns from a subquery (in SQL Server) that should have one record (selec
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130
Here's generally how to select multiple columns from a subquery:
SELECT
A.SalesOrderID,
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MySQL: Can't create table (errno: 150)
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34 Answers
34
Active
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do you have kcachegrind like profiling tools for mac [closed]
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135
I ended up using qcachegrind on OSX. It can be installed via brew
brew install qcachegrind
o...
Using semicolon (;) vs plus (+) with exec in find
...ith an example. Let's say that find turns up these files:
file1
file2
file3
Using -exec with a semicolon (find . -exec ls '{}' \;), will execute
ls file1
ls file2
ls file3
But if you use a plus sign instead (find . -exec ls '{}' \+), as many filenames as possible are passed as arguments to ...
Dropping Unique constraint from MySQL table
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352
A unique constraint is also an index.
First use SHOW INDEX FROM tbl_name to find out the nam...
How to get numbers after decimal point?
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31
Exercise for the reader: make it work for numbers larger than or equal to 10
– intuited
Jan 6 '13 at...
Auto margins don't center image in page
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edited Apr 20 '11 at 17:32
answered Apr 20 '11 at 17:24
R...
How to implement infinity in Java?
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23
I avoid using float whenever possible as its precision is pretty poor. ;)
– Peter Lawrey
Oct 18 '12 a...
htaccess redirect to https://www
...rule will catch it.
RewriteRule .* https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
# Now, rewrite any request to the wrong domain to use www.
# [NC] is a case-insensitive match
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteRule .* https://www.%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
About proxying
When b...
Structure padding and packing
...boundaries - say, int members would have offsets, which are mod(4) == 0 on 32-bit platform. Padding is on by default. It inserts the following "gaps" into your first structure:
struct mystruct_A {
char a;
char gap_0[3]; /* inserted by compiler: for alignment of b */
int b;
char c;
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