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How to break lines at a specific character in Notepad++?
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If the text contains \r\n that need to be converted into new lines use the 'Extended' or 'Regular expression' modes and escape the backslash character in 'Find what':
Find what: \\r\\n
Replace with: \r\n
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How to implement one-to-one, one-to-many and many-to-many relationships while designing tables?
... # "link back" if you need
You must also put a unique constraint on the foreign key column (addess.student_id) to prevent multiple rows in the child table (address) from relating to the same row in the referenced table (student).
One-to-many: Use a foreign key on the many side of the ...
Should I use string.isEmpty() or “”.equals(string)?
...always wondering why others use this so often, but didn't take null values into account. Great :-)
– Peter Wippermann
Dec 2 '10 at 10:51
10
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What is the exact problem with multiple inheritance?
...people asking all the time whether multiple inheritance should be included into the next version of C# or Java. C++ folks, who are fortunate enough to have this ability, say that this is like giving someone a rope to eventually hang themselves.
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Warning message: In `…` : invalid factor level, NA generated
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@David Why does R convert it into Factor?
– KannarKK
Aug 2 '15 at 10:00
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ORDER BY the IN value list
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You can do it quite easily with (introduced in PostgreSQL 8.2) VALUES (), ().
Syntax will be like this:
select c.*
from comments c
join (
values
(1,1),
(3,2),
(2,3),
(4,4)
) as x (id, ordering) on c.id = x.id
order by x.ordering
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What is a “static” function in C?
...+ methods are often referred to as "member functions", so I agree that C++ introduces a little bit of ambiguity. It's not your fault — the language just uses the keyword for two different things.
– Chuck
Feb 17 '09 at 18:40
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What's “P=NP?”, and why is it such a famous question? [closed]
...s harder (O(e^n)).
But CS speak tells that the problem is that we cannot 'convert' a non-deterministic Turing-machine to a deterministic one, we can, however, transform non-deterministic finite automatons (like the regex parser) into deterministic ones (well, you can, but the run-time of the machin...
How to get the filename without the extension in Java?
...brary solution above. It works, but looking at the code (without having to interpret the REGEX) isn't obvious what it does.
– Gustavo Litovsky
Nov 28 '12 at 21:12
5
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How to get parameters from the URL with JSP
...tlet:
<%
if (request.getParameter("name") == null) {
out.println("Please enter your name.");
} else {
out.println("Hello <b>"+request. getParameter("name")+"</b>!");
}
%>
share...