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SQL/mysql - Select distinct/UNIQUE but return all columns?
...each time.
On some platforms (e.g. PostgreSQL, Oracle, T-SQL) this can be done directly using window functions:
select *
from (
select *,
row_number() over (partition by field1 order by field2) as row_number
from table
) as rows
where row_number = 1
On others (MySQL, SQLite), ...
How to break out or exit a method in Java?
...e ...
if (someCondition()) {
return;
}
//... otherwise do the following...
}
From the Java Tutorial that I linked to above:
Any method declared void doesn't return a value. It does not need to contain a return statement, but it may do so. In such a case, a return statement can ...
What's the difference between event.stopPropagation and event.preventDefault?
They seem to be doing the same thing...
Is one modern and one old? Or are they supported by different browsers?
7 Answers...
Check if a string contains a substring in SQL Server 2005, using a stored procedure
... 0 if no match is found
if CHARINDEX('ME',@mainString) > 0
begin
--do something
end
Edit or from daniels answer, if you're wanting to find a word (and not subcomponents of words), your CHARINDEX call would look like:
CHARINDEX(' ME ',' ' + REPLACE(REPLACE(@mainString,',',' '),'.',' ') + '...
How to write logs in text file when using java.util.logging.Logger
...
Could you please suggest me what to do if i want to keep all the logs. Actually from this approach my text file is being replaced if i run my application 2nd time?
– Pankaj
Apr 2 '13 at 9:03
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Difference between JSP EL, JSF EL and Unified EL [closed]
...s inside JSF tags only. The difference with standard JSP EL ${} is that it doesn't only do get, but can also do set. This was mandatory for managed bean auto-creation and setting the values of input components. The standard EL ${} works in JSF output tags as well, but they won't auto-create beans if...
Vim: How to change the highlight color for search hits and quickfix selection
...h hits. The same pattern is used for the selected entry in the quickfix window.
3 Answers
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What is the method for converting radians to degrees?
I run into this occasionally and always forget how to do it.
12 Answers
12
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How to draw a dotted line with css?
How can I draw a dotted line with CSS?
14 Answers
14
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Setting a system environment variable from a Windows batch file?
...set a environment variable at the system level from a command prompt in Windows 7 (or even XP for that matter). I am running from an elevated command prompt.
...