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Closing Database Connections in Java
...u are done with using your Connection, you need to explicitly close it by calling its close() method in order to release any other database resources (cursors, handles, etc) the connection may be holding on to.
Actually, the safe pattern in Java is to close your ResultSet, Statement, and Connectio...
Update a record without first querying?
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@Gabriel Won't this update all properties though? What if I only want to modify a single one?
– David Pfeffer
Aug 15 '12 at 0:45
22
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Clear Application's Data Programmatically
I want to clear my application's data programmatically.
6 Answers
6
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JOIN two SELECT statement results
...COUNT(*) AS '# Late' FROM Table WHERE Age > Palt GROUP BY ks
Or UNION ALL if you want duplicates:
SELECT ks, COUNT(*) AS '# Tasks' FROM Table GROUP BY ks
UNION ALL
SELECT ks, COUNT(*) AS '# Late' FROM Table WHERE Age > Palt GROUP BY ks
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Install gitk on Mac
Does anyone know how to install gitk on Mac?
13 Answers
13
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MySQL order by before group by
...rect author and post is returned every time.
As a side note, while MySQL allows you to use an ORDER BY in a subquery and allows you to apply a GROUP BY to not every column in the SELECT list this behavior is not allowed in other databases including SQL Server.
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Creating multiline strings in JavaScript
... @Nate It is specified in ECMA-262 5th Edition section 7.8.4 and called LineContinuation : "A line terminator character cannot appear in a string literal, except as part of a LineContinuation to produce the empty character sequence. The correct way to cause a line terminator character to be...
C# how to create a Guid value?
...uid();
Hey, its a 'valid', although not very useful, Guid.
(the guid is all zeros, if you don't know. Sometimes this is needed to indicate no guid, in cases where you don't want to use a nullable Guid)
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Mac SQLite editor [closed]
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Unless I'm missing something, it doesn't allow you to alter existing tables.
– mahdaeng
Dec 12 '11 at 20:54
1
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Visual Studio appears to randomly adopt American keyboard layout
Gah! This is really causing me hassle today. Suddenly without warning '@' (at symbol) and '"' (double quote) are trading places on my keyboard but ONLY in Visual Studio 2008!
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