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What does JVM flag CMSClassUnloadingEnabled actually do?
...anymore. This usually is no problem since you don't have that many purely "setup" classes (= used once for setup and then never again). So even if they take up 1MB, who cares.
But lately, we have languages like Groovy, that define classes at runtime. Every time you run a script, one (or more) new c...
How to list active / open connections in Oracle?
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Use the V$SESSION view.
V$SESSION displays session information for each current session.
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What is the MySQL JDBC driver connection string?
...own Windows Service name to connect too.
Construct the url accordingly and set the url to connect.
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How can I remove the decimal part from JavaScript number?
I have the results of a division and I wish to discard the decimal portion of the resultant number.
14 Answers
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Update a table using JOIN in SQL Server?
...n the CommonField and also filter on it afterward. Try this:
UPDATE t1
SET t1.CalculatedColumn = t2.[Calculated Column]
FROM dbo.Table1 AS t1
INNER JOIN dbo.Table2 AS t2
ON t1.CommonField = t2.[Common Field]
WHERE t1.BatchNo = '110';
If you're doing something really silly - like consta...
What is the difference between “instantiated” and “initialized”?
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To initialize something is to set it to its initial value. To instantiate something is to create an instance of it.
Often this is the more or less same thing. This:
SqlConnection conn = new SqlConnection();
instantiates a SqlConnection object, and i...
Remove HTML tags from a String
Is there a good way to remove HTML from a Java string? A simple regex like
33 Answers
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.htaccess rewrite to redirect root URL to subdirectory
...ex page candidate in the dir then it overrides the mod_rewrite, UNLESS you set: DirectoryCheckHandler On
– Gerrit
Apr 10 '18 at 19:47
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Visual Studio, Find and replace, regex
... editor after snippets, if snippets enabled
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Why aren't pointers initialized with NULL by default?
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If the pointer is first set to NULL and then set to whatever value, the compiler should be able to detect this and optimize the first NULL initialization, right?
– Korchkidu
Aug 13 '14 at 6:51
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