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Default string initialization: NULL or Empty? [closed]
... strings to NULL, with the thinking that NULL means the absence of a value and "" or String.Empty is a valid value. I have seen more examples lately of code where String.Empty is considered the default value or represents no value. This strikes me as odd, with the newly added nullable types in c# ...
Twitter image encoding challenge [closed]
...n -- kind of a large number with a radix that varies by position.
Then it converts that into a base of whatever the size of the character set available is. By default, it makes full use of the assigned unicode character set, minus the less than, greater than, ampersand, control, combining, and sur...
How to find largest objects in a SQL Server database?
...est objects in a SQL Server database? First, by determining which tables (and related indices) are the largest and then determining which rows in a particular table are largest (we're storing binary data in BLOBs)?
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How to do a batch insert in MySQL
...e. What is the best way to do this in a query? Should I just make a loop and insert one record per iteration? Or is there a better way?
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Check for column name in a SqlDataReader object
...ns for control logic like in some other answers is considered bad practice and has performance costs. It also sends false positives to the profiler of # exceptions thrown and god help anyone setting their debugger to break on exceptions thrown.
GetSchemaTable() is also another suggestion in many an...
InputStream from a URL
...").openStream();
// ...
See also:
Using java.net.URLConnection to fire and handle HTTP requests
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log4net argument to LogManager.GetLogger
...the reason. I do it that way so I don't have to worry about the class name and can just copy and paste boiler plate code in a new class.
For the official answer, see: How do I get the fully-qualified name of a class in a static block? at the log4net faq
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Java JUnit: The method X is ambiguous for type Y
I had some tests working fine. Then, I moved it to a different package, and am now getting errors. Here is the code:
3 Answ...
gdb: how to print the current line or find the current line number?
list commands prints a set of lines, but I need one single line, where I am and where an error has probably occurred.
5 An...
What does `kill -0 $pid` in a shell script do?
... 0 to a given PID just checks if any process with the given PID is running and you have the permission to send a signal to it.
For more information see the following manpages:
kill(1)
$ man 1 kill
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If sig is 0, then no signal is sent, but error checking is still performed.
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kill(2)
$ man...