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SQL query return data from multiple tables
...we need and use a join that correctly identifies what columns to join on.
ERROR 1052 (23000): Column 'ID' in field list is ambiguous
Oh noes! An error in our first query! Yes, and it is a plum. You see, the query has indeed got the right columns, but some of them exist in both tables, so the data...
Downloading a large file using curl
...ing is ok with:
if (!$result)
throw new Exception('Download error...');
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How often does python flush to a file?
..._init__.py file before any other code, messages printed with print and any errors will no longer be logged to Ableton's Log.txt but to separate files on your disk:
import sys
path = "/Users/#username#"
errorLog = open(path + "/stderr.txt", "w", 1)
errorLog.write("---Starting Error Log---\n")
sys....
What are the differences between the different saving methods in Hibernate?
...
there are many errors here... e.g. 1) ´save()´ doesn't return an "attached object", it returns the ´id´; 2) ´persist()´ isn't guaranteed to set the ´id´, neither it "persists object to DB"; ...
– Eugen Labun
...
App Inventor 2 扩展 · App Inventor 2 中文网
...er importing an extension, make sure to restart the companion app, else an error may occur.
Figure 3: An imported extension shown in components palette
2.2 Some sample extensions to try
Here are some sample extension components to experiment with. You can find these in the MIT App Inventor E...
Servlet for serving static content
... }
catch (IllegalArgumentException e) {
response.sendError(HttpServletResponse.SC_BAD_REQUEST);
return;
}
if (resource == null) {
response.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
String fileNam...
Integrate ZXing in Android Studio
... When trying run my app using ContinuousCapture in Fragment: Error:Execution failed for task ':app:transformClassesWithDexForDebug'. > com.android.build.transform.api.TransformException: com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Proc...
How to pretty-print a numpy.array without scientific notation and with given precision?
...) and len(arg) == 0):
tf[ 2*j + 1 ] = "%s" # %f -> %s, not error
continue
args[j], isarray = _tonumpyarray(arg)
if isarray and fmt[-1] in "defgEFG":
tf[ 2*j + 1 ] = "%s"
fmtfunc = (lambda x: fmt % x)
formatter = dict( f...
How to send data to local clipboard from a remote SSH session
... use old unicode
-version version information
-silent errors only, run in background (default)
-quiet run in foreground, show what's happening
-verbose running commentary
Report bugs to <astrand@lysator.liu.se>
$ xsel -help
Usage: xsel [options]
M...
What's the difference between hard and soft floating point numbers?
...patible.
hard - the ABI uses float or VFP registers.
The linker (loader) error is because you have a shared library that will pass floating point values in integer registers. You can still compile your code with a -mfpu=vfp, etc but you should use -mfloat-abi=softfp so that if the libc needs a fl...