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Manipulating an Access database from Java without ODBC
...Connection conn=DriverManager.getConnection(
"jdbc:ucanaccess://C:/__tmp/test/zzz.accdb");
Statement s = conn.createStatement();
ResultSet rs = s.executeQuery("SELECT [LastName] FROM [Clients]");
while (rs.next()) {
System.out.println(rs.getString(1));
}
Disclosure
At the time of ...
Improve INSERT-per-second performance of SQLite
... versions of SQLite - Consider a less paranoid journal mode (pragma journal_mode). There is NORMAL, and then there is OFF, which can significantly increase insert speed if you're not too worried about the database possibly getting corrupted if the OS crashes. If your application crashes the data sho...
What does Connect.js methodOverride do?
...to simulate DELETE and PUT, methodOverride is for that.
If you pass in the _method post parameter set to 'delete' or 'put', then you can use app.delete and app.put in Express instead of using app.post all the time (thus more descriptive, verbose):
Backend:
// the app
app.put('/users/:id', functio...
In an array of objects, fastest way to find the index of an object whose attributes match a search
...y your criteria. For example: function hashf(el) { return String(el.id) + "_" + String(el.name); }. This is just a hint: elementPos = array.map(hashf(x)).indexOf(hash({id:3, name:'Pablo'})); Obviously, the hash function I provide is not valid for all cases since '_' could form part of your values bu...
Setting a system environment variable from a Windows batch file?
...
Simple example for how to set JAVA_HOME with setx.exe in command line:
setx JAVA_HOME "C:\Program Files (x86)\Java\jdk1.7.0_04"
This will set environment variable "JAVA_HOME" for current user. If you want to set a variable for all users, you have to use op...
What is Lazy Loading?
...:
...
@property
def total(self):
if not hasattr(self, "_total"):
self._total = self.quantity \
+ sum(bi.quantity for bi in self.borroweditem_set.all())
return self._total
Basically, I have an Item class which represents an item in our inven...
Getting the closest string match
...f S2$)
Dim wordsS1$(), wordsS2$()
wordsS1 = SplitMultiDelims(S1, " _-")
wordsS2 = SplitMultiDelims(S2, " _-")
Dim word1%, word2%, thisD#, wordbest#
Dim wordsTotal#
For word1 = LBound(wordsS1) To UBound(wordsS1)
wordbest = Len(S2)
For word2 = LBound(wordsS2) To...
PHP array delete by value (not key)
...
Using array_search() and unset, try the following:
if (($key = array_search($del_val, $messages)) !== false) {
unset($messages[$key]);
}
array_search() returns the key of the element it finds, which can be used to remove that ele...
Run a string as a command within a Bash script
...xamples I have used to better understand how eval works. linuxhint.com/bash_eval_command
– student0495
Apr 6 at 11:54
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How to set tint for an image view programmatically in android?
...en
imageView.setColorFilter(ContextCompat.getColor(context, R.color.COLOR_YOUR_COLOR), android.graphics.PorterDuff.Mode.MULTIPLY);
For Vector Drawable
imageView.setColorFilter(ContextCompat.getColor(context, R.color.COLOR_YOUR_COLOR), android.graphics.PorterDuff.Mode.SRC_IN);
UPDATE:
@ADev ha...