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H2 in-memory database. Table not found
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Please note that the registerDriver() call is unnecessary: First of: a simple Class.forName() does the same for most JDBC drivers and (more importantly) it's completely unnecessary for Java 6 und up, which auto-detects (compatible) JDBC drivers on the classpath.
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“Insert if not exists” statement in SQLite
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If you have a table called memos that has two columns id and text you should be able to do like this:
INSERT INTO memos(id,text)
SELECT 5, 'text to insert'
WHERE NOT EXISTS(SELECT 1 FROM memos WHERE id = 5 AND text = 'text to insert');
If a...
How do I increase modal width in Angular UI Bootstrap?
...pp-modal-window .modal-dialog {
width: 500px;
}
Then in the controller calling the modal window, set the windowClass:
$scope.modalButtonClick = function () {
var modalInstance = $modal.open({
templateUrl: 'App/Views/modalView.html',
controller: 'modalControll...
What is the difference between JOIN and UNION?
...ted when columns from one table match columns from another. This match is called the join condition.
This makes joins really great for looking up values and including them in results. This is usually the result of denormalizing (reversing normalization) and involves using the foreign key in one t...
Template default arguments
...ke a function foo with a single default argument. The expression foo won't call it, but foo() will. The argument syntax must still be there. This is consistent with that.
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Why is it necessary to set the prototype constructor?
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};
// define the Student class
function Student(name) {
Person.call(this, name);
}
// inherit Person
Student.prototype = Object.create(Person.prototype);
Now what happens when we create a new Student and copy it?
var student1 = new Student("trinth");
console.log(student1...
How do I update if exists, insert if not (AKA “upsert” or “merge”) in MySQL?
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Yeah, I believe SQL Server's equivalent is called MERGE. In general, the concept is often referred to as "UPSERT".
– chaos
Aug 2 '09 at 13:40
3
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What is the closest thing Windows has to fork()?
...quite old Cygwin's architecture doc:
5.6. Process Creation
The fork call in Cygwin is particularly interesting
because it does not map well on top of
the Win32 API. This makes it very
difficult to implement correctly.
Currently, the Cygwin fork is a
non-copy-on-write implementation
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How to create a JavaScript callback for knowing when an image is loaded?
...to know when an image has finished loading. Is there a way to do it with a callback?
10 Answers
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Jelly Bean DatePickerDialog — is there a way to cancel?
...int in client code, it addresses the fundamental issue (the listener being called in the framework class), works fine across config changes and it routes the code logic to the default implementation in previous Android versions not plagued by this bug (see class source).
Original answer (kept for h...