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Spring Data: “delete by” is supported?
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Be carefull when you use derived query for batch delete.
It isn't what you expect: DeleteExecution
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Protecting executable from reverse engineering?
...mple anti disassembler and anti-debugger trick. The 8088/6 had a prefetch queue what you did was have an instruction that modified the next instruction or a couple ahead. If single stepping then you executed the modified instruction, if your instruction set simulator did not simulate the hardware ...
IN vs OR in the SQL WHERE Clause
...sults:
SELECT COUNT(*) FROM t_inner WHERE val IN (1000, 2000, 3000, 4000, 5000, 6000, 7000, 8000, 9000);
1 row fetched in 0.0032 (1.2679 seconds)
SELECT COUNT(*) FROM t_inner WHERE val = 1000 OR val = 2000 OR val = 3000 OR val = 4000 OR val = 5000 OR val = 6000 OR val = 7000 OR val = 8000 OR val =...
Capture Video of Android's Screen
Forget screenshots, is it posible to capture a video of the running application in android?
Rooted or non-rooted, I don't care, I want atleast 15fps.
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Is JavaScript guaranteed to be single-threaded?
...s by indirecting all event responses. When an event comes in, drop it in a queue and deal with the queue in order later, in a setInterval function. If you are writing a framework that you intend to be used by complex applications, doing this could be a good move. postMessage will also hopefully soot...
Sorted collection in Java
...omewhat out of order with the other Sorted* interfaces) "java.util.PriorityQueue". It can sort either Comparable<?>s or using a Comparator.
The difference with a List sorted using Collections.sort(...) is that this will maintain a partial order at all times, with O(log(n)) insertion performan...
What's the difference between deque and list STL containers?
...ointers on GPU memory. Nods to the Linux O(1) scheduler (LRU <-> run queue per processor). The unordered_map has constant time access via hash table.
#include <iostream>
#include <list>
#include <unordered_map>
using namespace std;
struct MapEntry {
list<uint64_t&...
In Django, how does one filter a QuerySet with dynamic field lookups?
...I wanted an HTML select list showing registered users. But because we have 5000 registered users, I needed a way to filter that list based on query criteria (such as just people who completed a certain workshop). In order for the survey element to be re-usable, I needed for the person creating the s...
What does default(object); do in C#?
... public class DocumentManager < T >
{
private readonly Queue < T > documentQueue = new Queue < T > ();
public void AddDocument(T doc)
{
lock (this)
{
documentQueue.Enqueue(doc);
}
}
p...
Why do I need Transaction in Hibernate for read-only operations?
...l have to be executed in a separate transaction". The container doesn't do Batch Processing automatically?
– Arash
Oct 13 '19 at 9:58
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