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How can prepared statements protect from SQL injection attacks?
...very SQL injection example shows it (all examples in PHP/Mysql):
$expected_data = 1;
$query = "SELECT * FROM users where id=$expected_data";
will produce a regular query
SELECT * FROM users where id=1
while this code
$spoiled_data = "1; DROP TABLE users;"
$query = "SELECT * FROM users...
Inserting data into a temporary table
...SERT INTO #TempTable (ID, Date, Name)
SELECT id, date, name
FROM physical_table
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Why is char[] preferred over String for passwords?
...s: System.out.println("Password".toCharArray());
– GC_
Aug 22 '16 at 13:23
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unsigned int vs. size_t
I notice that modern C and C++ code seems to use size_t instead of int / unsigned int pretty much everywhere - from parameters for C string functions to the STL. I am curious as to the reason for this and the benefits it brings.
...
Detect if a page has a vertical scrollbar?
... container with an aspect ratio on width/height)
– am_
Jun 12 '14 at 12:26
1
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What does “Could not find or load main class” mean?
...<arg> is an arbitrary command line argument that gets passed to your application.
1 - There are some other syntaxes which are described near the end of this answer.
The fully qualified name (FQN) for the class is conventionally written as you would in Java source code; e.g.
packagen...
When should we use mutex and when should we use semaphore
...used for one thread to signal another thread to run.
/* Task 1 */
pthread_mutex_lock(mutex_thing);
// Safely use shared resource
pthread_mutex_unlock(mutex_thing);
/* Task 2 */
pthread_mutex_lock(mutex_thing);
// Safely use shared resource
pthread_mutex_unlock(mutex_thing); // unlock mut...
What is difference between Collection.stream().forEach() and Collection.forEach()?
...is implementation specific, (full source code).
I run openjdk version 1.8.0_111 on a fast Linux machine.
I wrote a test that loops 10^6 times over a List using this code with varying sizes for integers (10^0 -> 10^5 entries).
The results are below, the fastest method varies depending on the amoun...
Pacman: how do the eyes find their way back to the monster hole?
...ection for some time. My solution worked well on a en.wikipedia.org/wiki/HP_200LX so how much more constrained could it get?
– Erich Kitzmueller
Dec 9 '11 at 21:20
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Unicode (UTF-8) reading and writing to files in Python
...ve it.
If you actually have a string in this format you can use the string_escape codec to decode it into a normal string:
In [15]: print 'Capit\\xc3\\xa1n\n'.decode('string_escape')
Capitán
The result is a string that is encoded in UTF-8 where the accented character is represented by the two b...