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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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Java and SQLite [closed]
...zentus)
Another Java - SWIG wrapper. It only works on Win32. http://rodolfo_3.tripod.com/index.html
sqlite-java-shell: 100% pure Java port of the sqlite3 commandline shell built with NestedVM. (This is not a JDBC driver).
SQLite JDBC Driver for Mysaifu JVM: SQLite JDBC Driver for Mysaifu JVM and SQL...
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.
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micro:bit 微控制器教程 · App Inventor 2 中文网
...按钮也算进去，您可以在事件中加入 component 不等于 Button_Disconnect 就可以了。
micro:bit 端设置
MakeCode 编程
请到 makecode 网站，开启一个新的 micro:bit 项目并完成以下程式。
步骤1：初...
Detect if a page has a vertical scrollbar?
... container with an aspect ratio on width/height)
– am_
Jun 12 '14 at 12:26
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Flask vs webapp2 for Google App Engine
... tutorial here -> https://console.developers.google.com/start/appengine?_ga=1.36257892.596387946.1427891855
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What is this Javascript “require”?
...Javascript find it?
The npm cli puts all the downloaded modules in a node_modules directory where you ran npm install. Node.js has very detailed documentation on how modules find other modules which includes finding a node_modules directory.
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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...