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Transaction isolation levels relation with locks on table
...
docs.oracle.com/cd/B12037_01/server.101/b10743/consist.htm Just to add for Oracle : One can set the isolation level of a transaction by using one of these statements at the beginning of a transaction: SET TRANSACTION ISOL...
How do I create a simple 'Hello World' module in Magento?
...s create a new module. Create an XML file in app/modules named as follows
cd /path/to/store/app
touch etc/modules/MyCompanyName_HelloWorld.xml
<?xml version="1.0"?>
<config>
<modules>
<MyCompanyName_HelloWorld>
<active>true</active>
...
Ternary operator is twice as slow as an if-else block?
...terations; x++)
0000007c FF C1 inc ecx
0000007e 3B CD cmp ecx,ebp
00000080 7C C6 jl 0000000000000048
First: why is the X86 code so much slower than X64?
This is due to the following characteristics of the code:
X64 has sev...
What is the Sign Off feature in Git for?
... Trevor King (wking).
(Merged by Junio C Hamano -- gitster -- in commit fb4cd88, 06 Nov 2017)
pull: pass --signoff/--no-signoff to "git merge"
merge can take --signoff, but without pull passing --signoff down, it
is inconvenient to use; allow 'pull' to take the option and pass it
thro...
How can I record a Video in my Android App.?
...e() {
// File dir = new
// File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES),
// this
File dir = new File(Environment.getExternalStorageDirectory(), this
.getClass().getPackage().getName());
if (!dir.exists() && !dir.mkdirs()) ...
ab load testing
...all Xampp.
Step 2 - Open CMD.
Step 3 - Go to the apache bench destination (cd C:\xampp\apache\bin) from CMD
Step 4 - Paste the command (ab -n 100 -c 10 -k -H "Accept-Encoding: gzip, deflate" http://localhost:yourport/)
Step 5 - Wait for it. Your done
...
Relative imports in Python 3
...ls the package in your site-packages directory) (step 2):
vaultah@base:~$ cd project
vaultah@base:~/project$ python3 setup.py install --user
Let's verify that it's now possible to run standalone.py as a script:
vaultah@base:~/project$ python3 -i package/standalone.py
Running /home/vaultah/projec...
Is git's semi-secret empty tree object reliable, and why is there not a symbolic name for it?
...our repo with a first empty commit.
To do that:
git init my_new_repo
cd my_new_repo
git config user.name username
git config user.email email@com
git commit --allow-empty -m "initial empty commit"
That will generate a commit with a SHA1 specific to your repo, username, email, date of creati...
“Keep Me Logged In” - the best approach
...ld be saved securely
$key = 'fc4d57ed55a78de1a7b31e711866ef5a2848442349f52cd470008f6d30d47282';
$key = pack("H*", $key); // They key is used in binary form
// Am Using Memecahe as Sample Database
$db = new Memcache();
$db->addserver("127.0.0.1");
try {
// Start Remember Me
$rememberMe ...
How is the fork/join framework better than a thread pool?
...multiple sub-pieces. So to restate the above:
We have two tasks (ab) and (cd) which take 2 and 11 seconds respectively. Thread 1 starts to execute ab and split it into two sub-tasks a & b. Similarly with thread 2, it splits into two sub-tasks c & d. When thread 1 has finished a & b, it ...