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How to change the foreign key referential action? (behavior)
...tep process:
Suppose, a table1 has a foreign key with column name fk_table2_id, with constraint name fk_name and table2 is referred table with key t2 (something like below in my diagram).
table1 [ fk_table2_id ] --> table2 [t2]
First step, DROP old CONSTRAINT: (reference)
ALTER ...
How to get Url Hash (#) from server side
...xample.com/yourDirectory/index.php:
function redirect()
{
if (!empty($_GET['hash'])) {
/** Sanitize & Validate $_GET['hash']
If valid return string
If invalid: return empty or false
******************************************************/
...
Spring .properties file: get element as an Array
... this is what I want, but in env vars... I should be able to use SOME_KEY_0_=yes SOME_KEY_1=no, etc in env vars, but my getProperty is coming back null
– Rhubarb
Apr 30 at 20:56
...
What is the difference between re.search and re.match?
...
Now, enough talk. Time to see some example code:
# example code:
string_with_newlines = """something
someotherthing"""
import re
print re.match('some', string_with_newlines) # matches
print re.match('someother',
string_with_newlines) # won't match
print re.match('^someother', s...
How to update Python?
...stalled and their versions. Some were installed by PortablePython. Use easy_install pip to install pip if it wasn't installed.
If OP has 2.7.x and wants to install a different version, e.g. <=2.6.x or >=3.x.x, then installing different versions side-by-side is fine. You must choose which vers...
How do I trap ctrl-c (SIGINT) in a C# console app
...complete solution below. works with kill as well
– JJ_Coder4Hire
Apr 10 '14 at 18:53
1
I have fou...
Make a Bash alias that takes a parameter?
... and a function are not equivalent... echo -e '#!/bin/bash\nshopt -s expand_aliases\nalias asrc='\''echo "${BASH_SOURCE[0]}"'\'' # note the '\''s\nfunction fsrc(){ echo "${BASH_SOURCE[0]}";}'>>file2&&echo -e '#!/bin/bash\n. file2\nalias rl='\''readlink -f'\''\nrl $(asrc)\nrl $(fsrc)'&g...
Programmatically Determine a Duration of a Locked Workstation?
...SessionSwitch += new Microsoft.Win32.SessionSwitchEventHandler(SystemEvents_SessionSwitch);
void SystemEvents_SessionSwitch(object sender, Microsoft.Win32.SessionSwitchEventArgs e)
{
if (e.Reason == SessionSwitchReason.SessionLock)
{
//I left my desk
}
else if (e.Reason == ...
Concatenate two slices in Go
...ough options for the task.
la := len(a)
c := make([]int, la, la + len(b))
_ = copy(c, a)
c = append(c, b...)
la := len(a)
c := make([]int, la + len(b))
_ = copy(c, a)
_ = copy(c[la:], b)
share
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...
How to append text to an existing file in Java?
...catch(IOException ex){ ex.printStackTrace(); }
– php_coder_3809625
Aug 18 '16 at 12:12
...