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PHP + MySQL transactions examples
...(mysql_error());
$query = "INSERT INTO employee (ssn,name,phone) values ('123-45-6789','Matt','1-800-555-1212')";
begin(); // transaction begins
$result = mysql_query($query);
if(!$result){
rollback(); // transaction rolls back
echo "transaction rolled back";
exit;
}else{
commit(...
Length of an integer in Python
...always convert it to string like str(133) and find its length like len(str(123)).
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How to write a switch statement in Ruby
...ith Distinction"
else "Invalid Score"
end
puts result
On around page 123 of The Ruby Programming Language (1st Edition, O'Reilly) on my Kindle, it says the then keyword following the when clauses can be replaced with a newline or semicolon (just like in the if then else syntax). (Ruby 1.8 also...
How can I list all foreign keys referencing a given table in SQL Server?
...
GishuGishu
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...
Why does changing 0.1f to 0 slow down performance by 10x?
...1.5,1.6,1.7,1.8,1.9,2.0,2.1,2.2,2.3,2.4,2.5,2.6};
const float z[16]={1.123,1.234,1.345,156.467,1.578,1.689,1.790,1.812,1.923,2.034,2.145,2.256,2.367,2.478,2.589,2.690};
float y[16];
for(int i=0;i<16;i++)
{
y[i]=x[i];
}
for(int j=0;j<9000000;j++)
{
fo...
Repeat String - Javascript
...sive algorithm (also called "divide and conquer") is on a string of length 123,457. On my FreeBSD computer this algorithm, implemented in the stringFill3() function, creates the string in 0.001058 seconds, while the original stringFill1() function creates the string in 0.0808 seconds. The new functi...
What are the differences between the urllib, urllib2, urllib3 and requests module?
... go:
userdata = {"firstname": "John", "lastname": "Doe", "password": "jdoe123"}
resp = requests.post('http://www.mywebsite.com/user', data=userdata)
Plus it even has a built in JSON decoder (again, I know json.loads() isn't a lot more to write, but this sure is convenient):
resp.json()
Or if y...
How to click first link in list of items after upgrading to Capybara 2.0?
...
123
Try the following:
within ".item" do
click_link("Agree", :match => :first)
end
Sources...
What is the ideal data type to use when storing latitude / longitude in a MySQL database?
... 6 digits after the decimal, plus up to 4 digits before the decimal, e.g. -123.456789 degrees.". If unsigned is checked the pattern will be 1234,567890. So no problems.
– 1.44mb
Feb 19 '14 at 10:58
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How do I convert an integer to binary in JavaScript?
... This link may be of interest to some stackoverflow.com/questions/12337360/… anyhow, Your answer contradicts itself, you write "Javascript represents negative binary integers in two's-complement notation." And your code says " Here you could represent the number in 2s compliment but thi...