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Fastest way to count exact number of rows in a very large table?
...nly speculate. Does the db maintenance process find out that there are 42,123,876 rows in table A and then create 42,123,876 empty rows in table B, and then loop through table A and update the rows in table B...? Or is it crazier than that? ;-)
– Tony Andrews
...
How to add Web API to an existing ASP.NET MVC 4 Web Application project?
....Routing, System.Web.Net and System.Net.Http?
– gabed123
Mar 7 '19 at 23:04
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NoSQL - MongoDB vs CouchDB [closed]
...
123
If you are coming from the MySQL world, MongoDB is going to "feel" a lot more natural to you b...
Does every Javascript function have to return a value?
...s) to return void:
void noReturn()//return type void
{
printf("%d\n", 123);
return;//return nothing, can be left out, too
}
//in JS:
function noReturn()
{
console.log('123');//or evil document.write
return undefined;//<-- write it or not, the result is the same
return;//<...
Selecting data frame rows based on partial string match in a column
... 4 140.8 95 3.92 3.15 22.9 1 0 4 2
# Merc 280 19.2 6 167.6 123 3.92 3.44 18.3 1 0 4 4
# Merc 280C 17.8 6 167.6 123 3.92 3.44 18.9 1 0 4 4
# Merc 450SE 16.4 8 275.8 180 3.07 4.07 17.4 0 0 3 3
# Merc 450SL 17.3 8 275.8 180 3.07 3.73 17.6 0 0 3 ...
How to become an OpenCart guru? [closed]
...y of key => value pairs. As an example
$this->data['example_var'] = 123;
Accessing this in a view is a little should be easy to understand if you're familiar with the extract() method which converts each key into a variable. So the example_var key becomes $example_var and can be accessed as...
Merge pull request to a different branch than default, in Github
... to the pull request number. That is:
(Assuming the pull request number is 123)
Merge remote-tracking branch 'user/their-branch' into your-branch
refs #123 solving whatever...
So next time you visit your github issues/pull-requests page and check that particular pull request, you will see your mes...
Creating .pem file for APNS?
...elopment Push Services” > Export “Apple Development Push Services ID123″. Save this as apns-dev-cert.p12 file somewhere you can access it. There is no need to enter a password.
The next command generates the cert in Mac’s Terminal for PEM format (Privacy Enhanced Mail Security Certificate...
What are carriage return, linefeed, and form feed?
...
printf("123\f456\f789"); shows /><bold>123456789</bold> on console.
– Mayur
Feb 27 '19 at 6:02
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Effects of changing Django's SECRET_KEY
...ership]::GeneratePassword(50,5)
With Bash (source):
# tr includes ABCabc123 and the characters from OWASP's "Password special characters list"
cat /dev/urandom | tr -dc 'A-Za-z0-9!"#$%&\''()*+,-./:;<=>?@[\]^_`{|}~' | head -c 100 ; echo
At this point I thought why not try a larger key,...