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How to reset postgres' primary key sequence when it falls out of sync?
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-- Login to psql and run the following
-- What is the result?
SELECT MAX(id) FROM your_table;
-- Then run...
-- This should be higher than the last result.
SELECT nextval('your_table_id_seq');
-- If it's not higher... run this set the sequ...
What is the difference between customErrors and httpErrors?
What is the difference between the customErrors and httpErrors sections of the web.config file in ASP.NET MVC applications?
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Return index of greatest value in an array
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This is probably the best way, since it’s reliable and works on old browsers:
function indexOfMax(arr) {
if (arr.length === 0) {
return -1;
}
var max = arr[0];
var maxIndex = 0;
for (var i = 1; i < arr.length; i++) {
if (arr[i] > m...
How to extract one column of a csv file
...ou are a lucky guy using GNU Tools in Windows, you can execute the same comand as @IgorMikushkin as follows: gawk -F"|" "{print $13}" files*.csv
– Elidio Marquina
May 25 '17 at 18:33
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How to install a gem or update RubyGems if it fails with a permissions error
... using gem install mygem or update RubyGems using gem update --system , and it fails with this error:
27 Answers
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Python debugging tips [closed]
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PDB
You can use the pdb module, insert pdb.set_trace() anywhere and it will function as a breakpoint.
>>> import pdb
>>> a="a string"
>>> pdb.set_trace()
--Return--
> <stdin>(1)<module>()->None
(Pdb) p a
'a string'
(Pdb)
To continue executio...
How do I create 7-Zip archives with .NET?
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If you can guarantee the 7-zip app will be installed (and in the path) on all target machines, you can offload by calling the command line app 7z. Not the most elegant solution but it is the least work.
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Format a Go string without printing?
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does letter after % matter? Could it be %y and %q ? or %y and %y
– Filip Bartuzi
Mar 28 '17 at 14:11
20
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Search for string and get count in vi editor
I want to search for a string and find the number of occurrences in a file using the vi editor.
8 Answers
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How can I make a div stick to the top of the screen once it's been scrolled to?
...s been scrolled enough to contact its top boundary, becomes fixed in place and scrolls with the page.
21 Answers
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