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Random record from MongoDB
... race conditions are valid, but for collections where neither matters (one-time server-side batch extract in a collection where records aren't deleted), this is vastly superior to the hacky (IMO) solution in the Mongo Cookbook.
– Michael Moussa
Sep 5 '12 at 16:...
Count number of records returned by group by
... This down side of this solution is that it gives you the answer multiple times (for each combination of column_1, column_2, column_3, column_4). This may or may not be a significant side-effect, depending on how you process the results.
– cartbeforehorse
Feb...
what is the unsigned datatype?
I've seen this unsigned "typeless" type used a couple of times, but never seen an explanation for it. I suppose there's a corresponding signed type. Here's an example:
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How to do a recursive find/replace of a string with awk or sed?
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35 Answers
35
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How to loop over files in directory and change path and add suffix to filename
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This is still a timely warning. I thought I had created my script incorrectly, but I had my file extension lower case instead of upper case, it found no files, and returned the glob pattern. ugh.
– RufusVS
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Create Pandas DataFrame from a string
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Time to sort out which import: Should we use pandas.compat.StringIO or Python 2/3 StringIO?
– smci
May 11 '18 at 0:30
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Why a function checking if a string is empty always returns true? [closed]
I have a function isNotEmpty which returns true if the string is not empty and false if the string is empty. I've found out that it is not working if I pass an empty string through it.
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What is the difference between a cer, pvk, and pfx file?
...st a string of "A-Za-z0-9+/" used to represent 0-63, 6 bits of binary at a time, in sequence, sometimes with 1 or 2 "=" characters at the very end when there are leftovers ("=" being "filler/junk/ignore/throw away" characters)
the header and footer is something like "-----BEGIN CERTIFICATE-----" and...
Need to list all triggers in SQL Server database with table name and table's schema
I need to list all triggers in SQL Server database with table name and table's schema.
19 Answers
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What's the algorithm to calculate aspect ratio?
I plan to use it with JavaScript to crop an image to fit the entire window.
18 Answers
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