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How do I handle too long index names in a Ruby on Rails ActiveRecord migration?
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edited Nov 28 '18 at 10:39
Martin Verdejo
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answered ...
How to calculate moving average using NumPy?
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173
If you just want a straightforward non-weighted moving average, you can easily implement it with...
How do I import CSV file into a MySQL table?
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134
The core of your problem seems to be matching the columns in the CSV file to those in the table...
How do I spool to a CSV formatted file using SQLPLUS?
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30
If you are using 12.2, you can simply say
set markup csv on
spool myfile.csv
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How do I list all cron jobs for all users?
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23 Answers
23
Active
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Detecting endianness programmatically in a C++ program
... what unions are for !
bool is_big_endian(void)
{
union {
uint32_t i;
char c[4];
} bint = {0x01020304};
return bint.c[0] == 1;
}
The principle is equivalent to the type case as suggested by others, but this is clearer - and according to C99, is guaranteed to be corre...
Regular expression to allow spaces between words
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384
tl;dr
Just add a space in your character class.
^[a-zA-Z0-9_ ]*$
Now, if you want to...
How do I perform the SQL Join equivalent in MongoDB?
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310
As of Mongo 3.2 the answers to this question are mostly no longer correct. The new $lookup ope...
How to check Oracle database for long running queries
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135
This one shows SQL that is currently "ACTIVE":-
select S.USERNAME, s.sid, s.osuser, t.sql_id, ...
What does multicore assembly language look like?
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edited May 23 '17 at 12:18
Community♦
111 silver badge
answered Jun 13 '09 at 18:09
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