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What causes “Unable to access jarfile” error?
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answered Sep 16 '14 at 10:26
Vinay KadalagiVinay Kadalagi
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Run PostgreSQL queries from the command line
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504
psql -U username -d mydatabase -c 'SELECT * FROM mytable'
If you're new to postgresql and unfam...
How can I create a Makefile for C projects with SRC, OBJ, and BIN subdirectories?
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34
First, your $(OBJECTS) rule is problematic, because:
it's kind of indiscriminate, making all s...
What is the difference between C, C99, ANSI C and GNU C?
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answered Jun 20 '13 at 9:04
LundinLundin
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Count the number of occurrences of a string in a VARCHAR field?
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346
This should do the trick:
SELECT
title,
description,
ROUND (
(
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IEnumerable to string [duplicate]
...r sequence on a 32-bit release build:
ToArrayString: 00:00:03.1695463
Concat: 00:00:07.2518054
StringBuilderChars: 00:00:03.1335455
StringBuilderStrings: 00:00:06.4618266
static readonly IEnumerable<char> seq = Enumerable.Repeat('a', 300);
static string ToArrayStrin...
Is there a simple way to delete a list element by value?
...element. Use a list comprehension for that.
>>> a = [10, 20, 30, 40, 20, 30, 40, 20, 70, 20]
>>> a = [x for x in a if x != 20]
>>> print(a)
[10, 30, 40, 30, 40, 70]
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How to sleep for five seconds in a batch file/cmd [duplicate]
...MultiplyByZer0
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answered Nov 4 '09 at 8:20
MartinMartin
35.2k2020 gold badg...
How do you set your pythonpath in an already-created virtualenv?
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mdeousmdeous
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Elegant way to invert a map in Scala
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174
Assuming values are unique, this works:
(Map() ++ origMap.map(_.swap))
On Scala 2.8, however,...