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Using group by on multiple columns
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2113
Group By X means put all those with the same value for X in the one group.
Group By X, Y means...
Running multiple AsyncTasks at the same time — not possible?
I'm trying to run two AsyncTasks at the same time. (Platform is Android 1.5, HTC Hero.)
However, only the first gets executed. Here's a simple snippet to describe my problem:
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Is there a good reason to use upper case for SQL keywords? [closed]
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17 Answers
17
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check if directory exists and delete in one command unix
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151
Assuming $WORKING_DIR is set to the directory... this one-liner should do it:
if [ -d "$WORKI...
Print array elements on separate lines in Bash?
...arate argument, while "$*"
expands to the args merged into one argument: "$1c$2c..." (where c is
the first char of IFS).
You almost always want "$@". Same goes for "${arr[@]}".
Always quote them!
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How can I create an array with key value pairs?
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150
Use the square bracket syntax:
if (!empty($row["title"])) {
$catList[$row["datasource_id"...
How to read the RGB value of a given pixel in Python?
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13 Answers
13
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initializer_list and move semantics
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edited Dec 10 '14 at 23:56
answered Nov 19 '11 at 9:38
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Linux delete file with size 0 [duplicate]
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edited Feb 4 at 11:24
SakiiR
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answered Mar 29 '11 at 16:41...