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How do I check if an index exists on a table field in MySQL?
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SHOW INDEX FROM my_table WHERE Key_name = 'index_to_check';
– mit
Nov 13 '10 at 2:58
6
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Using Node.JS, how do I read a JSON file into (server) memory?
... large JSON files. since it would tie up node.
– Sean_A91
Aug 3 '15 at 4:29
25
For the sake of co...
How do I delete from multiple tables using INNER JOIN in SQL server
...ete from first detail table using join syntax
DELETE d
FROM DetailTable_1 D
INNER JOIN #DeleteIds X
ON D.MasterTableId = X.Id
-- delete from second detail table using IN clause
DELETE FROM DetailTable_2
WHERE MasterTableId IN (
SELECT X.Id
FROM #DeleteIds X
)
-- and...
How to play a notification sound on websites?
...bed):
let src = 'https://file-examples.com/wp-content/uploads/2017/11/file_example_MP3_700KB.mp3';
let audio = new Audio(src);
audio.play();
See more here.
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Does a finally block always run?
...led. Is there a catch that I am missing? download.oracle.com/docs/cd/E17476_01/javase/1.5.0/docs/guide/…
– spurserh
Jul 18 '10 at 14:40
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Bash command to sum a column of numbers [duplicate]
...0s
user 2m26.230s
sys 0m0.660s
bash-2.03$ time perl -nle'
$s += $_; END { print $s }
' infile
1.249999925e+15
real 1m34.663s
user 1m33.710s
sys 0m0.650s
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How to read all files in a folder from Java?
... @NadjibMami Please have a look here: razem.io/blog/posts/year2015/0819_try_catch_lambda Was to compilcated to answer in a comment. So I wrote a quick blog post.
– Julian Pieles
Aug 19 '15 at 10:29
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How to programmatically set style attribute in a view
...lour when it's pressed, you could define an XML file called res/drawable/my_button.xml directory like this:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:state_pressed="true"
android:drawable="@dra...
How to get the build/version number of your Android application?
...cation's version this is two compicated. You should use BuildConfig.VERSION_** as suggested here.
– Timo Bähr
Jun 20 '16 at 12:23
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Create a branch in Git from another branch
... newbies, this is what a --no-ff merge looks like
– A__
Oct 6 '18 at 23:01
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