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Android存储系统基础知识：内部存储，外部存储，App特定目录 ASD(app speci...
...存在： /data/data//
私有目录在： /data/user/0//files/
私有目录可与文件组件一起使用来保存/读取文本（设置不带斜杠的路径），它只能由您的应用程序访问，并且在卸载应用程序时会自动删除。
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Assigning default value while creating migration file
...olumn :tweet, :retweets_count, :integer, :null => false, :default => 0
... and read Rails API
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How to determine if a number is odd in JavaScript
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360
Use the below code:
function isOdd(num) { return num % 2;}
console.log("1 is " + isOdd(1))...
Formatting Numbers by padding with leading zeros in SQL Server
We have an old SQL table that was used by SQL Server 2000 for close to 10 years.
13 Answers
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Plot logarithmic axes with matplotlib in python
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You can use the Axes.set_yscale method. That allows you to change the scale after the Axes obje...
How can I scale an entire web page with CSS?
...{
zoom: 3;
-moz-transform: scale(3);
-moz-transform-origin: 0 0;
}
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Pandas convert dataframe to array of tuples
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How do I declare and initialize an array in Java?
...s/api/java/util/stream/IntStream.html
int [] myIntArray = IntStream.range(0, 100).toArray(); // From 0 to 99
int [] myIntArray = IntStream.rangeClosed(0, 100).toArray(); // From 0 to 100
int [] myIntArray = IntStream.of(12,25,36,85,28,96,47).toArray(); // The order is preserved.
int [] myIntArray =...
is it possible to select EXISTS directly as a bit?
...o, you'll have to use a workaround.
If you must return a conditional bit 0/1 another way is to:
SELECT CAST(
CASE WHEN EXISTS(SELECT * FROM theTable where theColumn like 'theValue%') THEN 1
ELSE 0
END
AS BIT)
Or without the cast:
SELECT
CASE
WHEN EXISTS( SELECT 1 FROM the...