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How to use GROUP_CONCAT in a CONCAT in MySQL
...SEPARATOR ',') AS result
FROM test GROUP BY id
you must use cast or convert, otherwise will be return BLOB
result is
id Column
1 A:4,A:5,B:8
2 C:9
you have to handle result once again by program such as python or java
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Laravel Migration Change to Make a Column Nullable
...`user_id` INTEGER UNSIGNED NOT NULL;');
}
One note is that since you are converting between nullable and not nullable, you'll need to make sure you clean up data before/after your migration. So do that in your migration script both ways:
function up()
{
DB::statement('ALTER TABLE `throttle` M...
Python Create unix timestamp five minutes in the future
...ndar.timegm(future.utctimetuple()). This ensures that a UTC time is passed into calendar.timegm.
– shadowmatter
Jan 31 '13 at 4:28
1
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How to run a method every X seconds
...want to run
Date when = new Date(System.currentTimeMillis());
try{
Intent someIntent = new Intent(someContext,MyReceiver.class); // intent to be launched
// note this could be getActivity if you want to launch an activity
PendingIntent pendingIntent = PendingIntent.getBroadcast(
...
Android get free size of internal/external memory
I want to get the size of free memory on internal/external storage of my device programmatically. I'm using this piece of code :
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How can I solve a connection pool problem between ASP.NET and SQL Server?
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If your function returns SqlDataReader you are better off converting it to DataTable than raising the max pool size
– live-love
Dec 8 '14 at 20:12
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How to get the build/version number of your Android application?
...fo.versionName;
} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
}
And you can get the version code by using this
int verCode = pInfo.versionCode;
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Using “super” in C++
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After I few months, I was converted to your viewpoint (and I DID had a bug because of a forgotten "super", like you mentionned...). You are quite right in your answer, including the chaining, I guess. ^_^ ...
– paercebal
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Open file dialog box in JavaScript
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You should convert this to normal Javascript, JQuery isnt logical to use on such a small project ^_^
– Mister SirCode
Oct 11 '19 at 13:11
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Can I store images in MySQL [duplicate]
...atabases are ultimately stored on disk. This means that your DB images are converted to blobs, inserted into a database, and then stored on disk; you can save a lot of overhead by simply storing them on disk.
Instead, consider updating your table to add an image_path field. For example:
ALTER TAB...