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How to check if a database exists in SQL Server?
...TS
(
SELECT name FROM master.dbo.sysdatabases
WHERE name = N'New_Database'
)
BEGIN
SELECT 'Database Name already Exist' AS Message
END
ELSE
BEGIN
CREATE DATABASE [New_Database]
SELECT 'New Database is Created'
END
...
LINQ to Entities only supports casting EDM primitive or enumeration types with IEntity interface
...allows collection.FirstOrDefault() to run correctly as it likely returns a new instance of T calling a default ctor on a class based type.
– War
May 8 '19 at 13:03
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Get names of all keys in the collection
...
You can use aggregation with the new $objectToArray aggregation operator in version 3.4.4 to convert all top key-value pairs into document arrays, followed by $unwind and $group with $addToSet to get distinct keys across the entire collection. (Use $$ROOT fo...
Using JQuery to check if no radio button in a group has been checked
...radio"><input id="job1" type="radio" name="job" value="1" checked>New Job</label>
<label class="radio"><input id="job2" type="radio" name="job" value="2">Updating Job</label>
<button type="button" class="btn btn-primary" onclick="save();">Save</button>
...
Spring .properties file: get element as an Array
...onProperties
public class Configuration {
List<String> values = new ArrayList<>();
public List<String> getValues() {
return values;
}
}
This is needed, without this class or without the values in class it is not working.
Spring Boot Application class
impo...
Can I use view pager with views (not with fragments)
...super
}
}
// Set the ViewPager adapter
WizardPagerAdapter adapter = new WizardPagerAdapter();
ViewPager pager = (ViewPager) findViewById(R.id.pager);
pager.setAdapter(adapter);
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impro...
How to exclude a module from a Maven reactor build?
...instead you would have to change the CI configuration everytime there is a new module.
-pl,--projects <arg> Comma-delimited list of specified
reactor projects to build instead
of all projects. A project can...
Force CloudFront distribution/file update
...
Good news. Amazon finally added an Invalidation Feature. See the API Reference.
This is a sample request from the API Reference:
POST /2010-08-01/distribution/[distribution ID]/invalidation HTTP/1.0
Host: cloudfront.amazonaws.c...
MySQL Error 1215: Cannot add foreign key constraint
I am trying to forward engineer my new schema onto my db server, but I can't figure out why I am getting this error. I've tried to search for the answer here, but everything I've found has said to either set the db engine to Innodb or to make sure the keys I'm trying to use as a foreign key are pri...
Count Rows in Doctrine QueryBuilder
...You can borrow from Doctrine\ORM\Tools\Pagination\Paginator:
$paginator = new \Doctrine\ORM\Tools\Pagination\Paginator($query);
$totalRows = count($paginator);
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