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Return Boolean Value on SQL Select Statement
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What you have there will return no row at all if the user doesn't exist. Here's what you need:
SELECT CASE WHEN EXISTS (
SELECT *
FROM [User]
WHERE UserID = 20070022
)
THEN CAST(1 AS BIT)
ELSE CAST(0 AS BIT) END
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What is the HTML tabindex attribute?
... to set the order but just make your element focusable use tabindex="0" on all such elements:
<div tabindex="0"></div>
Also, if you don't want it to be focusable via the tab key then use tabindex="-1". For example, the below link will not be focused while using tab keys to traverse.
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What is the difference between IQueryable and IEnumerable?
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First of all, IQueryable<T> extends the IEnumerable<T> interface, so anything you can do with a "plain" IEnumerable<T>, you can also do with an IQueryable<T>.
IEnumerable<T> just has a GetEnumerator() m...
Entity Framework vs LINQ to SQL
... (ADO.Net Entity Framework) is an ORM (Object Relational Mapper) API which allows for a broad definition of object domain models and their relationships to many different ADO.Net data providers. As such, you can mix and match a number of different database vendors, application servers or protocols ...
Why does Java's hashCode() in String use 31 as a multiplier?
... i == (i << 5) - i. Modern VMs do this sort of optimization automatically.
(from Chapter 3, Item 9: Always override hashcode when you override equals, page 48)
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java.nio.file.Path for a classpath resource
...t I'd get from Class.getResource(String) ) as a java.nio.file.Path ? Ideally, I'd like to use the fancy new Path APIs with classpath resources.
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Error on renaming database in SQL Server 2008 R2
... is WITH ROLLBACK IMMEDIATE necessary. If I don't use it at all, will it cause problems?
– user13892
Sep 6 '19 at 17:53
1
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Text border using css (border around text)
...e CSS3 text-shadow :
text-shadow: 0 0 2px #fff;
However it wont show in all browsers right away. Using a script library like Modernizr will help getting it right in most browsers though.
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OpenID vs. OAuth [duplicate]
What is really the difference between OpenID and oAuth? They look just the same to me.
5 Answers
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SQL statement to get column type
..._SCHEMA.COLUMNS. Just do a SELECT * FROM INFORMATION_SCHEMA.COLUMNS to see all the columns available.
– Francis P
Jul 8 '15 at 12:59
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