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PL/SQL, how to escape single quote in a string?
...cularly useful when I have to create a number of insert/update statements based on a large amount of existing data.
Here's a very quick example:
Lets say we have a very simple table, Customers, that has 2 columns, FirstName and LastName. We need to move the data into Customers2, so we need to ...
How to check if object (variable) is defined in R?
... looking for exists. Keep in mind that using exists with names used by R's base packages would return true regardless of whether you defined the variable:
> exists("data")
[1] TRUE
To get around this (as pointed out by Bazz; see ?exists), use the inherits argument:
> exists("data", inherit...
Set selected item of spinner programmatically
...sing a spinner which uses an array adapter which is populated from the database.
21 Answers
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in entity framework code first, how to use KeyAttribute on multiple columns
...ke me, you prefer to use a configuration file you can do that in this way (based on Manavi's example):
public class User
{
public int UserId { get; set; }
public string Username { get; set; }
}
public class UserConfiguration : EntityTypeConfiguration<User>
{
public UserConfigur...
How to determine if a type implements an interface with C# reflection
...d this is a very little personal choice to make it slightly "more natural" based on one's preferences):
public static class TypeExtensions
{
public static bool IsAssignableTo(this Type type, Type assignableType)
{
return assignableType.IsAssignableFrom(type);
}
}
And why not g...
In MVC, how do I return a string result?
...ple return statements which are used to send either string or JSON or View based on conditions then we must use Content to return string.
– DhruvJoshi
Aug 26 '15 at 12:53
add ...
Regex Email validation
... here: C# – Email Regular Expression
Also, this checks for RFC validity based on email syntax, not for whether the email really exists. The only way to test that an email really exists is to send and email and have the user verify they received the email by clicking a link or entering a token.
T...
ASP.NET MVC Yes/No Radio Buttons with Strongly Bound Model MVC
...ViewData.TemplateInfo.GetFullHtmlFieldName(name);
// Generate the base ID
TagBuilder tagBuilder = new TagBuilder("input");
tagBuilder.GenerateId(fullName);
string idAttr = tagBuilder.Attributes["id"];
// Create an ID specific to the boolean direction
...
How to get the name of the calling method?
...ing the search, then using an array method to split of unwanted characters based on position (which could be incorrect).
– New Alexandria
Jul 9 '12 at 21:12
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