Primary Key
A primary key is used to identify a record uniquely. A key is used to sort, compare and create a relationship between records. There are some basic rules to follow …
Primary Key Read MoreAuthor: filjan
C# ?? Null Coalescing Operator
A great way in C# to check for null values and handle them in a controlled way is the null coalescing operator ??. It provides a straightforward way to check …
C# ?? Null Coalescing Operator Read MoreUsing The SQL IN and NOT IN
If you wanted to search a bunch of values, you would write a WHERE clause with the values joined by the OR operator. A more readable WHERE clause would be …
Using The SQL IN and NOT IN Read MoreRenaming The Output Columns In SQL
If you need to change the name of the column returned by a query use can use the “AS” clause. Without the AS clause, the returned column name will be …
Renaming The Output Columns In SQL Read MoreC# Abstract Classes
An abstract class in a special class that can’t be instantiated because they are incomplete. The abstract class contains only the definition of the properties or methods. An abstract class …
C# Abstract Classes Read MoreWhat Are C# Interfaces?
An interface defines a contract that all classes that inherit from the interface must follow. This contract contains the signatures of methods, properties, events or indexers that the developer must …
What Are C# Interfaces? Read MoreType Safety In C#
Type safety is code that accesses only the memory locations it is authorized to access. A good type-safe programming language discourages or prevents type errors. A type error is a …
Type Safety In C# Read MoreC# Structs
A C# struct is a lightweight alternative to a class that can contain data members and functions. It can do almost everything a class can do but is smaller memory-wise …
C# Structs Read MoreReference Types
Reference Types In C# there are two different kinds of types, there is the reference types and the value types. A reference type doesn’t contain the actual data but contains …
Reference Types Read MoreValue Types
Value Types All value types are derived from the System.ValueType. Variables that are based on value types directly contain values and holds the data within its own memory allocation. When …
Value Types Read More