Hello and welcome to our comprehensive guide on Bigint in SQL Server. If you are a SQL developer or administrator, understanding the basics of Bigint is crucial for the optimal performance of your database applications. In this article, we will explore everything you need to know about Bigint in SQL Server, from its definition to its use cases and common FAQs. So, let’s dive in!
What is Bigint in SQL Server?
Bigint is one of the built-in data types in SQL Server, representing a large integer value that ranges from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807. Its size is 8 bytes, making it larger than the int and smallint data types but smaller than the float and decimal data types. Bigint is commonly used for storing large numerical values, such as primary keys, foreign keys, and timestamps, that require more storage space than the int data type. Let’s take a closer look at the features and properties of Bigint in SQL Server.
The Features of Bigint in SQL Server
Bigint in SQL Server offers several features that make it a versatile data type for handling large integer values.
|Bigint can represent integer values from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807.
|Bigint is 8 bytes in size, making it larger than int and smallint but smaller than float and decimal.
|Bigint is compatible with most programming languages, including C#, Java, and Python.
|Bigint offers excellent performance for handling large integer values compared to other data types.
The Properties of Bigint in SQL Server
Bigint in SQL Server has several properties that determine its behavior and usage in database applications.
|Bigint can be used as an identity column, which automatically generates a unique integer value for each new row added to a table.
|Bigint can be used as a primary key column, which enforces the uniqueness of values in a table and allows faster search and retrieval of data.
|Bigint can be used as a foreign key column, which establishes a relationship between two tables and maintains data integrity.
|Bigint supports arithmetic operations, such as addition, subtraction, multiplication, and division, on integer values.
How to Use Bigint in SQL Server?
Using Bigint in SQL Server is fairly straightforward. You can declare a Bigint variable or column by specifying the BIGINT data type in the CREATE TABLE or DECLARE statement. For example:
CREATE TABLE Employee
EmployeeID BIGINT PRIMARY KEY,
DECLARE @salary BIGINT = 100000;
You can also use Bigint as an identity column or a foreign key column by specifying the IDENTITY or FOREIGN KEY constraint, respectively. For example:
CREATE TABLE Department
DepartmentID BIGINT PRIMARY KEY,
CREATE TABLE Employee
EmployeeID BIGINT PRIMARY KEY IDENTITY(1,1),
DepartmentID BIGINT FOREIGN KEY REFERENCES Department(DepartmentID)
Common FAQs About Bigint in SQL Server
What is the maximum value of Bigint in SQL Server?
The maximum value of Bigint in SQL Server is 9,223,372,036,854,775,807.
What is the minimum value of Bigint in SQL Server?
The minimum value of Bigint in SQL Server is -9,223,372,036,854,775,808.
How much storage space does Bigint occupy in SQL Server?
Bigint occupies 8 bytes of storage space in SQL Server.
Can Bigint be used as a primary key or a foreign key in SQL Server?
Yes, Bigint can be used as a primary key or a foreign key in SQL Server.
What is the performance impact of using Bigint in SQL Server?
Using Bigint in SQL Server has a minimal performance impact compared to other data types for handling large integer values.
Can Bigint be used with other data types in SQL Server?
Yes, Bigint can be used with other data types in SQL Server, such as VARCHAR, INT, FLOAT, and DECIMAL, using conversion functions like CAST and CONVERT.
Bigint in SQL Server is a versatile data type for handling large integer values that offers excellent performance and compatibility with most programming languages. Its features and properties, including range, size, identity, primary key, foreign key, and arithmetic operations, make it a popular choice for database applications. We hope this comprehensive guide has provided you with valuable insights into Bigint in SQL Server and its usage in real-world scenarios. If you have any further questions or comments, please feel free to reach out to us.