DATEADD in SQL Server - Examples & AI Generator

Mastering the DATEADD function in SQL Server is essential for anyone managing date calculations, from forecasting sales to analyzing order timelines. Unlike other databases, SQL Server has a unique DATEADD syntax—so making mistakes or second-guessing parameters is common. AI2sql eliminates the need to memorize or debug DATEADD queries, letting you generate production-ready SQL in seconds—no coding required.

DATEADD Syntax in SQL Server

Core Structure

The DATEADD function in SQL Server adds a specified interval (like days or months) to a date value. Syntax:

DATEADD(datepart, number, date)

• datepart: The time unit (e.g., DAY, MONTH, YEAR).

• number: Value to add (positive or negative).

• date: The starting date expression.

Note: SQL Server requires specific datepart codes—different from other SQL dialects.

DATEADD Examples You Can Generate Instantly

Add 7 Days to Each Order Date

SELECT OrderID, OrderDate, DATEADD(DAY, 7, OrderDate) AS DeliveryEstimate
FROM Orders;

Subtract 1 Month from Each Customer Signup Date

SELECT CustomerID, SignupDate, DATEADD(MONTH, -1, SignupDate) AS PreviousMonthAnniversary
FROM Customers;

Calculate Product Expiration (Adding 365 Days)

SELECT ProductID, ManufactureDate, DATEADD(DAY, 365, ManufactureDate) AS ExpirationDate
FROM Products;

Generate DATEADD queries in 10 seconds with AI2sql

Why Use AI2sql Instead of Manual DATEADD Coding

• Instant generation: Build complex SQL Server DATEADD queries in 10 seconds.

• No coding required: Type natural language prompts (e.g., “Add 2 weeks to each invoice date”).

• SQL Server precision: Avoid syntax errors unique to DATEADD in SQL Server vs other platforms.

• Trusted globally: 50,000+ users across 80+ countries streamline their SQL workflow with AI2sql.

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FAQ: DATEADD in SQL Server

What is DATEADD used for in SQL Server?

DATEADD adds or subtracts a specified time interval (like days, months, or years) to a date field. It's essential for calculating future deadlines, intervals, or previous periods.

How is DATEADD in SQL Server different from other databases?

SQL Server requires three arguments and specific datepart codes (such as DAY, MONTH) that differ from other platforms like MySQL or PostgreSQL.

Does AI2sql support DATEADD for SQL Server?

Yes! With AI2sql, you generate DATEADD SQL Server queries – instantly, and with zero coding or memorization.

Ready to transform how you write SQL Server DATEADD queries? Generate Your First Query Now or Learn DATEADD in depth.