Date Calculations

SQLServerCentral Article

SQL Window Functions Series: LAG() and LEAD()

  • Article

Dive deep into the powerful SQL window functions, LAG() and LEAD(). Explore their intricacies, discover real-world examples, and avoid common pitfalls.

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2023-12-11

5,089 reads

SQLServerCentral Article

Combine DATE and TIME to DATETIME2 in SQL Server

  • Article

The most common method on the internet for combining DATE and TIME columns in SQL Server is incorrect. This article demonstrates why that and other methods are incorrect and two lesser known high performance methods that produce correct results even for the "edge cases".

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2023-08-07

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SQLServerCentral Article

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2022-07-13

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Question of the Day

What's Wrong with this Table?

What's wrong with this code and causes an error?

CREATE TABLE Customer
(
    CustomerID INT NULL,
    FirstName NVARCHAR(50) NOT NULL,
    LastName NVARCHAR(50) NULL,
    Email NVARCHAR(100) NOT NULL,
CONSTRAINT CustomerPK PRIMARY KEY (CustomerID, LastName)
);


See possible answers