sqlsunday.com

T-SQL tips and tricks, best practices and query plans from the field.

Skip to content
  • sqlsunday.com
    • About
  • Structured Concepts
    • Master data tool
    • Send passwords
  • Slack app
  • Presentations
  • Downloads
  • Checklists
    • Installing SQL Server 2014
    • Installing SQL Server 2016
    • Installing SQL Server 2017
    • Installing SQL Server 2019
    • Installing SQL Server 2022
    • Links and utilities
Search

rank

Segment and Sequence Project

2014-12-072014-12-03 / Daniel Hutmacher / Leave a comment

For windowed functions, SQL Server introduces two new operators in the execution plan; Segment and Sequence Project. If you’ve tried looking them up in the documentation, you’ll know that it’s not exactly perfectly obvious how they work. Here’s my stab at clarifying what they actually do.

Continue reading →

An introduction to windowed functions

2013-03-312013-03-22 / Daniel Hutmacher / 11 Comments

Windowed functions are a powerful feature of T-SQL, allowing you to perform advanced aggregates. They provide a very efficient way of doing this as soon as you just get the hang of the OVER() clause.

Continue reading →

Microsoft Most Valuable Professional
  • Mastodon
  • WordPress
  • LinkedIn
  • Twitter
  • Facebook
  • GitHub
  • RSS Feed

Search

Categories

  • By difficulty (202)
    • Advanced (42)
    • Basics (59)
    • Intermediate (103)
  • CLR (1)
  • Code review (1)
  • Datasets (1)
  • Off-topic (14)
  • Rant (6)
  • Scripts (20)
  • Series (33)
    • Efficient data (10)
    • Introduction to T-SQL (1)
    • Slowly changing dimensions (5)
    • SQL Server security (17)
  • SQL Server concepts (86)
  • T-SQL (148)
  • Tips (60)
  • Uncategorized (1)
  • Videos (2)
Daniel Hutmacher, Structured Concepts AB

SQL SERVER HELP YOU CAN DEPEND ON.

Need SQL Server help?

At Structured Concepts, we specialize in SQL Server development and performance tuning, as well as technical training for users and developers.

Visit our homepage at strd.co.

Mastodon
Create a website or blog at WordPress.com
  • Follow Following
    • sqlsunday.com
    • Join 184 other followers
    • Already have a WordPress.com account? Log in now.
    • sqlsunday.com
    • Customize
    • Follow Following
    • Sign up
    • Log in
    • Report this content
    • View site in Reader
    • Manage subscriptions
    • Collapse this bar