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Scheduling SQL Agent Jobs on Alternating Weeks

Bi-week... semi-week... fortnight... "every two weeks" Recently on the SQL Community Slack group, someone asked if there was a way to schedule a backup to run on alternate weeks. I'm not exactly sure why (maybe they wanted to run full and differential backups on alternating weeks), but yes, we can do that. In part one […]

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2023-11-17

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Question of the Day

The LAGging NULL

I have this data in a SQL Server 2022 table:

player         yearid team HR
Alex Rodriguez 2012   NYY  18
Alex Rodriguez 2013   NYY  7
Alex Rodriguez 2014   NYY  NULL
Alex Rodriguez 2015   NYY  12
Alex Rodriguez 2016   NYY  9
If I run this code, what are the results returned in the hrgrowth column?
SELECT
  player
, yearid
, hr
, hr - LAG (hr, 1, 0) IGNORE NULLS OVER (ORDER BY yearid) AS hrgrowth
FROM dbo.playerstats;

See possible answers