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ypercubeᵀᴹ
  • Member for 13 years, 5 months
  • Last seen this week
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About

Interests: math, programming and games, not necessarily in that order.

Favourite numbers: Surreals

As of 2019 October 1st, I have stopped almost activity on the DBA site and the whole SE network.

The reason is the abominable behaviour of SE towards its users (see Monica incident, etc).

I have been adding the occasional comment since then but no questions, answers, edits or moderation activities.

And no hats either. No, I do not hate them.

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Top posts
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234
Good explanation of cascade (ON DELETE/UPDATE) behavior
Jun 20, 2013
117
How do I insert a row which contains a foreign key?
Jul 16, 2013
80
selecting where two columns are in a set
Feb 6, 2013
60
EXISTS (SELECT 1 ...) vs EXISTS (SELECT * ...) One or the other?
Dec 29, 2016
58
Why does this query work?
Jun 27, 2016
58
How to limit maximum number of rows in a table to just 1
Jun 21, 2016
56
What is a WITH CHECK CHECK CONSTRAINT?
Mar 22, 2017
55
How to combine date and time to datetime2 in SQL Server?
Oct 13, 2013
53
How to select specific rows if a column exists or all rows if a column doesn't
Jun 19, 2013
52
How to select distinct for one column and any in another column?
Sep 14, 2012
Top Meta posts
3
16
26
It has been a great privilege to serve this amazing community as moderator. Thank you
21
Is there any way to fix reputation mechanics here?
20
Is this ageism or acceptable humour?
14
My reviewing of questions is declared "blatantly bad"; why, and how can I improve?
13
how to prevent other people's comments from being deleted?
Top network posts
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329
Sql Server 'Saving changes is not permitted' error ► Prevent saving changes that require table re-creation
322
Does the join order matter in SQL?
315
MySQL COUNT DISTINCT
262
MySQL IF NOT NULL, then display 1, else display 0
182
must appear in the GROUP BY clause or be used in an aggregate function