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Colin 't Hart's user avatar
Colin 't Hart's user avatar
Colin 't Hart's user avatar
Colin 't Hart
  • Member for 13 years, 3 months
  • Last seen more than a week ago
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Dutch Australian living in Sweden.

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Top posts
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answer
40
Why are constraints applied in the database rather than the code?
Apr 12, 2013
answer
33
Use of HAVING without GROUP BY in SQL queries
Jan 24, 2014
answer
30
In PostgreSQL, how do I make it so that either column A or column B must be non-null?
Feb 3, 2021
answer
13
What is the best way to store an email address in PostgreSQL?
Jun 15, 2014
answer
13
mysql - order by first condition in where clause
Mar 27, 2015
answer
10
pg_resetxlog command not found
Feb 17, 2019
answer
10
How to use a view to span two tables that are identical
Jun 22, 2015
answer
10
How to most efficiently find out if a record has child records?
Aug 17, 2018
answer
9
Adding condition to Unique Constraint
Dec 4, 2020
answer
9
Primary key auto increment best practices
Feb 11, 2015
Top Meta posts
9
4
18
Remove tag [tag:access] and blacklist it
10
Can we add text to the effect that ORA-00600 errors are off-topic?
10
Delete tag sqlsql-server-2012
9
Can we burninate the [truncation] tag?
8
Revisiting upsert vs merge
Top network posts
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170
How can I make a div stick to the top of the screen once it's been scrolled to?
101
What status code should I use when session token is invalid?
51
When to use SELECT ... FOR UPDATE?
26
How can I copy a single file and maintain directory structure?