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SQL update trigger only when column is modified
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answered Aug 27 '12 at 12:10
mehdi lotfimehdi lotfi
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What do pty and tty mean?
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edited Jul 12 '18 at 9:40
JohnGH
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answered Dec 13 '10 at 6:21
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Using Linq to get the last N elements of a collection?
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collection.Skip(Math.Max(0, collection.Count() - N));
This approach preserves item order without a dependency on any sorting, and has broad compatibility across several LINQ providers.
It is important to take care not to call Skip with a negative ...
log4j logging hierarchy order
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306
This table might be helpful for you:
Going down the first column, you will see how the log w...
Why does an overridden function in the derived class hide other overloads of the base class?
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410
Judging by the wording of your question (you used the word "hide"), you already know what is goi...
What are the differences between poll and select?
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90
I think that this answers your question:
From Richard Stevens (rstevens@noao.edu):
The ...
Ruby's ||= (or equals) in JavaScript?
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answered Sep 30 '13 at 7:27
Dzung NguyenDzung Nguyen
8,6601313 gold badges5959 silver badges9898 bronze badges
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SQL UPDATE all values in a field with appended string CONCAT not working
... linda |
| 3 | sam |
| 4 | henry |
+------+-------+
4 rows in set (0.02 sec)
mysql> update t set data=concat(data, 'a');
Query OK, 4 rows affected (0.01 sec)
Rows matched: 4 Changed: 4 Warnings: 0
mysql> select * from t;
+------+--------+
| id | data |
+------+--------+
| 1 ...
Are parallel calls to send/recv on the same socket valid?
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Robert Harvey
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answered Dec 30 '09 at 17:46
Chris DoddChris Dodd
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Why does 2 == [2] in JavaScript?
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edited Nov 12 '09 at 19:11
answered Nov 12 '09 at 19:00
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