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MySQL - Make an existing Field Unique
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ALTER IGNORE TABLE mytbl ADD UNIQUE (columnName);
For MySQL 5.7.4 or later:
ALTER TABLE mytbl ADD UNIQUE (columnName);
As of MySQL 5.7.4, the IGNORE clause for ALTER TABLE is removed and
its use produces an error.
So, make sure to remove duplicate entries first as IGNORE keyword...
How to get current formatted date dd/mm/yyyy in Javascript and append it to an input [duplicate]
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14
For most uses, replace the last line with "return today;"
– sitesbyjoe
Dec 1 '14 at 22:26
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MVC Razor dynamic model, 'object' does not contain definition for 'PropertyName'
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edited Nov 17 '14 at 15:33
answered Feb 4 '11 at 19:44
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Text-align class for inside a table
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1437
Bootstrap 3
v3 Text Alignment Docs
<p class="text-left">Left aligned text.</p>
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Class does not implement its superclass's required members
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4 Answers
4
Active
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Ruby's ||= (or equals) in JavaScript?
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edited Oct 24 '17 at 11:52
Syed Aslam
8,15955 gold badges3737 silver badges5353 bronze badges
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How can I run dos2unix on an entire directory? [closed]
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edited Feb 25 '17 at 4:00
therealjumbo
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answered ...
C# switch statement limitations - why?
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edited May 23 '17 at 11:46
Community♦
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answered Sep 4 '08 at 22:51
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How do I remove duplicates from a C# array?
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437
You could possibly use a LINQ query to do this:
int[] s = { 1, 2, 3, 3, 4};
int[] q = s.Disti...
How do I handle newlines in JSON?
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edited Oct 14 '13 at 12:04
answered Sep 3 '08 at 16:32
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