How to avoid duplicates values in table to filter list in php with Javascript


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asked Mar 16, 2016 by Roessing (400 points)
I have renewed list and its out of date list is also stored in table.

5 Answers

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answered Jun 2, 2016 by hc8019heres (520 points)
 
Best answer
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answered May 17, 2016 by baumeister (110 points)

For such a query, group byjust produces a list of distinct grouping values.
Did you knowthat the group by clause can also be used to remove duplicates. See example here Eliminating Duplicate Rows from MySQL Result Sets — DatabaseJournal.com
commented May 19, 2016 by Ottaway (710 points) 1 flag
For more details see this answer
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answered Jun 2, 2016 by Vanbeek_25 (140 points)

For such a query, group byjust produces a list of distinct grouping values.
Did you knowthat the group by clause can also be used to remove duplicates. See example here Eliminating Duplicate Rows from MySQL Result Sets — DatabaseJournal.com
0 votes
answered Jun 2, 2016 by doActually (150 points)
Found this years ago on MySQL Handling Duplicates - Tutorialspoint
I also would like to mention we have free licenses for open source projects
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answered Jun 2, 2016 by gurLike (700 points)
See How does one eliminate duplicates rows from a table ... for an example of this specific usage
commented Jun 3, 2016 by exists (870 points)
This implementation performs an unstable sort

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