Blog: Dev MySQL Blog


208 blogs updated: 79 min. ago
InnoDB Locks Analysis: Why is Blocking Query NULL and How To Find More Information About the Blocking Transaction?
This post was originally published on the MySQL Support Team Blog at on 14 April 2017. Consider the scenario that you execute a query. You e...
6
30-05-2017 12:05:27 Dev MySQL Blog MySQL
Working Around MySQL Cluster Push Down Limitations Using Subqueries
This post was originally published on the MySQL Support Team Blog at on 5 August 2016. I worked on an issue recently where a query was too s...
27
30-05-2017 05:31:31 Dev MySQL Blog MySQL
InnoDB Locks Analysis: Why is Blocking Query NULL and How To Find More Information About the Blocking Transaction?
Consider the scenario that you execute a query. You expect it to be fast - typically subsecond - but now it take not return until after 50 s...
15
15-04-2017 06:49:02 Dev MySQL Blog MySQL
LOAD DATA INFILE into a BIT field
BIT values cannot be loaded using binary notation (for example, b'011010'). $ cat test.txt b'101010' 0b111000 ----- CREATE TABLE loadTest (b...
6
22-03-2017 18:58:47 Dev MySQL Blog MySQL
Quiz: Drop non-global users
Somebody asked on Freenode. I don't know why they wanted it. How would you drop all MySQL users who do not have "GRANT ALL ON *.* ... WITH G...
6
16-03-2017 17:00:04 Dev MySQL Blog MySQL
Thank You For Attending Oracle OpenWorld 2016 - Download Slides
MySQL Support was represented at Oracle OpenWorld 2016 with two engineers: Ligaya Turmelle and Jesper Krogh. We did a total of four talks an...
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27-09-2016 02:12:01 Dev MySQL Blog MySQL
Debugging Large Data with Rewriter
A customer showed that a particular client reported a less-than-helpful error message when it tried to display some meta-data about a table....
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21-09-2016 04:31:52 Dev MySQL Blog MySQL
Aggregate JSON function in MySQL
There is not yet an equivalent to GROUP_CONCAT that produces a JSON array. Until there is one, you can hack it together with string function...
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08-09-2016 17:42:52 Dev MySQL Blog MySQL
Meet MySQL Support at Oracle OpenWorld 2016
It is soon time for the annual Oracle OpenWorld conference in San Francisco. This year it takes place from 18 to 22 September. There will be...
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19-08-2016 01:52:35 Dev MySQL Blog MySQL
Working Around MySQL Cluster Push Down Limitations Using Subqueries
I worked on an issue last recently where a query was too slow when executed in MySQL Cluster. The issue was that Cluster has some restrictio...
6
06-08-2016 10:07:40 Dev MySQL Blog MySQL


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