Event scheduler in MySQL 5.1

Accidentially I came across the statement “SHOW GRANTS requires the SELECT privilege for the mysql database.” in MySQL  documentation (http://dev.mysql.com/doc/refman/5.1/en/show-grants.html).

It is not quite true. Any user can “SHOW GRANTS [FOR himself]” with no privileges at all. But more important: SELECT priviege is requried on database-level,  Privilege to the privileges tables is not enough.  See

SHOW GRANTS;
/*returns

Grants for me@%
—————————————————–
GRANT USAGE ON *.* TO ‘me’@'%’
GRANT SELECT ON `mysql`.`user` TO ‘me’@'%’
GRANT SELECT ON …

I just recently used Event scheduler which was the major feature in MySQL 5.1 version. Its very much similar to the linux crontab functionality. MySQL Event is nothing but a bunch of statements which we can run on specific schedule. When you will create any event, its just a database object like table, view or … Continue Reading …

With new year many new projects, new technologies, new frameworks and new ideas are springing up at the speed of light and bloggers in the database arena are keeping up with this pace and this Log Buffer Edition is also living up to that pace and covers some of those posts in Log Buffer #257. [...]

Collaborate 2012 MySQL Sessions

Please mark you calendars for the MySQL sessions at Collaborate this April in Las Vegas.

Schooner has a blog post showing that one node of their product beats 9 nodes of Clustrix’s in throughput. But this reduces everything to a single number, and that’s not everything that matters. If you’ve looked at Vadim’s white paper about Clustrix’s (paid-for) performance evaluation with Percona, you see there is a lot of detail about how consistent the throughput and response time are.

I’d love to see that level of details in any product comparison. A single number often isn’t enough to judge how good the performance is — fast is not the only thing that matters.

I have absolutely no doubts that a single node of Schooner’s product can run like a deer. It isn’t doing any cross-node …

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http://collaborate12.ioug.org   Double Down at COLLABORATE 12- The IOUG Forum with Two Ways to Save- and a Chance to Win! The user-driven Oracle event of the year is fast-approaching, and IOUG wants you to make youreducational experience a sure bet. Between … Continue reading →

Thanks to everyone who has already taken part in our survey exploring changing attitudes to MySQL following its acquisition by Oracle and examining the competitive dynamic between MySQL and other database technologies, including NoSQL and NewSQL.

The response has been great and even a quick look at the results makes for interesting reading, particularly in the light of our previous findings which indicated declining MySQL usage.

I am really looking forward to having the opportunity for a deep dive into the results and break out the figures to get a better understanding of the potential impact of alternative MySQL distribution and support providers, as well as NoSQL and NewSQL, on continued usage of MySQL.

The survey results will be …

If you’ve tried compiling MySQL/MariaDB/XtraDB from source code on Windows, you may have run into the following error:

C:\GnuWin32\bin\bison.exe: m4: Invalid argument

Now, it is a known bug to receive this error if you install it to a location with spaces in the path. So don’t do that!

But, there are cases when you have not installed it to a path with spaces, and you still receive this error.

I’ve encountered it a number of times, and I’m not the only one (btw, thanks Venu for your existing work-around up to this point!).

…

Problem:

Compile MySQL/MariaDB/XtraDB on Windows and receive the following error …