MySQL – BTA Blog

MySQL JASON_VALUE fails with a key starting with a number

Dirk — Sat, 27 Jul 2024 18:26:32 +0000

SELECT JSON_VALUE('{"dateTime": "2024-07-21 08:11:07 -0600", "60SecInches": 0.00, "DailyInches": 0.01, "TotalInches": 10.61}', "$.60SecInches"); MySQL said: #3143 – Invalid JSON path expression. The error is around character position 13. That seems to point to the end of this string. "$.60SecInches" If I remove the “60” from the key, the above SELECT works. But the following works as …

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Upgrading Drupal and blocked by MySQL library version

Dirk — Thu, 29 Feb 2024 18:48:52 +0000

Recently I was upgrading a Drupal installation to version 9.5.11 and when in maintenance mode, received the error: 10.5.20-MariaDB-cll-lve-log The libmysqlclient driver version 3.1.21 is less than the minimum required version. Upgrade to libmysqlclient version 5.5.3 or up, or alternatively switch mysql drivers to MySQLnd version 5.0.9 or up. Since this installation was on a …

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MySQL/MariaDB needs upgrading after upgrading

Dirk — Sat, 02 Oct 2021 22:06:12 +0000

Recently I was reviewing log files for one of my servers and came across the following error message: mysqldump: Couldn't execute 'SHOW FUNCTION STATUS WHERE Db = 'mysql'': Cannot load from mysql.proc. The table is probably corrupted (1728) mysqldump: Couldn't execute 'SHOW FUNCTION STATUS WHERE Db = 'mydatabase'': Cannot load from mysql.proc. The table is …

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MySQL and UTF-8

Dirk — Fri, 08 Jul 2011 22:50:24 +0000

I recently had a problem in a web application that I created where the UTF-8 characters were not interpreted correctly by browsers. The biggest issue was this did not happen in all instances of presenting these UTF-8 strings. After tracing the strings through several libraries, I found the culprit. The following SQL statement was the …

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MySQL: Setting date field default to current date

Dirk — Thu, 24 Mar 2011 17:43:59 +0000

In MySQL, creating a date/time stamp field that defaults to the current date/time has been a problem in the past. MySQL restricted you to one timestamp field per table that is automatically updated with the current date/time. Early versions of MySQL allowed multiple updating timestamp fields contrary to the specification, but this was “fixed” in …

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