Database error: A database query error has occurred.
After updating an existing SMW 1.9.0 installation the following messages may occur: Database error: A database query error has occurred. This may indicate a bug in the software.
This error appears after an upgrade from SWM 1.9.0 to 1.9.1 when moving a page and if you have not updated the semantic store. To resolve this run the setup script from the base directory1 of your MediaWiki installation:
- This is the directory which contains the "LocalSettings.php" file.