Empty strings are stored as null in Oracle,
so a column with NotNull can not have an empty string as default
Signed-off-by: Joas Schilling <coding@schilljs.com>
* Order the imports
* No leading slash on imports
* Empty line before namespace
* One line per import
* Empty after imports
* Emmpty line at bottom of file
Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>