HANA studio error SAP DBTech JDBC: [463]

Hi,

I'm using SAP HANA Studio version 2.3.29 together with HANA 2.00.021.

I want to execute HANA Mini Checks delivered by SAP note 1969700:

It fails with the following error:

Such SQL worked some weeks ago...

If I execute the latest version of this SQL (version of Dec. 20, 2017), it doesn't work neither:

Solution ?

Thanks,

Christophe