Databases Theory and Applications : 30th Australasian Database Conference, ADC 2019, Sydney, NSW, Australia, January 29 – February 1, 2019, Proceedings - Chang, Lijun (Herausgeber); Gan, Junhao (Herausgeber); Cao, Xin (Herausgeber) (Information Systems and Applications, incl. Internet/Web, and HCI, 2019)