...
Timestamp lastSuccess = new GcDbAccess().sql("select max(ended_time) from grouper_loader_log where job_name = ?")
.addBindVar("CHANGE_LOG_consumer_recentMemberships").select(Timestamp.class);
From a database external system
Integer theOne = new GcDbAccess().connectionName("externalSystemConfigId").sql("select 1 from dual")
.select(Integer.class);