drop table if exists ACT_HI_PROCINST;
drop table if exists ACT_HI_ACTINST;
drop table if exists ACT_HI_VARINST;
drop table if exists ACT_HI_TASKINST;
drop table if exists ACT_HI_DETAIL;
drop table if exists ACT_HI_COMMENT;
drop table if exists ACT_HI_ATTACHMENT;
drop table if exists ACT_HI_IDENTITYLINK;
 