alter table ACT_GE_BYTEARRAY drop constraint ACT_FK_BYTEARR_DEPL;
alter table ACT_RU_EXECUTION drop constraint ACT_FK_EXE_PROCDEF;
alter table ACT_RU_EXECUTION drop constraint ACT_FK_EXE_PARENT;
alter table ACT_RU_EXECUTION drop constraint ACT_FK_EXE_SUPER;  
alter table ACT_RU_IDENTITYLINK drop constraint ACT_FK_TSKASS_TASK;
alter table ACT_RU_IDENTITYLINK drop constraint ACT_FK_ATHRZ_PROCEDEF;
alter table ACT_RU_TASK drop constraint ACT_FK_TASK_EXE;
alter table ACT_RU_TASK drop constraint ACT_FK_TASK_PROCINST;
alter table ACT_RU_TASK drop constraint ACT_FK_TASK_PROCDEF;
alter table ACT_RU_VARIABLE drop constraint ACT_FK_VAR_EXE;
alter table ACT_RU_VARIABLE drop constraint ACT_FK_VAR_PROCINST;    
alter table ACT_RU_VARIABLE drop constraint ACT_FK_VAR_BYTEARRAY;
alter table ACT_RU_JOB drop constraint ACT_FK_JOB_EXCEPTION;
alter table ACT_RU_EVENT_SUBSCR drop constraint ACT_FK_EVENT_EXEC;
alter table ACT_RE_MODEL drop constraint ACT_FK_MODEL_SOURCE;
alter table ACT_RE_MODEL drop constraint ACT_FK_MODEL_SOURCE_EXTRA;

drop table ACT_GE_PROPERTY;
drop table ACT_GE_BYTEARRAY;
drop table ACT_RE_MODEL;
drop table ACT_RE_DEPLOYMENT;
drop table ACT_RE_PROCDEF;
drop table ACT_RU_IDENTITYLINK;
drop table ACT_RU_VARIABLE;
drop table ACT_RU_TASK;
drop table ACT_RU_EXECUTION;
drop table ACT_RU_JOB;
drop table ACT_RU_EVENT_SUBSCR;

drop table ACT_HI_PROCINST;
drop table ACT_HI_ACTINST;
drop table ACT_HI_VARINST;
drop table ACT_HI_TASKINST;
drop table ACT_HI_DETAIL;
drop table ACT_HI_COMMENT;
drop table ACT_HI_ATTACHMENT;

drop table ACT_ID_INFO;
drop table ACT_ID_MEMBERSHIP;
drop table ACT_ID_GROUP;
drop table ACT_ID_USER;