按照顺序清空Activity表的所有测试数据
delete from act_ge_bytearray; delete from act_ge_property; delete from act_hi_actinst; delete from act_hi_attachment; delete from act_hi_comment; delete from act_hi_detail; delete from act_hi_identitylink; delete from act_hi_procinst; delete from act_hi_taskinst; delete from act_hi_varinst; delete from act_id_group; delete from act_id_info; delete from act_id_membership; delete from act_id_user; delete from act_re_deployment; delete from act_re_model; delete from act_ru_event_subscr; delete from act_ru_identitylink; delete from act_ru_job; delete from act_ru_task; delete from act_ru_variable; delete from act_ru_execution; delete from act_re_procdef;