Activity清空表数据

   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;