MySQL存储过程跨数据库操作同步数据

BEGIN
DECLARE deliverstatus,smlen,datacoding,total int;
DECLARE tsid,srcaddr,destaddr,servicetype,smcontent,linkid,sequenceno,recvtime,state,resulttime,extcode,applicationid varchar(50) ;

set total = 0;

while total < 20 do
set tsid='';
select deliver_status,sm_len,data_coding,to_sp_id,src_addr,dest_addr,service_type,sm_content,link_id,sequence_no,recv_time,state,result_time,extcode_,applicationid_  into  deliverstatus,smlen,datacoding,tsid,srcaddr,destaddr,servicetype,smcontent,linkid,sequenceno,recvtime,state,resulttime,extcode,applicationid
from tlc_to_sp where applicationid_ = 'sms_db' limit 0,1;
if tsid <> '' then
if resulttime <> ''  and recvtime  <> '' then
insert into kingterdb.sms_inbox(MASSMSID,SOURCEADDR,RECEIVETIME,MESSAGECONTENT,REQUESTTIME,extcode,applicationid) values(tsid,srcaddr,resulttime,smcontent,recvtime,extcode,applicationid);
elseif resulttime = '' then
insert into kingterdb.sms_inbox(MASSMSID,SOURCEADDR,RECEIVETIME,MESSAGECONTENT,REQUESTTIME,extcode,applicationid) values(tsid,srcaddr,now(),smcontent,recvtime,extcode,applicationid);
elseif recvtime = '' then
insert into kingterdb.sms_inbox(MASSMSID,SOURCEADDR,RECEIVETIME,MESSAGECONTENT,REQUESTTIME,extcode,applicationid) values(tsid,srcaddr,resulttime,smcontent,now(),extcode,applicationid);
else
insert into kingterdb.sms_inbox(MASSMSID,SOURCEADDR,RECEIVETIME,MESSAGECONTENT,REQUESTTIME,extcode,applicationid) values(tsid,srcaddr,now(),smcontent,now(),extcode,applicationid);
end if;
insert into tlc_to_sp_his(deliver_status,sm_len,data_coding,to_sp_id,src_addr,dest_addr,service_type,sm_content,link_id,sequence_no,recv_time,state,result_time,extcode_,applicationid_) values(deliverstatus,smlen,datacoding,tsid,srcaddr,destaddr,servicetype,smcontent,linkid,sequenceno,recvtime,state,resulttime,extcode,applicationid);
end if;

delete from tlc_to_sp where to_sp_id in(select to_sp_id from tlc_to_sp_his where applicationid_ = 'sms_db');

set total = total + 1;
end while;
END