mysql儲存過程小例子

drop procedure if exists customview_logs_pro;

delimiter //
create procedure customview_logs_pro(in counts bigint)
begin
declare i bigint default 1;
declare total_count int default 1;
declare timestr varchar(19);
declare from_source_id varchar(64);
declare daytime bigint;
declare longtime bigint default 0;
declare answer_rand int;
declare answer_id int;
declare answer_name varchar(64);
declare input_model int;
declare input_rand int;
while i<=counts do
set daytime = (select round(rand()*30)) + 1;
set timestr=concat('2017-04-',daytime,' 20:00:00');
set longtime=longtime+i;
set answer_rand = (select round(rand()*5)) + 1;
set input_rand = (select round(rand()*4)) + 1;
if input_rand=1
then
set input_model = 0;
else
set input_model = 1;
end if;
if answer_rand=1
then
set answer_id = 1;
set answer_name = 'xiaoxiao';
elseif answer_rand=2
then
set answer_id = 3;
set answer_name = 'hasika';
elseif answer_rand=3
then
set answer_id = 4;
set answer_name = 'tianlalu';
elseif answer_rand=4
then 
set answer_id = 6;
set answer_name = 'shuren';
else 
set answer_id = 8;
set answer_name = 'lianjin';
end if;
set from_source_id=concat('userid_',(select round(rand()*1000000)),'_',longtime);
insert into table_name(id,from_source_id) values(i,191585688,2,from_source_id);
if mod(i,10000)=0 then
commit;
end if;
set i = i + 1;
end while;
commit;
endcall service_logs_pro(10000000);

如果不需要將插入千萬級資料的操作寫在乙個事務中，那麼就需要如上所示，每隔10000條資料提交一次，否則會報「事務日誌已滿」的錯誤，導致無法完成插入操作；

如果需要寫在乙個事務中，那麼可以考慮將事務日誌的空間擴充套件。

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