How to use while to batch insert data in mysql storage
while '条件' do 循环体语句; end while;
drop procedure if exists test_insert;
delimiter $$
create procedure test_insert(n int)
begin
declare v int default 0;
set AUTOCOMMIT = 0;
while v < n
do
insert into test(second_key, text, field_4,status, create_date)
values ((v*10),
concat('t',v),
substring(md5(rand()), 1, 10),
'good',
adddate('1970-01-01', rand(v) * 10000));
set v = v + 1;
end while;
set AUTOCOMMIT = 1;
end$$
delimiter ;
Copy after login
View and delete stored procedures:drop procedure if exists test_insert; delimiter $$ create procedure test_insert(n int) begin declare v int default 0; set AUTOCOMMIT = 0; while v < n do insert into test(second_key, text, field_4,status, create_date) values ((v*10), concat('t',v), substring(md5(rand()), 1, 10), 'good', adddate('1970-01-01', rand(v) * 10000)); set v = v + 1; end while; set AUTOCOMMIT = 1; end$$ delimiter ;
mysql> show procedure status like 'test_insert'; mysql> show create procedure test_insert\G; mysql> drop procedure if exists test_insert;
CREATE TABLE test ( id INT NOT NULL AUTO_INCREMENT, second_key INT, text VARCHAR(20), field_4 VARCHAR(20), status VARCHAR(10), create_date date, PRIMARY KEY (id), KEY idx_second_key (second_key) ) Engine=InnoDB CHARSET=utf8;
mysql> call test_insert(1000000); Query OK, 0 rows affected (31.86 sec)
drop procedure if exists test_insert;
delimiter $$
create procedure test_insert(n int)
begin
declare v int default 0;
while v < n
do
insert into test(second_key, text, field_4,status, create_date)
values ((v*10),
concat('t',v),
substring(md5(rand()), 1, 10),
'good',
adddate('1970-01-01', rand(v) * 10000));
set v = v + 1;
end while;
end$$
delimiter ;
Copy after login
Insert 10,000 pieces of datadrop procedure if exists test_insert; delimiter $$ create procedure test_insert(n int) begin declare v int default 0; while v < n do insert into test(second_key, text, field_4,status, create_date) values ((v*10), concat('t',v), substring(md5(rand()), 1, 10), 'good', adddate('1970-01-01', rand(v) * 10000)); set v = v + 1; end while; end$$ delimiter ;
mysql> call test_insert(10000); Query OK, 1 row affected (1 min 8.52 sec)
mysql> select count(*) from test.test; +----------+ | count(*) | +----------+ | 1428 | +----------+ 1 row in set (0.00 sec) mysql> select count(*) from test.test; +----------+ | count(*) | +----------+ | 1598 | +----------+ 1 row in set (0.00 sec) mysql> select count(*) from test.test; +----------+ | count(*) | +----------+ | 1721 | +----------+ 1 row in set (0.00 sec) mysql> select count(*) from test.test; +----------+ | count(*) | +----------+ | 1983 | +----------+ 1 row in set (0.00 sec)
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