使用循环在mysql中插入100000数据 [英] using loop to insert 100000 data in mysql

问题描述

我想在mysql中使用循环插入data(100000).
当我运行时没有错误，但是数据没有插入到我的表中.

I want to insert data(100000) with a loop in mysql.
When i run no error,but data not insert into my table.

这是我的查询:

DELIMITER //
DECLARE i INT DEFAULT 1;
WHILE i <= 100 DO
  INSERT INTO vouchers VALUES (i,'val1','val2','val3');
  SET i = i + 1;
END WHILE;
DELIMITER ;

结构表:

id int(11)[autoincrement]
data1 varchar(100)
data2 varchar(100)
data3 varchar(100)

如何解决我的查询? 谢谢.

how to fix my query ? thanks..

推荐答案

您可以使用以下笨拙的语句插入100000行，而无需执行任何过程:

You could insert your 100000 rows without a procedure with this unwieldy statement:

INSERT INTO
    vouchers
SELECT
    t.n, 'val1', 'val2', 'val3'
FROM (
    SELECT 
        1 + a.N + b.N * 10 + c.N * 100 + d.N * 1000 + e.N * 10000 AS n
    FROM
        (SELECT 0 AS N UNION ALL SELECT 1 UNION ALL SELECT 2 UNION ALL SELECT 3 UNION ALL SELECT 4 UNION ALL SELECT 5 UNION ALL SELECT 6 UNION ALL SELECT 7 UNION ALL SELECT 8 UNION ALL SELECT 9) a
       ,(SELECT 0 AS N UNION ALL SELECT 1 UNION ALL SELECT 2 UNION ALL SELECT 3 UNION ALL SELECT 4 UNION ALL SELECT 5 UNION ALL SELECT 6 UNION ALL SELECT 7 UNION ALL SELECT 8 UNION ALL SELECT 9) b
       ,(SELECT 0 AS N UNION ALL SELECT 1 UNION ALL SELECT 2 UNION ALL SELECT 3 UNION ALL SELECT 4 UNION ALL SELECT 5 UNION ALL SELECT 6 UNION ALL SELECT 7 UNION ALL SELECT 8 UNION ALL SELECT 9) c
       ,(SELECT 0 AS N UNION ALL SELECT 1 UNION ALL SELECT 2 UNION ALL SELECT 3 UNION ALL SELECT 4 UNION ALL SELECT 5 UNION ALL SELECT 6 UNION ALL SELECT 7 UNION ALL SELECT 8 UNION ALL SELECT 9) d
       ,(SELECT 0 AS N UNION ALL SELECT 1 UNION ALL SELECT 2 UNION ALL SELECT 3 UNION ALL SELECT 4 UNION ALL SELECT 5 UNION ALL SELECT 6 UNION ALL SELECT 7 UNION ALL SELECT 8 UNION ALL SELECT 9) e
    ORDER BY n
) t;   

要使用自动递增功能，请将t.n替换为NULL:

To use the autoincrement feature replace the t.n by NULL:

INSERT INTO
    vouchers
SELECT
    NULL, 'val1', 'val2', 'val3'
FROM (
    SELECT 
        1 + a.N + b.N * 10 + c.N * 100 + d.N * 1000 + e.N * 10000 AS n
    FROM
        (SELECT 0 AS N UNION ALL SELECT 1 UNION ALL SELECT 2 UNION ALL SELECT 3 UNION ALL SELECT 4 UNION ALL SELECT 5 UNION ALL SELECT 6 UNION ALL SELECT 7 UNION ALL SELECT 8 UNION ALL SELECT 9) a
       ,(SELECT 0 AS N UNION ALL SELECT 1 UNION ALL SELECT 2 UNION ALL SELECT 3 UNION ALL SELECT 4 UNION ALL SELECT 5 UNION ALL SELECT 6 UNION ALL SELECT 7 UNION ALL SELECT 8 UNION ALL SELECT 9) b
       ,(SELECT 0 AS N UNION ALL SELECT 1 UNION ALL SELECT 2 UNION ALL SELECT 3 UNION ALL SELECT 4 UNION ALL SELECT 5 UNION ALL SELECT 6 UNION ALL SELECT 7 UNION ALL SELECT 8 UNION ALL SELECT 9) c
       ,(SELECT 0 AS N UNION ALL SELECT 1 UNION ALL SELECT 2 UNION ALL SELECT 3 UNION ALL SELECT 4 UNION ALL SELECT 5 UNION ALL SELECT 6 UNION ALL SELECT 7 UNION ALL SELECT 8 UNION ALL SELECT 9) d
       ,(SELECT 0 AS N UNION ALL SELECT 1 UNION ALL SELECT 2 UNION ALL SELECT 3 UNION ALL SELECT 4 UNION ALL SELECT 5 UNION ALL SELECT 6 UNION ALL SELECT 7 UNION ALL SELECT 8 UNION ALL SELECT 9) e
    ORDER BY n
) t;   

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