【www.bbyears.com--python】
实现代码如下：
ALTER TABLE erp_diff_order ADD COLUMN created_date_tmp int(11) default 0;
UPDATE erp_diff_order SET created_date_tmp=UNIX_TIMESTAMP(created_date);
ALTER TABLE erp_diff_order DROP COLUMN created_date;
ALTER TABLE erp_diff_order ADD COLUMN created_date int(11) default 0;
UPDATE erp_diff_order SET created_date=created_date_tmp;
ALTER TABLE erp_diff_order DROP COLUMN created_date_tmp;