set @i = -1;
set @sql = repeat(" select 1 union all",-datediff('2021-01-01','2030-12-31')+1);
set @sql = left(@sql,length(@sql)-length(" union all"));
set @sql = concat("select date_add('2021-01-01',interval @i:=@i+1 day) as date from (",@sql,") as tmp");
prepare stmt from @sql;
execute stmt
MYSQL生成两个日期之间的所有日期数据
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转载自blog.csdn.net/u011702993/article/details/78432503
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