百万的数据要怎么插入数据库?
表中有百万条左右的数据,一次姓取出插入,好像不起作用,只能插入几千条程序就不运行了,能不能读取一条,插入一条呢?要怎么操作?
回复讨论(解决方案)
在控制台中
insert into newtbl select * from oldtab
这种数据搬迁的工作又不是经常做,时间长点就等一下呗
我是用insert into 是从一个表取出插入另一个表,好像运行到两三千条,程序就停止了。
在控制台里运行的吗?
不是控制台,是php文件里,因为是不同数据库。已经将max_execution_time 设置为0
贴出你的代码!
程序虽然504 Gateway Time-out,担数据好像还是在插入呢,只要以插入数据库就行了。先不管了。
贴出你的代码!
代码:
while($mssql_row = mssql_fetch_array($rs))
{
$fTMID = $mssql_row[0];
$sql = "insert into Flow01(fZTDM,) values ('$fZTDM',)";
mysql_query('set names gbk');
mysql_query($sql);
}
要怎么进行优化?
mysql_query('set names gbk');while($mssql_row = mssql_fetch_array($rs)) { $fTMID = $mssql_row[0]; $sql = "insert into Flow01(fZTDM,) values ('$fZTDM',)"; mysql_query($sql); echo ' ';}
基本无优化的余地
页面超时了,解决页面超时就可以了,我前面采用的方法是,执行1000条 然后再跳转到这个页面继续执行
直到全部执行完成
嗯,还是谢谢你的热情回答。

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