如何导入大型MS SQL .sql文件？

我使用RedGate SQL数据比较并生成.sql文件,因此我可以在本地计算机上运行它.但问题是该文件超过300mb,这意味着我无法复制和粘贴,因为剪贴板将无法处理它,当我尝试在SQL Server Management Studio中打开该文件时,我收到错误关于文件太大了.

有没有办法运行一个大的.sql文件？该文件基本上包含两个新表的数据.

从命令提示符,启动sqlcmd:

sqlcmd -S  -i C:\.sql 

只需替换SQL框的位置和脚本的名称即可.不要忘记,如果您使用的是SQL实例,则语法为:

sqlcmd -S \instance.

以下是您可以传递sqlcmd的所有参数的列表:

Sqlcmd            [-U login id]          [-P password]
  [-S server]            [-H hostname]          [-E trusted connection]
  [-d use database name] [-l login timeout]     [-t query timeout] 
  [-h headers]           [-s colseparator]      [-w screen width]
  [-a packetsize]        [-e echo input]        [-I Enable Quoted Identifiers]
  [-c cmdend]            [-L[c] list servers[clean output]]
  [-q "cmdline query"]   [-Q "cmdline query" and exit] 
  [-m errorlevel]        [-V severitylevel]     [-W remove trailing spaces]
  [-u unicode output]    [-r[0|1] msgs to stderr]
  [-i inputfile]         [-o outputfile]        [-z new password]
  [-f  | i:[,o:]] [-Z new password and exit] 
  [-k[1|2] remove[replace] control characters]
  [-y variable length type display width]
  [-Y fixed length type display width]
  [-p[1] print statistics[colon format]]
  [-R use client regional setting]
  [-b On error batch abort]
  [-v var = "value"...]  [-A dedicated admin connection]
  [-X[1] disable commands, startup script, environment variables [and exit]]
  [-x disable variable substitution]
  [-? show syntax summary] 

我有完全相同的问题,并且已经挣扎了一段时间,然后终于找到了解决方案,即将-a参数设置sqlcmd为更改其默认数据包大小:

sqlcmd -S [servername] -d [databasename] -i [scriptfilename] -a 32767

class Program
{
    static void Main(string[] args)
    {
        RunScript();
    }

    private static void RunScript()
    {
        My_DataEntities db = new My_DataEntities();

        string line;

        System.IO.StreamReader file =
           new System.IO.StreamReader("c:\\ukpostcodesmssql.sql");
        while ((line = file.ReadLine()) != null)
        {
            db.Database.ExecuteSqlCommand(line);
        }

        file.Close();
    }
}