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var ¹¹½¨ÄäÃûÀàÐÍ1 = from c in ctx.Customers
                      select new
                      {
                          ¹«Ë¾Ãû = c.CompanyName,
                          µØÖ· = c.Address
                      };
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SELECT [t0].[CompanyName], [t0].[Address]
from [dbo].[Customers] AS [t0]      
 
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var ¹¹½¨ÄäÃûÀàÐÍ2 = from emp in ctx.Employees
                      select new
                      {
                          ÐÕÃû = emp.LastName + emp.FirstName,
                          ¹ÍÓÃÄê = emp.HireDate.Value.Year
                      };
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CREATE DATABASE database-name
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drop database dbname
3¡¢ËµÃ÷£º±¸·Ýsql server
--- ´´½¨ ±¸·ÝÊý¾ÝµÄ device
USE master
EXEC sp_addumpdevice 'disk', 'testBack', 'c:\mssql7backup\MyNwind_1.dat'
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BACKUP DATABASE pubs TO testBack ......

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ms sql : xp_cmdshell

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  use master
exec  xp_cmdshell 'osql /S musqlserver /U sa /P mypwd /d haodb /Q "select top 10 * from trandetail"  /o C:\my1.xls'
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