/*
存储过程名称：导出数据到Excel
功能描述：导出数据到Excel

EXEC ExportToExcel @server = '.',
                   @uname = 'sa',
                   @pwd = '',
                   @QueryText = 'SELECT * FROM dldata..bbbbbb',
                   @filename = 'd:\ImportToExcel.xls'
*/

IF OBJECT_ID('ExportToExcel') IS NOT NULL DROP PROC ExportToExcel
GO

CREATE PROCEDURE ExportToExcel (
  @server sysname = null,
  @uname sysname = null,
  @pwd sysname = null,
  @QueryText varchar(200) = null,
  @filename varchar(200) = 'd:\ImportToExcel.xls'
)
AS
DECLARE @SQLServer int, --SQLDMO.SQLServer对象
        @QueryResults int, --QueryResults对象
        @CurrentResultSet int,
        @object int, --Excel.Application对象
        @WorkBooks int,
        @WorkBook int,
        @Range int,
        @hr int,
        @Columns int,
        @Rows int,
        @indColumn int,
        @indRow int,
        @off_Column int,
        @off_Row int,
        @code_str varchar(100),
        @result_str varchar(255)

IF @QueryText IS NULL
BEGIN
   PRINT 'Set the query string'
   RETURN
END

--设置服务器名为本地服务器(@@servername返回运行SQL Server的本地服务器名称)
IF @server IS NULL SELECT @server = @@servername

--设置用户名为当前系统用户名(使用SYSTEM_USER返回当前系统用户名)
IF @uname IS NULL SELECT @uname = SYSTEM_USER

SET NOCOUNT ON

--创建SQLDMO.SQLServer对象
EXEC @hr = sp_OACreate 'SQLDMO.SQLServer', @SQLServer OUT
IF @hr <> 0
BEGIN
   PRINT 'error create SQLDMO.SQLServer'
   RETURN
END

--连接到SQL Server系统
IF @pwd IS NULL
BEGIN
   EXEC @hr = sp_OAMethod @SQLServer, 'Connect', null, @server, @uname
   IF @hr <> 0
   BEGIN
      PRINT 'error Connect'
      RETURN
   END
END
ELSE
BEGIN
   EXEC @hr = sp_OAMethod @SQLServer, 'Connect', null, @server, @uname, @pwd
   IF @hr <> 0
   BEGIN
      PRINT 'error Connect'
      RETURN
   END
END

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