Question

我在将字符串（12 \ 11 \ 2013格式）转换为动态sql中的Datetime（'YYYY-MM-DD'格式）时遇到问题。

您可以在下面看到相关示例和结果：声明@dbPrefix varchar（2）， @cob varchar（20）， @Sql varchar（200）声明@m_cobMinusOne datetime，

 @m_cobEOM varchar(20),
 @m_cobEOY varchar(20),
 @m_cobFUN varchar(20)
 set @cob = '12/11/2013' 
set @dbPrefix='q_'
set @m_cobMinusOne =  convert(varchar(20),@m_cobMinusOne,103)
set @m_cobEOM =  convert(varchar(20),@m_cobMinusOne,103)

exec(N'select ' + @m_cobMinusOne + '= bdh_prev_bus_d ,' + @m_cobEOM + '= bdh_prev_mo_end_d 
from ' +@dbPrefix+'dbbdm005..bdh_bus_date_ref  where bdh_bus_d = ''' + @cob + '''')

Answer 1

看看你可以做这样的事情......

declare 
  @dbPrefix      varchar(2),
  @cob           varchar(20) ,
  @m_cobMinusOne datetime, 
  @m_cobEOM      varchar(20),
  @SqlQuery      NVARCHAR(MAX);

set @cob           = '20131211'; 
set @dbPrefix      = 'q_';
set @m_cobMinusOne =  convert(varchar(20),@m_cobMinusOne,103);
set @m_cobEOM      =  convert(varchar(20),@m_cobMinusOne,103);

SET @SqlQuery =  N'select   @m_cobMinusOne = bdh_prev_bus_d ,  @m_cobEOM = bdh_prev_mo_end_d ' +
                 N'from ' + QUOTENAME(@dbPrefix+'dbbdm005') +'..bdh_bus_date_ref  ' +
                 N'where bdh_bus_d = @cob';

EXECUTE sp_executesql @SqlQuery                
                     ,N'@m_cobMinusOne VARCHAR(20) OUTPUT, @m_cobEOM VARCHAR(20) OUTPUT, @cob VARCHAR(20)'
                     ,@m_cobMinusOne OUTPUT
                     ,@m_cobEOM      OUTPUT
                     ,@cob

创建动态sql以替换db前缀但获取错误错误消息时出错

1 个答案: