C# SQL代码字符拼接

1. 前提名命空间：using System.Text;
2. StringBuilder Builder = newStringBuilder();//字符串拼接
3. Builder.AppendLine("Declare @fk_guid int set @fk_guid='" + fk_guid + "'");
4. //查申请数
5. Builder.AppendLine("select Guid,a1 MaterialGuid,case when a3 is null then a2 else a3 end Amount into #TT from T_WuPinShenQing_01 where 
6. fk_guid=@fk_guid");
7. //清除已前的占料数据
8. Builder.AppendLine("Delete T_WuPinShenQing_03 where fk_guid=@fk_guid and Status=2");
9. Builder.AppendLine("Drop Table #TT");
10. Console.WriteLine(Builder.ToString());
12. Builder拼结输出结果：
13. Declare @fk_guid int set @fk_guid='" + fk_guid + "'
14. select Guid,a1 MaterialGuid,case when a3 is null then a2 else a3 end Amount into #TT from T_WuPinShenQing_01 where fk_guid=@fk_guid
15. Delete T_WuPinShenQing_03 where fk_guid=@fk_guid and Status=2
16. Drop Table #TT