SQL批量插入表类 SqlBulkInsert

ado.net已经有了sqlBulkCopy, 但是那个用xml格式，网络传输数据量太大。

自己实现了一个，传输尽量少的字节。 性能没对比过，有需要的自己拿去测试。

 using System.Data.SqlClient;

 namespace RaywindStudio.DAL {

     /// <summary>
     /// MSSQL批量插入表
     /// </summary>
     public static class SqlBulkInsert {

         private static bool initsql = false;

         /// <summary>
         /// SQL批量插入表 过程
         /// </summary>
         /// <param name="tableName">表名</param>
         /// <param name="fields">字段，逗号分隔</param>
         /// <param name="Values">字段值，逗号分隔</param>
         /// <param name="RowSplit">Values行间分隔符</param>
         /// <param name="RowCount">Values行数</param>
         /// <param name="conn">Sql Connection</param>
         /// <returns></returns>
         public static bool BulkInsert(string tableName, string fields, string Values, string RowSplit, int RowCount,
             SqlConnection conn) {
             initSql(conn);
             string ret= SqlAdo.ExecuteScalar("EXEC [dbo].[pSqlBulkInsert]"
                 + " @tableName=N'" + tableName
                 + "',@fields=N'" + fields
                 + "',@values=N'" + Values
                 + "',@split=N'" + RowSplit
                 + "',@rowCount=" + RowCount.ToString(), conn).ToString();
             return ret == "";
         }
         private static void initSql(SqlConnection sqlconn) {
             if (!initsql) {
                 SqlAdo.ExecuteNonQuery(
                 @"IF not EXISTS (SELECT * FROM dbo.SysObjects
                             WHERE ID = object_id(N'[fGetArrayStr]')
                                 and OBJECTPROPERTY(ID,'IsScalarFunction')=1)
                             begin
                             exec(
                                 'CREATE function fGetArrayStr
                                 (
                                     @str nvarchar(max), --字符串
                                     @split nvarchar(10), --分隔符
                                     @index int --取第几个元素
                                     )
                                 returns nvarchar(4000)
                                 as
                                 begin
                                     declare @location int
                                     declare @start int
                                     declare @next int
                                     declare @seed int
                                     set @str=ltrim(rtrim(@str))
                                     set @start=1
                                     set @next=1
                                     set @seed=len(@split)
                                     set @location=charindex(@split,@str)
                                     while @location<>0 and @index>@next
                                     begin
                                     set @start=@location+@seed
                                     set @location=charindex(@split,@str,@start)
                                     set @next=@next+1
                                     end
                                     if @location =0 set @location =len(@str)+1
                                 return substring(@str,@start,@location-@start)
                                 end')
                             end", sqlconn);

                 SqlAdo.ExecuteNonQuery(
                     @"IF not EXISTS (SELECT * FROM dbo.SysObjects
                         WHERE ID = object_id(N'[pSqlBulkInsert]')
                             and OBJECTPROPERTY(ID,'IsProcedure')=1)
                             begin
                             exec(
                                 'Create proc pSqlBulkInsert
                                 @tableName nvarchar(50),
                                 @fields nvarchar(500),
                                 @values nvarchar(max),
                                 @split nvarchar(5),
                                 @rowCount int
                                 as
                                 declare @next int =1
                                 declare @sql nvarchar(500)=N' Insert Into '+@tableName +N'('+@fields +N') Values('
                                 declare @sqlTmp nvarchar(4000)
                                 Begin tran
                                     while @next<=@rowCount
                                     begin
                                     set @sqlTmp=@sql+dbo.fGetArrayStr(@values,@split,@next)+N')'
                                     Exec(@sqlTmp)
                                     if(@@error<>0)
                                         begin
                                             rollback
                                             return -1
                                         end
                                         set @next=@next+1
                                     end
                                 commit
                                 return 0", sqlconn);

                 initsql = true;
             }
         }
     }
 }