如何代码创建临时表？

// 创建临时表

            string tempTbName = AppServiceContext.DBService.CreateTemporaryTableName(this.Context);

            string strsql = "/*dialect*/create table " + tempTbName + " as select FRECINVBILLNO,FIVCODE,FBILLTYPENAME,FBILLNO from 临时表的模型表 where 1 <> 1";

// 临时表的模型表需要在BOS内绘制一个表模型，实际作用不为存储数据

            DBServiceHelper.Execute(this.Context, strsql);

            Dictionary<string, DbType> columnInfos = new Dictionary<string, DbType>();

            columnInfos.Add("字段1", DbType.String);

            columnInfos.Add("字段2", DbType.String);

            BulkInsertAdapter bulkInsertAdapter = new BulkInsertAdapter(base.Context, columnInfos, tempTbName, recDataTb.Rows.Count);

// recDataTb为数据 (DataTable)

            foreach (DataRow dc in recDataTb.