摘要：declare @f float;declare @i int;set @f = 123.789;--set @i = convert(int, @f)--set @i = cast(@f as int)--set @i = ROUND(@f, 0, 1);//直接截取set @i = ROUND(@f, 0); //四舍五入select @i 阅读全文

摘要：就用到两条.net自带的获取数据库信息的语句OleDbConnection con = new OleDbConnection(connection); // OleDB数据库连接实例// 获取数据库中表的相关信息DataTable dt = con.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new Object[] { null, null, nul... 阅读全文