Esempio n. 1
0
        /// <summary>
        /// 构建一个用于嵌套查询的子查询 [与Select(...)方法的构建方式一致]。
        /// </summary>
        /// <param name="fields">要查询的字段列表。</param>
        /// <returns></returns>
        public SelectBlock Nested(params IDescription[] fields)
        {
            SelectBlock sblock = new SelectBlock();

            foreach (IDescription des in fields)
            {
                sblock.AddElement(des);
            }
            return(sblock);
        }
Esempio n. 2
0
        /// <summary>
        /// 开始构建 SELECT 命令。
        /// </summary>
        /// <param name="fields">要查询的字段列表(可以为字段信息入表达式对象)。</param>
        /// <returns></returns>
        public SelectBlock Select(params IDescription[] fields)
        {
            if (IsParsed)
            {
                ResetCommandBuilder();
            }

            SelectBlock sb = new SelectBlock();

            foreach (IDescription des in fields)
            {
                sb.AddElement(des);
            }
            CommandDescription = sb;
            return(sb);
        }