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db_pvfc9_std.Customer_t; 时间间隔 DDL和DML支持将数据类型转换为时间间隔。用户可在VIEW、MERGE和INSERT子查询和SELECT内进行转换。 输入:转换为时间间隔 1 SELECT TIME '06:00:00.00' HOUR TO SECOND;
创建GDS外表并导入TPC-DS数据 本文介绍如何通过GDS外表导入TPC-DS 1000x数据,表1列出了TPC-DS测试数据集中的表数据行数。 TPC-H请跳过本章节。 表数据行数 表1 TPC-DS 序号 表名 行数 1 customer_address 6,000,000
use the whole GNU operating system, as well as its variant, the GNU/Linux operating system. Although the Lesser General Public License is Less
use the whole GNU operating system, as well as its variant, the GNU/Linux operating system. Although the Lesser General Public License is Less