1 --生成随机表 2 --CREATE table scott.One_Million as ( 3 SELECT ROWNUM AS T_ID, 4 TRUNC(DBMS_RANDOM.VALUE(0, 100)) 年龄, 5 DECODE(DBMS_RANDOM.STRING(0, 1), 6 ‘A‘, 7 ‘张‘, 8 ‘B‘, 9 ‘周‘, 10 ‘C‘, 11 ‘李‘, 12 ‘D‘, 13 ‘赵‘, 14 ‘E‘, 15 ‘安‘, 16 ‘F‘, 17 ‘王小‘, 18 ‘小‘) || 19 DECODE(DBMS_RANDOM.STRING(0, 1), 20 ‘A‘, 21 ‘娜‘, 22 ‘B‘, 23 ‘娟‘, 24 ‘C‘, 25 ‘梅‘, 26 ‘D‘, 27 ‘美‘, 28 ‘E‘,‘鹏‘, 29 (DBMS_RANDOM.STRING(1,1))) AS 姓名, 30 to_char(sysdate-TRUNC(DBMS_RANDOM.VALUE(1,1000000000))/24/60/60,‘yyyy-mm-dd hh24:mi:ss‘) 生日, 31 trunc(DBMS_RANDOM.VALUE(100000000,900000000)) 编号, 32 DBMS_RANDOM.STRING(1,25) 字符串 33 FROM DUAL 34 CONNECT BY LEVEL <= 1000000 35 36 --)
时间: 2024-08-26 14:50:51