sql - 如何从 SELECT AS 在 Oracle 11g R2 中创建表并按范围列表对表进行分区？

Question

我正在尝试从名为 Titles 的现有表创建一个名为 Titles2 的新表。我必须使用 SELECT AS 语句从 Titles 创建 Titles2 中的列。我还必须按 RANGE 然后按 LIST 对 Titles2 进行分区。

用于创建标题的代码:

SQL> CREATE TABLE Titles
  2    (
  3    Title_id         char(3)     ,
  4    Title            varchar2(40),
  5    Genre            varchar2(10),
  6    Pages            number      ,
  7    Price            number(5,2) ,
  8    Sales            number      ,
  9    Pub_id           char(3)     ,
 10    Pubdate          date        ,
 11    Advance          number(9,2) ,
 12    Royalty_rate     number(5,2) ,
 13    CONSTRAINT Titles_pk PRIMARY KEY (title_id),
 14    CONSTRAINT Titles_Publishers_fk FOREIGN KEY (Pub_id)
 15                             REFERENCES Publishers (pub_id)
 16    )
 17    PARTITION BY RANGE (Pubdate) (
 18    PARTITION P1 VALUES LESS THAN (TO_DATE('01-JAN-1995', 'DD-MON-YYYY')) TABLESPACE TSLab8ben1,
 19    PARTITION P2 VALUES LESS THAN (TO_DATE('01-JAN-2000', 'DD-MON-YYYY')) TABLESPACE TSLab8ben2,
 20    PARTITION P3 VALUES LESS THAN (MAXVALUE) TABLESPACE TSLab8ben3
 21    );

Table created.

以下代码是我迄今为止从 Titles 创建 Titles2 表的代码:

CREATE TABLE Titles2 AS
SELECT Title_id AS TID, Title, Genre, Sales, (Sales * Price) AS Revenue, Pub_id AS P#
FROM Titles
PARTITION BY RANGE (Revenue)
SUBPARTITION BY LIST (Genre)
SUBPARTITION TEMPLATE (
SUBPARTITION G1 VALUES ('history', 'biography'),
SUBPARTITION G2 VALUES ('computer','children'),
SUBPARTITION G3 VALUES (DEFAULT)) (
PARTITION P1 VALUES LESS THAN (100000),
PARTITION P2 VALUES LESS THAN (500000),
PARTITION P3 VALUES LESS THAN (1000000),
PARTITION P4 VALUES LESS THAN (MAXVALUE));

但是，创建 Titles2 的代码不会执行。有人能帮我执行 Titles2 代码吗？谢谢!

Answer 1

就像使用 Titles2 一样，仅使用 create table 语句(不是 CTAS)和适当的分区创建表 Titles 。然后使用 insert 语句用来自 Titles2 的数据填充 Titles

insert into Titles2 
  select <<columns>>
    from Titles  

或者您可以按如下方式重写最后的 create table 语句:

CREATE TABLE Titles2
  PARTITION BY RANGE (Revenue)(
    SUBPARTITION BY LIST (Genre)
    SUBPARTITION TEMPLATE (
    SUBPARTITION G1 VALUES ('history', 'biography'),
    SUBPARTITION G2 VALUES ('computer','children'),
    SUBPARTITION G3 VALUES (DEFAULT)) (
    PARTITION P1 VALUES LESS THAN (100000),
    PARTITION P2 VALUES LESS THAN (500000),
    PARTITION P3 VALUES LESS THAN (1000000),
    PARTITION P4 VALUES LESS THAN (MAXVALUE))
   ) AS
SELECT Title_id AS TID
     , Title
     , Genre
     , Sales
     , (Sales * Price) AS Revenue
     , Pub_id AS P#
FROM Titles