Question

我需要帮助，它在Oracle SQL Developer中不断给出相同的错误。

从命令行中的第15行开始出错 -

CREATE TABLE B_BOOKING (
    booking_number int NOT NULL PRIMARY KEY,
    date_booked date,
    performance_order int,
    base_pay int,
    band_number int,
    concert_number int, FOREIGN KEY REFERENCES B_CONCERT(concert_number)
)

命令行错误：21列：34错误报告 - SQL错误：   ORA-00906：缺少左括号   00906. 00000 - ＆＃34;缺少左括号＆＃34;   *原因：
  *操作：

Answer 1

您似乎试图内联声明外键并且语法不正确，您想要：

CREATE TABLE B_BOOKING (
    booking_number int PRIMARY KEY,
    date_booked date,
    performance_order int,
    base_pay int,
    band_number int,
    concert_number int REFERENCES B_CONCERT(concert_number)
)

此外，NOT NULL列不需要PRIMARY KEY约束。

或者，您可以将约束声明为：

CREATE TABLE B_BOOKING (
    booking_number int PRIMARY KEY,
    date_booked date,
    performance_order int,
    base_pay int,
    band_number int,
    concert_number int,
    CONSTRAINT constraint_name FOREIGN KEY ( concert_number )
                               REFERENCES B_CONCERT(concert_number)
)

创建表错误 - Oracle SQL

1 个答案: