Create Table Error - Oracle SQL

问题

I need help with this it keeps giving the same error in Oracle SQL Developer.

Error starting at line : 15 in command -

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)
)

Error at Command Line : 21 Column : 34 Error report - SQL Error: ORA-00906: missing left parenthesis 00906. 00000 - "missing left parenthesis" *Cause:
*Action:

回答1:

You appear to be trying to declare a foreign key inline and have the syntax incorrect, you want:

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)
)

Also, you do not need a NOT NULL constraint on a PRIMARY KEY column.

Alternatively you can declare the constraint as:

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)
)

来源：https://stackoverflow.com/questions/46857105/create-table-error-oracle-sql