CREATE TABLE problems: Foreign key references.
From SQLZOO
CREATE TABLE problems: Foreign key references.
schema:scott
A foreign key should refer to a candidate key in some table. This is usually the primary key but may be a field (or list of fields) specified as UNIQUE.
You must have REFERENCE permission on the table being referenced.
DROP TABLE t_stupid
CREATE TABLE t_stupid (a INTEGER ,FOREIGN KEY(a) REFERENCES cia(population))
CREATE TABLE problems: Foreign key references.