The request in this example specifies a primary key only, so column_2 is mapped to a UPI. In this case the PRIMARY index cannot be null.
CREATE TABLE good_6 ( column_1 INTEGER, column_2 INTEGER NOT NULL PRIMARY KEY);
The request in this example specifies a primary key only, so column_2 is mapped to a UPI. In this case the PRIMARY index cannot be null.
CREATE TABLE good_6 ( column_1 INTEGER, column_2 INTEGER NOT NULL PRIMARY KEY);