0
create table patient (
p_code number(5) primary key,
p_name varchar2(50) not null,
DOB date(15) not null,
p_phone number(30) default null,
st varchar2(20) not null,
city varchar2(15) not null,
state varchar2(15) default null,
zip_code number(10) not null,
w_code number(5) references ward (w_code)
)
它給了我ORA-00907: missing right parenthesis
如何使默認爲空在Oracle
默認情況下它的null,你不需要說缺省爲null。 – SMA 2014-12-27 13:48:12