Getting "missing right parenthesis' error SQL--Cannot find the issue - sql

Question

I am trying to create four tables below. My first two tables run correctly, but my last two error out with the same error message:
ORA-00907: missing right parenthesis
ORA-06512: at "SYS.WWV_DBMS_SQL_APEX_200200", line 626
ORA-06512: at "SYS.DBMS_SYS_SQL", line 1658
ORA-06512: at "SYS.WWV_DBMS_SQL_APEX_200200", line 612
ORA-06512: at "APEX_200200.WWV_FLOW_DYNAMIC_EXEC", line 1749
I cannot figure out what is wrong with this code. I recognize that it's probably a syntax error somewhere, but I cannot find it. What should I do to fix this error?
create table item
(
itemID number(5) constraint CAMP_itemID_pk primary key,
itemDescription varchar2(100),
cleaned varchar2(1),
stock number(5)
);
create table people
(
peopleID number(10) constraint CAMP_peopleID_pk primary key,
firstName varchar2(20),
lastName varchar2(20),
phone number(10),
discount varchar2(20)
);
create table checkout
(
checkoutID constraint CAMP_checkoutID_pk primary key number(10),
peopleID number(10),
checkoutDate date(),
returnDate date(),
saleTotal number(10),
returned varchar(1),
constraint CAMP_peopleID_fk foreign key (peopleID) references people(peopleID)
);
create table checkoutDetail
(
orderDetailID constraint CAMP_orderDetailID_pk primary key number(10),
checkoutID number(10),
itemID,
quantity number(5),
constraint CAMP_checkoutID_fk foreign key (checkoutID) references checkout(checkoutID),
constraint CAMP_itemID_fk foreign key (itemID) references item(itemID)
);

Answer 1

The syntax is to define a column with inline constraints is:
COLUMN_NAME DATATYPE CONTRAINTS
but you have the data type after the constraints.
Date has no precision (and is not a function) so should not have braces after it.
itemID needs a data type.
Like this:
create table checkout (
checkoutID number(10) constraint CAMP_checkoutID_pk primary key,
peopleID number(10),
checkoutDate date,
returnDate date,
saleTotal number(10),
returned varchar(1),
constraint CAMP_peopleID_fk foreign key (peopleID) references people(peopleID)
);
create table checkoutDetail (
orderDetailID number(10) constraint CAMP_orderDetailID_pk primary key,
checkoutID number(10),
itemID number(5),
quantity number(5),
constraint CAMP_checkoutID_fk foreign key (checkoutID) references checkout(checkoutID),
constraint CAMP_itemID_fk foreign key (itemID) references item(itemID)
);
db<>fiddle here