I am trying to VIEW 4 columns from 2 different tables I have already created in Oracle Live SQL - sql

Question

I want to use the VIEW command to display these 4 columns in one single schema. I have tried making a single VIEW with the first 3 columns, because they are from the the same table. Adding the one other column is where I'm struggling. I have tried the ALTER function but a VIEW schema doesn't seem to have the same edit privileges as a table would. I hope that makes sense.
create table PATIENTINFO (
PatientID number not null,
FirstName varchar2(50) not null,
LastName varchar2(50) not null,
Address varchar2(50),
City varchar2(50),
State varchar2(50),
ZipCode number(5),
Phone number(10) not null ,
Email varchar2(50),
MemberID number not null,
constraint pk_departments primary key (PatientID)
)
create table LABORDER (
LabOrderNumber number not null,
OrDate date not null,
ReqBloodTest varchar2(15) not null,
Reason varchar(50),
PatientID number not null,
constraint pk_laborder primary key (LabOrderNumber),
constraint fk_laborder_patientid foreign key (PatientID)
references PATIENTINFO (PatientID)
)
CREATE VIEW PatientBlood AS
SELECT FirstName, LastName, PatientID
FROM PATIENTINFO

Answer 1

Write the query you want and then create a view out of it. I started by writing the query below and then prefixed it with CREATE OR REPLACE VIEW. The example below has some randomly selected columns, change it to whatever columns you need. I chose to name my columns in the view definition, you can omit that but also do a million other things as stated in the docs
Side note: don't use mixed case for identifiers like column names/table names. It is confusing. In your case it didn't matter since you didn't use quotes, so they're case insensitive and the view below will work even though the identifiers are all lower case.
CREATE OR REPLACE VIEW laborder_v (
labordernumber,
patientid,
lastname
) AS
SELECT o.labordernumber,
p.patientid,
p.lastname
FROM laborder o
JOIN patientinfo p ON o.patientid = p.patientid;