I am looking to create a table that will only accept certain values in my database and I came across the default values option but I am sure that this won't be something that would work but just wanted to clarify.
As far as I am aware the default option, would allow you to store a value for a row unless this is overwritten by something else.
What I am looking to do is create a table where the STATUS column would only have the values OPEN or CLOSED so my output looks like the following:
ORDER_ID: 001, 002, 003
STATUS: OPEN, CLOSED, OPEN
ORDER_DATE: 2021-05-29 09:01:25, 2021-05-31 17:35:40, 2021-06-01 15:33:55
The table I have created so far looks like:
CREATE TABLE ORDERS (
ORDER_ID NUMBER NOT NULL,
STATUS VARCHAR2(6) NOT NULL,
ORDER_DATE DATE NOT NULL,
PRIMARY KEY(ORDER_ID)
);
I am guessing I need to change the create table query for the order_id to include AUTO_INCREMENT but it's more the status that I want to understand in terms of how to only accept certain values.
You need to create a constraint. Either a check
constraint with hardcoded values that the column is allowed. Or you can create a foreign key to a table which contains the allowed values.
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