In oracle sql, how do I add "not null constraint" at end of create table block...
In oracle sql, how do I add "not null constraint" at end of create table block and give it a name without using the CHECK constraint?
Is it e.g.,
CONSTRAINT constraintName NOT NULL
If so, then how does the statement know which columnName I'm referring to to make NOT NULL?
I know that I can do this after declaring the column, what I'm wondering about is how to do this after declaring all the columns.
Homework Answers
Yes , you can make a column to not accept NULL values by writing this
CREATE TABLE
(
Column_name data_type NOT NULL,
)
Add Answer to:
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Edit: I was already give this code and it did not work
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where table_name='CUSTOMER';
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constraint club_pk
primary key
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);
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