Check constraint

Inquisitive Ibex answered on January 7, 2023 Popularity 8/10 Helpfulness 3/10

answer Check constraint

Check constraint

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CREATE TABLE Persons (
    ID int NOT NULL,
    LastName varchar(255) NOT NULL,
    FirstName varchar(255),
    Age int,
    City varchar(255),
    CONSTRAINT CHK_Person CHECK (Age>=18 AND City='Sandnes')
);

---Adding after the table creation 
alter table emp2 add constraint ch_names check (gender='M' or gender ='F' or gender ='t')

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Source: Grepper

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Contributed on Jan 07 2023

Inquisitive Ibex

0 Answers Avg Quality 2/10

Check constraint

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