Check constraint in ms sql

Check constraint in sql

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')
);

Check constraint in sql

#For one column
CREATE TABLE Persons (
    ID int NOT NULL,
    LastName varchar(255) NOT NULL,
    FirstName varchar(255),
    Age int CHECK (Age>=18)
);

Check constraint in sql

#Add Check
ALTER TABLE Persons
ADD CONSTRAINT CHK_PersonAge CHECK (Age>=18 AND City='Sandnes');

#Drop Check 
ALTER TABLE Persons
DROP CHECK CHK_PersonAge;

Check constraint in ms sql

/*Adding Check constraint in sql server*/
ALTER TABLE (Table_Name)
ADD CONSTRAINT (Constraint_Name) CHECK (Boolean_Expression)

Similar codes

1 vote195 views1 answer
Adding indexing on a db model in mysql using sequelize
SQL
3 votes239 views1 answer
Sql online test questions and answers
SQL
0 vote291 views1 answer
Sql trigger to call stored procedure with parameters
SQL
4 votes215 views1 answer
Sql data types
SQL
28 votes205 views6 answers
Sql update
SQL
0 vote196 views2 answers
How to combine diff colmun value using group by postgres
SQL
0 vote199 views1 answer
Trigger value from maltiple table to single table mysql
SQL
3 votes194 views2 answers
Mysql add 2 hours
SQL
11 votes314 views2 answers
Sql between date range
SQL
0 vote192 views1 answer
NLS_NCHAR_CHARACTERSET
SQL