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

0 vote110 views1 answer
Export partttion and import in oracle
SQL
8 votes124 views2 answers
Oracle auto increment primary key
SQL
1 vote128 views1 answer
Set id count mysql
SQL
32 votes122 views6 answers
Sql count where
SQL
5 votes118 views1 answer
Oracle get foreign keys on table
SQL
0 vote128 views1 answer
Which lock mode is not available in sql
SQL
0 vote108 views1 answer
Postgresql remove duplicate rows 2 columns
SQL
0 vote142 views1 answer
In query in sql
SQL
3 votes138 views2 answers
Savepoint in sql
SQL
20 votes125 views3 answers
Update values in select statement sql
SQL