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 vote150 views1 answer
Kill a pid redshift
SQL
3 votes148 views1 answer
DB: in eloquent using sql
SQL
0 vote160 views1 answer
Ubuntu stop mysql from starting on boot
SQL
9 votes145 views4 answers
SQL Date Format
SQL
6 votes155 views2 answers
Psql load dump
SQL
25 votes172 views4 answers
Import mysql dump command line
SQL
3 votes142 views1 answer
Search for column name in psql
SQL
0 vote146 views1 answer
Sql server manager close connection
SQL
0 vote152 views1 answer
Mysql regex exact match
SQL
0 vote154 views1 answer
Insert set mysql
SQL