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 vote223 views1 answer
Configure MYSQL to run on another port number, other than the default port 3306 ubuntu linux
SQL
12 votes214 views10 answers
Google
SQL
2 votes197 views1 answer
Sql find missing values between two tables
SQL
2 votes227 views1 answer
Use cases condition in sql query laravel
SQL
3 votes214 views3 answers
Concatenation in sql
SQL
5 votes225 views3 answers
Mysql extract month from date
SQL
16 votes235 views3 answers
Update table from another table
SQL
0 vote228 views1 answer
Sql server set complex constraints
SQL
0 vote218 views1 answer
Error in connection_import_file(conn@ptr, name, value, sep, eol, skip) : RS_sqlite_import: test.csv line 2 expected 11 columns of data but found 1
SQL
0 vote215 views1 answer
Insufficient memory to excute the sql query
SQL