Sql check

Sql constraint check value in list

ALTER TABLE <table>
ADD CONSTRAINT chk_val CHECK (col in ('yes','no','maybe'))

Source: stackoverflow.com

Sql constraint check value in list

CREATE TABLE test(
    _id BIGINT PRIMARY KEY NOT NULL,
    decision NVARCHAR(5),
    CHECK (decision in ('yes','no','maybe'))
);

Source: stackoverflow.com

Sql query checker

CREATE TABLE employee

   ( employee_id VARCHAR(20),

    Name VARCHAR (20),

    Address VARCHAR (20),

    Mobile_no  SMALLINT);

Sql check

Adds a constraint that limits the value which can be added to a column.
Example 1 (MySQL): Makes sure any users added to the users table are 18
or over.
CREATE TABLE users (
first_name varchar(255),
age int,
CHECK (age>=18)
);
Example 2 (MySQL): Adds a check after the table has already been
created.
ALTER TABLE users
ADD CHECK (age>=18);

-1

Similar codes

1 vote132 views3 answers
Sql server get week dates from week number
SQL
3 votes94 views1 answer
If 0 return null else return query mysql
SQL
0 vote144 views1 answer
Sql remove first character from string
SQL
1 vote128 views1 answer
Error code 1055
SQL
0 vote154 views1 answer
Play framework connection via windows sql server
SQL
1 vote159 views3 answers
Alter schema sql server
SQL
0 vote165 views1 answer
Create table with timestamp mysql youtube
SQL
0 vote138 views2 answers
How to know the character set of an oracle databes
SQL
0 vote171 views1 answer
ORACLE PARSE STRING
SQL
1 vote142 views1 answer
Mysql take number in string
SQL