Sql query checker

CREATE TABLE employee

   ( employee_id VARCHAR(20),

    Name VARCHAR (20),

    Address VARCHAR (20),

    Mobile_no  SMALLINT);

Online sql testing tool

select * from sql_test_a

Source: sqltest.net

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

0 vote209 views1 answer
Sql cheetsheet
SQL
3 votes214 views2 answers
Find string in stored procedure sql server
SQL
8 votes162 views3 answers
Alter user root mysql
SQL
-1 vote193 views1 answer
SQL SERVER microsoft How to Add Column at Specific Location in Table
SQL
3 votes171 views3 answers
Mysqldump: couldn
SQL
1 vote164 views1 answer
Oracle sql listagg
SQL
0 vote186 views1 answer
Get null value in sql
SQL
0 vote191 views1 answer
Get created time of database psql 8
SQL
15 votes153 views7 answers
MYSQL
SQL
0 vote186 views1 answer
Sql sort ages
SQL