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 vote237 views2 answers
Mysql cast to varchar
SQL
0 vote190 views1 answer
Mysql get longest string in column
SQL
8 votes201 views1 answer
My sql version
SQL
0 vote214 views1 answer
Stop psql server windows
SQL
0 vote173 views1 answer
Mysql connection with sqlalchecmy
SQL
0 vote202 views1 answer
Including parameters in OPENQUERY
SQL
0 vote267 views2 answers
Search stored procedures by name
SQL
-1 vote187 views5 answers
Not in sql
SQL
1 vote175 views1 answer
Python escape mysql
SQL
5 votes168 views1 answer
Ora-00054 find lock
SQL