mysql - SQL Integer Range When Creating Tables -


i'm trying give int in 1 of create statements range of possible values, i.e. 

 create table site(     **siteid int (1,4),**     userid int unsigned not null,     name varchar(128) unique not null,     foreign key (userid) references users(userid),     primary key (siteid) );

i forget syntax use ranges, , i'm pretty sure i'm erring when i'm attempting use is. in advance.

author's note: first 2 parts of answer incorrect. thought mysql supported check constraints , didn't. still doesn't. limit columns simple list of values, use enum approach @ end of answer. if logic more complicated (range of values, value based on column, etc.), mysql option trigger.

you need check constraint if it's int:

create table site (   siteid int,   constraint siteid_ck check (siteid in (1, 2, 3, 4)),   ... , rest

or:

create table site (   siteid int,   constraint siteid_ck check (siteid between 1 , 4),   ... , rest

or if can live string siteid then:

create table site (   siteid enum('1', '2', '3', '4'),   ... , rest

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