database
table, view, function, procedure
table
record, field, index
record
insert
update
delete
select: top, distinct, order, group
where
and/or, in, between, is null, is not null, like
field
type: int, text, date, blob
constraints: not null, default, unique, auto_increment, primary key, foreign key, check;
alter table
add unique(xxx)
add primary key(xxx)
drop primary key
add foreign key(xxx) references table_name(xxx)
drop foreign key
add check(xxx)
alter field_name set default val
alter field_name drop default
add column xxx type
drop column xxx
