Hi
Could anyone help perhaps tell me why the following
simple query containing a sub-query gives a syntax
error.
select 1 from messages
where not exists ( select 1 from
message_push_notifications
where message_id =
messages.id)
Thanx
Herman
Hi All
I am MySQL newby with an Oracle background.
Is the following syntax suported?
alter table members add primary key (id);
alter table members add constraint members_uk unique
(name);
Thanx
Herman
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I tried to create a foreign key using:
ALTER TABLE msg_recipients ADD CONSTRAINT
msg_recipient_member_fk FOREIGN KEY
(recipient_member_id) REFERENCES members (id);
and got this error:
Can't create table '.\wapmagic\#sql-c50_48.frm'
(errno: 150)
Any ideas?
Thanx
Herman
