What if you have 1,000,000 requests/sec?
What if between the INSERT and the LAST_INSERT_ID() another INSERT is made?
I use PostgreSQL and with postgres you can always ask the sequence what
the next id is going to be. It goes something like this::
next_id = context.GetNextId()[0].next_id
context.SQLInsertUser(uid=next_id, name='Peter')
where 'GetNextId' is a ZSQL method that looks like this::
<params></params>
SELECT NEXTVAL('users_uid_seq') AS next_id
Cliff Ford wrote:
This is how it works for MySQL:
insert into org (org_name, org_phone) values ('x', 'y')
<dtml-var sql_delimiter>
select LAST_INSERT_ID() as org_id
You have to have the select LAST_INSERT_ID call in the same query as the
insert, and you have to have the sql_delimiter.
I assume you know that the x and y values should be <sql-var ...> types.
Cliff
Benjamin Menking wrote:
New to python/Zope, old-timer on PHP....
I'm using MySQL and a ZSQL method to insert data into the database. ex:
insert into org (org_name, org_phone) values ('x', 'y')
What I'm trying to figure out is that org_id (also part of the org
table, but not specified in the sql statement) is an auto_increment
primary key field and in PHP I can use mysql_insert_id() to find out
what org_id was set to after the mysql_query() call.
Is there a way to retrieve that value with ZSQL method, or must I use
some other mechanism?
Thanks!
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Peter Bengtsson,
work www.fry-it.com
home www.peterbe.com
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