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AUTO_INCREMENT
Column in ODBC
A common problem is how to get the value of an automatically generated ID
from an INSERT
. With ODBC, you can do something like this (assuming
that auto
is an AUTO_INCREMENT
field):
INSERT INTO foo (auto,text) VALUES(NULL,'text'); SELECT LAST_INSERT_ID(); |
Or, if you are just going to insert the ID into another table, you can do this:
INSERT INTO foo (auto,text) VALUES(NULL,'text'); INSERT INTO foo2 (id,text) VALUES(LAST_INSERT_ID(),'text'); |
See section 19.1.12.3 How to Get the Unique ID for the Last Inserted Row.
For the benefit of some ODBC applications (at least Delphi and Access), the following query can be used to find a newly inserted row:
SELECT * FROM tbl_name WHERE auto IS NULL; |