For me this is the right operation method, because the LAST_INSERT_ID() function returns a value which is not referenced to a data row at all.
There is also an overview of all the tools and functions you will need for this first class.
This lesson covers effective ways to color an image from black and white.
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Research and Innovative Technology Administration (RITA)U. AASHTO Connected Vehicle Infrastructure Deployment (1570 KByte) CAR 2 CAR Communication Consortium Manifesto This document summarises the main building blocks for a Car-2-X Communication System as it is pursued by the CAR 2 CAR Communication Consortium.
See the following example: This will print: LAST_INSERT_ID: 2mysql_insert_id: 1By using the ON DUPLICATE KEY UPDATE clause, only the old datarow will be modified, if the INSERT statement causes a duplicate entry, but the LAST_INSERT_ID() function returns the next auto_increment value for the primary key, which is by the way not set as the next auto_increment value in the database.
The mysql_insert_id() function returns the primary key of the old (and changed) data row.The bigger problem is when people don't understand what they are doing with database access.It's like driving a car without really knowing the rules of the road.Forget about using MAX to get the last inserted id.Race conditions like other users inserting between your SELECT MAX(.. The WAY to get the id is by using mysql_insert_id() or the mysql SQL function LAST_INSERT_ID(). Department of Transportation This report describes a deployment scenario for Connected Vehicle infrastructure by state and local transportation agencies, together with a series of strategies and actions to be performed by AASHTO to support application development and deployment.