Question

how to create a table without an index or key

Asked by: jmokrauer

I have to create a table with around 200,000,000 entries.  For speed reasons I would like to load up the table before I add my keys.  When I try and create the table without a key, I get the following message:  Error 1075 - ' incorrect table definition, there can only be one autocolumn and it must be defined as a key'.

Is there anyway to create a table with out a primary key?  If not, is there a way to tell the database not to update the index until I have added all my entries?  Any other ideas?

Thanks!

Server info:
MySQL 5.0.45-community-nt via TCP/IP
MySQL Client Version 5.1.11
InnoDB tables

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Asked On
2008-01-21 at 07:12:39ID23098297
Tags

mysql

Topics

MySQL Server

,

Databases Miscellaneous

,

SQL Query Syntax

Participating Experts
3
Points
500
Comments
3

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Answers

 

by: markhoyPosted on 2008-01-21 at 07:23:10ID: 20706617

Are you using a script to create the table? Can you post it if you are?

 

by: angelIIIPosted on 2008-01-21 at 07:23:17ID: 20706622

>Is there anyway to create a table with out a primary key?  
yes, that IS possible.
however, you should NOT create a table without a primary key.

the error you get is that either you tried to create the table with more than 1 autonumber field, or with a autonumber field that is not defined as primary key.

 

by: michofreihaPosted on 2008-01-21 at 07:26:24ID: 20706651

In order to solve the issue, you can add a new autonumber field to your table, after that import the data to that table, like that your data will not be affected and everything will stay as it is. This additional field should be primary key.

Regards

20120131-EE-VQP-002

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