Create Unique Index comes up with "Key size too big" error

Posted on 2006-06-18
Last Modified: 2013-12-09
This is the statement I'm trying to run on a Firebird database:

CREATE UNIQUE INDEX "iName_Software" ON "Software"("Name");

Unfortunately, it comes up with this error:

This operation is not defined for system tables.  Unsuccessful metadata update.
Key size too big for index iName_Software

Anyone with ideas on why this occurs?  I would've thought this would be fairly standard.
Question by:khooc
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 3
LVL 10

Expert Comment

ID: 16932024
Try without " eg.
CREATE UNIQUE INDEX iName_Software ON Software(Name);

LVL 19

Expert Comment

ID: 16932550
please tell us your table structure and character set, also which version of firebird

Author Comment

ID: 16942337
Hi Nick

Firebird Version:
Charset: NONE

For Table structure, name is Software.
Fields are:
 - OID INTEGER - Primary Key
 - "Name" VARCHAR(100)

Does that help?

BTW kacor, I tried your suggestion - it doesn't work.

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

LVL 19

Accepted Solution

NickUpson earned 125 total points
ID: 16943766
Try this

(please report back your findings)

Author Comment

ID: 16982481

as per

I decided to upgrade to 2.0 RC2 and I could create the index.

Hopefully it isn't too long until 2.0 is deemed production ready...
LVL 19

Expert Comment

ID: 17017071
NB RC3 came out today

Author Comment

ID: 17022409
BTW thanks for your help Nick - your answer was the best.


Featured Post

Percona Live Europe 2017 | Sep 25 - 27, 2017

The Percona Live Open Source Database Conference Europe 2017 is the premier event for the diverse and active European open source database community, as well as businesses that develop and use open source database software.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

A company’s centralized system that manages user data, security, and distributed resources is often a focus of criminal attention. Active Directory (AD) is no exception. In truth, it’s even more likely to be targeted due to the number of companies …
Your data is at risk. Probably more today that at any other time in history. There are simply more people with more access to the Web with bad intentions.
Polish reports in Access so they look terrific. Take yourself to another level. Equations, Back Color, Alternate Back Color. Write easy VBA Code. Tighten space to use less pages. Launch report from a menu, considering criteria only when it is filled…
This is a high-level webinar that covers the history of enterprise open source database use. It addresses both the advantages companies see in using open source database technologies, as well as the fears and reservations they might have. In this…

636 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question