3 MySQL ライセンスとサポート

(訳注：正確さをきすため原文を併記しています。訳文だけでなく原文に目を通してください。 もし意味の取違いを見つけたなら、takeshi@SoftAgency.co.jp に連絡してください。)

This chapter describes MySQL support and licensing arrangements:

本章では MySQL のサポートとライセンシング契約について述べます。

• The copyrights under which MySQL is distributed ( 「3.2 Copyrights Used by MySQL」節参照)
• Sample situations illustrating when a license is required ( 「3.3 Example Licensing Situations　ライセンス適用例」節参照)
• Support costs ( 「3.4 MySQL Licensing and Support Costs」節参照) and support benefits ( 「3.5 Types of Commercial Support」節参照)
• Commercial licensing costs

3.1 MySQL Licensing Policy

The formal terms of the GPL license can be found at 「L GNU General Public License」節. Basically, our licensing policy and interpretation of the GPL is as follows:

Note that older versions of MySQL are still using a more strict license. See the documentation for that version for more information. If you need a commercial MySQL license, because the GPL license doesn't suit your application, you can buy one at https://order.mysql.com/license.htmy.

For normal internal use, MySQL costs nothing. You do not have to pay us if you do not want to.

A license is required if:

• You link a part of the of MySQL that has a GPL Copyright to a program that is not free software (embedded usage of the MySQL server). In this case your application would also become GPL through the clause in the GPL license that acts as a virus. By licensing MySQL from us under a commercial license you will avoid this problem.
• You have a commercial application that ONLY works with MySQL and ships the application with the MySQL server. This is because we view this as linking even if it is done over the network.
• You have a distribution of MySQL and you don't provide the source code for your copy of the MySQL server, as defined in the GPL license.

A license is NOT required if:

• You do not need a license to include the client code in commercial programs. The client part of MySQL licensed with the LGPL GNU Library General Public License. The mysql command-line client includes code from the readline library that is under the GPL.
• If your use of MySQL does not require a license, but you like MySQL and want to encourage further development, you are certainly welcome to purchase a license or MySQL support anyway.
• If you use MySQL in a commercial context such that you profit by its use, we ask that you further the development of MySQL by purchasing some level of support. We feel that if MySQL helps your business, it is reasonable to ask that you help MySQL. (Otherwise, if you ask us support questions, you are not only using for free something into which we've put a lot a work, you're asking us to provide free support, too.)

For circumstances under which a MySQL license is required, you need a license per machine that runs the mysqld server. However, a multiple-CPU machine counts as a single machine, and there is no restriction on the number of MySQL servers that run on one machine, or on the number of clients concurrently connected to a server running on that machine!

If you have any questions as to whether or not a license is required for your particular use of MySQL, please read this again and then contact us. 「3.4.2 Contact Information」節参照.

If you require a MySQL license, the easiest way to pay for it is to use the license form on MySQL's secure server at https://order.mysql.com/license.htmy. Other forms of payment are discussed in 「3.4.1 Payment information」節.

3.2 Copyrights Used by MySQL

There are several different copyrights on the MySQL distribution:

MySQL 配布における、いくつか異なるコピーライトを示します：

1. The MySQL-specific source needed to build the mysqlclient library is licensed under the LGPL and programs in the `client' directory is GPL. Each file has a header that shows which copyright is used for that file.
2. The client library and the (GNU getopt) library are covered by the ``GNU LIBRARY GENERAL PUBLIC LICENSE.'' 「M GNU Library General Public License」節参照.
3. Some parts of the source (the regexp library) are covered by a Berkeley-style copyright.
4. All the source in the server and the (GNU readline) library is covered by the ``GNU GENERAL PUBLIC LICENSE.'' 「L GNU General Public License」節参照. This is also available as the file `COPYING' in the distributions.

One goal is that the SQL client library should be free enough that it is possible to add MySQL support into commercial products without a license. For this reason, we chose the LGPL license for the client code.

This means that you can use MySQL for free with any program that uses any of the free software licenses. MySQL is also free for any end user for his own or company usage.

However, if you use MySQL for something important to you, you may want to help secure its development by purchasing licenses or a support contract. 「3.5 Types of Commercial Support」節参照.

3.2.1 Copyright Changes

Version 3.22 of MySQL is still using a more strict license. See the documentation for that version for more information.

3.3 Example Licensing Situations　ライセンス適用例

This section describes some situations illustrating whether or not you must license the MySQL server. Generally these examples involve providing MySQL as an integral part of a product.

Note that a single MySQL license covers any number of CPUs and mysqld servers on a machine! There is no artificial limit on the number of clients that connect to the server in any way.

3.3.1 Selling Products that use MySQL

To determine whether or not you need a MySQL license when selling your application, you should ask whether the proper functioning of your application is dependent on the use of MySQL and whether you include the MySQL server with your product. There are several cases to consider:

• Does your application require MySQL to function properly?
• If your product requires MySQL, you need a license for any machine that runs the mysqld server. For example, if you've designed your application around MySQL, then you've really made a commercial product that requires the engine, so you need a license.
• If your application does not require MySQL, you do not need to obtain a license. For example, if using MySQL just adds some new optional features to your product (such as adding logging to a database if MySQL is used rather than logging to a text file), it should fall within normal use, and a license would not be required.
• In other words, you need a license if you sell a product designed specifically for use with MySQL or that requires the MySQL server to function at all. This is true whether or not you provide MySQL for your client as part of your product distribution.
• It also depends on what you're doing for the client. Do you plan to provide your client with detailed instructions on installing MySQL with your software? Then your product may be contingent on the use of MySQL; if so, you need to buy a license. If you are simply tying into a database that you expect already to have been installed by the time your software is purchased, then you probably don't need a license.

3.3.2 ISP MySQL Services

Internet Service Providers (ISPs) often host MySQL servers for their customers. With the GPL license this does not require a license.

インターネットサービスプロバイダー(ISP) は MySQL サーバーを自分のお客に 提供することもしばしばです。 GPL ライセンスでは、この場合はライセンスが要求されません。

On the other hand, we do encourage people to use ISPs that have MySQL support, as this will give them the confidence that if they have some problem with their MySQL installation, their ISP will be able to solve the problem for them (in some cases with the help from the MySQL development team).

All ISPs that want to keep themselves up-to-date should subscribe to our announce mailing list so that they can be aware of fatal issues that may be relevant for their MySQL installations.

Note that if the ISP doesn't have a license for MySQL, it should give its customers at least read access to the source of the MySQL installation so that its customer can verify that it is patched correctly.

3.3.3 Running a Web Server Using MySQL

If you use MySQL in conjunction with a Web server on Unix, you don't have to pay for a license.

This is true even if you run a commercial Web server that uses MySQL, because you are not selling an embedded MySQL version yourself. However, in this case we would like you to purchase MySQL support, because MySQL is helping your enterprise.

もしあなたが UNIX 上で Webサーバー とともに MySQL を使用するなら、 ライセンスを買う必要はありません。

これはたとえ MySQL を使用した商用の Webサーバー を走らせていても、 MySQL 自身を売っていないので、ライセンスを買う必要はありません。 しかしこの場合、我々はあなたが MySQL サポート契約をすることを望みます。 なぜなら、MySQL はあなたの事業を助けているからです。

3.4 MySQL Licensing and Support Costs

Our current license prices are shown below. These prices are now under review because of the change to a GPL copyright. New prices and terms will be posted on the MySQL web site at http://www.mysql.com/ as soon as they are ready.

All prices are in US Dollars. If you pay by credit card, the currency is EURO (European Union Euro) so the prices will differ slightly.

For high volume (OEM) purchases, the following prices apply:

大量購入(OEM 販売)の場合は：

For OEM purchases, you must act as the middle-man for eventual problems or extension requests from your users. We also require that OEM customers have at least an extended e-mail support contract. Note that OEM licenses only apply for products where the user doesn't have direct access to the MySQL server (embedded system). In other words, the MySQL server should only be used with the application that was supplied you. 　OEM 販売をする場合、ユーザーからの問題や要望に対して、 あなたは仲買人として振る舞わなくてはなりません。 われわれは OEM の客に対し、少なくとも拡張電子メールサポート契約を要求します。 OEM ライセンスは、MySQL サーバーに直接アクセスする必要のない 製品にのみ適用されます (組み込みシステム)。 いうならば、 MySQL は、ただ、あなたが提供しているアプリケーションと共にのみ 使用されなくてはなりません。 (訳注: OEM 供給を受けた MySQL サーバーライセンスのみを単体で売ることはできないという事。)

If you have a low-margin, high-volume product, you can always talk to us about other terms (for example, a percent of the sale price). If you do, please be informative about your product, pricing, market, and any other information that may be relevant.

　もしあなたが薄利多売の製品を持っているなら、他の条件についていつでも 我々と話し合うことができます(例えば売値のパーセンテージとか)。 もしあなたが製品を売りたいなら、 あなたの製品説明、値段、市場、その他関連項目を我々に知らせてください。

A full-price license is not a support agreement and includes very minimal support. This means that we try to answer any relevant questions. If the answer is in the documentation, we will direct you to the appropriate section. If you have not purchased a license or support, we probably will not answer at all.

完全な価格ライセンスはサポート協定でなく,非常に最小限のサポートを含みます. これは,我々が どんな関連質問にも答えようとする事を意味します. 返事がドキュメントにあるならば, 我々は適切なセクションをあなた示すつもりです. あなたがライセンスかサポートを購入 しなかったならば, 我々はたぶん全く答えるつもりはありません.

If you discover what we consider a real bug, we are likely to fix it in any case. But if you pay for support we will notify you about the fix status instead of just fixing it in a later release.

もしあなたが、我々が本当にバグだと考える物を見つけた場合、いかなる場合でも それを修正します。 しかし, あなたがサポートを支払うならば, 後のリリースでそれを修正する事の代わりに、 我々は修正状態に関してあなたに通知するつもりです.

More comprehensive support is sold separately. Descriptions of what each level of support includes are given in 「3.5 Types of Commercial Support」節. Costs for the various types of commercial support are shown below. Support level prices are in EURO (European Union Euro). One EURO is about 1.06 USD.

より包括的なサポートは別々に販売されます. それぞれのレベルのサポートが含む事に 関する記述は 「3.5 Types of Commercial Support」節. にあります。様々なタイプの商用サポートの価格は以下に 示します. サポートレベル価格は EURO (European Union Euro) です。 1 EURO はおよそ 1.17 USD です.

You may upgrade from any lower level of support to a higher level of support for the difference in price between the two support levels.

下位レベルのサポートから、それより高いレベルのサポートに、 2つのサポートの価格差分の支払いで、アップグレードが可能です。

We do also provide telephone support (mostly emergency support but also 24/7 support). This support option doesn't however have a fixed price but is negotiated for case to case. If you are interested in this option you can email sales@mysql.com and tell us about your needs.

Note that as our sales staff is very busy, it may take some time until your request is handled. Our support staff does however always answer promptly to support questions!

3.4.1 Payment information

Currently we can take SWIFT payments, checks, or credit cards.

現在,SWIFT支払い,小切手またはクレジットカードでの支払いができます.

Payment should be made to: 振込先は：

Postgirot Bank AB
105 06 STOCKHOLM, SWEDEN

MySQL AB
BOX 6434
11382 STOCKHOLM, SWEDEN

SWIFT address: PGSI SESS
Account number: 96 77 06 - 3

Specify: license and/or support and your name and e-mail address.

あなたの購入ライセンス かつ/又は サポートと,名前と Eメールアドレスを記述のこと。

In Europe and Japan you can use EuroGiro (that should be less expensive) to the same account.

ヨーロッパと日本では,あなたは支払いに EuroGiro(それが高価ではない) を使用することができます.

If you want to pay by check, make it payable to ``MySQL Finland AB'' and mail it to the address below:

あなたが小切手によって支払いたいと思っているならば,それを ``MySQL Finland AB'' に支払い満期にして, 以下のアドレスに郵送してください.

MySQL AB
BOX 6434, Torsgatan 21
11382 STOCKHOLM, SWEDEN

If you want to pay by credit card over the Internet, you can use MySQL AB's secure license form.

インターネット上でクレジットカードで支払いたいと思っているならば, あなたは TcXの安全なライセンスフォーム. を使用することができます.

You can also print a copy of the license form, fill it in, and send it by fax to:

また上のページのコピーを印刷して書き込み,ファックスを使って以下にそれを送ることもできます.

+46-8-729 69 05

If you want us to bill you, you can use the license form and write ``bill us'' in the comment field. You can also mail a message to sales@mysql.com (not mysql@lists.mysql.com!) with your company information and ask us to bill you.

請求書を送って欲しい場合,あなたはライセンスフォームを使用し, 注釈欄に ``請求書 希望'' を書いてください. あるいは,あなたの会社の情報を記載したメッセージを sales@mysql.com におくり, (mysql@lists.mysql.com ではありません!) 請求書を送るように我々に依頼する事もできます。

3.4.2 Contact Information

For commercial licensing, please contact the MySQL licensing team. The much preferred method is by e-mail to licensing@mysql.com. Fax is also possible but handling of these may take much longer (Fax +46-8-729 69 05).

If you represent a business that is interested in partnering with MySQL, please send e-mail to partner@mysql.com.

For timely, precise answers to technical questions about MySQL you should order one of our support contracts. MySQL support is provided by the MySQL developers so the standard is extremely high.

If you are interested in placing a banner advertisement on our Web site, please send e-mail to advertising@mysql.com.

If you are interested in any of the jobs listed in our jobs section, please send e-mail to jobs@mysql.com.

For general discussion amongst our many users, please direct your attention to the appropriate mailing list.

For general information inquires, please send e-mail to info@mysql.com.

For questions or comments about the workings or content of the Web site, please send e-mail to webmaster@mysql.com.

3.5 Types of Commercial Support

The following is true of all support options:

• The support is per year.
• We will fix, or provide a reasonable workaround for any repeatable bug.
• We will give a reasonable effort to find and fix any other MySQL related bug.
• The higher level of support contract the more effort we will put into finding a solution to your problems.
• The following is true for all support contracts except Basic email support: For non-bug related things, like helping you optimize your queries or your system, extending MySQL with new functionality, etc., we charge 200 EURO/hour, which is deducted from your support contract. In other words, if you have login support (2000 EURO), you can expect us to work up to 10 hours to help you with things like this.

3.5.1 Basic E-mail Support　基本電子メールサポート

Basic e-mail support is a very inexpensive support option and should be thought of more as a way to support our development of MySQL than as a real support option. We at MySQL do give a lot of free support in all the different MySQL lists, and the money we get from basic e-mail support is largely used to make this possible.

基本電子メールサポートは非常に費用のかからないサポートオプションであり, 我々の MySQL の開発をサポートする本当のサポートオプションで、 よりよい方法として考えられるべきです.

At this support level, the MySQL mailing lists are the preferred means of communication. Questions normally should be mailed to the primary mailing list (mysql@lists.mysql.com) or one of the other regular lists (for example, win32@lists.mysql.com for Windows-related MySQL questions), as someone else already may have experienced and solved the problem you have. 「2.2 質問またはバグ報告」節参照.

このサポートレベルでは, MySQL メーリングリストはコミュニケーション を取るには好まれる方法です. 通常, 質問は主要なメーリングリスト (mysql@lists.mysql.com) か他のメーリングリストのどれかに送信されるべきで、 （例えば, Windows に関連する MySQL の質問のための win32@lists.mysql.com ） これは他の誰かが同じ問題を経験して, 既に解決しているかもしれないからです。 「2.2 質問またはバグ報告」節参照.

However, by purchasing basic e-mail support, you also have access to the support address mysql-support@mysql.com, which is not available as part of the minimal support that you get by purchasing a MySQL license. This means that for especially critical questions, you can cross-post your message to mysql-support@mysql.com. (If the message contains sensitive data, you should post only to mysql-support@mysql.com.)

REMEMBER! to ALWAYS include your registration number and expiration date when you send a message to mysql-support@mysql.com.

しかし、基本電子メールサポートを購入することによって, あなたはサポートアドレス mysql-support@mysql.com にアクセスできます. (このメールアドレスは最小の MySQL ライセンスの購入では利用不可能です。) これは特に重要な質問のために使用されており、また、mysql-support@mysql.com. とクロスポストすることも可能です。 （メッセージに機密のデータが含まれる場合、あなたは mysql-support@mysql.com. だけに送信するべきです.）

メッセージを mysql-support@mysql.com に送るときは、 迅速な応答を確実にするために、必ずあなたの登録番号と満了日付を書き添えてください。

Note that if you have encountered a critical, repeatable bug, and follow the rules outlined in the manual section of how to report bugs and send it to bugs@lists.mysql.com, we promise to try to fix this as soon as possible, regardless of your support level! 「2.3 バグや問題を報告する方法」節参照.

Basic e-mail support includes the following types of service:

基本電子メールサポートは以下のサービスを含みます：

• If your question is already answered in the manual, we will inform you of the correct section in which you can find the answer. If the answer is not in the manual, we will point you in the right direction to solve your problem.
• We guarantee a timely answer for your e-mail messages. We can't guarantee that we can solve any problem, but at least you will receive an answer if we can contact you by e-mail.
• We will help with unexpected problems when you install MySQL from a binary distribution on supported platforms. This level of support does not cover installing MySQL from a source distribution. Supported platforms are those for which MySQL is known to work. 「4.2 MySQL がサポートする OS」節参照.
• We will help you with bugs and missing features. Any bugs that are found are fixed for the next MySQL release. If the bug is critical for you, we will mail you a patch for it as soon the bug is fixed. Critical bugs always have the highest priority for us, and we ensure that they are fixed as soon as possible.
• Your suggestions for the further development of MySQL will be taken into consideration. By taking email support you have already helped the further development of MySQL. If you want to have more input, upgrade to a higher level of support.
• If you want us to help optimize your system, you must upgrade to a higher level of support.

• もしあなたの質問が既にマニュアルで答えられているのであれば、 答えを見つけれるであろう正しいセクションをあなたに教えます。 もし答えがマニュアルに無ければ、問題解決のための正しい方向を指し示します。
• 素早い返信を保証致します。必ずしもどんな問題も解決できると保証は致しませ んが、あなたが E メールでコンタクト可能ならば少なくとも返信は受け取るでしょ う。
• サポートされているプラットフォームにおいてバイナリー配布形態から MySQL をインストールする時、予期しない問題が現れた場合お助け致します。 このレベルのサポートではソース配布形態から MySQL をインストール する場合はふくまれておりません。``サポート対象'' プラットフォームとは、 MySQL が動作すると知られているものです 「4.2 MySQL がサポートする OS」節参照.
• バグや足りない機能がある場合 。見付かったバグに付いては次期 MySQL リリースにおいて直されます。もしそのバグがあなたにとって致命的であれば、修正次第そ のバグの対するパッチをメールでお送りします。致命的バグは常に高い優先度になり、 可能な限り速く、修正が行われます。
• さらなる MySQL 開発のためにあなたの意見は考慮されます。 あなたが E メールサポートをお持ちならば、もう既に MySQL の更なる 開発への手助けをされている事になります。もっと意見を取り入れたいならば、 上位のサポートにアップグレードしてください。
• もしあなたが私供によるのシステムの最適化の手助けをお望みであれば、更に 上位のサポートへアップグレードする必要があります。

3.5.2 Extended E-mail Support　拡張電子メールサポート

Extended e-mail support includes everything in basic e-mail support with these additions:

• Your e-mail will be dealt with before mail from basic e-mail support users and non-registered users.
• Your suggestions for the further development of MySQL will receive strong consideration. Simple extensions that suit the basic goals of MySQL are implemented in a matter of days. By taking extended e-mail support you have already helped the further development of MySQL.
• Typical situations that are covered by extended e-mail support are:
  • We will answer and (within reason) solve questions that relate to possible bugs in MySQL. As soon as the bug is found and corrected, we will mail a patch for it.
  • We will help with unexpected problems when you install MySQL from a source or binary distribution on supported platforms.
  • We will answer questions about missing features and offer hints how to work around them.
  • We will provide hints on optimizing mysqld for your situation.
• You are allowed to influence the priority of items on the MySQL TODO List. 「H MySQL に将来加えたいもの (The TODO)」節参照. This will ensure that the features you really need will be implemented sooner than they might be otherwise.

3.5.3 Login Support　ログインサポート

Login support includes everything in extended e-mail support with these additions:

• Your e-mail will be dealt with even before e-mail from extended e-mail support users.
• Your suggestions for the further development of MySQL will be taken into very high consideration. Realistic extensions that can be implemented in a couple of hours and that suit the basic goals of MySQL will be implemented as soon as possible.
• If you have a very specific problem, we can try to log in on your system to solve the problem ``in place.''
• Like any database vendor, we can't guarantee that we can rescue any data from crashed tables, but if the worst happens, we will help you rescue as much as possible. MySQL has proven itself very reliable, but anything is possible due to circumstances beyond our control (for example, if your system crashes or someone kills the server by executing a kill -9 command).
• We will provide hints on optimizing your system and your queries.
• You are allowed to call a MySQL developer (in moderation) and discuss your MySQL-related problems. This option is however only to be used as a last result during an emergency after we have failed to grasp the total problem with email. To make efficient use of our time we need to first get all facts about the problem, before talking on phone, to be able to work as efficiently as possible on solving the problem.

3.5.4 Extended Login Support　拡張ログインサポート

Extended login support includes everything in login support with these additions:

• Your e-mail has the highest possible priority.
• We will actively examine your system and help you optimize it and your queries. We may also optimize and/or extend MySQL to better suit your needs.
• You may also request special extensions just for you. For example:

  mysql> select MY_FUNC(col1,col2) from table;
  

• We will provide a binary distribution of all important MySQL releases for your system, as long as we can get an account on a similar system. In the worst case, we may require access to your system to be able to create a binary distribution.
• If you can provide accommodations and pay for traveler fares, you can even get a MySQL developer to visit you and offer you help with your troubles. Extended login support entitles you to one personal encounter per year, but we are always very flexible towards our customers! If the visit takes 16 hours or more, the first 8 hours is without charge. For the hours above 8 hours, you will be charged with a rate that is at least 20 % less than our standard rates.

3.5.5 Telephone Support

Telephone support includes everything in extended login support with these additions:

• We will provide you with a dynamic web page showing the current list of MySQL developers that you can phone when you have a critical problem.
• For non critical problem, you can request a MySQL developer to phone back within 48 hours to discuss MySQL related issues.

3.5.6 Support for other table handlers

To get support for BDB tables, InnoDB tables or GEMINI tables you have to pay an additional 30% on the standard support price for each of the table handlers you would like to have support for.

We at MySQL AB will help you create a proper bug report for the table handler and submit it to the developers for the specific table handler. We will also do our best to ensure that you will get a timely answer or solution from the developers of the table handler.

Even if we are quite confident that we can solve most problems within a timely manner, we can't guarantee a quick solution for any problems you can get with the different table handlers. We will however do our best to help you get the problem solved.

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