Webの周りを読んだり、スタックオーバーフローをしたり、コーディングホラーからリンクされたdbバージョン管理に関するこれらの記事のほとんどに基づいて、8年前のphpmysqlWebサイトのデータベースをバージョン管理する計画を立てました。
Database Version Control plan
- Create a db as the "Master Database"
- Create a table db_version (id, script_name, version_number, author, comment, date_ran)
- Create baseline script for schema+core data that creates this db from scratch, run this on Master Db
- Create a "test data" script to load any db with working data
- Modifications to the master db are ONLY to be made through the db versioning process
- Ensure everyone developing against the Master Db has a local db created by the baseline script
- Procedures for commiting and updating from the Master Db
- Master Db Commit
- Perform a schema diff between your local db and the master db
- Perform a data diff on core data between your local db and master db
- If there are changes in either or both cases, combine these changes into an update script
- Collect the data to be added to a new row in db_version table, and add an insert for this into the script
- new version number = latest master db version number +1
- author
- comment
- The script must be named as changeScript_V.sql where V is the latest master db version +1
- Run the script against the master db
- If the script executed succesfully, add it to the svn repository
- Add the new db_version record to your local db_version table
- Update from Master Db
- Update your local svn checkout to have all the latest change scripts available
- compares your local db_version table to the master db_version table to determine which change scripts to run
- Run the required change scripts in order against your local db, which will also update your local db_version table
私の最初の質問は、この音は正しいですか?
私の2番目の質問は、コミットプロセスは、1日に2回以上実行するのは少し複雑に思えます。それを確実に自動化する方法はありますか?または、データベースの変更を問題になるほど頻繁にコミットするべきではありませんか?