Android database upgrade

相關問題 & 資訊整理

Android database upgrade

2011年11月15日 — onUpgrade is called whenever the app is upgraded and launched and the database version is not the same. 2. Incrementing the db version. You need ... ,2015年10月12日 — If you open db with version 1, and next time you open db with version 2, the onUpgrade method will be called with param ordVersion = 1 and ... ,2015年1月10日 — @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) if(oldVersion<2) db.execSQL(ALTER TABLE +this. ,Installing a new version of your app doesn't necessarily remove its data (unless you uninstall it manually before installation or just clear ...,2015年1月19日 — 1) Leave my SQLiteOpenHelper class's onCreate method AS IS. · 2) Fill in my SQLiteOpenHelper class's onUpgrade method. · 3) Update the database ... ,2016年1月2日 — Android SQLite Database – How to use onUpgrade() correctly · Solution 1: Delete the tables that have changed and recreate them · Solution 2: Drop ... ,2015年5月5日 — If you have written an Android app of even moderate size, you have likely implemented and utilized a SQLite Database. The internet is full of  ... ,upgrading sqlite database in android. GitHub Gist: instantly share code, ... public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) . ,2020年11月28日 — Whenever you create your database by Room or SQLite in your Android app then you have to set a database version which is used to handle database ... ,2021年2月24日 — Called when the database needs to be upgraded. The implementation should use this method to drop tables, add tables, or do anything else it ...

相關軟體 SQLite 資訊

SQLite
SQLite 是一個實現自包含,無服務器,零配置,事務 SQL 數據庫引擎的進程內庫。 SQLite 的代碼是在公共領域,因此可以用於任何目的,商業或私人。 SQLite 是世界上應用最廣泛的數據庫,比我們可以計數的應用程序還要多,其中包括幾個備受矚目的項目。選擇版本:SQLite 3.21.0(32 位)SQLite 3.20.1(64 位) SQLite 軟體介紹

Android database upgrade 相關參考資料
Android: upgrading DB version and adding new table - Stack ...

2011年11月15日 — onUpgrade is called whenever the app is upgraded and launched and the database version is not the same. 2. Incrementing the db version. You need ...

https://stackoverflow.com

Android : Change SQLite DB on upgrade - Stack Overflow

2015年10月12日 — If you open db with version 1, and next time you open db with version 2, the onUpgrade method will be called with param ordVersion = 1 and ...

https://stackoverflow.com

upgrade sqlite database in my app - Stack Overflow

2015年1月10日 — @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) if(oldVersion&lt;2) db.execSQL(ALTER TABLE +this.

https://stackoverflow.com

Upgrade Android app and keep old SQLite database - Stack ...

Installing a new version of your app doesn't necessarily remove its data (unless you uninstall it manually before installation or just clear ...

https://stackoverflow.com

Steps to upgrade existing Android database wo losing data

2015年1月19日 — 1) Leave my SQLiteOpenHelper class's onCreate method AS IS. · 2) Fill in my SQLiteOpenHelper class's onUpgrade method. · 3) Update the database ...

https://stackoverflow.com

Android SQLite Database - How to use onUpgrade() correctly

2016年1月2日 — Android SQLite Database – How to use onUpgrade() correctly · Solution 1: Delete the tables that have changed and recreate them · Solution 2: Drop ...

https://riggaroo.dev

How To Android SQLite onUpgrade() | BHW Blog

2015年5月5日 — If you have written an Android app of even moderate size, you have likely implemented and utilized a SQLite Database. The internet is full of  ...

https://thebhwgroup.com

upgrading sqlite database in android - gists · GitHub

upgrading sqlite database in android. GitHub Gist: instantly share code, ... public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) .

https://gist.github.com

SQLITE query on upgrade database - Mobikul

2020年11月28日 — Whenever you create your database by Room or SQLite in your Android app then you have to set a database version which is used to handle database ...

https://mobikul.com

SQLiteOpenHelper | Android Developers

2021年2月24日 — Called when the database needs to be upgraded. The implementation should use this method to drop tables, add tables, or do anything else it ...

https://developer.android.com