sqlite-journal-mode

Android: SQLite database created with room shows no tables when opening with sqlte-browser

由 血红的双手。 提交于 2019-12-20 11:53:03
问题 I am using Room Persistence Library 1.1.0 . I could find the database file at /data/data/<package_name>/databases/ using Android Studio's Device File Explorer. It contains multiple tables and I can access contents of that tables without any problem using room-DAO s. However when opening with sqlite-browser , is shows no table. What might be the reason? Is it possible to resolve the issue without switching back to old SQLiteOpenHelper from room? 回答1: Solution To open such databases * with

Android: SQLite database created with room shows no tables when opening with sqlte-browser

由 拥有回忆 提交于 2019-12-20 11:52:07
问题 I am using Room Persistence Library 1.1.0 . I could find the database file at /data/data/<package_name>/databases/ using Android Studio's Device File Explorer. It contains multiple tables and I can access contents of that tables without any problem using room-DAO s. However when opening with sqlite-browser , is shows no table. What might be the reason? Is it possible to resolve the issue without switching back to old SQLiteOpenHelper from room? 回答1: Solution To open such databases * with

Since when does sqlite's persist journal mode become the default journal mode in Android?

由 不羁的心 提交于 2019-12-12 20:14:42
问题 Since when does sqlite's persist journal mode become the default journal mode in Android? I know that the journal mode have changed in Android version 4.1.1 (API 16). But it is not accurate. Because the release notes do not contain this information. I do not know if i can find in release note. If you know someone who knows exactly when SQLite journal mode was changed in Android, plz let me know. 回答1: I don't think journal_mode is PERSIST by default rather that DELETE is the default. However,

-shm and -wal files in SQLite DB

由 强颜欢笑 提交于 2019-12-03 07:22:42
问题 I am taking the backup of SQLite DB using cp commmand after running wal_checkpoint(FULL). The DB is being used in WAL mode so there are other files like -shm and -wal in my folder. When I run wal_checkpoint(FULL), the changes in WAL file get committed to the database. I waqs wondering whether -wal and -shm files get deelted after running a checkpoint. If not, then what do they contain ? I know my backup process is not good since I am not using SQLite backup APIs. This is a bug in my code. Can

Android: SQLite database created with room shows no tables when opening with sqlte-browser

由 一曲冷凌霜 提交于 2019-12-03 01:56:16
I am using Room Persistence Library 1.1.0 . I could find the database file at /data/data/<package_name>/databases/ using Android Studio's Device File Explorer. It contains multiple tables and I can access contents of that tables without any problem using room-DAO s. However when opening with sqlite-browser , is shows no table. What might be the reason? Is it possible to resolve the issue without switching back to old SQLiteOpenHelper from room? Solution To open such databases * with sqlite-browser , you need to copy all three files . All must be in the same directory. * Databases stored in

-shm and -wal files in SQLite DB

由 泄露秘密 提交于 2019-12-02 20:54:57
I am taking the backup of SQLite DB using cp commmand after running wal_checkpoint(FULL). The DB is being used in WAL mode so there are other files like -shm and -wal in my folder. When I run wal_checkpoint(FULL), the changes in WAL file get committed to the database. I waqs wondering whether -wal and -shm files get deelted after running a checkpoint. If not, then what do they contain ? I know my backup process is not good since I am not using SQLite backup APIs. This is a bug in my code. Can anyone please suggest what content do -shm and -wal files contain after running checkpoint. Any link
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