预填充核心数据具有新的预写日志（WAL）日志记录的SQL存储 [英] Prepopulated Core Data SQL store with new Write-Ahead Log (WAL) journaling

问题描述

我想使用SQL资料储存库传送我的应用程式，但现在，由于Apple推出了一个WAL日志记录，使3个文件，而不是一个，所以我想知道我应该运送所有3个，或者我可以尝试强制SQL做一个检查点，将它全部合并到一个.sql文件中。

I would like to ship my app with an SQL datastore, but now, since Apple has introduced a WAL journaling, that makes 3 files instead of one, so I wonder if I should ship all 3 of them, or I can try to force SQL to make a checkpoint, merging it all into one .sql file.

我真的想使用这个新的iOS 7功能，所以回到回滚

I would really like to go with this new iOS 7 feature, so going back to rollback journaling is not a way for me.

推荐答案

要强制SQLite创建检查点，请执行 PRAGMA wal_checkpoint 。

To force SQLite to make a checkpoint, execute PRAGMA wal_checkpoint.

或者，使用 journal_mode = DELETE ，并在文件安装后更改模式。

Alternatively, ship the database with journal_mode = DELETE, and change the mode after the file has been installed.

无论如何，运送所有文件。
（ -shm 文件不包含永久数据，可以忽略。）

In any case, there is no problem with just shipping all files. (The -shm file does not contain permanent data and could be ignored.)

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