August 2010
Intermediate to advanced
526 pages
23h 39m
English
Content preview from Using SQLiteBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Name
sqlite3_backup_init() — Start an online backup [EXP]
Definition
sqlite3_backup* sqlite3_backup_init(
sqlite3* db_dst, const char* db_name_dst,
sqlite3* db_src, const char* db_name_src );-
db_dst The destination database connection.
-
db_name_dst The destination logical database name in UTF-8. This can be
main,temp, or the name given toATTACH DATABASE.-
db_src The source database connection. Must be different from
db_dst.-
db_name_src The source logical database name in UTF-8.
- Returns
An online backup handle.
Description
This function initiates an online database backup. The online backup APIs can be used to make a low-level copy of a complete database instance without locking the database. The backup APIs can be used to perform live backups, or they can be used to copy a file-backed database to an in-memory database (or vice-versa).
The application requires exclusive access to the destination database for the duration of the operation. The source database requires read-only access, but the locks are periodically released to allow other processes to continue to access and modify the source database.
To perform an online backup, a backup handle is created with
sqlite3_backup_init().
The application continues to call sqlite3_backup_step() to transfer data,
generally pausing for a short time between calls. Finally,
sqlite3_backup_finish()
is called to release the backup handle.
For more information on using the online backup APIs, see http://www.sqlite.org/backup.html.
See Also
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.