As a solution, wait till . In SQLite source code we can see a function named tabIsReadOnly with this comment: /* Return true if table pTab is read-only. If you try to open DB at this moment error attempt to write a readonly database (or similar) could appear. So I think our friend user143482 is trying to acesse a "read only" table. So, it's seems hard to belive this can be a "chmod" problem, because if the file is read only, even creating table would be impossible as SQLite would be unable to write the "sqlite_master" data. In this db file we have of course the user tables but also the system tables so "sqlite_master" for example which contain the definiton of the tables. When I look at the data on the flash of the ESP I notice there is only one file for the whole db (there is also a temp file). I'm using SQLite on ESP32 and all answers here are "very strange". It worked apparently there just needed to be enough time for the resources to flush out to disk. (sqlite3. If the create/drop failed, we waited for 50 ms and tried again, repeating until we succeeded or 5 seconds elapsed. Check file permissions: Make sure that the file and its parent directories have appropriate read and write permissions. We got around this by running a test write query against the db upon opening (e.g., creating then dropping a table with a silly name). We speculated that the problem was due to the fact that Windows (or the sqlite implementation under windows) doesn't always immediately clean up up file resources upon closing of a file. We eventually discovered that the threads that were failing were only those that were trying to open the database immediately after another thread had closed it (within 3 ms). exe file, read operation is working fine. exe file, and the database is there in the folder containing the executable file. Find a partner Become a partner UGURUS Elite training for agencies & freelancers. Partners Work with a partner to get up and running in the cloud, or become a partner. Hoever even if it would be writable, using SQLite wont work in a long term for this scenario, because when you will deploy a new version of your application, a new instance is spawned, but your database (file) stays on the old instance only. The SQLite file is in the same directory as the workflow and I checked to make. The Wave Content to level up your business. The filesystem on AppEngine instances is read-only (except for the /tmp directory iirc). Our system was suffering this problem, and it definitely wasn't a permissions issue, since the program itself would be able to open the database as writable from many threads most of the time, but occasionally (only on Windows, not on OSX), a thread would get these errors even though all the other threads in the program were having no difficulties. Hi I have a sqlite3 database which is working from one of the programs but when i try to write to it from another program i get the following error message. I have created a java application having sqlite db (using netbeans). Getting attempt to write a readonly database error.
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