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It was entirely scenarios under which the SQLite library may need to write to the database and directory in order to ensure consistency and durability by recovering from a separate program that may have been using the library crashing earlier or concurrently.
They really don't care how they get to that point. You seem to be confusing several things here.
It only does what you tell it to. If you make no calls to SQLite to make changes then it won't. Users are using your program,- they can only do what your program allows.
If you want to ensure that your program cannot make changes eg you let users enter arbitrary SQL then there is an API that is called on preparing each chunk of SQL where you can allow or deny operations: If you want to ensure code you write does not make changes then don't write any code that does so.
And install an authorizer as a fail-safe. If you want to prevent the user modifying the database file in any way eg going in separately with a text or hex editor then you will need to use operating system access control facilities to protect from that user for the database file and the directory.
If you want fine low level control over SQLite's interaction with the underlying operating system then the VFS layer provides that. You can implement, augment or override almost all behaviour very little code if you inherit from an existing VFS.
Can you restate your problem since it isn't clear who you think is going to write to the database in the first place? Since the database can't be changed they also want to compress it.
You can buy an extension written by the SQLite authors themselves that let you do this. It also lets you do encryption: Alternatively if your time has no value you could code something similar yourself if that is what your needs are.We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message.
Try a sample exception.
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Databases ERROR: Attempt to write a readonly database (8).
Hi, I am trying to update an SQLite 3 database in ASP (code attached) having made t, ID # i using sqlite database in wpf windows application. after installing windows application database inside folder this: static sqliteconnection dbconnection = new sqliteconnection(@"data source=c:\program files (x86)\hedronix\qscan\test.s3db;");.