If this option is set to an empty string the default VFS object is used. The psow parameter indicates whether or not the powersafe overwrite property does or does not apply to the storage media on which the database file resides.
Future versions of SQLite might understand additional query parameters. The mode parameter may be set to either "ro", "rw", "rwc", or "memory". See " query parameters with special meaning to SQLite " for additional information.
The immutable parameter is a boolean query parameter that indicates that the database file is stored on read-only media.
The fragment component of a URI, if present, is ignored. Specifying an unknown parameter in the query component of a URI is not an error. The cache parameter may be set to either "shared" or "private". Specifying an unknown VFS is an error. The nolock parameter is a boolean query parameter which if set disables file locking in rollback journal modes.
If the filename is an empty string, then a private, temporary on-disk database will be created. If the authority is not an empty string or "localhost", an error is returned to the caller. On windows, the first component of an absolute path is a drive specification e.
This is useful for accessing a database on a filesystem that does not support locking. If the mode option is set to "memory" then a pure in-memory database that never reads or writes from disk is used. The "vfs" parameter may be used to specify the name of a VFS object that provides the operating system interface that should be used to access the database file on disk.
When immutable is set, SQLite assumes that the database file cannot be changed, even by a process with higher privilege, and so the database is opened read-only and all locking and change detection is disabled. It is recommended that when a database filename actually does begin with a ": This private database will be automatically deleted as soon as the database connection is closed.
Attempting to set it to any other value is an error. If the filename is ": This in-memory database will vanish when the database connection is closed.
See " URI filenames " for additional information.error "attempt to write a readonly database". I have a database I have created and populated with various tables and data. I now want to create a new table and I get.
Jul 03, · This thread is locked. You can follow the question or vote as helpful, but you cannot reply to this thread. Oops, my bad. My account don't have the permission to run 'svn update'. Now it works again.
i am very sorry for the inconvenience. I keep getting "Fatal Error! attempt to write a readonly database" I reinstalled 3 times and uninstalled once. I dont have a database. This. mi-centre.comeption:[SQLITE_READONLY] Attempt to write a readonly database.
I tried searching for solutions, but I found solutions like changing the permissions. I did change the permissions of the db as well as the containing folder in windows. Participate in discussions with other Treehouse members and learn.Download