sqlite3_errcode(), sqlite3_extended_errcode(), sqlite3_errmsg(), sqlite3_errmsg16(), sqlite3_errstr(), sqlite3_error_offset()

 ... When the serialized threading mode is in use, it might be the case that a second error occurs on a separate thread in between the time of the first error and the call to these interfaces. When that happens, the ... 

1. File overwrite by a rogue thread or process SQLite database files are ordinary disk files. That means that any process can open the file and overwrite it with garbage. There is nothing that the SQLite library can do to defend against this.

 ... It is not safe to read or modify this variable in more than one thread at a time. It is not safe to read or modify this variable if a database connection is being used at the same time in ... 

3. Thread Related Issues In SQLite versions 3.3.0 through 3.4.2 when shared-cache mode is enabled, a database connection may only be used by the thread that called sqlite3_open() to create it. And a connection could only share cache with ... 

sqlite3_is_interrupted()

 ... It is safe to call this routine from a thread different from the thread that is currently running the database operation. But it is not safe to call this routine with a database connection that is closed or might close ... 

sqlite3_user_data()

 ... This routine must be called from the same thread in which the application-defined function is running. See also lists of Objects, Constants, and Functions.

 ... It is not safe to read or modify this variable in more than one thread at a time. It is not safe to read or modify this variable if a database connection is being used at the same time in ... 

sqlite3_get_autocommit()

 ... If another thread changes the autocommit status of the database connection while this routine is running, then the return value is undefined. See also lists of Objects, Constants, and Functions.

sqlite3_log()

 ... To avoid deadlocks and other threading problems, the sqlite3_log() routine will not use dynamically allocated memory. The log message is stored in a fixed-length buffer on the stack. If the log message is longer than a few hundred characters ... 

3.1. File and Database Connection Locking  ... This allows other threads to use database connection pDb and other connections to write to the underlying database file. If another thread or process writes to the source database while this function is sleeping, then SQLite detects this and usually ...