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## SQLite C Interface

## Flags For File Open Operations

>     #define SQLITE_OPEN_READONLY         0x00000001  /* Ok for sqlite3_open_v2() */
>     #define SQLITE_OPEN_READWRITE        0x00000002  /* Ok for sqlite3_open_v2() */
>     #define SQLITE_OPEN_CREATE           0x00000004  /* Ok for sqlite3_open_v2() */
>     #define SQLITE_OPEN_DELETEONCLOSE    0x00000008  /* VFS only */
>     #define SQLITE_OPEN_EXCLUSIVE        0x00000010  /* VFS only */
>     #define SQLITE_OPEN_AUTOPROXY        0x00000020  /* VFS only */
>     #define SQLITE_OPEN_URI              0x00000040  /* Ok for sqlite3_open_v2() */
>     #define SQLITE_OPEN_MEMORY           0x00000080  /* Ok for sqlite3_open_v2() */
>     #define SQLITE_OPEN_MAIN_DB          0x00000100  /* VFS only */
>     #define SQLITE_OPEN_TEMP_DB          0x00000200  /* VFS only */
>     #define SQLITE_OPEN_TRANSIENT_DB     0x00000400  /* VFS only */
>     #define SQLITE_OPEN_MAIN_JOURNAL     0x00000800  /* VFS only */
>     #define SQLITE_OPEN_TEMP_JOURNAL     0x00001000  /* VFS only */
>     #define SQLITE_OPEN_SUBJOURNAL       0x00002000  /* VFS only */
>     #define SQLITE_OPEN_SUPER_JOURNAL    0x00004000  /* VFS only */
>     #define SQLITE_OPEN_NOMUTEX          0x00008000  /* Ok for sqlite3_open_v2() */
>     #define SQLITE_OPEN_FULLMUTEX        0x00010000  /* Ok for sqlite3_open_v2() */
>     #define SQLITE_OPEN_SHAREDCACHE      0x00020000  /* Ok for sqlite3_open_v2() */
>     #define SQLITE_OPEN_PRIVATECACHE     0x00040000  /* Ok for sqlite3_open_v2() */
>     #define SQLITE_OPEN_WAL              0x00080000  /* VFS only */
>     #define SQLITE_OPEN_NOFOLLOW         0x01000000  /* Ok for sqlite3_open_v2() */
>     #define SQLITE_OPEN_EXRESCODE        0x02000000  /* Extended result codes */

These bit values are intended for use in the 3rd parameter to the sqlite3_open_v2() interface and in the 4th parameter to the sqlite3_vfs.xOpen method.

Only those flags marked as "Ok for sqlite3_open_v2()" may be used as the third argument to the sqlite3_open_v2() interface. The other flags have historically been ignored by sqlite3_open_v2(), though future versions of SQLite might change so that an error is raised if any of the disallowed bits are passed into sqlite3_open_v2(). Applications should not depend on the historical behavior.

Note in particular that passing the SQLITE_OPEN_EXCLUSIVE flag into sqlite3_open_v2() does *not* cause the underlying database file to be opened using O_EXCL. Passing SQLITE_OPEN_EXCLUSIVE into sqlite3_open_v2() has historically been a no-op and might become an error in future versions of SQLite.

See also lists of Objects, Constants, and Functions.