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SQLite C Interface

Deserialize a database

int sqlite3_deserialize(
  sqlite3 *db,            /* The database connection */
  const char *zSchema,    /* Which DB to reopen with the deserialization */
  unsigned char *pData,   /* The serialized database content */
  sqlite3_int64 szDb,     /* Number bytes in the deserialization */
  sqlite3_int64 szBuf,    /* Total size of buffer pData[] */
  unsigned mFlags         /* Zero or more SQLITE_DESERIALIZE_* flags */

The sqlite3_deserialize(D,S,P,N,M,F) interface causes the database connection D to disconnect from database S and then reopen S as an in-memory database based on the serialization contained in P. The serialized database P is N bytes in size. M is the size of the buffer P, which might be larger than N. If M is larger than N, and the SQLITE_DESERIALIZE_READONLY bit is not set in F, then SQLite is permitted to add content to the in-memory database as long as the total size does not exceed M bytes.

If the SQLITE_DESERIALIZE_FREEONCLOSE bit is set in F, then SQLite will invoke sqlite3_free() on the serialization buffer when the database connection closes. If the SQLITE_DESERIALIZE_RESIZEABLE bit is set, then SQLite will try to increase the buffer size using sqlite3_realloc64() if writes on the database cause it to grow larger than M bytes.

The sqlite3_deserialize() interface will fail with SQLITE_BUSY if the database is currently in a read transaction or is involved in a backup operation.

If sqlite3_deserialize(D,S,P,N,M,F) fails for any reason and if the SQLITE_DESERIALIZE_FREEONCLOSE bit is set in argument F, then sqlite3_free() is invoked on argument P prior to returning.

This interface is only available if SQLite is compiled with the SQLITE_ENABLE_DESERIALIZE option.

See also lists of Objects, Constants, and Functions.