Closing A Database Connection
int sqlite3_close(sqlite3 *);
The sqlite3_close() routine is the destructor for thesqlite3object. Calls to sqlite3_close() return sqlITE_OK if thesqlite3object is successfully destroyed and all associated resources are deallocated.
Applications mustfinalizeallprepared statementsandcloseallBLOB handlesassociated with thesqlite3object prior to attempting to close the object. If sqlite3_close() is called on adatabase connectionthat still has outstandingprepared statementsorBLOB handles,then it returns sqlITE_BUSY.
Ifsqlite3_close()is invoked while a transaction is open,the transaction is automatically rolled back.
The C parameter tosqlite3_close(C)must be either a NULL pointer or ansqlite3object pointer obtained fromsqlite3_open(),sqlite3_open16(),orsqlite3_open_v2(),and not prevIoUsly closed. Calling sqlite3_close() with a NULL pointer argument is a harmless no-op.
