設置爲數據庫（Sybase無線平臺）

Question

目前我能夠做設置加密密鑰爲我的本地數據庫以下加密密鑰：

if(![MyDemo_MyDemoDB databaseExists]){ 
     SUPConnectionProfile* cp = [MyDemo_MyDemoDB 
            getConnectionProfile]; 
     [cp setEncryptionKey:@"Yourkey"]; 
     [MyDemo_MyDemoDB closeConnection]; 
    } 

所以，當我的用戶成功登錄（通過爲SUPDataVault正確的密碼），我收到以下錯誤：

ERROR sup_sqlite_db_ConnectionWrapperImpl.m:62 dynamicStatement: There is an exception file is encrypted or is not a database 
2011-12-21 13:32:05.112 MyDemo10389:11603 MBODebugLogger: SUPPersistenceException SUPPersistenceException from find: -- sup_sqlite_db_StatementWrapperImpl: There is an exception null value for sqlite3_stmt 
2011-12-21 13:32:05.225 MyDemo10389:11603 *** Terminating app due to uncaught exception 'SUPPersistenceException', reason: 'SUPPersistenceException from find: -- sup_sqlite_db_StatementWrapperImpl: There is an exception null value for sqlite3_stmt' 

我認爲正在發生的是，雖然數據庫已成功創建，其仍加密。我如何解密它？

Answer 1

它實際上，我只需要做到這一點，每次我開始一個會話很簡單：

SUPConnectionProfile* cp = [MyDemo_MyDemoDB 
            getConnectionProfile]; 
[cp setEncryptionKey:@"Yourkey"];