Method execute

examples/dbcrypt/CryptApplication.cpp:105–197

	//				passed to target database when using execute statement)

	void execute(const char* dbName, const Action a)
	{
		status->init();

		p = master->getDispatcher();

		p->setDbCryptCallback(status, &key);
		if (status->getState() & IStatus::STATE_ERRORS)
			throw "setDbCryptCallback";

		char s[256];
		sprintf(s, "localhost:%s", dbName);
		att = p->attachDatabase(status, s, 0, NULL);
		if (status->getState() & IStatus::STATE_ERRORS)
			throw "attachDatabase";

		if (a != NONE)
		{
			tra = att->startTransaction(status, 0, NULL);
			if (status->getState() & IStatus::STATE_ERRORS)
				throw "startTransaction";
		}

		switch(a)
		{
		case ENC:
			att->execute(status, tra, 0,
				"ALTER DATABASE ENCRYPT WITH \"fbSampleDbCrypt\"", 3, NULL, NULL, NULL, NULL);
			if (status->getState() & IStatus::STATE_ERRORS)
				throw "execute";
			break;

		case DEC:
			att->execute(status, tra, 0, "ALTER DATABASE DECRYPT", 3, NULL, NULL, NULL, NULL);
			if (status->getState() & IStatus::STATE_ERRORS)
				throw "execute";
			break;

		case EX_LCL:
		case EX_RMT:
		  {
			FB_MESSAGE(Output, CheckStatusWrapper,
				(FB_VARCHAR(31), logon)
			) output(status, master);

			const char* sqlL = "select current_user from rdb$database";
			const char* sqlR = "execute block returns(logon varchar(31)) as begin "
				"execute statement 'select current_user from rdb$database' "
				"on external 'localhost:employee' as user 'test' password 'test' into :logon; "
				"suspend; end";
			const char* sql = a == EX_LCL ? sqlL : sqlR;

			curs = att->openCursor(status, tra, 0, sql, 3, NULL, NULL, output.getMetadata(), NULL, 0);
			if (status->getState() & IStatus::STATE_ERRORS)
				throw "openCursor";

			printf("\nExec SQL: %s\nReturns:\n", sql);
			while (curs->fetchNext(status, output.getData()) == IStatus::RESULT_OK)