Technology Questions

The object need to be serialized when it’s sent over a network and when it’s state is saved. Exceptions which occur during serialization are:

a. transient fields

b. when the base class is serialized then only base class fields are handled.

c. static fields are ignored because they are not part of any state.

We use SQLPASSTHROUGH options when we need applications to access data both in the front-end and back-end data servers with a single connection. SQL statements that cannot be executed in the solidDB front-end server are passed over to the back end. 

SQLPASSTHROUGH mode can be set as per session or per transaction. The connection between the front end and back end is made with a back-end compatible ODBC driver which is loaded dynamically in solidDB server.

The following are the ways of initiating a CICS transaction.

1. By entering Transaction Id

2. By Start command

3. By Return Trans Id (as in pseudo - conversation)

4. By Registering Tran ID in plt so that it will be automaticaly dusring CICS start

5. By ATI (Automatic task initiation)

6.PF & PA keys as defined in PCT

Generation of HTML pages on-the-fly without accessing the Web server. The user can be given control over the browser like User input validation Simple computations can be performed on the client's machine The user's browser, OS, screen size, etc. can be detected Date and Time Handling

Kano analysis is a systems analysis tool used to identify its impact on customer’s satisfaction based on 3 key areas: unexpected delighters, performance attributes and must have attributes.

Use SELECT DISTINCT ..... in DB2 query

The DISTINCT keyword can be used to return only distinct (different) values.

Syntax:

     SELECT DISTINCT column1,column2

      FROM table_name;

The Asynchronous Transfer Mode or ATM is a connection technology that works by transmitting data into organized 53 bytes (small) packages through a physical environment with a high efficiency. Packing data into small cells reduces transportation delay so the speeds reached by this technology are very high; it can reach even 10 Gb per second.

SELECT * FROM table_name ORDER BY column_name desc Fetch first 5 rows only;