-
Types of indexing used in oracle applications ?andwhen and how we decide to implement indexing to database ?
bharaniprasanth
- Mar 11th, 2008
Clustered Index creates index for a single or group of keys as One Index..Nonclustered Indexes are created for indvidual columns...If th etable is real big ..better go for clustered indexes...or else non clustered...
Ram Veer Singh
- Apr 12th, 2006
There are twp type of indexing :-1. Clustered Indexing2.Unclustered Indexing
-
What is datacatching in jsp
It can store in catch and move one page to another page
bharaniprasanth
- Mar 11th, 2008
Would you please explain this with a piece of code...how can we force data caching
venkat
- Jul 21st, 2006
data cache is the technique which is used to imporve performance of the application here i mean response time,every browser has its own buffer area for cache files,if the second time we are send...
-
Suppose we have 1000 rows in the database i need to retrive 200 rows per page, then which approach is better either struts based or non struts based it is an interview question
bharaniprasanth
- Mar 11th, 2008
Using struts is always a better option...because struts is robust and completely decouples the logic(data access) part with view..Alternatively we can use POJO's for handling the tasks...I think the interviewer is refering to a design pattern you would probably use
kishor
- Jul 22nd, 2006
In case if you are using MySql database just you need to keep a hidden variable of page no and put the limit clouse in Sql query.see as like this PerPageRecord = 200RecordStartfrom = (PageNo * PerPage...
-
How many implicit variables are used in JSP?what are they?
saradakonda
- Sep 1st, 2006
Implicit objects are created by the Web container and contain information related to a particular request, page, or application. There are 9implict variablesVariableClassDescriptionapplicationjavax.se...
-
How can we move from one JSP page to another(mean using what tecnique?)
ravi
- Sep 6th, 2006
Using forward action
-
What is the differnce between application server and web server
mahesh maney
- Sep 14th, 2006
I dont think, that a web server can only handle three tier architecture
-
Can jsp session object share the ejb session object?
bharaniprasanth
- Mar 11th, 2008
U can use application object also.. if you are doubtful about session object
hari
- Sep 27th, 2006
The session object will be the same whether it is for JSP / EJB bcoz., both are from the same container, if it is from a different container
-
Hai friends,Can any one explain how websites are working,What will happen after entering website address?Please reply for my question.with regards,Rajesh
bharaniprasanth
- Mar 11th, 2008
Yes that is a nice question 1. the entered URL is transformed into a IP address using a DNS lookup server..2. The request is routed to the ip address using routers international gateways, fibew optic ...
Kumar
- Oct 3rd, 2006
When you enter an URL and hit enter, the URL wil mapped to a particular application and wil be directed to the home page of that application. When the user submits a form, the request goes to a webser...
-
When we design some login form how we manage security for those forms?which technology used for that purpose?
Mamatha. T
- Oct 10th, 2006
Suresh,can u explain it how come we achieve security using session tracking???
-
Can I call an interface in a JSP?
Pls comment
Mamatha. T
- Oct 10th, 2006
James,the question is different. and your answer is different.please dont deviate the readers.
-
C: namesList = context.listContents(someContextName);
Binding binding = namesList.next();
MyObject obj = binding.getObject();
D: namesList = context.list(someContextName);
Binding binding = namesList.next();
MyObject obj = (MyObject) binding.getObject("MyObject");
">To create a DSI (Dynamic Skeleton Interface) based server, the server must extendA: org.omg.CORBA.DynamicImplementation B: org.omg.CORBA.DynamicSkeleton C: org.omg.CORBA.SkeletonInterface D: org.omg.CORBA.DSIHow would you get the actual bound object of type MyObject using JNDI?A: namesList = context.listBindings(someContextName); Binding binding = namesList.next(); MyObject obj = (MyObject) binding.getObject(); B: namesList = context.listBindings(someContextName); Binding binding = namesList.next(); MyObject obj = binding.getObject("MyObject"); C: namesList = context.listContents(someContextName); Binding binding = namesList.next(); MyObject obj = binding.getObject(); D: namesList = context.list(someContextName); Binding binding = namesList.next(); MyObject obj = (MyObject) binding.getObject("MyObject");
-
Can jsp , servlets be extended?
bharaniprasanth
- Mar 11th, 2008
By extension if you mean reusing the code ..JSP is but Servlet cannot be..Only we can include or pass the control to another Servlet back and forth but we cannot re use it like custon tags....
atulkumar81
- May 17th, 2007
Yes, JSP is extensible, because we can use custom tag, that are user defined custom tag.
-
Identify the advantages of JSP over Servlet.a) Embedding of Java code in HTML pagesb) Platform independencec) Creation of database-driven Web applicationsd) Server-side programming capabilities
Embedding of Java code in HTML pages
bharaniprasanth
- Mar 11th, 2008
Also add this option...no need to learn Java thoroughly ...cricital concepts like inheritance..because most of it used as a view jsut to display the text or graphic results...Biggest Disadvantage is U need to mount a Big server like weblogic , websphere for a simple application...
-
How to add timer function in JSP ?
bharaniprasanth
- Mar 11th, 2008
What do u mean by Timer ..?what is the functionality u want to achieve?
-
Can I invoke a JSP error page from a servlet?
Yes, you can invoke the JSP error page and pass the exception object to it from within a servlet. The trick is to create a request dispatcher for the JSP error page, and pass the exception object as a javax.servlet.jsp.jspException request attribute. However, note that you can do this from only within controller servlets.If your servlet opens an OutputStream or PrintWriter, the JSP engine will throw...
-
How does JSP handle run-time exceptions?
You can use the errorPage attribute of the page directive to have uncaught runtime exceptions automatically forwarded to an error processing page. For example:<%@ page errorPage="error.jsp" %>redirects the browser to the JSP page error.jsp if an uncaught exception is encountered during request processing. Within error.jsp, if you indicate that it is an error-processing page, via the directive:<%@...
bharaniprasanth
- Mar 10th, 2008
Alternatively u can get Servletcontext and use the log file to push the errors to the log file..
anooptomar
- Nov 11th, 2007
You can also use "web.xml" to define your error page if you dont want to specify the error page on each page. Its scope will be your application wide so you can use.
-
What is the difference between ServletContext and ServletConfig?
Both are interfaces. The servlet engine implements the ServletConfig interface in order to pass configuration information to a servlet. The server passes an object that implements the ServletConfig interface to the servlet's init() method.The ServletContext interface provides information to servlets regarding the environment in which they are running. It also provides standard way for servlets to write...
sivachandran55
- Feb 25th, 2008
Servlet Config 1, Servlet config are one per servlet, 2, It's inside the servlet, it wont accessible to outside the servlet. ex: <servlet> <init-param> <param-name> <param-...
p_kandukuri
- Sep 12th, 2005
Every web application has one and only one ServletContext and is accessible to all active resource of that application.Every Servlet have its ServletConfig.
-
Business class & Custom tags in JSP
How to call business class in JSP?What are custom tags? How to use them? What are their uses?
-
How to retrieve every n number datas from database and to display those records on webpage using JSP method?
mn.viswa
- Jan 3rd, 2008
You can get all the datas from database using query(select). JDBC used for connection with database.u may use separate java file to specify query and to collect datas from database...
-
How to implement pagination from database level.
Please provide me any sample source code for the same
bachi14
- Dec 26th, 2007
ArrayList resultList = (ArrayList)session.getAttribute("allzones");int pageNo = a.getPageNumber();// get the pageno form ur class int recordCount=0; if(resultList!=null &...
JSP Interview Questions
Ans