Ques:- What is the difference between setMaxRows(int) and SetFetchSize(int)? Can either reduce processing time?
Ques:- Can I use JDBC to execute non-standard features that my DBMS provides?
Ques:- How many types of JDBC Drivers are present and what are they?
Ques:- With EJB 1.1 specs, why is unsetSessionContext() not provided in Session Beans, like unsetEntityContext() in Entity Beans?
Ques:- How do I mix JSP and SSI #include?
Ques:- How do you call stored procedures from JSP?
Ques:- Why are ejbActivate() and ejb Passivate() included for stateless session bean even though they are never required as it is nonconversational bean?
Ques:- What type of support is provided to SAP Customers building solutions using SAP JCo? Do SAP Customers need to purchase a support contract?
Asked In :-
Unistring Tech Solutions, Knot Solutions, Java R&D, Axiscades Engineering Technologies, infrasoft technologies, cd projekt red, fission labs, juspay, core ecs,
Ques:- How long does the initial install take?
Ques:- How can I protect my database password ? I'm writing a client-side java application that will access a database over the internet. I have concerns about the security of the database passwords. The client will have access in one way or another to the class files, where the connection string to the database, including user and password, is stored in as plain text. What can I do to protect my passwords?
Asked In :-
Highbar Technocrat, Able Design Engineering Services,
Ques:- How do you restrict page errors display in the JSP page?
Asked In :-
AMITY SOFTWARE SYSTEMS LIMITED, vassar labs,
Ques:- How can resultset records be restricted to certain rows?
Right Answer:
You can restrict ResultSet records to certain rows by using SQL queries with the `LIMIT` clause (in databases like MySQL) or `ROWNUM` (in Oracle) or by using pagination techniques with `OFFSET` and `FETCH` in SQL Server and PostgreSQL. For example:
```sql
SELECT * FROM table_name LIMIT 10 OFFSET 20; -- MySQL
```
or
```sql
SELECT * FROM table_name WHERE ROWNUM <= 10; -- Oracle
```
You can restrict ResultSet records to certain rows by using SQL queries with the `LIMIT` clause (in databases like MySQL) or `ROWNUM` (in Oracle) or by using pagination techniques with `OFFSET` and `FETCH` in SQL Server and PostgreSQL. For example:
```sql
SELECT * FROM table_name LIMIT 10 OFFSET 20; -- MySQL
```
or
```sql
SELECT * FROM table_name WHERE ROWNUM <= 10; -- Oracle
```
Ques:- Elementary search helps, Collective search help.
Ques:- Is there a way I can set the inactivity lease period on a per-session basis?
Asked In :-
Marble Box,
Ques:- What is the abstraction? Give example?
Asked In :-
Right Answer:
Abstraction is a programming concept that focuses on hiding the complex implementation details and showing only the essential features of an object. For example, in Java, an abstract class or interface can be used to define methods that must be implemented by subclasses, while the specific details of those methods are hidden.
Example:
```java
abstract class Animal {
abstract void sound(); // abstract method
}
class Dog extends Animal {
void sound() {
System.out.println("Bark");
}
}
```
Abstraction is a programming concept that focuses on hiding the complex implementation details and showing only the essential features of an object. For example, in Java, an abstract class or interface can be used to define methods that must be implemented by subclasses, while the specific details of those methods are hidden.
Example:
```java
abstract class Animal {
abstract void sound(); // abstract method
}
class Dog extends Animal {
void sound() {
System.out.println("Bark");
}
}
```
Ques:- Without home and remote interfaces cant we implement ejb?
Asked In :-
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