Oracle Reports Interview Questions and Answers

What are various types of parameters ?

There are two types of parameters:

• default (system parameters)
• user-created (bind and lexical parameters)

Apart from the global report triggers what are the other triggers used in Oracle Reports?

Other types of triggers :
Validation Triggers-
Validation Triggers are PL/SQL functions that are executed when parameter values are specified on the command line and when you accept the Runtime Parameter Form.

Format Triggers-
Format Triggers are PL/SQL functions executed before the object is formatted. The trigger can be used to dynamically change the formatting attributes of the object.

How do you display a message in reports?
Using SRW.Message
Name some of the procedures in the SRW package ?
SRW.Message, SRW.User_Exit, SRW.Do_Sql, SRW.Run_Report
What is SRW Package?
The Report builder Built in package know as SRW Package (Sql Report Writer) This package extends reports, Control report execution, output message at runtime, Initialize layout fields, Perform DDL statements used to create or Drop temporary table, Call User Exit, to format width of the columns, to page break the column, to set the colors Ex: SRW.DO_SQL, It’s like DDL command, we can create table, views, etc.
What is User Parameters?
Parameter, which is created by user. For to restrict values with where clause in select statement. We can use Lovs in user parameter with static and Dynamic Select Statement.
What is System Parameters?

These are built-in parameters provided by Oracle corporation.
BACKGROUND: Is whether the report should run in the foreground or the background.

COPIES Is the number of report copies that should be made when the report is printed.

DESFORMAT Is the definition of the output devices format (e.g., landscape mode for a printer). This parameter is used when running a report in a character-mode environment, and when sending a bitmap report to a file (e.g. to create PDF or HTML output).

DESNAME Is the name of the output device (e.g., the file name, printers name, mail userid).

DESTYPE Is the type of device to which to send the report output (screen, file, mail, printer, or Screen using PostScript format).

MODE Is whether the report should run in character mode or bitmap.

ORIENTATION Is the print direction for the report (landscape, portrait,default).

PRINTJOB Is whether the Print Job dialog box should appear before the report is run

What are the different types of anchors in Reports?
A There are two types of anchors in Oracle Reports: Implicit (Creates when a report will run) Explicit (Anchors you create)
What is the difference between Bind and Lexical parameter?

1-Bind parameters are used to replace a single value in SQL or PL/SQL, such as a character string, number, or date.
2-Lexical parameters are placeholders for text that you embed in a SELECT statement. Use Lexical reference when you want the parameter to substitute multiple values at runtime. You can use lexical references to replace the clauses appearing after SELECT, FROM, WHERE, GROUP BY, ORDER BY, HAVING, CONNECT BY, and START WITH.

How can you print one record per page in the output?
You can set the maximum records per page property of the Repeating frame to

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Pipes and Cistern

Two pipes A and B can fill a tank in 6 hours and 4 hours respectively. If they are opened on alternate hours and if pipe A s opened first, in how many hours, the tank shall be full?

A large tanker can be filled by two pipes A and B in 60 min and 40 min respectively. How many minutes will it take to fill the tanker from empty state if B is used for first half of the time, and A and B fill it together for the other half?

A tank is filled by 3 pipes with uniform flow. The first two pipes operating simultaneously fill the tank in the same time during which the tank is filled by the third pipe alone. The 2nd pipe fills the tank 5 hours faster than first pipe and 4 hours slower than third pipe. The time required by first pipe is?

Two pipes A and B together can fill a cistern in 4 hours. Had they been opened separately, then B would have taken 6 hours more than A to fill the cistern. How much time will be taken by A to fill the cistern separately?

Two pipes A and B can fill a tank in 24 min and 32 min respectively. If both the pipes are opened simultaneously, after how much time B should be closed so that the tank is full in 18 min?

Two pipes A and B can fill a tank in 36 min and 45 min respectively. A water pipe C can empty the tank in 30 min. First A and B are opened. after 7 min, C is also opened. In how much time, the tank is full?

Two pipes can fill a cistern in 14 hours and 16 hours respectively. The pipes are opened simultaneously and it is found that due to leakage in the bottom it took 32 min more to fill the cistern. When the cistern is full, in what time will the leak empty it?

Bucket P has thrice the capacity as Bucket Q. It takes 60 turns for Bucket P to fill the empty drum. How many turns it will take for both the buckets P and Q, having each turn together to fill the empty drum?

Probability

In a class , 30 % of the students offered English, 20 % offered Hindi and 10 % offered Both.If a student is offered at random, what is the probability that he has offered English or Hindi?

In a lottery ,there are 10 prizes and 25 blanks.A lottery is drawn at random. what is the probability of getting a prize ?

Two dice are thrown simultaneously .what is the probability of getting two numbers whose product is even?

Two diced are tossed the probability that the total score is a prime number?

Two cards are drawn at random from a pack of 52 cards What is the probability that either both are black or both are queens?

Two dice are thrown together .What is the probability that the sum of the number on the two faces is divisible by 4 or 6?

A bag contains 6 white and 4 black balls .Two balls are drawn at random .Find the probability that they are of the same colour?

In a simultaneous throw of a pair of dice,find the probability of getting a total more than 7?

An unbiased die is tossed.Find the probability of getting a multiple of 3?

Problems on Ages

My brother is 3 years elder to me. My father was 28 years of age when my sister was born while my mother was 26 years of age when i was born. If my sister was 4 years of age when my brother was born,then what was the age my father and mother respectively when my brother was born?

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