ABAP Interview Questions -SQL , Tables , Basic

 Basic Questions :

(1)Choose the menu path Tools->Administration, Monitoring->System monitoring->User overview. What is the transaction code for this transaction?
(2) What is the transaction code for the R/3 main menu? (The main menu is the first menu displayed after logon.)
(3)What is the transaction code for the menu path Tools->Development Workbench?
(4)If there are three R/3 systems in your current system landscape, how many databases are there?
(5)If an R/3 system has two application servers, how many instances does it have?
(6)What is Open SQL?
(7)What advantages does Open SQL offer over native SQL?
(8)Which part of the work process is used to implement Open SQL?
(9)When is a roll area allocated, when is it de-allocated, and what does it contain?
(10)When is a user context allocated, when is it de-allocated, and what does it contain?
(11)When does the roll-out occur, and why does it occur?
(12)What two things does the tables statement do?
(13)To what does the term default table work area refer?
(14)If the select statement is missing an into clause, where do the rows go?
(15)If a write statement does not contain a slash, is the output written to the same line as the output for the previous write statement or is it written to a new line?
(16)What is the name of the system variable that indicates whether any rows were found by the select statement?
(17)What is the name of the system variable that indicates how many rows were found by the select statement?
(18)What is the purpose of the domain?
(19)What does the data element contain?
(20)To what does the term application data refer?
(21)For fields of type DEC, is the decimal point stored with the value of the field?
(22)What are the transaction codes of the four data browsers. Which one is most commonly used, and which one cannot be used to update data?
(23)What is the difference between a transparent table and a pooled or cluster table?