What is data abstraction in sql?


No Answer is Posted For this Question
Be the First to Post Answer

Post New Answer

More SQL PLSQL Interview Questions

State the advatage and disadvantage of Cursor's?

2 Answers  


Is grant a ddl statement?

0 Answers  


How to get second highest salary from a table

3 Answers  


How many aggregate functions are available there in sql?

0 Answers  


how to retrieve last tree records from table? select *from emp where rownum > (select count(*)-3 from emp); i am using this query to get last three records from table but its not giving any output, so please tell me what is the error in this query.

16 Answers  






I have a small PL/SQL Block assume in this way begin select * from emp where empno=100; exception when others then <Some Messages> when no_data_found then <Some Messages> when too_many_rows then <Some Messages> end; The question which he asked was whether this block will get executed normally or it will throw error ? If errored out then what is the reason for the error ? Could anybody please help me ? Regards Nakul Venkataraman

3 Answers   Satyam,


What is the use of cursor ? how cursor allocate context area for executing the sql statement?

4 Answers   HCL,


What is the best partition size for windows 10?

0 Answers  


how can we submit a form without a submit button? : Sql dba

0 Answers  


What is a memo field?

0 Answers  


What is pls integer?

0 Answers  


display null value rows with out using null function?

8 Answers   Infosys,


Categories