what is self join and how it works??
Answers were Sorted based on User's Feedback
Answer / alok kumar samartha
The concept of joining a table with itself is called self
join or inner join.It works based on the provided join condition
example:-select e1.empno employee,e2.ename manager from emp
e1,emp e2 where e2.empno=e1.mgr;
Is This Answer Correct ? | 3 Yes | 4 No |
display null value rows with out using null function?
Does sql view stored data?
What is the difference between row level and statement level trigger?
what are the advantages of cursors than procedures?
how to include comments in sql statements? : Sql dba
Can we use loop in sql?
How many sectors are in a partition?
what is user defined functions? : Sql dba
What is compilation error in pl sql?
What is a unique key?
What is an exception in pl/sql?
Which command is used to delete a package?