How many rows will return from dual table?
Answers were Sorted based on User's Feedback
Answer / sen
SELECT ROWNUM, LEVEL
FROM DUAL
CONNECT BY LEVEL < 5;
Is This Answer Correct ? | 9 Yes | 2 No |
Answer / manoj
Any single row manipulation will work with dual. So only one
out put will work.
Is This Answer Correct ? | 6 Yes | 1 No |
Answer / amit kumar shrivastava
Oracle Provide DUAL table with only one row and one column.
So it will always return one row.
Is This Answer Correct ? | 1 Yes | 0 No |
What is primary key and foreign key with example?
Explain spool.
Differences between Oracle 9i and 10g (Probably in terms of SQL and PL/SQL)?
Define select, insert, create, delete, update, drop keywords
what does it mean to have quoted_identifier on? What are the implications of having it off? : Sql dba
What is auto increment in sql?
How do you change a value in sql?
what are the differences between char and nchar? : Sql dba
Do we need to rebuild index after truncate?
How to write pl sql program in mysql command prompt?
What is mutating error?
How many primary keys can a table have?