What are the execution control statements?
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what is the use of composite key constraint?
SELECT * FROM (SELECT TITLE FROM MOVIE ORDER BY RANK DESC) WHERE ROWNUM > 4; when i run the above query .it produces output as NO ROWS SELECTED.why ?plz any one help me
What are various joins used while writing SUBQUERIES?
How to write a left outer join with the where clause in oracle?
What are the restrictions in a oracle read only transaction?
How to update values in a table in oracle?
What is the difference between count (*), count (expression), count (distinct expression)?
How do I connect to oracle?
What is a OUTER JOIN?
How to define a record variable to store a table row?
How oracle handles dead locks?
What are the types of Database Links ?