What is the difference between count (*), count (expression), count (distinct expression)?
No Answer is Posted For this Question
Be the First to Post Answer
Are truncate and delete commands same? If so why?
What is a data lock in oracle?
Why do I get java.lang.abstractmethoderror when trying to load a blob in the db?
What is the quickest way to export a table to a flat file?
What privilege is needed for a user to query tables in another schema?
Calculate difference between 2 date / times in oracle sql?
How to create lov dynamically at runtime & attach to text field?
How to define an anonymous procedure without variables?
what is host string in sql plus? how does it related to database?
What is Normalization ?
55 Answers ACS, Genpact, Graphix Solution, IBM, Keane India Ltd, TCS, Vault,
What are the roles of dba?
Is it possible to join two tables, that are in two different users (e.g. SCOTT and HR etc.),but im same database (e.g. ORCL)? If yes, then how it is possible? Explain with step by step procedure.