What is the difference between pre-select and pre-query?
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What are the ansi data types supported in oracle?
What do you understand by a database object?
I have query like this. select dept_id, max_mark from stude_dept where min_mark= (select min(mini_mark) from stud_dept); How can i optimize this query. Can anyone help me with it
What are the differences between interval year to month and interval day to second?
select * from emp what happened internally when we write this query in the sql prompt?
What is meant by joins? List out the types of joins.
What is the string concatenation operator in oracle?
What is index-organized table in Oracle?
Table Has C1 And C2 Column If Exits any record in c1 then Update c2 record Otherwise insert new record in the C1 And C2 (Using Procedure)
How to define Data Block size ?
What is meant by joins?
Explain the use of rows option in exp command.