definition of cluster and non-clustered index?
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How to get execution statistics reports on query statements?
What is the difference between $oracle_base and $oracle_home?
What is different types of joins?
What is the quickest way to fetch the data from a table?
> CREATE OR REPLACE FUNCTION FACTORIAL_1(factstr varchar2 ) 2 RETURN NUMBER AS 3 new_str VARCHAR2(4000) := factstr||'*' ; 4 fact number := 1 ; 5 BEGIN 6 7 WHILE new_str IS NOT NULL 8 LOOP 9 fact := fact * TO_NUMBER(SUBSTR(new_str,1,INSTR(new_str,'*')-1)); 10 new_str := substr( new_str,INSTR(new_str,'*')+1); 11 END LOOP; 12 13 RETURN fact; 14 15 END; explanation Above program?
What does sharding mean?
Define the terms primary key foreign key and also the difference between primary and the unique key
What do you mean by merge in oracle and how can you merge two tables?
How to use an explicit cursor without open statements?
how to retrieve data from different tables ,place this data in different excel worksheets.
What are the differences between date and timestamp in oracle?
What are advantages fo Stored Procedures?