What is an oracle cursor variable?
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State and explain the different types of data models?
How many file formats are supported to export data?
In which language oracle has been developed?
What is a sub query and what are the different types of subqueries?
what are the advantages of running a database in NO archive log mode?
How to check the oracle tns settings?
Provide an example of a shell script which logs into SQLPLUS as SYS, determines the current date, changes the date format to include minutes & seconds, issues a drop table command, displays the date again, and finally exits.
Explain oracle instance.
where we have to use ON clause and where we have to use USING clause in JOINS
What is an anonymous block?
In not less than 100 words what's the main difference between Rolap and Molap in ORACLE ?
The table has 3 columns 4 rows. The output is which column has least null values( A COL SHOULD BE THE OUTPUT) Write the query plz. A B C ================ 1 NULL 2 NULL 3 4 NULL 5 6 7 NULL NULL O/P C = 2 4 6