Oracle General Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Oracle General Interview Questions

Questions Answers Views Company eMail

What is set operator oracle?

987

What is where clause in oracle?

1032

Which is faster join or subquery in oracle?

998

What is a lookup table in oracle?

974

How to resolve the ORA-39133 error in Oracle?

1126

What are the different types of databases?

1 1222

What are ACID properties in databases?

1 2897

What is the difference between INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN?

1 1226

What is indexing, and how does it improve performance?

1 1105

What is a deadlock in SQL? How can you prevent it?

1 3194

What is the CAP theorem?

1 1122

How would you optimize a slow SQL query?

1 3183

How do you handle duplicate records in a database?

1 1068

How would you design a database for an e-commerce website?

1 1071

How do you ensure database security?

1 1220

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Un-Answered Questions { Oracle General }

What is the difference between substr & instr functions?

1233

Explain the blob datatype?

1078

How to open and close an explicit cursor in oracle?

1059

What is merge in oracle?

1057

What is a proxy class?

1059

Hi Can any one tell me what are the API's used in requisition import.

1926

What is dual table oracle?

991

How do you get nicely formatted results from an oracle procedure that returns a reference cursor?

1083

Is it possible to set second Primary Key Constraint in a table in Oracle Database ?

1153

What are transaction isolation levels supported by oracle?

1075

What are the differences between char and varchar2 in oracle?

1177

What is a proxy object?

1071

Why is oracle so popular?

1005

What is oracle update statement with inner join ?

1067

How to convert characters to times in oracle?

1023

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