Difference between delete and truncate in oracle database ?- SQL Interview question

In my previous blog , I have written about the future of oracle dbs jobs. If you are going for sql or oracle interview then most of the interviewer expect that you... Read more »

How to copy data from one table to another ?- SQL Interview question

Read more »

Difference between delete and truncate sql command- Interview question

Read more »

Primary Key,Unique Key ,Null Key in SQL

Read more »

Querying on CSV file using Spark SQL

Apache Spark SQL is a Spark module to simplify working with structured data using DataFrame and DataSet abstractions in Python, Java, and Scala. These abstractions are the distributed collection of data organized... Read more »