1. What is interface how to use? 2. Tell me a small example for interface? 3. How to managing the Error Logging system at your application 4. How you implement Security at your application 5. What are the Joins why we use joins in sql server

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An interface is a contract between two objects that defines the communication between them
An example of an interface is the Java interface, which defines a set of methods that a class must implement
Error logging can be managed by setting up a system to capture and store error messages, and regularly reviewing and addressing them
Security can be implemented through measures such as authentication, authorization, encryption, and regular security audits
Joins are used in SQL server to combine data from two or more tables based on a common column

1. What is interface how to use? 2. Tell me a small example for interface? 3. How to managing the Error Logging system at your application 4. How you implement Security at your application 5. What are the Joins why we use joins in sql server

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