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How to Resolve -206 SQL Error Object-Not-Valid in DB2

Here is a resolution for SQL error -206. You will get an error of object is not valid. Here are possible reasons for this error. Also given solution for how to fix it.

3 File Descriptors in Unix Operating System: What They Mean

How to use file descriptors in Unix is explained in this post. Unix supports three types. Here is an example that shows how it works.

Shell Script Tricky Question – Duplicate Functions

Here is a tricky shell script question. What happens if you give duplicate function names in the script.

13 Tricky AWS Simple Workflow Interview Questions

Here are 13 tricky AWS Simple workflow service interview questions. These are useful for AWS interviews.

Important Things to Consider Before Buying a House or Selling Land

Here are two top formulas you can use to decide how to buy a house. Also, it helps to sell land. These are useful for everyone.

How to Write IF Conditions Correctly ( And Vs. Or)

Here’s the best way to use ‘and’ condition. Also, this example shows the best way to use the ‘or’ condition in COBOL.

VSAM Here’s All About RBA – And RRN

Here’s a difference between VSAM HURBA and HARBA and its calculation. It’s useful for interviews.

5 Things You Should Know On AWS Database Service

Amazon RDS provides Database services. DB instance is the basic building block. Here you will know the top five features of it.

Kafka Streaming Here is an Example

Kafka Streaming API uses streams data and do processes them and sends them to output servers. Here’s how to understand streaming API.

How to Map IMS DB Segment Data to COBOL Copy Book

Here is an idea how to view segment data using file-aid for IMS DB

RESTful API Vs Webservices Top Differences

Here are details about REST and Web services with their features. The skill to develop APIs is hot in the market.

Microservices Here’s a Way to Build Quickly

Micro-services development is an evolving area. It needs more people to work. Here are the skills to improve for better salaries.