What is the scope of BIG DATA and Hadoop.?

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In 2018, the global Big Data and business analytics market stood at US$ 169 billion and by 2022, it is predicted to grow to US$ 274 billion. Moreover, a PwC report predicts that by 2020, there will be around 2.7 million job postings in Data Science and Analytics in the US alone.
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My name is Rajesh , working as a Recruiter from past 6 years and thought to change my career into software (development / admin/ testing ) am seeking for some suggestion which technology I need to learn ? Any job after training ? Or where I can get job within 3 months after finishing my training programme- your advices are highly appreciated
Mr rajesh if you want to enter in to software Choose SAP BW AND SAP HANA because BW and HANA rules the all other erp tools next 50 years.it provides rubust reporting tools for quicker decesion of business It very easy to learn
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Is it worth to switch from manual testing to Hadoop?
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