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Q:

Difference between Union and Union all?

Answer

The difference between Union and Union all is that Union all will not eliminate duplicate rows, instead it just pulls all rows from all tables fitting your query specifics and combines them into a table. A UNION statement effectively does a SELECT DISTINCT on the results set.

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Subject: Oracle Certification
Job Role: Analyst , Database Administration , IT Trainer , Software Architect

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Q:

The Daily Weather Map of India is prepared and printed at___________

A) Kolkata B) Mumbai
C) New Delhi D) Pune
 
Answer & Explanation Answer: D) Pune

Explanation:
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Filed Under: Indian Geography
Exam Prep: Bank Exams

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Q:

The energy in most ecosystems comes from

A) Water B) Carbon dioxide
C) Sun D) Soil
 
Answer & Explanation Answer: C) Sun

Explanation:

The energy in most ecosystems comes from sun light.

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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank Clerk , Bank PO

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Q:

Which of the following is a healthy blood pressure level?

A) 120/80 mmHg B) 140/90 mmHg
C) 90/60 mmHg D) 120/140 mmHg
 
Answer & Explanation Answer: A) 120/80 mmHg

Explanation:

Healthy blood pressure ranges from 120/80 to 90/60.

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Filed Under: General Science
Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank Clerk , Bank PO

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Q:

The term ageism refers to

A) judging people on the basis of chronological age B) the demographics of the population pyramid
C) the veneration of the elderly D) the view of society held by older people
 
Answer & Explanation Answer: A) judging people on the basis of chronological age

Explanation:

The term ageism refers to judging people on the basis of chronological age. It is a discrimination against individuals or groups on the basis of their age.

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Filed Under: General Science
Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank Clerk

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Q:

A sentence has been given in Direct/Indirect Speech. Out of the four given alternatives, select the one which best expresses the same sentence in Indirect/Direct Speech.

He says, “I am a little bit afraid.”

 

A) He was a little bit afraid, he said. B) He said he was afraid.
C) He says that he is a little bit afraid. D) He says that he was a little bit afraid.
 
Answer & Explanation Answer: C) He says that he is a little bit afraid.

Explanation:
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Filed Under: English
Exam Prep: Bank Exams , GRE

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Q:

Innate immune system defenses include

A) phagocytosis B) B cells
C) plasma cells D) T cells
 
Answer & Explanation Answer: A) phagocytosis

Explanation:
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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

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Q:

In the following question, out of the given four alternatives, select the one which best expresses the meaning of the given word

Arbitrary

A) Methodical B) Penetrable
C) Random D) Artful
 
Answer & Explanation Answer: C) Random

Explanation:
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Filed Under: English
Exam Prep: CAT , GRE , TOEFL
Job Role: Bank Clerk , Bank PO

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