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Table 3 Response times in seconds of the six queries performed on MongoDB NoSQL database

From: Examining database persistence of ISO/EN 13606 standardized electronic health record extracts: relational vs. NoSQL approaches

MongoDB

5000

10,000

20,000

slope (*10 −6 )

Q1

0.0460

0.0570

0.1221

5.07

Q2

34.5181

68.6945

136.2329

6780.99

Q3

0.0480

0.0580

0.1201

4.81

Q4

0.0520

0.0610

0.1241

4.81

Q5

38.0202

75.4376

149.9330

7460.85

Q6

9.5153

18.5566

36.7805

1817.68

Database size

1.95GB

3.95GB

7.95GB

 

Total extracts

5000

10,000

20,000

 
  1. *stands for the multplication sign