January 2019
Beginner
556 pages
14h 19m
English
Content preview from Learning PostgreSQL 11 - Third Edition
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Questions
- What are the advantages and disadvantages of using rich data types? Consider the following comparison criteria: data consistency and sanity checks, performance, flexibility, and lack of requirements.
- What's the difference between the JSON and JSONB data types?
- What functions can be used to convert a row into JSON?
- Hstore, JSON, and JSONB are candidates for storing a document in PostgreSQL. Which data type should be considered the default choice and why?
- How can you sort and apply an aggregate function to an array?
- In PostgreSQL, what's the equivalent of the IN set operator? Rewrite the WHERE model IN ('Ford', 'VW') expression using arrays.
- Give a business use case for text search.
- Explain the difference between plainto_tsquery ...
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