1. An Introduction to: Azure Log Analytics Query Language and Yahoo Query Language (Zahra Jafari)

2. Query Language (Definition)
Computer languages used to make queries in:
Database systems
Information retrieval systems
An interface for retrieving records or part of records and performing various calculations before displaying the results

3. The Difference Information retrieval query languages:
Database query languages:
Give factual answers to factual questions
Information retrieval query languages:
Find documents containing information relevant to an area of inquiry

4. Several Samples of Query Languages
Database query languages:
Log Analytics, SQL, AQL, .QL, CQLF, CYPHER, ISBL, LINQ, LogiQL, ReQL, OQL, OPath, QUEL, SuperTool, TutorialD
Information retrieval query languages:
Azure, Azure Log Analytics, YQL, CQL, Gellish English, GraphQL, Xpath, search engines of Bing and Google

5. Query Languages Defined in the Presentation
Azure Log Analytics Query Language
Developer: Microsoft
Yahoo Query Language (YQL)
Developer: Yahoo

6. Azure Log Analytics Query Language
Azure Query Language
Azure Log Analytics Query Language
Log Analytics Query Language

7. Azure Query Language Simple query syntax
Information retrieval query language
Developer: Microsoft

8. Log Analytics Query Language
Database Query Language
Powerful features to:
Extract
Aggregate
Analyze
Visualize
Collected data

9. Azure Log Analytics Query Language
More powerful and flexible than those two query languages
Eliminating restrictions
Easy to use
Free demo environment

10. Sample Azure Log Analytics Queries
Event: returns everything in the Event table
take x: output first x elements of Event table
summarize: identifies groups of records by a common value
search: searches across all data
search in: searches in specified tables
Join: merges the records of the two data sets …

11. Yahoo Query Language (YQL)
SQL-like syntax
Access data across the web
Query, filter and combine data across the web through a single interface
Easily scrape HTML
Transform XML to JSON and vice versa
Speed up apps
Mashup data sources
You can extend it

12. References
[1] Azure Log Analytics- meet our new query language, .microsoft.com/en-us/blog/Azure-Log-Analytics—meet-our-new-query- language, 2017
[2] en.wikipedia.org/wiki/query-language
[3] en.wikipedia.org/wiki/information-retrieval-query-language
[4] OMS Welcomes The new Azure Log Analytics Query Language, Zehner, Marcel, Log-Analytics-Query-Language
[5] Stream Analytics Query Language Reference,
[6] Simple Query Syntax in Azure Search, us/rest/api/searchservice/simple-query-syntax-in-azure-search
[7]
[8] Yahoo Query Language FAQ,
[8]

13. Thanks for your attention