David דודו Markovitz

David דודו Markovitz has asked 4 questions and find answers to 157 problems.

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David דודו Markovitz questions

SQL Challenge/Puzzle: Given a stack trace - How to find the top element at each point in time?
SQL Challenge/Puzzle: How to merge nested ranges?
How to list tables in their dependency order (based on foreign keys)?

David דודו Markovitz answers

How to aggregate several columns into a JSON file for each group in HIVE
Kusto Timeseries fill up missing values for timechart
Azure Data Explorer: how to update a table from a raw JSON event using Kusto and update policies?
delete hive partitioned external table but retain partitions
Unexpected behavior in FIRST_VALUE() with IGNORE NULLS (Vertica)
How to optimise a query on a large dataset?
Hive search using csv file
Substring in a column
Is there a possibility to create a Histogram using Kusto Query Language?
Is it possible to compare a value against an array of values in Kusto?