David דודו Markovitz

David דודו Markovitz has asked 4 questions and find answers to 133 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

Oracle SQL, is it possible to use a user-defined datatype property in a nested select?
Convert disk size from megabytes to gigabytes in KQL query
Impala SQL: Merging rows with overlapping dates. WHERE EXISTS and recursive CTE not supported
How to get length of complex datatype column in hive
Format Phone Number in a Table in Oracle
How to find the index of an element within JSON array (PostgreSQL 9.3)?
Kusto - how to ingest from query using management (.show) function
Whas is the difference between the `has` and `contains` operators in KQL?
Is there a way to detect a cycle in Hierarchical Queries in SQL Server?
Kusto project only non null values or drop columns with null values