Show each log's ID, an effective level (replace 'INFO' with 'DEFAULT' using NULLIF and COALESCE), an

A medium SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.

Domain

SQL

Difficulty

medium

Problem

Show each log's ID, an effective level (replace 'INFO' with 'DEFAULT' using NULLIF and COALESCE), and server name

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