Sentinel questions

Sentinel answers

• Nested SELECT and CASE statements within same table
• how to model data / indexes to find timeslices fast
• SQL Query to convert cron expression to date/time format
• Can you join three tables on the same key if that key could be missing from one or more of the tables?
• Postgres create id for groups
• Oracle SQL statement dynamic schema variable
• Call Oracle stored procedure from Select statement?
• java user defined function in oracle using byte[]
• To find infinite recursive loop in CTE
• Can a single 'when' clause handle multiple exception types in oracle?