- Description: Returns the first non-NULL value in a list.
- Purpose: Simplifying the selection of non-NULL values.
- Syntax:
COALESCE(value1, value2, ..., valueN) - Parameters: A variable number of values.
- Returns: The first non-NULL value.
- Example:
COALESCE(NULL, NULL, 'First Value')returns'First Value'. - Notes: Useful for handling multiple potential NULLs.
- Use Case: Selecting the first available value in a set.
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