Print a Star Pattern in Python | Dataford Interview Questions

Write a Python program to print a star pattern.

This SQL version represents pattern requests as rows and returns the generated lines for valid, ready requests. Use the supplied tables and produce one output row for each line of each eligible pattern.

Output

Columns: request_id, line_number, and pattern_line
Include only ready requests with a positive size and an active matching style
Each pattern line contains the selected symbol repeated according to its line number
Order by request_id, then line_number ascending

Schema

pattern_requests

Column	Type	Description
request_idPK	INT	Unique pattern request identifier
style_id	INT	Referenced pattern style
pattern_size	INT	Number of lines requested
symbol	VARCHAR(10)	Optional symbol for the pattern
status	VARCHAR(20)	Processing status of the request

pattern_styles

Column	Type	Description
style_idPK	INT	Unique style identifier
style_name	VARCHAR(40)	Pattern style name
default_symbol	VARCHAR(10)	Symbol used when a request symbol is null
is_active	BOOLEAN	Whether the style can be used

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