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mrXrobot26 / SQL-50 Public

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SQL-50

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584-Find-Customer-Referee.sql

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3 lines (3 loc) · 126 Bytes

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SQL-50

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584-Find-Customer-Referee.sql

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3 lines (3 loc) · 126 Bytes

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2

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-- Write your PostgreSQL query statement below

select c.name from customer c

where c.referee_id is NULL or c.referee_id != 2

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