| # Task: 035 |
|
|
| **Database:** professional_basketball |
| |
| ## Question |
| Count the number of people who played or coached in the NBA finals in the 1990s. |
| |
| |
| ## Gold Query |
| |
| ```sql |
| WITH players_1990s AS ( |
| SELECT DISTINCT pt.playerID |
| FROM players_teams pt |
| JOIN series_post sp ON pt.tmID = sp.tmIDWinner AND pt.year = sp.year |
| WHERE sp.round = 'F' |
| AND sp.year BETWEEN 1990 AND 1999 |
| AND pt.lgID = 'NBA' |
| UNION |
| SELECT DISTINCT pt.playerID |
| FROM players_teams pt |
| JOIN series_post sp ON pt.tmID = sp.tmIDLoser AND pt.year = sp.year |
| WHERE sp.round = 'F' |
| AND sp.year BETWEEN 1990 AND 1999 |
| AND pt.lgID = 'NBA' |
| ), |
| coaches_finals_1990s AS ( |
| SELECT DISTINCT c.coachID |
| FROM coaches c |
| JOIN series_post sp ON c.tmID = sp.tmIDWinner AND c.year = sp.year |
| WHERE sp.round = 'F' |
| AND sp.year BETWEEN 1990 AND 1999 |
| AND c.lgID = 'NBA' |
| UNION |
| SELECT DISTINCT c.coachID |
| FROM coaches c |
| JOIN series_post sp ON c.tmID = sp.tmIDLoser AND c.year = sp.year |
| WHERE sp.round = 'F' |
| AND sp.year BETWEEN 1990 AND 1999 |
| AND c.lgID = 'NBA' |
| ), |
| qualified_people(personID) AS ( |
| SELECT DISTINCT playerID |
| FROM players_1990s |
| UNION |
| SELECT DISTINCT coachID |
| FROM coaches_finals_1990s |
| ) |
| SELECT COUNT(DISTINCT personID) FROM qualified_people; |
| ``` |
| |
| **Execution Result:** |
| |
| | COUNT(DISTINCT personID) | |
| |----------------------------| |
| | 220 | |
| |
| *1 rows* |
