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Pull Request For Draft Under Review #365

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Pull Request For Draft Under Review #365

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48624c4
Create direct-sub-query.sql
kdqed Jul 8, 2025
1eb28ce
Create using-concat.sql
kdqed Jul 8, 2025
1fc8fd5
Create using-two-columns-mysql.sql
kdqed Jul 8, 2025
e6f4dbd
Create count-distinct-national-id.sql
kdqed Jul 10, 2025
aa3af32
Create count-distinct-position.sql
kdqed Jul 10, 2025
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2 changes: 2 additions & 0 deletions sql-queries-11/count-distinct-multiple-columns/count-distinct-national-id.sql
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Original file line number Diff line number Diff line change
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SELECT COUNT(DISTINCT national_id)
FROM Faculty;
2 changes: 2 additions & 0 deletions sql-queries-11/count-distinct-multiple-columns/count-distinct-position.sql
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Original file line number Diff line number Diff line change
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SELECT COUNT(DISTINCT position)
FROM Faculty;
5 changes: 5 additions & 0 deletions sql-queries-11/count-distinct-multiple-columns/direct-sub-query.sql
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SELECT COUNT(*)
FROM (
SELECT DISTINCT national_id, position
FROM Faculty
) AS subQuery;
2 changes: 2 additions & 0 deletions sql-queries-11/count-distinct-multiple-columns/using-concat.sql
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Original file line number Diff line number Diff line change
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SELECT COUNT(DISTINCT CONCAT(national_id, position))
FROM Faculty;
2 changes: 2 additions & 0 deletions sql-queries-11/count-distinct-multiple-columns/using-two-columns-mysql.sql
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Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
SELECT COUNT(DISTINCT national_id, position)
FROM Faculty;