List Distinct Cities of a Province
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Question (#25)
Note
Find all cities
city
in the province with province ID
QC
. The list of cities must not contain duplicates.
Expected Output
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Databases & Questions
Hint
Filter by province, then remove duplicate city names.
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Query an Entire Table
Limit Rows From the Top of a Table
Return Rows From a Specific Position
Select Specific Columns and Assign a Default Value
Filter Rows With a Condition
Count All Rows Without a Condition
Count Rows With a Condition
Count Patients by Group Condition (Single Row)
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Concatenate Strings and Filter NULL Values
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Count Patients With and Without Allergies
Count Patients by Allergy Status and return multiple rows
Filter by Birth Year and Sort by Height
Filter by a List of IDs
Filter Patients With Odd IDs
Combine Conditions on Specialty and Last Name
Filter Names by Starting Letter
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Find Patients With the Tallest and Shortest Height
List Distinct Diagnoses of One Patient
Aggregate Diagnoses Into a Single Row
Aggregate Distinct Diagnoses per Patient
Count Distinct Diagnoses per Patient
List Distinct Cities of a Province
Province Name With Its Cities
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Filter Names by Length and Last Letter
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Find Repeat Admissions With the Same Diagnosis
Join Patients With Province Names
Count Patients per City
Count Patients per Province
Count Patients per City Within Each Province
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First and Last Day of Each Doctor
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Combine Conditions on IDs With OR
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Latest Admission per Patient With Doctor Name
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Count Patients Born in a Given Year
Classify Patients by BMI Threshold
Filter Patients by Diagnosis and Doctor Name during a DATE range
Generate Temporary Passwords
Compute Admission Fees by Insurance Status
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Daily Admissions and Change From Previous Day
Custom Sort With One Value First
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Doctors Above the Overall Average
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Find Patients Missing Both Height and Weight
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