SQL exercises on hospital Database: Find the name of the physicians who are the head of each department
SQL hospital Database: Exercise-3 with Solution
3. From the following tables, write a SQL query to find those physicians who are the head of the department. Return Department name as "Department" and Physician name as "Physician".
Sample table: physician
Sample table: department
Sample Solution:
SELECT d.name AS "Department",
p.name AS "Physician"
FROM department d,
physician p
WHERE d.head=p.employeeid;
Sample Output:
Department | Physician ------------------+-------------- General Medicine | Percival Cox Surgery | John Wen Psychiatry | Molly Clock (3 rows)
Pictorial presentation:
Practice Online
E R Diagram of Hospital Database:
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Previous: From the following table, write a SQL query to find the nurse who is the head of their department. Return Nurse Name as "name", Position as "Position".
Next: From the following table, write a SQL query to count the number of patients who booked an appointment with at least one Physician. Return count as "Number of patients taken at least one appointment".
What is the difficulty level of this exercise?
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SQL: Tips of the Day
SQL Server SELECT into existing table.
INSERT INTO dbo.TABLETWO SELECT col1, col2 FROM dbo.TABLEONE WHERE col3 LIKE @search_key
This assumes there's only two columns in dbo.TABLETWO - you need to specify the columns otherwise:
INSERT INTO dbo.TABLETWO (col1, col2) SELECT col1, col2 FROM dbo.TABLEONE WHERE col3 LIKE @search_key
Database: SQL Server
Ref: https://bit.ly/3y6tpA3
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