SQL exercises on employee Database: List the managers of department 1001 or 2001
SQL employee Database: Exercise-49 with Solution
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49. From the following table, write a SQL query to find those managers who are in the department 1001 or 2001. Return complete information about the employees.
Sample table: employees
Pictorial Presentation:
Sample Solution:
SELECT *
FROM employees
WHERE job_name = 'MANAGER'
AND (dep_id = 1001
OR dep_id =2001);
Sample Output:
emp_id | emp_name | job_name | manager_id | hire_date | salary | commission | dep_id --------+----------+----------+------------+------------+---------+------------+-------- 67832 | CLARE | MANAGER | 68319 | 1991-06-09 | 2550.00 | | 1001 65646 | JONAS | MANAGER | 68319 | 1991-04-02 | 2957.00 | | 2001 (2 rows)
Relational Algebra Expression:
Relational Algebra Tree:
Practice Online
Sample Database: employee
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Previous: From the following table, write a SQL query to find those employees who joined in 90's. Return complete information about the employees.
Next: From the following table, write a SQL query to find those employees who joined in the month FEBRUARY with a salary range between 1001 to 2000 (Begin and end values are included.). Return complete information about the employees.
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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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