SQL exercises on employee Database: List the employee id, name, location, department of all the departments 1001 and 2001
SQL employee Database: Exercise-94 with Solution
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94. From the following table, write a SQL query to find those employees who work in the department ID 1001 or 2001. Return employee ID, employee name, department ID, department location, and department name.
Sample table: employees
Sample table: department
Sample Solution:
SELECT e.emp_id,
e.emp_name,
e.dep_id,
d.dep_location,
d.dep_name
FROM employees e,
department d
WHERE e.dep_id = d.dep_id
AND e.dep_id IN (1001,
2001);
Sample Output:
emp_id | emp_name | dep_id | dep_location | dep_name --------+----------+--------+--------------+---------- 68319 | KAYLING | 1001 | SYDNEY | FINANCE 67832 | CLARE | 1001 | SYDNEY | FINANCE 65646 | JONAS | 2001 | MELBOURNE | AUDIT 68736 | ADNRES | 2001 | MELBOURNE | AUDIT 69324 | MARKER | 1001 | SYDNEY | FINANCE 67858 | SCARLET | 2001 | MELBOURNE | AUDIT 69062 | FRANK | 2001 | MELBOURNE | AUDIT 63679 | SANDRINE | 2001 | MELBOURNE | AUDIT (8 rows)
Relational Algebra Expression:
Relational Algebra Tree:
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Sample Database: employee
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Previous: From the following table, write a SQL query to list the employee id, name, department id, location of all the employees.
Next: From the following table, write a SQL query to find those employees whose salary is in the range minimum and maximum salary (Begin and end values are included.). Return employee ID, name, salary and grade.
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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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