SQL exercises on employee Database: Display the unique designations for the employees
SQL employee Database: Exercise-3 with Solution
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3. From the following table, write a SQL query to find the unique designations of the employees. Return job name.
Sample table: employees
Pictorial Presentation:
Sample Solution:
SELECT DISTINCT job_name
FROM employees;
Sample Output:
job_name ----------- CLERK SALESMAN MANAGER PRESIDENT ANALYST (5 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 the salaries of all employees. Return salary.
Next: From the following table, write a SQL query to list the employees’ name, increased their salary by 15%, and expressed as number of Dollars.
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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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