SQL SORTING and FILTERING on HR Database: Display all those employees whose first name or last name starts with the letter D
SQL SORTING and FILTERING on HR Database: Exercise-36 with Solution
36. From the following table, write a SQL query to find the employees whose first or last name begins with 'D'. Return first name, last name.
Sample table : employees
Sample Solution:
SELECT first_name, last_name
FROM employees
WHERE first_name LIKE 'D%'
OR last_name LIKE 'D%';
Sample Output:
first_name | last_name ------------+----------- Lex | De Haan David | Austin Diana | Lorentz Daniel | Faviet Den | Raphaely Curtis | Davies David | Bernstein Louise | Doran Danielle | Greene David | Lee Julia | Dellinger Jennifer | Dilly Donald | OConnell Douglas | Grant (14 rows)
Relational Algebra Expression:
Relational Algebra Tree:
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Query Visualization:
Duration:
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Cost:
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Previous: From the following table, write a SQL query to find those job titles where the difference between minimum and maximum salaries is in the range the range 12000, 18000 (Begin and end values are included.). Return job_title, max_salary-min_salary.
Next: From the following table, write a SQL query to find details of those jobs where minimum salary exceeds 9000. Return all the fields of jobs.
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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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