﻿ SQL - Show all the details of the winners with the first name Louis

# SQL Exercises: Show all the details of the winners with the first name Louis

## SQL Basic Select Statement: Exercise-18 with Solution.

From the following table, write a SQL query to retrieve the details of the winners whose first names match with the string ‘Louis’. Return year, subject, winner, country, and category.

Sample table: nobel_win

Sample Solution:

``````SELECT *
FROM nobel_win
WHERE winner LIKE 'Louis %';
``````

Output of the Query:

```year	subject	winner	country	category
1970	Physics	Louis Neel	France	Scientist
```

Code Explanation:

The said SQL query retrieves all columns from the 'nobel_win' table where the winner's name starts with "Louis" followed by any characters. The query will return all rows that match this criteria, resulting in a list of all Nobel Prizes awarded to winners whose name starts with "Louis". The LIKE operator is used to match a specific pattern, in this case it will match any name that starts with Louis followed by any characters. The '%' sign is a wildcard character that matches any sequence of characters.

Relational Algebra Expression:

Relational Algebra Tree:

## Query Visualization:

Duration:

Rows:

Cost:

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Previous Python Exercise: Details of the Prime Ministerial winners after 1972.
Next Python Exercise: All winners in Physics for 1970 and Economics for 1971.

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## SQL: Tips of the Day

What is the best way to paginate results in SQL Server?

```SELECT  *
FROM    ( SELECT    ROW_NUMBER() OVER ( ORDER BY OrderDate ) AS RowNum, *
FROM      Orders
WHERE     OrderDate >= '1980-01-01'
) AS RowConstrainedResult
WHERE   RowNum >= 1
AND RowNum < 20
ORDER BY RowNum
```

Database: SQL Server

Ref: https://bit.ly/3MGrNlk

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