Justus-coded

/*
Query the list of CITY names ending with vowels (a, e, i, o, u) from STATION. Your result cannot contain duplicates.
*/

SELECT DISTINCT CITY
FROM STATION
WHERE RIGHT(UPPER(CITY),1) IN ('A', 'E', 'I', 'O', 'U')

Justus-coded

/*
Query the list of CITY names from STATION which have vowels (i.e., a, e, i, o, and u) as both their first and last characters. Your result cannot contain duplicates.
*/
SELECT DISTINCT CITY
FROM STATION
WHERE (LEFT(UPPER(CITY),1) IN ('A','E','I','O','U')) AND (RIGHT(UPPER(CITY),1) IN ('A','E','I','O','U'))

Justus-coded

/*
Query the list of CITY names from STATION that do not start with vowels. Your result cannot contain duplicates.
*/

SELECT DISTINCT CITY 
FROM STATION
WHERE LEFT(UPPER(CITY), 1) NOT IN ('A', 'E', 'I', 'O', 'U')

Justus-coded

/*
Query the list of CITY names from STATION that do not end with vowels. Your result cannot contain duplicates.
*/

SELECT DISTINCT CITY 
FROM STATION
WHERE RIGHT(UPPER(CITY), 1) NOT IN ('A', 'E', 'I', 'O', 'U')

Justus-coded

/*
Query the list of CITY names from STATION that either do not start with vowels or do not end with vowels. Your result cannot contain duplicates.
*/


SELECT DISTINCT CITY 
FROM STATION
WHERE (RIGHT(UPPER(CITY), 1) NOT IN ('A', 'E', 'I', 'O', 'U')) OR (LEFT(UPPER(CITY), 1) NOT IN ('A', 'E', 'I', 'O', 'U'))

Justus-coded

/*
Query the list of CITY names from STATION that do not start with vowels and do not end with vowels. Your result cannot contain duplicates.
*/

SELECT DISTINCT CITY 
FROM STATION
WHERE (RIGHT(UPPER(CITY), 1) NOT IN ('A', 'E', 'I', 'O', 'U')) AND (LEFT(UPPER(CITY), 1) NOT IN ('A', 'E', 'I', 'O', 'U'))

Justus-coded

/*
Query the Name of any student in STUDENTS who scored higher than  Marks. Order your output by the last three characters of each name. If two or more students both have names ending in the same last three characters (i.e.: Bobby, Robby, etc.), secondary sort them by ascending ID.
*/
SELECT Name
FROM STUDENTS
WHERE Marks > 75
ORDER BY RIGHT(Name, 3) , ID ;

Justus-coded

/*
Write a query that prints a list of employee names (i.e.: the name attribute) from the Employee table in alphabetical order.
*/

SELECT name 
FROM Employee
ORDER BY name;

Justus-coded

/*
Write a query that prints a list of employee names (i.e.: the name attribute) for employees in 
Employee having a salary greater than  2000 per month who have been employees for less than  months. 
Sort your result by ascending employee_id.
*/

SELECT name
FROM Employee
WHERE (salary > 2000) AND (months< 10)
ORDER BY employee_id;

Justus-coded

#import libraries
from sklearn import datasets
from catboost import CatBoostClassifier
from sklearn.model_selection import cross_val_score

# load data
cancer = datasets.load_breast_cancer()

# target
y = cancer.target