이서's 잡학다식

Query the list of CITY names ending with vowels (a, e, i, o, u) from STATION. Your result cannot contain duplicates. Input Format The STATION table is described as follows: # 나의 해답 SELECT DISTINCT CITY FROM STATION WHERE (CITY LIKE '%a' OR CITY LIKE '%e' OR CITY LIKE '%i' OR CITY LIKE '%o' OR CITY LIKE '%u');

Query the list of CITY names starting with vowels (i.e., a, e, i, o, or u) from STATION. Your result cannot contain duplicates. Input Format The STATION table is described as follows: # 나의 해답 SELECT CITY FROM STATION WHERE (SUBSTR(CITY,1,1) = 'A' or SUBSTR(CITY,1,1) = 'E' or SUBSTR(CITY,1,1) = 'I' or SUBSTR(CITY,1,1) = 'O' or SUBSTR(CITY,1,1) = 'U' );

Query the two cities in STATION with the shortest and longest CITY names, as well as their respective lengths (i.e.: number of characters in the name). If there is more than one smallest or largest city, choose the one that comes first when ordered alphabetically. The STATION table is described as follows: # 나의 해답 select * from (select city c, length(city) l from station order by l desc, c asc) ..

Find the difference between the total number of CITY entries in the table and the number of distinct CITY entries in the table. The STATION table is described as follows: # 나의 해답 SELECT COUNT(*)-COUNT(DISTINCT(CITY)) FROM STATION

Query a list of CITY names from STATION for cities that have an even ID number. Print the results in any order, but exclude duplicates from the answer. The STATION table is described as follows: # 나의 해답 SELECT DISTINCT(CITY) FROM STATION WHERE MOD(ID,2)=0;

Query a list of CITY and STATE from the STATION table. The STATION table is described as follows: # 나의 해답 SELECT CITY, STATE FROM STATION;

Query the names of all the Japanese cities in the CITY table. The COUNTRYCODE for Japan is JPN. The CITY table is described as follows: # 나의 해답 SELECT NAME FROM CITY WHERE COUNTRYCODE ='JPN';

Query all columns for a city in CITY with the ID 1661. The CITY table is described as follows: # 나의 해답 SELECT * FROM CITY WHERE ID=1661;