[Hackerrank-SQL] Employee Salaries 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 10 months. Sort your result by ascending employee_id. Data Analyst/SQL 2021.08.16
[Hackerrank-SQL] Employee Names Write a query that prints a list of employee names (i.e.: the name attribute) from the Employee table in alphabetical order. Data Analyst/SQL 2021.08.16
[Hackerrank-SQL] Higher Than 75 Marks Query the Name of any student in STUDENTS who scored higher than 75 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. Data Analyst/SQL 2021.08.16
[Hackerrank-SQL] Weather Observation Station 12 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. 이름의 처음과 끝이 모음으로 시작하지 않는 도시를 중복없이 출력해라. Data Analyst/SQL 2021.08.07
[Hackerrank-SQL] Weather Observation Station 11 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. 이름의 처음 또는 끝이 모음으로 시작하지 않는 도시를 중복없이 출력해라. Data Analyst/SQL 2021.08.06
[Hackerrank-SQL] Weather Observation Station 10 Query the list of CITY names from STATION that do not end with vowels. Your result cannot contain duplicates. 이름이 모음으로 끝나지 않는 도시를 중복없이 출력해라. Data Analyst/SQL 2021.08.05
[Hackerrank-SQL] Weather Observation Station 9 Query the list of CITY names from STATION that do not start with vowels. Your result cannot contain duplicates. 이름이 모음으로 시작하지 않는 도시 중복없이 출력해라. Data Analyst/SQL 2021.08.02
[Hackerrank-SQL] Weather Observation Station 8 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. 이름 처음과 끝이 모음으로 끝나는 도시를 중복없이 추출해라. Data Analyst/SQL 2021.08.02
[Hackerrank-SQL] Weather Observation Station 7 Query the list of CITY names ending with vowels (a, e, i, o, u) from STATION. Your result cannot contain duplicates. 모음으로 끝나는 도시 이름 중복없이 추출해라. Data Analyst/SQL 2021.08.01
[Hackerrank-SQL] Weather Observation Station 6 Query the list of CITY names starting with vowels (i.e., a, e, i, o, or u) from STATION. Your result cannot contain duplicates. 이름이 모음으로 시작하는 도시 추출해라. [ORACLE] * SUBSTR(문자열, 시작위치, 길이) 시작위치에서 길이만큼 자르기 *INSTR(문자열, 찾을문자열, 시작위치, 발생횟수) 문자열에서 찾고자하는 문자열과 일치하는 위치를 반환 Data Analyst/SQL 2021.08.01