| 일 | 월 | 화 | 수 | 목 | 금 | 토 |
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | |
| 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| 21 | 22 | 23 | 24 | 25 | 26 | 27 |
| 28 | 29 | 30 | 31 |
- const
- array
- pointer
- baekjoon
- Data Science
- assignment operator
- Deep Learning
- 포인터
- pass by reference
- vscode
- 오블완
- Python
- string
- Object Oriented Programming
- 알고리즘
- 티스토리챌린지
- 함수
- programming
- 파이썬
- 배열
- OOP
- 문자열
- C++
- 반복문
- 백준
- Class
- Pre-processing
- predictive analysis
- raw data
- function
- Today
- Total
목록전체 글 (188)
Channi Studies
[MySQL] Day 9. PRIMARY KEYS constraint
Today I learned PRIMARY KEYS constraint in MySQL.Primary key constraint can be applied to a column where each value in that column must both be unique and not null.It's typically used as a unique identifier. PRIMARY KEYS constraint가 유용할만한 예시를 하나 들어보겠습니다. 대한민국의 출생신고가 된 모든 사람들은 각기 다른 주민등록번호를 가지고 있습니다. 편의를 위해 우리가 대한민국의 모든 사람들의 이름과 주민번호 데이터베이스에 대한 접근 권한이 존재한다고 가정하겠습니다. 이 상황에서 만약에 대한민국에 거주중인 특정 인물 ..
[MySQL] Day 8. DEFAULT Constraint
Today I learned about DEFAULT constraint in MySQL!!! W3Schools.comW3Schools offers free online tutorials, references and exercises in all the major languages of the web. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more.www.w3schools.com As you can guess from its name, DEFAULT constraint is used to set a default value for a colum. Let's start by checki..
[MySQL] Day 7. CHECK Constraint
In this post, we will learn about CHECK constraint used in MySQL. W3Schools.comW3Schools offers free online tutorials, references and exercises in all the major languages of the web. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more.www.w3schools.com CHECK constraint is used to limit the values that can be used in a column. Let's start from our employe..
[Data Structure] Deque (ADT)
A deque (pronounced "deck" and short for double-ended queue) is an ADT in which items can be inserted and removed at both the front and back. The deque push-front operation inserts an item at the front of the deque, and the push-back operation inserts at the back of the deque. The pop-front operation removes and returns the item at the front of the deque, and the pop-back operation removes and r..