Growth ๐ŸŒณ/Practice ๐Ÿ’ป 118

[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค] 3์›”์— ํƒœ์–ด๋‚œ ์—ฌ์„ฑ ํšŒ์› ๋ชฉ๋ก ์ถœ๋ ฅํ•˜๊ธฐ

๐Ÿ“ข ๋ณธ ํฌ์ŠคํŒ…์— ํ™œ์šฉ๋˜๋Š” ๊ธฐ๋ณธ ๋ฌธ์ œ ๋ฐ ์ž๋ฃŒ ์ถœ์ฒ˜๋Š” ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค ์ฝ”๋”ฉํ…Œ์ŠคํŠธ ์—ฐ์Šต, https://school.programmers.co.kr/learn/challenges?page=1&languages=mysql%2Coracle์ž„์„ ๋ฐํž™๋‹ˆ๋‹ค. โ–  ๋ฌธ์ œ ๋ฌธ์ œ ์„ค๋ช… ๋‹ค์Œ์€ ์‹๋‹น ๋ฆฌ๋ทฐ ์‚ฌ์ดํŠธ์˜ ํšŒ์› ์ •๋ณด๋ฅผ ๋‹ด์€ MEMBER_PROFILE ํ…Œ์ด๋ธ”์ž…๋‹ˆ๋‹ค. MEMBER_PROFILE ํ…Œ์ด๋ธ”์€ ๋‹ค์Œ๊ณผ ๊ฐ™์œผ๋ฉฐ MEMBER_ID, MEMBER_NAME, TLNO, GENDER, DATE_OF_BIRTH๋Š” ํšŒ์› ID, ํšŒ์› ์ด๋ฆ„, ํšŒ์› ์—ฐ๋ฝ์ฒ˜, ์„ฑ๋ณ„, ์ƒ๋…„์›”์ผ์„ ์˜๋ฏธํ•ฉ๋‹ˆ๋‹ค. Column name Type Nullable MEMBER_ID VARCHAR(100) FALSE MEMBER_NAME VARCHAR(50) FALS..

[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค] ์ง„๋ฃŒ๊ณผ๋ณ„ ์ด ์˜ˆ์•ฝ ํšŸ์ˆ˜ ์ถœ๋ ฅํ•˜๊ธฐ

๐Ÿ“ข ๋ณธ ํฌ์ŠคํŒ…์— ํ™œ์šฉ๋˜๋Š” ๊ธฐ๋ณธ ๋ฌธ์ œ ๋ฐ ์ž๋ฃŒ ์ถœ์ฒ˜๋Š” ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค ์ฝ”๋”ฉํ…Œ์ŠคํŠธ ์—ฐ์Šต, https://school.programmers.co.kr/learn/challenges?page=1&languages=mysql%2Coracle์ž„์„ ๋ฐํž™๋‹ˆ๋‹ค. โ–  ๋ฌธ์ œ ๋ฌธ์ œ์„ค๋ช… ๋‹ค์Œ์€ ์ข…ํ•ฉ๋ณ‘์›์˜ ์ง„๋ฃŒ ์˜ˆ์•ฝ์ •๋ณด๋ฅผ ๋‹ด์€ APPOINTMENT ํ…Œ์ด๋ธ” ์ž…๋‹ˆ๋‹ค. APPOINTMENT ํ…Œ์ด๋ธ”์€ ๋‹ค์Œ๊ณผ ๊ฐ™์œผ๋ฉฐ APNT_YMD, APNT_NO, PT_NO, MCDP_CD, MDDR_ID, APNT_ CNCL_YN, APNT _CNCL_YMD๋Š” ๊ฐ๊ฐ ์ง„๋ฃŒ์˜ˆ์•ฝ์ผ์‹œ, ์ง„๋ฃŒ์˜ˆ์•ฝ๋ฒˆํ˜ธ, ํ™˜์ž๋ฒˆํ˜ธ, ์ง„๋ฃŒ๊ณผ์ฝ”๋“œ, ์˜์‚ฌID, ์˜ˆ์•ฝ์ทจ์†Œ์—ฌ๋ถ€, ์˜ˆ์•ฝ์ทจ์†Œ๋‚ ์งœ๋ฅผ ๋‚˜ํƒ€๋ƒ…๋‹ˆ๋‹ค. Column name Type Nullable APNT_YMD TIMESTAMP FAL..

[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค] ์ทจ์†Œ๋˜์ง€ ์•Š์€ ์ง„๋ฃŒ ์˜ˆ์•ฝ ์กฐํšŒํ•˜๊ธฐ

๐Ÿ“ข ๋ณธ ํฌ์ŠคํŒ…์— ํ™œ์šฉ๋˜๋Š” ๊ธฐ๋ณธ ๋ฌธ์ œ ๋ฐ ์ž๋ฃŒ ์ถœ์ฒ˜๋Š” ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค ์ฝ”๋”ฉํ…Œ์ŠคํŠธ ์—ฐ์Šต, https://school.programmers.co.kr/learn/challenges?page=1&languages=mysql%2Coracle์ž„์„ ๋ฐํž™๋‹ˆ๋‹ค. โ–  ๋ฌธ์ œ ๋ฌธ์ œ ์„ค๋ช… ๋‹ค์Œ์€ ํ™˜์ž ์ •๋ณด๋ฅผ ๋‹ด์€ PATIENT ํ…Œ์ด๋ธ”๊ณผ ์˜์‚ฌ ์ •๋ณด๋ฅผ ๋‹ด์€ DOCTOR ํ…Œ์ด๋ธ”, ๊ทธ๋ฆฌ๊ณ  ์ง„๋ฃŒ ์˜ˆ์•ฝ๋ชฉ๋ก์„ ๋‹ด์€ APPOINTMENT์— ๋Œ€ํ•œ ํ…Œ์ด๋ธ”์ž…๋‹ˆ๋‹ค. PATIENT ํ…Œ์ด๋ธ”์€ ๋‹ค์Œ๊ณผ ๊ฐ™์œผ๋ฉฐ PT_NO, PT_NAME, GEND_CD, AGE, TLNO๋Š” ๊ฐ๊ฐ ํ™˜์ž๋ฒˆํ˜ธ, ํ™˜์ž์ด๋ฆ„, ์„ฑ๋ณ„์ฝ”๋“œ, ๋‚˜์ด, ์ „ํ™”๋ฒˆํ˜ธ๋ฅผ ์˜๋ฏธํ•ฉ๋‹ˆ๋‹ค. Column name Type Nullable PT_NO VARCHAR(N) FALSE PT_NAME VARCHAR(N)..

[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค] ๊ณผ์ผ๋กœ ๋งŒ๋“  ์•„์ด์Šคํฌ๋ฆผ ๊ณ ๋ฅด๊ธฐ

๐Ÿ“ข ๋ณธ ํฌ์ŠคํŒ…์— ํ™œ์šฉ๋˜๋Š” ๊ธฐ๋ณธ ๋ฌธ์ œ ๋ฐ ์ž๋ฃŒ ์ถœ์ฒ˜๋Š” ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค ์ฝ”๋”ฉํ…Œ์ŠคํŠธ ์—ฐ์Šต, https://school.programmers.co.kr/learn/challenges?page=1&languages=mysql%2Coracle์ž„์„ ๋ฐํž™๋‹ˆ๋‹ค. โ–  ๋ฌธ์ œ ๋ฌธ์ œ ์„ค๋ช… ๋‹ค์Œ์€ ์•„์ด์Šคํฌ๋ฆผ ๊ฐ€๊ฒŒ์˜ ์ƒ๋ฐ˜๊ธฐ ์ฃผ๋ฌธ ์ •๋ณด๋ฅผ ๋‹ด์€ FIRST_HALF ํ…Œ์ด๋ธ”๊ณผ ์•„์ด์Šคํฌ๋ฆผ ์„ฑ๋ถ„์— ๋Œ€ํ•œ ์ •๋ณด๋ฅผ ๋‹ด์€ ICECREAM_INFO ํ…Œ์ด๋ธ”์ž…๋‹ˆ๋‹ค. FIRST_HALF ํ…Œ์ด๋ธ” ๊ตฌ์กฐ๋Š” ๋‹ค์Œ๊ณผ ๊ฐ™์œผ๋ฉฐ, SHIPMENT_ID, FLAVOR, TOTAL_ ORDER ๋Š” ๊ฐ๊ฐ ์•„์ด์Šคํฌ๋ฆผ ๊ณต์žฅ์—์„œ ์•„์ด์Šคํฌ๋ฆผ ๊ฐ€๊ฒŒ๊นŒ์ง€์˜ ์ถœํ•˜ ๋ฒˆํ˜ธ, ์•„์ด์Šคํฌ๋ฆผ ๋ง›, ์ƒ๋ฐ˜๊ธฐ ์•„์ด์Šคํฌ๋ฆผ ์ด์ฃผ๋ฌธ๋Ÿ‰์„ ๋‚˜ํƒ€๋ƒ…๋‹ˆ๋‹ค. FIRST_HALF ํ…Œ์ด๋ธ”์˜ ๊ธฐ๋ณธ ํ‚ค๋Š” FLAVOR์ž…๋‹ˆ๋‹ค. NAM..

[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค] ์ฃผ๋ฌธ๋Ÿ‰์ด ๋งŽ์€ ์•„์ด์Šคํฌ๋ฆผ๋“ค ์กฐํšŒํ•˜๊ธฐ

๐Ÿ“ข ๋ณธ ํฌ์ŠคํŒ…์— ํ™œ์šฉ๋˜๋Š” ๊ธฐ๋ณธ ๋ฌธ์ œ ๋ฐ ์ž๋ฃŒ ์ถœ์ฒ˜๋Š” ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค ์ฝ”๋”ฉํ…Œ์ŠคํŠธ ์—ฐ์Šต, https://school.programmers.co.kr/learn/challenges?page=1&languages=mysql%2Coracle์ž„์„ ๋ฐํž™๋‹ˆ๋‹ค. โ–  ๋ฌธ์ œ ๋ฌธ์ œ ์„ค๋ช… ๋‹ค์Œ์€ ์•„์ด์Šคํฌ๋ฆผ ๊ฐ€๊ฒŒ์˜ ์ƒ๋ฐ˜๊ธฐ ์ฃผ๋ฌธ ์ •๋ณด๋ฅผ ๋‹ด์€ FIRST_HALF ํ…Œ์ด๋ธ”๊ณผ 7์›”์˜ ์•„์ด์Šคํฌ๋ฆผ ์ฃผ๋ฌธ ์ •๋ณด๋ฅผ ๋‹ด์€ JULY ํ…Œ์ด๋ธ”์ž…๋‹ˆ๋‹ค. FIRST_HALF ํ…Œ์ด๋ธ” ๊ตฌ์กฐ๋Š” ๋‹ค์Œ๊ณผ ๊ฐ™์œผ๋ฉฐ, SHIPMENT_ID, FLAVOR, TOTAL_ORDER๋Š” ๊ฐ๊ฐ ์•„์ด์Šคํฌ๋ฆผ ๊ณต์žฅ์—์„œ ์•„์ด์Šคํฌ๋ฆผ ๊ฐ€๊ฒŒ๊นŒ์ง€์˜ ์ถœํ•˜ ๋ฒˆํ˜ธ, ์•„์ด์Šคํฌ๋ฆผ ๋ง›, ์ƒ๋ฐ˜๊ธฐ ์•„์ด์Šคํฌ๋ฆผ ์ด์ฃผ๋ฌธ๋Ÿ‰์„ ๋‚˜ํƒ€๋ƒ…๋‹ˆ๋‹ค. FIRST_HALF ํ…Œ์ด๋ธ”์˜ ๊ธฐ๋ณธ ํ‚ค๋Š” FLAVOR์ž…๋‹ˆ๋‹ค. FIRST_HALFํ…Œ์ด๋ธ”์˜..

[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค] ์„ฑ๋ถ„์œผ๋กœ ๊ตฌ๋ถ„ํ•œ ์•„์ด์Šคํฌ๋ฆผ ์ด ์ฃผ๋ฌธ๋Ÿ‰

๐Ÿ“ข ๋ณธ ํฌ์ŠคํŒ…์— ํ™œ์šฉ๋˜๋Š” ๊ธฐ๋ณธ ๋ฌธ์ œ ๋ฐ ์ž๋ฃŒ ์ถœ์ฒ˜๋Š” ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค ์ฝ”๋”ฉํ…Œ์ŠคํŠธ ์—ฐ์Šต, https://school.programmers.co.kr/learn/challenges?page=1&languages=mysql%2Coracle์ž„์„ ๋ฐํž™๋‹ˆ๋‹ค. โ–  ๋ฌธ์ œ ๋ฌธ์ œ ์„ค๋ช… ๋‹ค์Œ์€ ์•„์ด์Šคํฌ๋ฆผ ๊ฐ€๊ฒŒ์˜ ์ƒ๋ฐ˜๊ธฐ ์ฃผ๋ฌธ ์ •๋ณด๋ฅผ ๋‹ด์€ FIRST_HALF ํ…Œ์ด๋ธ”๊ณผ ์•„์ด์Šคํฌ๋ฆผ ์„ฑ๋ถ„์— ๋Œ€ํ•œ ์ •๋ณด๋ฅผ ๋‹ด์€ ICECREAM_INFO ํ…Œ์ด๋ธ”์ž…๋‹ˆ๋‹ค. FIRST_HALF ํ…Œ์ด๋ธ” ๊ตฌ์กฐ๋Š” ๋‹ค์Œ๊ณผ ๊ฐ™์œผ๋ฉฐ, SHIPMENT_ID, FLAVOR, TOTAL_ORDER ๋Š” ๊ฐ๊ฐ ์•„์ด์Šคํฌ๋ฆผ ๊ณต์žฅ์—์„œ ์•„์ด์Šคํฌ๋ฆผ ๊ฐ€๊ฒŒ๊นŒ์ง€์˜ ์ถœํ•˜ ๋ฒˆํ˜ธ, ์•„์ด์Šคํฌ๋ฆผ ๋ง›, ์ƒ๋ฐ˜๊ธฐ ์•„์ด์Šคํฌ๋ฆผ ์ด์ฃผ๋ฌธ๋Ÿ‰์„ ๋‚˜ํƒ€๋ƒ…๋‹ˆ๋‹ค. FIRST_HALF ํ…Œ์ด๋ธ”์˜ ๊ธฐ๋ณธ ํ‚ค๋Š” FLAVOR์ž…๋‹ˆ๋‹ค. NAME..

[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค] ๊ฐ€๊ฒฉ์ด ์ œ์ผ ๋น„์‹ผ ์‹ํ’ˆ์˜ ์ •๋ณด ์ถœ๋ ฅํ•˜๊ธฐ

๐Ÿ“ข ๋ณธ ํฌ์ŠคํŒ…์— ํ™œ์šฉ๋˜๋Š” ๊ธฐ๋ณธ ๋ฌธ์ œ ๋ฐ ์ž๋ฃŒ ์ถœ์ฒ˜๋Š” ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค ์ฝ”๋”ฉํ…Œ์ŠคํŠธ ์—ฐ์Šต, https://school.programmers.co.kr/learn/challenges?page=1&languages=mysql%2Coracle์ž„์„ ๋ฐํž™๋‹ˆ๋‹ค. โ–  ๋ฌธ์ œ ๋ฌธ์ œ ์„ค๋ช… ๋‹ค์Œ์€ ์‹ํ’ˆ์˜ ์ •๋ณด๋ฅผ ๋‹ด์€ FOOD_PRODUCT ํ…Œ์ด๋ธ”์ž…๋‹ˆ๋‹ค. FOOD_PRODUCT ํ…Œ์ด๋ธ”์€ ๋‹ค์Œ๊ณผ ๊ฐ™์œผ๋ฉฐ PRODUCT _ID, PRODUCT_NAME, PRODUCT_CD, CATEGORY, PRICE๋Š” ์‹ํ’ˆ ID, ์‹ํ’ˆ ์ด๋ฆ„, ์‹ํ’ˆ ์ฝ”๋“œ, ์‹ํ’ˆ๋ถ„๋ฅ˜, ์‹ํ’ˆ ๊ฐ€๊ฒฉ์„ ์˜๋ฏธํ•ฉ๋‹ˆ๋‹ค. Column name Type Nullable PRODUCT_ID VARCHAR(10) FALSE PRODUCT_NAME VARCHAR(50) FALSE PRODUC..

[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค] ๊ฒฝ๊ธฐ๋„์— ์œ„์น˜ํ•œ ์‹ํ’ˆ์ฐฝ๊ณ  ๋ชฉ๋ก ์ถœ๋ ฅํ•˜๊ธฐ

๐Ÿ“ข ๋ณธ ํฌ์ŠคํŒ…์— ํ™œ์šฉ๋˜๋Š” ๊ธฐ๋ณธ ๋ฌธ์ œ ๋ฐ ์ž๋ฃŒ ์ถœ์ฒ˜๋Š” ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค ์ฝ”๋”ฉํ…Œ์ŠคํŠธ ์—ฐ์Šต, https://school.programmers.co.kr/learn/challenges?page=1&languages=mysql%2Coracle์ž„์„ ๋ฐํž™๋‹ˆ๋‹ค. โ–  ๋ฌธ์ œ https://school.programmers.co.kr/learn/courses/30/lessons/131114 ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค ์ฝ”๋“œ ์ค‘์‹ฌ์˜ ๊ฐœ๋ฐœ์ž ์ฑ„์šฉ. ์Šคํƒ ๊ธฐ๋ฐ˜์˜ ํฌ์ง€์…˜ ๋งค์นญ. ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค์˜ ๊ฐœ๋ฐœ์ž ๋งž์ถคํ˜• ํ”„๋กœํ•„์„ ๋“ฑ๋กํ•˜๊ณ , ๋‚˜์™€ ๊ธฐ์ˆ  ๊ถํ•ฉ์ด ์ž˜ ๋งž๋Š” ๊ธฐ์—…๋“ค์„ ๋งค์นญ ๋ฐ›์œผ์„ธ์š”. programmers.co.kr ๋ฌธ์ œ ์„ค๋ช… ๋‹ค์Œ์€ ์‹ํ’ˆ์ฐฝ๊ณ ์˜ ์ •๋ณด๋ฅผ ๋‹ด์€ FOOD_WAREHOUSE ํ…Œ์ด๋ธ”์ž…๋‹ˆ๋‹ค. FOOD_WAREHOUSE ํ…Œ์ด๋ธ”์€ ๋‹ค์Œ๊ณผ ๊ฐ™์œผ๋ฉฐ WAREHOU..

[LeetCode] 511. Game Play Analysis I

๐Ÿ“ข ๋ณธ ํฌ์ŠคํŒ…์— ํ™œ์šฉ๋˜๋Š” ๊ธฐ๋ณธ ๋ฌธ์ œ ๋ฐ ์ž๋ฃŒ ์ถœ์ฒ˜๋Š” ๋ฆฌํŠธ์ฝ”๋“œ Problems, https://leetcode.com/problemset/all/์ž„์„ ๋ฐํž™๋‹ˆ๋‹ค. โ–  ๋ฌธ์ œ https://leetcode.com/problems/game-play-analysis-i/ Game Play Analysis I - LeetCode Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview. leetcode.com Table: Activity +--------------+---------+ | Column Name | Type |..

[LeetCode] 586. Customer Placing the Largest Number of Orders

๐Ÿ“ข ๋ณธ ํฌ์ŠคํŒ…์— ํ™œ์šฉ๋˜๋Š” ๊ธฐ๋ณธ ๋ฌธ์ œ ๋ฐ ์ž๋ฃŒ ์ถœ์ฒ˜๋Š” ๋ฆฌํŠธ์ฝ”๋“œ Problems, https://leetcode.com/problemset/all/์ž„์„ ๋ฐํž™๋‹ˆ๋‹ค. โ–  ๋ฌธ์ œ https://leetcode.com/problems/customer-placing-the-largest-number-of-orders/ Customer Placing the Largest Number of Orders - LeetCode Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview. leetcode.com Table: Orders +..