๐Ÿ’ SQL (Programmers)/Is Null

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

์„ ๋‹ฌ 2023. 3. 24. 23:45
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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

 

 

-- ์ฝ”๋“œ๋ฅผ ์ž…๋ ฅํ•˜์„ธ์š”
SELECT WAREHOUSE_ID, WAREHOUSE_NAME, ADDRESS, 
if(FREEZER_YN is NULL, 'N', FREEZER_YN) as FREEZER_YN
FROM FOOD_WAREHOUSE
WHERE ADDRESS LIKE "๊ฒฝ๊ธฐ๋„%"
ORDER by WAREHOUSE_ID asc
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