๋ฐ์ดํ„ฐ ํ‘œํ˜„ / ์ง„๋ฒ•

๐Ÿ’ป ๋ฐ์ดํ„ฐ ํ‘œํ˜„ - ๋น„ํŠธ ํŒจํ„ด ํ•˜๋‚˜์˜ ์ปดํ“จํ„ฐ์—์„œ ๋ชจ๋“  ์œ ํ˜•์˜ ๋ฐ์ดํ„ฐ๋ฅผ ์ฒ˜๋ฆฌํ•˜๊ธฐ ์œ„ํ•ด์„œ๋Š” ๋ฐ์ดํ„ฐ์˜ ํ˜•ํƒœ์— ๋ฌด๊ด€ํ•˜๊ฒŒ ํ‘œํ˜„ํ•˜๋Š” ๋ฐฉ์‹์ด ํ•„์š” > ๋น„ํŠธ ํŒจํ„ด ์ปดํ“จํ„ฐ ์™ธ๋ถ€์˜ ๋ชจ๋“  ๋ฐ์ดํ„ฐ๋Š” ๊ธฐ๊ณ„๊ฐ€ ์ดํ•ดํ•˜๊ณ  ๋‹ค๋ฃฐ ์ˆ˜ ์žˆ๋Š” ๋น„ํŠธ ํŒจํ„ด์œผ๋กœ ๋ณ€ํ™˜๋˜์–ด ์ปดํ“จํ„ฐ ๋ฉ”๋ชจ๋ฆฌ์— ์ €์žฅ, ์ฒ˜๋ฆฌ๋œ ํ›„ ์‚ฌ์šฉ์ž์—๊ฒŒ ๋ณด์—ฌ ์ค„ ํ˜•ํƒœ๋กœ ๋‹ค์‹œ ๋ณ€ํ™˜๋˜์–ด ์ถœ๋ ฅ๋จ ๋ฉ”๋ชจ๋ฆฌ๋Š” ๋ฐ์ดํ„ฐ๋ฅผ ์ €์žฅํ•˜๋Š” ๊ธฐ๋Šฅ๋งŒ์„... Continue reading...

Computer Science - ์ปดํ“จํ„ฐ ์‹œ์Šคํ…œ / ํฐ๋…ธ์ด๋งŒ ๊ตฌ์กฐ

๐Ÿ’ป ์ปดํ“จํ„ฐ ๊ณผํ•™(Computer Science)์ด๋ž€? ๐Ÿ”— Computer science is the study of computers and computational systems. It is a broad field which includes everything from the algorithms that make up software to how software interacts with hardware to how well software is developed and designed. ๋ฐ์ดํ„ฐ์˜ ํš๋“, ํ‘œํ˜„, ์ฒ˜๋ฆฌ, ์ €์žฅ, ํ†ต์‹ ,... Continue reading...

[ABAP] CHECK / CONTINUE / EXIT / RETURN

How to Work With Check, Countinue, Exit, Stop and Return in SAP ABAP Program ๐ŸŒ CHECK ์กฐ๊ฑด์— ๋”ฐ๋ผ loop๋‚˜ Processing block ์ข…๋ฃŒ ํ˜„์žฌ CHECK ๊ตฌ๋ฌธ์˜ ์กฐ๊ฑด์ด false๋ผ๋ฉด CHECK ์ดํ›„์˜ ๊ตฌ๋ฌธ์€ ๊ฑด๋„ˆ๋›ฐ๊ณ , ๋‹ค์Œ loop ์‹คํ–‰ ํ•ด๋‹น ์กฐ๊ฑด์ด ๋งž๋Š” ๊ฒฝ์šฐ๋งŒ ์ž‘์—… ์ˆ˜ํ–‰ ๐ŸŒ CONTINUE LOOP-ENDLOOP, DO-ENDDO, WHILE-ENDWHILE ์•ˆ์—์„œ ํ•ด๋‹น ์กฐ๊ฑด์— ๋Œ€ํ•œ ์‹คํ–‰์„... Continue reading...

[ABAP] NATIVE SQL

๐Ÿ‘ OPEN SQL๋งŒ์œผ๋กœ๋Š” ์›ํ•˜๋Š” ์ฟผ๋ฆฌ๋ฅผ ์“ธ ์ˆ˜ ์—†๋Š” ๊ฒฝ์šฐ๊ฐ€ ์žˆ๋Š”๋ฐ, NATIVE SQL์„ ์‚ฌ์šฉํ•ด SELECT ํ•˜๋Š” ๋‘ ๊ฐ€์ง€ ๋ฐฉ๋ฒ•์„ ์•Œ์•„๋ณด์ž. ๐Ÿ‘ TYPES: BEGIN OF gty_s_test, f1 TYPE ~, f2 TYPE ~, ... , END OF gty_s_test, gty_t_test TYPE TABLE OF gty_s_test. DATA: gt_test TYPE TABLE OF gty_s_test WITH HEADER LINE. "or... Continue reading...

[์ •์ฒ˜๊ธฐ ์‹ค๊ธฐ] ์ •์ฒ˜๊ธฐ ์‹ค๊ธฐ ๋ฒผ๋ฝ์น˜๊ธฐ

โšก๐Ÿคช ์ •์ฒ˜๊ธฐ ์‹ค๊ธฐ 10์ผ ๋ฒผ๋ฝ์น˜๊ธฐ ๐Ÿ’ฅโšก ๐Ÿ’ข ๋ณ‘ํ–‰ ์ œ์–ด ๋ฏธ๋ณด์žฅ ์‹œ ๋ฌธ์ œ์  Lost Update ๊ฐฑ์‹ ์†์‹ค : ๋จผ์ € ์‹คํ–‰๋œ ํŠธ๋žœ์žญ์…˜ ๊ฒฐ๊ณผ ๋‚˜์ค‘์— ์‹คํ–‰๋œ ํŠธ๋žœ์žญ์…˜์ด ๋ฎ์–ด์“ธ ๋•Œ Dirty Read ํ˜„ํ™ฉ ํŒŒ์•…์˜ค๋ฅ˜ : ํŠธ๋žœ์žญ์…˜ ์ค‘๊ฐ„ ์ˆ˜ํ–‰ ๊ฒฐ๊ณผ ๋‹ค๋ฅธ ํŠธ๋žœ์žญ์…˜์ด ์ฐธ์กฐ Inconsistency ๋ชจ์ˆœ์„ฑ : ๋‘ ํŠธ๋žœ์žญ์…˜์ด ๋™์‹œ์— ์‹คํ–‰ > ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค ๊ด€์„ฑ ๊ฒฐ์—ฌ Cascading Rollback... Continue reading...