SQL Basic Certificate
๐‡๐จ๐šฬ€๐ง ๐ญ๐ก๐šฬ€๐ง๐ก ๐Ÿ๐ŸŽ ๐œ๐ก๐š๐ฅ๐ฅ๐ž๐ง๐ ๐ž๐ฌ ฤ‘๐šฬ‚ฬ€๐ฎ ๐ญ๐ข๐žฬ‚๐ง ๐œ๐ฎฬ‰๐š ๐’๐ž๐ซ๐ข๐ž๐ฌ ๐’๐๐‹ ๐‡๐š๐œ๐ค๐ž๐ซ๐‘๐š๐ง๐ค ๐œ๐จฬ ๐ญ๐ก๐žฬ‚ฬ‰ ๐ญ๐ก๐ข ๐œ๐ก๐ฎฬ›ฬ๐ง๐  ๐œ๐ก๐ขฬ‰ ๐’๐๐‹ ๐œ๐ก๐ฎฬ›๐š?
Trong tแป•ng sแป‘ 58 challenges cแปงa HackerRank, kiแบฟn thแปฉc ฤ‘ฦฐแปฃc chia theo 3 mแปฉc ฤ‘แป™ gแป“m ๐๐š๐ฌ๐ข๐œ – ๐Œ๐ž๐๐ข๐ฎ๐ฆ – ๐‡๐š๐ซ๐ phรขn bแป• ฤ‘แปu lรชn cรกc chแปง ฤ‘แป:
– Select: Basic, Advanced
– Join: Basic, Advanced
– Aggregation
– Alternative queries
๐‚๐ก๐ฎฬ›ฬ๐ง๐  ๐œ๐ก๐ขฬ‰ ๐’๐๐‹ ๐‡๐š๐œ๐ค๐ž๐ซ๐‘๐š๐ง๐ค gแป“m 3 bร i mแปฉc ฤ‘แป™ ๐๐š๐ฌ๐ข๐œ – ๐ˆ๐ง๐ญ๐ž๐ซ – ๐€๐๐ฏ๐š๐ง๐œ๐ž cรณ nแป™i dung nแบฑm trong 4 chแปง ฤ‘แป.
– Basic Certificate: Test vแป cรกc lแป‡nh Select
– Inter Certificate: Test vแป lแป‡nh Join, CTE, Subquery
– Advance Certificate: Test vแป lแป‡nh Join, Pivot vร  cรกc thแปง thuแบญt nรขng cao
Trong 20 challenges ฤ‘แบงu tiรชn, chรบng ta ฤ‘รฃ hoร n thร nh mแปฉc ฤ‘แป™ Basic cแปงa chแปง ฤ‘แป Select. Tแปซ ฤ‘รขy, bแบกn hoร n toร n cรณ thแปƒ thแปฉc sแปฉc vแป›i bร i Test Basic lแบฅy chแปฉng chแป‰ tแปซ HackerRank.
โšกViแป‡c รดn luyแป‡n trแปŸ nรชn dแป… dร ng hฦกn khi hแปc tแบญp qua Series video HackerRank แปŸ mแปฅc Guide โ Group SQL Vietnam hoแบทc แปŸ mแปฅc nแป•i bแบญt trang Hoร ng Hแบฃi Data
๐Ÿ”ฅTham gia ngay ฤ‘แปƒ nhanh chรณng thi chแปฉng chแป‰ vแป›i kแบฟt quแบฃ tแป‘t nhแบฅt!
Reel giแป›i thiแป‡u vแป series SQL HackerRank Challenges: