{"id":1589,"date":"2026-03-25T07:59:58","date_gmt":"2026-03-25T07:59:58","guid":{"rendered":"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/"},"modified":"2026-03-25T07:59:58","modified_gmt":"2026-03-25T07:59:58","slug":"tuning-foreign-keys-maximum-throughput-erds","status":"publish","type":"post","link":"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/","title":{"rendered":"T\u1ed1i \u01b0u h\u00f3a kh\u00f3a ngo\u1ea1i \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t cao nh\u1ea5t trong s\u01a1 \u0111\u1ed3 quan h\u1ec7 th\u1ef1c th\u1ec3"},"content":{"rendered":"
\n
\"Comic<\/figure>\n<\/div>\n

Trong ki\u1ebfn tr\u00fac c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng quan h\u1ec7, s\u1ef1 c\u0103ng th\u1eb3ng gi\u1eefa t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u v\u00e0 hi\u1ec7u su\u1ea5t l\u00e0 \u0111i\u1ec1u lu\u00f4n t\u1ed3n t\u1ea1i. C\u00e1c s\u01a1 \u0111\u1ed3 quan h\u1ec7 th\u1ef1c th\u1ec3 (ERDs) \u0111\u00f3ng vai tr\u00f2 nh\u01b0 b\u1ea3n v\u1ebd thi\u1ebft k\u1ebf cho c\u1ea5u tr\u00fac n\u00e0y, x\u00e1c \u0111\u1ecbnh c\u00e1ch c\u00e1c b\u1ea3ng k\u1ebft n\u1ed1i v\u1edbi nhau. M\u1eb7c d\u00f9 c\u00e1c kh\u00f3a ngo\u1ea1i \u0111\u1ea3m b\u1ea3o c\u00e1c m\u1ed1i quan h\u1ec7 v\u1eabn h\u1ee3p l\u1ec7, nh\u01b0ng ch\u00fang l\u1ea1i t\u1ea1o ra chi ph\u00ed ph\u1ee5 tr\u1ee3 c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh \u0111i\u1ec3m ngh\u1ebdn hi\u1ec7u su\u1ea5t. Hi\u1ec3u c\u00e1ch t\u1ed1i \u01b0u h\u00f3a c\u00e1c r\u00e0ng bu\u1ed9c n\u00e0y l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng x\u1eed l\u00fd giao d\u1ecbch kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn. H\u01b0\u1edbng d\u1eabn n\u00e0y kh\u00e1m ph\u00e1 c\u00e1c c\u01a1 ch\u1ebf t\u1ed1i \u01b0u h\u00f3a kh\u00f3a ngo\u1ea1i \u0111\u1ec3 duy tr\u00ec t\u00ednh nh\u1ea5t qu\u00e1n m\u00e0 kh\u00f4ng ph\u1ea3i hy sinh t\u1ed1c \u0111\u1ed9. \u26a1<\/p>\n

Hi\u1ec3u r\u00f5 chi ph\u00ed c\u1ee7a vi\u1ec7c th\u1ef1c thi t\u00ednh to\u00e0n v\u1eb9n \ud83d\udee1\ufe0f<\/h2>\n

C\u00e1c kh\u00f3a ngo\u1ea1i kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 nh\u00e3n; ch\u00fang l\u00e0 nh\u1eefng quy t\u1eafc ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c th\u1ef1c thi b\u1edfi b\u1ed9 \u0111\u1ed9ng c\u01a1 c\u01a1 s\u1edf d\u1eef li\u1ec7u. M\u1ed7i thao t\u00e1c ch\u00e8n, c\u1eadp nh\u1eadt ho\u1eb7c x\u00f3a c\u00f3 li\u00ean quan \u0111\u1ebfn kh\u00f3a ngo\u1ea1i s\u1ebd k\u00edch ho\u1ea1t logic ki\u1ec3m tra. Logic n\u00e0y ki\u1ec3m tra b\u1ea3ng cha \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o gi\u00e1 tr\u1ecb tham chi\u1ebfu t\u1ed3n t\u1ea1i. Trong m\u00f4i tr\u01b0\u1eddng c\u00f3 l\u01b0u l\u01b0\u1ee3ng cao, thao t\u00e1c ki\u1ec3m tra n\u00e0y tr\u1edf th\u00e0nh m\u1ed9t chi ph\u00ed \u0111\u00e1ng k\u1ec3.<\/p>\n

Quy tr\u00ecnh ki\u1ec3m tra th\u01b0\u1eddng bao g\u1ed3m:<\/p>\n

    \n
  • C\u00e1c thao t\u00e1c tra c\u1ee9u:<\/strong> H\u1ec7 th\u1ed1ng ph\u1ea3i t\u00ecm ki\u1ebfm trong b\u1ea3ng cha \u0111\u1ec3 t\u00ecm ID tham chi\u1ebfu.<\/li>\n
  • C\u01a1 ch\u1ebf kh\u00f3a:<\/strong> Th\u01b0\u1eddng th\u00ec h\u00e0ng cha c\u1ea7n \u0111\u01b0\u1ee3c kh\u00f3a \u0111\u1ec3 ng\u0103n ch\u1eb7n thay \u0111\u1ed5i \u0111\u1ed3ng th\u1eddi trong qu\u00e1 tr\u00ecnh ki\u1ec3m tra.<\/li>\n
  • Duy\u1ec7t ch\u1ec9 m\u1ee5c:<\/strong> N\u1ebfu kh\u00f4ng c\u00f3 ch\u1ec9 m\u1ee5c ph\u00f9 h\u1ee3p, b\u1ed9 x\u1eed l\u00fd s\u1ebd qu\u00e9t m\u1ed9t ph\u1ea7n l\u1edbn b\u1ea3ng cha.<\/li>\n<\/ul>\n

    Khi h\u00e0ng tri\u1ec7u giao d\u1ecbch x\u1ea3y ra m\u1ed7i gi\u00e2y, nh\u1eefng \u0111\u1ed9 tr\u1ec5 vi m\u00f4 n\u00e0y t\u00edch t\u1ee5 l\u1ea1i. M\u1ee5c ti\u00eau kh\u00f4ng ph\u1ea3i l\u00e0 lo\u1ea1i b\u1ecf t\u00ednh to\u00e0n v\u1eb9n, m\u00e0 l\u00e0 t\u1ed1i \u01b0u h\u00f3a quy tr\u00ecnh x\u00e1c minh. H\u00e3y xem x\u00e9t c\u00e1c t\u00ecnh hu\u1ed1ng sau \u0111\u00e2y m\u00e0 chi ph\u00ed ph\u1ee5 tr\u1ee3 n\u00e0y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t:<\/p>\n

      \n
    • Nh\u1eadp d\u1eef li\u1ec7u h\u00e0ng lo\u1ea1t:<\/strong>Vi\u1ec7c t\u1ea3i d\u1eef li\u1ec7u l\u1ecbch s\u1eed th\u01b0\u1eddng y\u00eau c\u1ea7u t\u1ea1m th\u1eddi v\u00f4 hi\u1ec7u h\u00f3a c\u00e1c r\u00e0ng bu\u1ed9c.<\/li>\n
    • Ghi d\u1eef li\u1ec7u t\u1ea7n su\u1ea5t cao:<\/strong>C\u00e1c h\u1ec7 th\u1ed1ng ghi nh\u1eadt k\u00fd s\u1ef1 ki\u1ec7n ho\u1eb7c d\u1eef li\u1ec7u c\u1ea3m bi\u1ebfn c\u00f3 th\u1ec3 \u01b0u ti\u00ean t\u1ed1c \u0111\u1ed9 h\u01a1n l\u00e0 t\u00ednh nh\u1ea5t qu\u00e1n t\u1ee9c th\u00ec.<\/li>\n
    • C\u00e1c thao t\u00e1c lan truy\u1ec1n:<\/strong>Vi\u1ec7c x\u00f3a m\u1ed9t b\u1ea3n ghi cha c\u00f3 th\u1ec3 k\u00edch ho\u1ea1t c\u00e1c c\u1eadp nh\u1eadt tr\u00ean nhi\u1ec1u b\u1ea3ng con.<\/li>\n<\/ul>\n

      Chi\u1ebfn l\u01b0\u1ee3c ch\u1ec9 m\u1ee5c cho kh\u00f3a ngo\u1ea1i \ud83d\udd0d<\/h2>\n

      Ch\u1ec9 m\u1ee5c l\u00e0 c\u00f4ng c\u1ee5 tr\u1ef1c ti\u1ebfp nh\u1ea5t \u0111\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t kh\u00f3a ngo\u1ea1i. B\u1ea3ng con ph\u1ea3i c\u00f3 ch\u1ec9 m\u1ee5c tr\u00ean c\u1ed9t kh\u00f3a ngo\u1ea1i \u0111\u1ec3 tr\u00e1nh qu\u00e9t to\u00e0n b\u1ed9 b\u1ea3ng trong qu\u00e1 tr\u00ecnh c\u1eadp nh\u1eadt. N\u1ebfu kh\u00f4ng c\u00f3 ch\u1ec9 m\u1ee5c, c\u01a1 s\u1edf d\u1eef li\u1ec7u ph\u1ea3i duy\u1ec7t to\u00e0n b\u1ed9 b\u1ea3ng cha \u0111\u1ec3 x\u00e1c minh m\u1ed1i quan h\u1ec7.<\/p>\n

      C\u00e1c y\u1ebfu t\u1ed1 quan tr\u1ecdng c\u1ea7n xem x\u00e9t khi ch\u1ec9 m\u1ee5c bao g\u1ed3m:<\/p>\n

        \n
      • Th\u1ee9 t\u1ef1 c\u1ed9t:<\/strong> N\u1ebfu kh\u00f3a ngo\u1ea1i l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a ch\u1ec9 m\u1ee5c k\u1ebft h\u1ee3p, v\u1ecb tr\u00ed c\u1ee7a n\u00f3 s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn l\u1eadp k\u1ebf ho\u1ea1ch truy v\u1ea5n.<\/li>\n
      • \u0110\u1ed9ng c\u01a1 l\u01b0u tr\u1eef:<\/strong>C\u00e1c l\u1edbp l\u01b0u tr\u1eef kh\u00e1c nhau x\u1eed l\u00fd ch\u1ec9 m\u1ee5c theo c\u00e1ch kh\u00e1c nhau. C\u00e1c c\u1ea5u tr\u00fac B-Tree ph\u1ed5 bi\u1ebfn, nh\u01b0ng ch\u1ec9 m\u1ee5c Hash c\u00f3 th\u1ec3 cung c\u1ea5p t\u1ed1c \u0111\u1ed9 tra c\u1ee9u nhanh h\u01a1n cho c\u00e1c ki\u1ec3m tra b\u1eb1ng nhau.<\/li>\n
      • Ch\u1ec9 m\u1ee5c bao ph\u1ee7:<\/strong>Vi\u1ec7c bao g\u1ed3m kh\u00f3a ngo\u1ea1i trong ch\u1ec9 m\u1ee5c cho ph\u00e9p b\u1ed9 x\u1eed l\u00fd truy xu\u1ea5t d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng c\u1ea7n truy c\u1eadp v\u00e0o heap.<\/li>\n<\/ul>\n

        M\u1ed9t sai l\u1ea7m ph\u1ed5 bi\u1ebfn l\u00e0 cho r\u1eb1ng kh\u00f3a ch\u00ednh l\u00e0 \u0111\u1ee7. N\u1ebfu c\u1ed9t kh\u00f3a ngo\u1ea1i th\u01b0\u1eddng xuy\u00ean \u0111\u01b0\u1ee3c truy v\u1ea5n ho\u1eb7c c\u1eadp nh\u1eadt, n\u00f3 c\u1ea7n c\u00f3 ch\u1ec9 m\u1ee5c ri\u00eang bi\u1ec7t. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o b\u01b0\u1edbc x\u00e1c minh kh\u00f4ng tr\u1edf th\u00e0nh qu\u00e9t tu\u1ea7n t\u1ef1.<\/p>\n

        Lo\u1ea1i r\u00e0ng bu\u1ed9c v\u00e0 t\u00e1c \u0111\u1ed9ng c\u1ee7a ch\u00fang \ud83d\udcca<\/h2>\n

        Kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c kh\u00f3a ngo\u1ea1i \u0111\u1ec1u ho\u1ea1t \u0111\u1ed9ng gi\u1ed1ng nhau. \u0110\u1ecbnh ngh\u0129a c\u1ee7a r\u00e0ng bu\u1ed9c s\u1ebd x\u00e1c \u0111\u1ecbnh h\u00e0nh vi kh\u00f3a v\u00e0 ph\u1ea1m vi ki\u1ec3m tra. Vi\u1ec7c ch\u1ecdn lo\u1ea1i r\u00e0ng bu\u1ed9c ph\u00f9 h\u1ee3p l\u00e0 m\u1ed9t quy\u1ebft \u0111\u1ecbnh thi\u1ebft k\u1ebf then ch\u1ed1t.<\/p>\n

        So s\u00e1nh c\u00e1c h\u00e0nh vi r\u00e0ng bu\u1ed9c sau:<\/p>\n\n\n\n\n\n\n\n\n
        Lo\u1ea1i r\u00e0ng bu\u1ed9c<\/th>\n\u1ea2nh h\u01b0\u1edfng khi ghi<\/th>\n\u1ea2nh h\u01b0\u1edfng khi \u0111\u1ecdc<\/th>\nTr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/th>\n<\/tr>\n<\/thead>\n
        FK ti\u00eau chu\u1ea9n<\/strong><\/td>\nCao (kh\u00f3a b\u1ea3ng cha)<\/td>\nTh\u1ea5p<\/td>\nD\u1eef li\u1ec7u giao d\u1ecbch c\u1ed1t l\u00f5i<\/td>\n<\/tr>\n
        Ho\u00e3n l\u1ea1i<\/strong><\/td>\nTrung b\u00ecnh (ki\u1ec3m tra khi ho\u00e0n t\u1ea5t)<\/td>\nTh\u1ea5p<\/td>\nT\u1ea3i kh\u1ed1i \/ C\u00f4ng vi\u1ec7c h\u00e0ng lo\u1ea1t<\/td>\n<\/tr>\n
        Kh\u00f4ng c\u00f3 ch\u1ec9 m\u1ee5c<\/strong><\/td>\nTrung b\u00ecnh (qu\u00e9t b\u1ea3ng cha)<\/td>\nTrung b\u00ecnh<\/td>\nM\u1ed9t-nhi\u1ec1u v\u1edbi c\u1eadp nh\u1eadt hi\u1ebfm<\/td>\n<\/tr>\n
        C\u1ea5p \u0111\u1ed9 \u1ee9ng d\u1ee5ng<\/strong><\/td>\nTh\u1ea5p (kh\u00f4ng kh\u00f3a c\u01a1 s\u1edf d\u1eef li\u1ec7u)<\/td>\nTh\u1ea5p<\/td>\nGhi nh\u1eadt k\u00fd t\u1ed1c \u0111\u1ed9 cao<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        Ki\u1ec3m tra r\u00e0ng bu\u1ed9c ho\u00e3n l\u1ea1i cho ph\u00e9p c\u01a1 s\u1edf d\u1eef li\u1ec7u b\u1ecf qua vi\u1ec7c x\u00e1c th\u1ef1c trong su\u1ed1t giao d\u1ecbch v\u00e0 ch\u1ec9 th\u1ef1c hi\u1ec7n ki\u1ec3m tra khi ho\u00e0n t\u1ea5t. \u0110i\u1ec1u n\u00e0y l\u00e0m gi\u1ea3m th\u1eddi gian kh\u00f3a b\u1ea3ng cha. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch khi nhi\u1ec1u h\u00e0ng trong b\u1ea3ng con tham chi\u1ebfu \u0111\u1ebfn c\u00f9ng m\u1ed9t b\u1ea3ng cha, ho\u1eb7c khi h\u00e0ng cha c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u1ea1o trong c\u00f9ng m\u1ed9t giao d\u1ecbch.<\/p>\n

        Ph\u00f3ng \u0111\u1ea1i ghi v\u00e0 logic lan truy\u1ec1n \ud83d\udd04<\/h2>\n

        C\u00e1c thao t\u00e1c lan truy\u1ec1n l\u00e0 c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd \u0111\u1ec3 duy tr\u00ec \u0111\u1ed9 s\u1ea1ch d\u1eef li\u1ec7u, nh\u01b0ng ch\u00fang g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng ph\u00f3ng \u0111\u1ea1i ghi. Khi m\u1ed9t b\u1ea3n ghi cha b\u1ecb x\u00f3a, h\u1ec7 th\u1ed1ng ph\u1ea3i t\u00ecm ki\u1ebfm v\u00e0 x\u00f3a t\u1eebng b\u1ea3n ghi con li\u00ean quan. \u0110i\u1ec1u n\u00e0y l\u00e0m t\u0103ng s\u1ed1 l\u01b0\u1ee3ng thao t\u00e1c I\/O c\u1ea7n thi\u1ebft.<\/p>\n

        C\u00e1c chi\u1ebfn l\u01b0\u1ee3c gi\u1ea3m thi\u1ec3u \u0111i\u1ec1u n\u00e0y bao g\u1ed3m:<\/p>\n

          \n
        • X\u00f3a m\u1ec1m:<\/strong>Thay v\u00ec x\u00f3a v\u1eadt l\u00fd c\u00e1c b\u1ea3n ghi, \u0111\u00e1nh d\u1ea5u ch\u00fang l\u00e0 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng. \u0110i\u1ec1u n\u00e0y lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n chu\u1ed7i lan truy\u1ec1n.<\/li>\n
        • Thi\u1ebft l\u1eadp th\u00e0nh NULL:<\/strong>N\u1ebfu m\u1ed1i quan h\u1ec7 l\u00e0 t\u00f9y ch\u1ecdn, thi\u1ebft l\u1eadp kh\u00f3a ngo\u1ea1i th\u00e0nh NULL nhanh h\u01a1n vi\u1ec7c x\u00f3a c\u00e1c h\u00e0ng con.<\/li>\n
        • H\u1ea1n ch\u1ebf<\/strong> Ng\u0103n ch\u1eb7n x\u00f3a n\u1ebfu t\u1ed3n t\u1ea1i c\u00e1c b\u1ea3n ghi con. \u0110i\u1ec1u n\u00e0y bu\u1ed9c \u1ee9ng d\u1ee5ng ph\u1ea3i x\u1eed l\u00fd d\u1ecdn d\u1eb9p theo c\u00e1ch ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c.<\/li>\n<\/ul>\n

          Trong c\u00e1c h\u1ec7 th\u1ed1ng ph\u00e2n t\u00e1n, vi\u1ec7c x\u00f3a cascading c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c \u0111\u1ec9nh \u0111\u1ed9 tr\u1ec5. Vi\u1ec7c x\u00f3a m\u1ed9t b\u1ea3n ghi cha duy nh\u1ea5t c\u00f3 th\u1ec3 k\u00edch ho\u1ea1t h\u00e0ng ng\u00e0n b\u1ea3n c\u1eadp nh\u1eadt b\u1ea3n ghi con tr\u00ean c\u00e1c shard kh\u00e1c nhau. Th\u01b0\u1eddng th\u00ec t\u1ed1t h\u01a1n khi x\u1eed l\u00fd d\u1ecdn d\u1eb9p theo c\u00e1ch b\u1ea5t \u0111\u1ed3ng b\u1ed9 b\u1eb1ng c\u00e1c t\u00e1c v\u1ee5 ch\u1ea1y n\u1ec1n.<\/p>\n

          C\u00e1c c\u00e2n nh\u1eafc v\u1ec1 ph\u00e2n v\u00f9ng v\u00e0 chia nh\u1ecf d\u1eef li\u1ec7u \ud83c\udf10<\/h2>\n

          Khi d\u1eef li\u1ec7u m\u1edf r\u1ed9ng, hi\u1ec7u su\u1ea5t c\u1ee7a b\u1ea3ng \u0111\u01a1n l\u1ebb s\u1ebd gi\u1ea3m s\u00fat. Ph\u00e2n v\u00f9ng chia b\u1ea3ng l\u1edbn th\u00e0nh c\u00e1c ph\u1ea7n nh\u1ecf d\u1ec5 qu\u1ea3n l\u00fd h\u01a1n. C\u00e1c kh\u00f3a ngo\u1ea1i l\u00e0m ph\u1ee9c t\u1ea1p qu\u00e1 tr\u00ecnh n\u00e0y v\u00ec m\u1ed1i quan h\u1ec7 ph\u1ea3i tr\u1ea3i d\u00e0i qua nhi\u1ec1u ph\u00e2n v\u00f9ng.<\/p>\n

          C\u00e1c th\u00e1ch th\u1ee9c trong m\u00f4i tr\u01b0\u1eddng \u0111\u00e3 ph\u00e2n v\u00f9ng bao g\u1ed3m:<\/p>\n

            \n
          • Kh\u00f3a ch\u00e9o ph\u00e2n v\u00f9ng:<\/strong> N\u1ebfu b\u1ea3ng cha v\u00e0 b\u1ea3ng con \u0111\u01b0\u1ee3c ph\u00e2n v\u00f9ng theo c\u00e1ch kh\u00e1c nhau, h\u1ec7 th\u1ed1ng ph\u1ea3i ph\u1ed1i h\u1ee3p c\u00e1c kh\u00f3a qua c\u00e1c ph\u00e2n v\u00f9ng.<\/li>\n
          • Chi ph\u00ed \u0111\u1ecbnh tuy\u1ebfn:<\/strong> C\u00e1c truy v\u1ea5n ph\u1ea3i x\u00e1c \u0111\u1ecbnh ph\u00e2n v\u00f9ng n\u00e0o ch\u1ee9a d\u1eef li\u1ec7u tham chi\u1ebfu.<\/li>\n
          • Kh\u00f3a chia nh\u1ecf:<\/strong> C\u1ed9t kh\u00f3a ngo\u1ea1i n\u00ean l\u00e0 kh\u00f3a chia nh\u1ecf \u0111\u1ec3 d\u1eef li\u1ec7u li\u00ean quan \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef c\u00f9ng nhau.<\/li>\n<\/ul>\n

            N\u1ebfu kh\u00f3a ngo\u1ea1i kh\u00f4ng ph\u1ea3i l\u00e0 kh\u00f3a chia nh\u1ecf, h\u1ec7 th\u1ed1ng ph\u1ea3i \u0111\u1ecbnh tuy\u1ebfn truy v\u1ea5n \u0111\u1ebfn shard \u0111\u00fang \u0111\u1ec3 x\u00e1c th\u1ef1c. \u0110\u1ed9 tr\u1ec5 m\u1ea1ng n\u00e0y t\u00edch l\u0169y l\u1ea1i. Vi\u1ec7c l\u01b0u tr\u1eef c\u00e1c b\u1ea3n ghi cha v\u00e0 con c\u00f9ng m\u1ed9t n\u00fat s\u1ebd gi\u1ea3m thi\u1ec3u chi ph\u00ed n\u00e0y.<\/p>\n

            C\u00e1c m\u1ee9c c\u00f4 l\u1eadp giao d\u1ecbch v\u00e0 b\u0103ng th\u00f4ng \ud83e\udde9<\/h2>\n

            M\u1ee9c c\u00f4 l\u1eadp x\u00e1c \u0111\u1ecbnh c\u00e1ch c\u00e1c giao d\u1ecbch t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau. M\u1ee9c c\u00f4 l\u1eadp cao h\u01a1n cung c\u1ea5p \u0111\u1ed9 nh\u1ea5t qu\u00e1n m\u1ea1nh h\u01a1n nh\u01b0ng l\u00e0m t\u0103ng c\u1ea1nh tranh. Kh\u00f3a ngo\u1ea1i t\u01b0\u01a1ng t\u00e1c tr\u1ef1c ti\u1ebfp v\u1edbi c\u01a1 ch\u1ebf kh\u00f3a \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi m\u1ee9c c\u00f4 l\u1eadp.<\/p>\n

            T\u00e1c \u0111\u1ed9ng c\u00f4 l\u1eadp ph\u1ed5 bi\u1ebfn:<\/p>\n

              \n
            • \u0110\u1ecdc \u0111\u01b0\u1ee3c cam k\u1ebft:<\/strong> Cho ph\u00e9p \u0111\u1ecdc d\u1eef li\u1ec7u b\u1ea9n. Ki\u1ec3m tra kh\u00f3a ngo\u1ea1i c\u00f3 th\u1ec3 th\u1ea5y d\u1eef li\u1ec7u ch\u01b0a \u0111\u01b0\u1ee3c cam k\u1ebft t\u1eeb c\u00e1c giao d\u1ecbch kh\u00e1c, c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn t\u00ecnh tr\u1ea1ng c\u1ea1nh tranh.<\/li>\n
            • \u0110\u1ecdc l\u1eb7p l\u1ea1i:<\/strong> Kh\u00f3a b\u1ea3n ghi cha trong su\u1ed1t th\u1eddi gian giao d\u1ecbch. \u0110i\u1ec1u n\u00e0y ng\u0103n ch\u1eb7n \u0111\u1ecdc ma (phantom reads) nh\u01b0ng l\u00e0m gi\u1ea3m t\u00ednh song song.<\/li>\n
            • C\u00f3 th\u1ec3 tu\u1ea7n t\u1ef1 h\u00f3a:<\/strong> Cung c\u1ea5p m\u1ee9c an to\u00e0n cao nh\u1ea5t. Kh\u00f3a ngo\u1ea1i \u0111\u01b0\u1ee3c th\u1ef1c thi nghi\u00eam ng\u1eb7t, nh\u01b0ng b\u0103ng th\u00f4ng gi\u1ea3m \u0111\u00e1ng k\u1ec3 do ph\u1ea3i tu\u1ea7n t\u1ef1 h\u00f3a.<\/li>\n<\/ul>\n

              Vi\u1ec7c ch\u1ecdn m\u1ee9c c\u00f4 l\u1eadp th\u1ea5p nh\u1ea5t th\u1ecfa m\u00e3n logic kinh doanh c\u1ee7a b\u1ea1n l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt t\u1ed1i \u01b0u h\u00f3a ti\u00eau chu\u1ea9n. N\u1ebfu \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 ch\u1ea5p nh\u1eadn t\u00ednh nh\u1ea5t qu\u00e1n cu\u1ed1i c\u00f9ng, gi\u1ea3m m\u1ee9c c\u00f4 l\u1eadp c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 b\u0103ng th\u00f4ng ghi.<\/p>\n

              C\u00e1c ch\u1ec9 s\u1ed1 gi\u00e1m s\u00e1t v\u00e0 b\u1ea3o tr\u00ec \ud83d\udcc8<\/h2>\n

              T\u1ed1i \u01b0u h\u00f3a l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh li\u00ean t\u1ee5c. B\u1ea1n ph\u1ea3i gi\u00e1m s\u00e1t c\u00e1c ch\u1ec9 s\u1ed1 c\u1ee5 th\u1ec3 \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c \u0111i\u1ec3m ngh\u1ebdn li\u00ean quan \u0111\u1ebfn kh\u00f3a ngo\u1ea1i.<\/p>\n

              C\u00e1c ch\u1ec9 s\u1ed1 ch\u00ednh c\u1ea7n theo d\u00f5i:<\/p>\n

                \n
              • Th\u1eddi gian ch\u1edd kh\u00f3a:<\/strong>Gi\u00e1 tr\u1ecb cao cho th\u1ea5y s\u1ef1 c\u1ea1nh tranh tr\u00ean c\u00e1c b\u1ea3ng cha.<\/li>\n
              • S\u1eed d\u1ee5ng ch\u1ec9 m\u1ee5c:<\/strong>C\u00e1c ch\u1ec9 m\u1ee5c kh\u00f4ng s\u1eed d\u1ee5ng l\u00e3ng ph\u00ed dung l\u01b0\u1ee3ng l\u01b0u tr\u1eef v\u00e0 l\u00e0m ch\u1eadm thao t\u00e1c ghi.<\/li>\n
              • T\u1ea7n su\u1ea5t deadlock:<\/strong> C\u00e1c kh\u00f3a ngo\u1ea1i th\u01b0\u1eddng l\u00e0 nguy\u00ean nh\u00e2n g\u00e2y ch\u1ebft m\u00e1y trong c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u1ed3ng th\u1eddi.<\/li>\n
              • Th\u1eddi gian th\u1ef1c thi truy v\u1ea5n:<\/strong>C\u00e1c thao t\u00e1c ch\u00e8n ch\u1eadm th\u01b0\u1eddng cho th\u1ea5y s\u1ef1 thi\u1ebfu v\u1eafng ch\u1ec9 m\u1ee5c tr\u00ean c\u00e1c c\u1ed9t kh\u00f3a ngo\u1ea1i.<\/li>\n<\/ul>\n

                Vi\u1ec7c ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 s\u01a1 \u0111\u1ed3 ERD so v\u1edbi c\u00e1c m\u1eabu truy v\u1ea5n th\u1ef1c t\u1ebf \u0111\u1ea3m b\u1ea3o thi\u1ebft k\u1ebf ph\u00f9 h\u1ee3p v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng c\u00f4ng vi\u1ec7c. M\u1ed9t l\u01b0\u1ee3c \u0111\u1ed3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho truy v\u1ea5n \u0111\u1ecdc nhi\u1ec1u c\u00f3 th\u1ec3 kh\u00e1c v\u1edbi l\u01b0\u1ee3c \u0111\u1ed3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho truy v\u1ea5n ghi nhi\u1ec1u.<\/p>\n

                C\u00e1c b\u01b0\u1edbc tri\u1ec3n khai th\u1ef1c t\u1ebf \ud83d\udee0\ufe0f<\/h2>\n

                Vi\u1ec7c tri\u1ec3n khai c\u00e1c t\u1ed1i \u01b0u n\u00e0y \u0111\u00f2i h\u1ecfi m\u1ed9t c\u00e1ch ti\u1ebfp c\u1eadn c\u00f3 c\u1ea5u tr\u00fac. H\u00e3y tu\u00e2n theo c\u00e1c b\u01b0\u1edbc sau \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh m\u00f4i tr\u01b0\u1eddng c\u1ee7a b\u1ea1n:<\/p>\n

                  \n
                1. Ph\u00e2n t\u00edch kh\u1ed1i l\u01b0\u1ee3ng c\u00f4ng vi\u1ec7c hi\u1ec7n t\u1ea1i:<\/strong> X\u00e1c \u0111\u1ecbnh c\u00e1c b\u1ea3ng n\u00e0o t\u1ea1o ra nhi\u1ec1u vi ph\u1ea1m kh\u00f3a ngo\u1ea1i ho\u1eb7c tranh ch\u1ea5p kh\u00f3a nh\u1ea5t.<\/li>\n
                2. Ph\u00e2n t\u00edch k\u1ebf ho\u1ea1ch truy v\u1ea5n:<\/strong> \u0110\u1ea3m b\u1ea3o c\u00e1c c\u1ed9t kh\u00f3a ngo\u1ea1i \u0111\u01b0\u1ee3c bao ph\u1ee7 b\u1edfi ch\u1ec9 m\u1ee5c.<\/li>\n
                3. Xem x\u00e9t l\u1ea1i c\u00e1c quy t\u1eafc cascading:<\/strong> X\u00e1c \u0111\u1ecbnh xem vi\u1ec7c x\u00f3a c\u1ee9ng c\u00f3 th\u1ef1c s\u1ef1 c\u1ea7n thi\u1ebft hay x\u00f3a m\u1ec1m l\u00e0 \u0111\u1ee7.<\/li>\n
                4. Ki\u1ec3m th\u1eed \u0111\u1ed3ng th\u1eddi:<\/strong>M\u00f4 ph\u1ecfng c\u00e1c thao t\u00e1c ghi kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn \u0111\u1ec3 \u0111o l\u01b0\u1eddng m\u1ee9c \u0111\u1ed9 tranh ch\u1ea5p kh\u00f3a.<\/li>\n
                5. Tinh ch\u1ec9nh r\u00e0ng bu\u1ed9c:<\/strong> Chuy\u1ec3n t\u1eeb ON DELETE CASCADE<\/em> sang x\u1eed l\u00fd d\u1ecdn d\u1eb9p \u1edf c\u1ea5p \u0111\u1ed9 \u1ee9ng d\u1ee5ng khi ph\u00f9 h\u1ee3p.<\/li>\n<\/ol>\n

                  B\u1eb1ng c\u00e1ch h\u1ec7 th\u1ed1ng h\u00f3a vi\u1ec7c gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 n\u00e0y, b\u1ea1n s\u1ebd gi\u1ea3m b\u1edbt s\u1ef1 m\u00e2u thu\u1eabn gi\u1eefa t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u v\u00e0 t\u1ed1c \u0111\u1ed9 h\u1ec7 th\u1ed1ng. K\u1ebft qu\u1ea3 l\u00e0 m\u1ed9t ki\u1ebfn tr\u00fac v\u1eefng ch\u1eafc c\u00f3 kh\u1ea3 n\u0103ng x\u1eed l\u00fd quy m\u00f4 l\u1edbn m\u00e0 kh\u00f4ng l\u00e0m gi\u1ea3m \u0111\u1ed9 tin c\u1eady.<\/p>\n","protected":false},"excerpt":{"rendered":"

                  Trong ki\u1ebfn tr\u00fac c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng quan h\u1ec7, s\u1ef1 c\u0103ng th\u1eb3ng gi\u1eefa t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u v\u00e0 hi\u1ec7u su\u1ea5t l\u00e0 \u0111i\u1ec1u lu\u00f4n t\u1ed3n t\u1ea1i. C\u00e1c s\u01a1 \u0111\u1ed3 quan…<\/p>\n","protected":false},"author":1,"featured_media":1590,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"T\u1ed1i \u01b0u h\u00f3a kh\u00f3a ngo\u1ea1i \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t cao nh\u1ea5t trong s\u01a1 \u0111\u1ed3 ERD \ud83d\udddd\ufe0f","_yoast_wpseo_metadesc":"T\u1ed1i \u01b0u h\u00f3a t\u00ednh to\u00e0n v\u1eb9n quan h\u1ec7 v\u00e0 t\u1ed1c \u0111\u1ed9. H\u1ecdc c\u00e1c chi\u1ebfn l\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a kh\u00f3a ngo\u1ea1i cho c\u00e1c thi\u1ebft k\u1ebf s\u01a1 \u0111\u1ed3 ERD hi\u1ec7u su\u1ea5t cao m\u00e0 kh\u00f4ng hy sinh t\u00ednh nh\u1ea5t qu\u00e1n d\u1eef li\u1ec7u.","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[65],"tags":[80,84],"class_list":["post-1589","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-database-design","tag-academic","tag-erd"],"yoast_head":"\nT\u1ed1i \u01b0u h\u00f3a kh\u00f3a ngo\u1ea1i \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t cao nh\u1ea5t trong s\u01a1 \u0111\u1ed3 ERD \ud83d\udddd\ufe0f<\/title>\n<meta name=\"description\" content=\"T\u1ed1i \u01b0u h\u00f3a t\u00ednh to\u00e0n v\u1eb9n quan h\u1ec7 v\u00e0 t\u1ed1c \u0111\u1ed9. H\u1ecdc c\u00e1c chi\u1ebfn l\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a kh\u00f3a ngo\u1ea1i cho c\u00e1c thi\u1ebft k\u1ebf s\u01a1 \u0111\u1ed3 ERD hi\u1ec7u su\u1ea5t cao m\u00e0 kh\u00f4ng hy sinh t\u00ednh nh\u1ea5t qu\u00e1n d\u1eef li\u1ec7u.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"T\u1ed1i \u01b0u h\u00f3a kh\u00f3a ngo\u1ea1i \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t cao nh\u1ea5t trong s\u01a1 \u0111\u1ed3 ERD \ud83d\udddd\ufe0f\" \/>\n<meta property=\"og:description\" content=\"T\u1ed1i \u01b0u h\u00f3a t\u00ednh to\u00e0n v\u1eb9n quan h\u1ec7 v\u00e0 t\u1ed1c \u0111\u1ed9. H\u1ecdc c\u00e1c chi\u1ebfn l\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a kh\u00f3a ngo\u1ea1i cho c\u00e1c thi\u1ebft k\u1ebf s\u01a1 \u0111\u1ed3 ERD hi\u1ec7u su\u1ea5t cao m\u00e0 kh\u00f4ng hy sinh t\u00ednh nh\u1ea5t qu\u00e1n d\u1eef li\u1ec7u.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/\" \/>\n<meta property=\"og:site_name\" content=\"Ez Knowledge Vietnamese - Latest in AI & Software Innovation\" \/>\n<meta property=\"article:published_time\" content=\"2026-03-25T07:59:58+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ez-knowledge.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/03\/tuning-foreign-keys-erd-throughput-infographic.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1664\" \/>\n\t<meta property=\"og:image:height\" content=\"928\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"vpadmin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"vpadmin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"15 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/\"},\"author\":{\"name\":\"vpadmin\",\"@id\":\"https:\/\/www.ez-knowledge.com\/vi\/#\/schema\/person\/33c28d3655923323cf039801026316a1\"},\"headline\":\"T\u1ed1i \u01b0u h\u00f3a kh\u00f3a ngo\u1ea1i \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t cao nh\u1ea5t trong s\u01a1 \u0111\u1ed3 quan h\u1ec7 th\u1ef1c th\u1ec3\",\"datePublished\":\"2026-03-25T07:59:58+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/\"},\"wordCount\":2925,\"publisher\":{\"@id\":\"https:\/\/www.ez-knowledge.com\/vi\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.ez-knowledge.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/03\/tuning-foreign-keys-erd-throughput-infographic.jpg\",\"keywords\":[\"academic\",\"erd\"],\"articleSection\":[\"Database Design\"],\"inLanguage\":\"vi\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/\",\"url\":\"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/\",\"name\":\"T\u1ed1i \u01b0u h\u00f3a kh\u00f3a ngo\u1ea1i \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t cao nh\u1ea5t trong s\u01a1 \u0111\u1ed3 ERD \ud83d\udddd\ufe0f\",\"isPartOf\":{\"@id\":\"https:\/\/www.ez-knowledge.com\/vi\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.ez-knowledge.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/03\/tuning-foreign-keys-erd-throughput-infographic.jpg\",\"datePublished\":\"2026-03-25T07:59:58+00:00\",\"description\":\"T\u1ed1i \u01b0u h\u00f3a t\u00ednh to\u00e0n v\u1eb9n quan h\u1ec7 v\u00e0 t\u1ed1c \u0111\u1ed9. H\u1ecdc c\u00e1c chi\u1ebfn l\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a kh\u00f3a ngo\u1ea1i cho c\u00e1c thi\u1ebft k\u1ebf s\u01a1 \u0111\u1ed3 ERD hi\u1ec7u su\u1ea5t cao m\u00e0 kh\u00f4ng hy sinh t\u00ednh nh\u1ea5t qu\u00e1n d\u1eef li\u1ec7u.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/#breadcrumb\"},\"inLanguage\":\"vi\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/#primaryimage\",\"url\":\"https:\/\/www.ez-knowledge.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/03\/tuning-foreign-keys-erd-throughput-infographic.jpg\",\"contentUrl\":\"https:\/\/www.ez-knowledge.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/03\/tuning-foreign-keys-erd-throughput-infographic.jpg\",\"width\":1664,\"height\":928},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.ez-knowledge.com\/vi\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"T\u1ed1i \u01b0u h\u00f3a kh\u00f3a ngo\u1ea1i \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t cao nh\u1ea5t trong s\u01a1 \u0111\u1ed3 quan h\u1ec7 th\u1ef1c th\u1ec3\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.ez-knowledge.com\/vi\/#website\",\"url\":\"https:\/\/www.ez-knowledge.com\/vi\/\",\"name\":\"Ez Knowledge Vietnamese - Latest in AI & Software Innovation\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/www.ez-knowledge.com\/vi\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.ez-knowledge.com\/vi\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"vi\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.ez-knowledge.com\/vi\/#organization\",\"name\":\"Ez Knowledge Vietnamese - Latest in AI & Software Innovation\",\"url\":\"https:\/\/www.ez-knowledge.com\/vi\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\/\/www.ez-knowledge.com\/vi\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.ez-knowledge.com\/vi\/wp-content\/uploads\/sites\/10\/2025\/03\/ez-knowledge-logo.png\",\"contentUrl\":\"https:\/\/www.ez-knowledge.com\/vi\/wp-content\/uploads\/sites\/10\/2025\/03\/ez-knowledge-logo.png\",\"width\":512,\"height\":512,\"caption\":\"Ez Knowledge Vietnamese - Latest in AI & Software Innovation\"},\"image\":{\"@id\":\"https:\/\/www.ez-knowledge.com\/vi\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.ez-knowledge.com\/vi\/#\/schema\/person\/33c28d3655923323cf039801026316a1\",\"name\":\"vpadmin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g\",\"caption\":\"vpadmin\"},\"sameAs\":[\"https:\/\/www.ez-knowledge.com\"],\"url\":\"https:\/\/www.ez-knowledge.com\/vi\/author\/vpadmin\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"T\u1ed1i \u01b0u h\u00f3a kh\u00f3a ngo\u1ea1i \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t cao nh\u1ea5t trong s\u01a1 \u0111\u1ed3 ERD \ud83d\udddd\ufe0f","description":"T\u1ed1i \u01b0u h\u00f3a t\u00ednh to\u00e0n v\u1eb9n quan h\u1ec7 v\u00e0 t\u1ed1c \u0111\u1ed9. H\u1ecdc c\u00e1c chi\u1ebfn l\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a kh\u00f3a ngo\u1ea1i cho c\u00e1c thi\u1ebft k\u1ebf s\u01a1 \u0111\u1ed3 ERD hi\u1ec7u su\u1ea5t cao m\u00e0 kh\u00f4ng hy sinh t\u00ednh nh\u1ea5t qu\u00e1n d\u1eef li\u1ec7u.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/","og_locale":"vi_VN","og_type":"article","og_title":"T\u1ed1i \u01b0u h\u00f3a kh\u00f3a ngo\u1ea1i \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t cao nh\u1ea5t trong s\u01a1 \u0111\u1ed3 ERD \ud83d\udddd\ufe0f","og_description":"T\u1ed1i \u01b0u h\u00f3a t\u00ednh to\u00e0n v\u1eb9n quan h\u1ec7 v\u00e0 t\u1ed1c \u0111\u1ed9. H\u1ecdc c\u00e1c chi\u1ebfn l\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a kh\u00f3a ngo\u1ea1i cho c\u00e1c thi\u1ebft k\u1ebf s\u01a1 \u0111\u1ed3 ERD hi\u1ec7u su\u1ea5t cao m\u00e0 kh\u00f4ng hy sinh t\u00ednh nh\u1ea5t qu\u00e1n d\u1eef li\u1ec7u.","og_url":"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/","og_site_name":"Ez Knowledge Vietnamese - Latest in AI & Software Innovation","article_published_time":"2026-03-25T07:59:58+00:00","og_image":[{"width":1664,"height":928,"url":"https:\/\/www.ez-knowledge.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/03\/tuning-foreign-keys-erd-throughput-infographic.jpg","type":"image\/jpeg"}],"author":"vpadmin","twitter_card":"summary_large_image","twitter_misc":{"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi":"vpadmin","\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc":"15 ph\u00fat"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/#article","isPartOf":{"@id":"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/"},"author":{"name":"vpadmin","@id":"https:\/\/www.ez-knowledge.com\/vi\/#\/schema\/person\/33c28d3655923323cf039801026316a1"},"headline":"T\u1ed1i \u01b0u h\u00f3a kh\u00f3a ngo\u1ea1i \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t cao nh\u1ea5t trong s\u01a1 \u0111\u1ed3 quan h\u1ec7 th\u1ef1c th\u1ec3","datePublished":"2026-03-25T07:59:58+00:00","mainEntityOfPage":{"@id":"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/"},"wordCount":2925,"publisher":{"@id":"https:\/\/www.ez-knowledge.com\/vi\/#organization"},"image":{"@id":"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/#primaryimage"},"thumbnailUrl":"https:\/\/www.ez-knowledge.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/03\/tuning-foreign-keys-erd-throughput-infographic.jpg","keywords":["academic","erd"],"articleSection":["Database Design"],"inLanguage":"vi"},{"@type":"WebPage","@id":"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/","url":"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/","name":"T\u1ed1i \u01b0u h\u00f3a kh\u00f3a ngo\u1ea1i \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t cao nh\u1ea5t trong s\u01a1 \u0111\u1ed3 ERD \ud83d\udddd\ufe0f","isPartOf":{"@id":"https:\/\/www.ez-knowledge.com\/vi\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/#primaryimage"},"image":{"@id":"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/#primaryimage"},"thumbnailUrl":"https:\/\/www.ez-knowledge.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/03\/tuning-foreign-keys-erd-throughput-infographic.jpg","datePublished":"2026-03-25T07:59:58+00:00","description":"T\u1ed1i \u01b0u h\u00f3a t\u00ednh to\u00e0n v\u1eb9n quan h\u1ec7 v\u00e0 t\u1ed1c \u0111\u1ed9. H\u1ecdc c\u00e1c chi\u1ebfn l\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a kh\u00f3a ngo\u1ea1i cho c\u00e1c thi\u1ebft k\u1ebf s\u01a1 \u0111\u1ed3 ERD hi\u1ec7u su\u1ea5t cao m\u00e0 kh\u00f4ng hy sinh t\u00ednh nh\u1ea5t qu\u00e1n d\u1eef li\u1ec7u.","breadcrumb":{"@id":"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/#breadcrumb"},"inLanguage":"vi","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/"]}]},{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/#primaryimage","url":"https:\/\/www.ez-knowledge.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/03\/tuning-foreign-keys-erd-throughput-infographic.jpg","contentUrl":"https:\/\/www.ez-knowledge.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/03\/tuning-foreign-keys-erd-throughput-infographic.jpg","width":1664,"height":928},{"@type":"BreadcrumbList","@id":"https:\/\/www.ez-knowledge.com\/vi\/tuning-foreign-keys-maximum-throughput-erds\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.ez-knowledge.com\/vi\/"},{"@type":"ListItem","position":2,"name":"T\u1ed1i \u01b0u h\u00f3a kh\u00f3a ngo\u1ea1i \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t cao nh\u1ea5t trong s\u01a1 \u0111\u1ed3 quan h\u1ec7 th\u1ef1c th\u1ec3"}]},{"@type":"WebSite","@id":"https:\/\/www.ez-knowledge.com\/vi\/#website","url":"https:\/\/www.ez-knowledge.com\/vi\/","name":"Ez Knowledge Vietnamese - Latest in AI & Software Innovation","description":"","publisher":{"@id":"https:\/\/www.ez-knowledge.com\/vi\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.ez-knowledge.com\/vi\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"vi"},{"@type":"Organization","@id":"https:\/\/www.ez-knowledge.com\/vi\/#organization","name":"Ez Knowledge Vietnamese - Latest in AI & Software Innovation","url":"https:\/\/www.ez-knowledge.com\/vi\/","logo":{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/www.ez-knowledge.com\/vi\/#\/schema\/logo\/image\/","url":"https:\/\/www.ez-knowledge.com\/vi\/wp-content\/uploads\/sites\/10\/2025\/03\/ez-knowledge-logo.png","contentUrl":"https:\/\/www.ez-knowledge.com\/vi\/wp-content\/uploads\/sites\/10\/2025\/03\/ez-knowledge-logo.png","width":512,"height":512,"caption":"Ez Knowledge Vietnamese - Latest in AI & Software Innovation"},"image":{"@id":"https:\/\/www.ez-knowledge.com\/vi\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.ez-knowledge.com\/vi\/#\/schema\/person\/33c28d3655923323cf039801026316a1","name":"vpadmin","image":{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g","caption":"vpadmin"},"sameAs":["https:\/\/www.ez-knowledge.com"],"url":"https:\/\/www.ez-knowledge.com\/vi\/author\/vpadmin\/"}]}},"_links":{"self":[{"href":"https:\/\/www.ez-knowledge.com\/vi\/wp-json\/wp\/v2\/posts\/1589","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ez-knowledge.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ez-knowledge.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ez-knowledge.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ez-knowledge.com\/vi\/wp-json\/wp\/v2\/comments?post=1589"}],"version-history":[{"count":0,"href":"https:\/\/www.ez-knowledge.com\/vi\/wp-json\/wp\/v2\/posts\/1589\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ez-knowledge.com\/vi\/wp-json\/wp\/v2\/media\/1590"}],"wp:attachment":[{"href":"https:\/\/www.ez-knowledge.com\/vi\/wp-json\/wp\/v2\/media?parent=1589"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ez-knowledge.com\/vi\/wp-json\/wp\/v2\/categories?post=1589"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ez-knowledge.com\/vi\/wp-json\/wp\/v2\/tags?post=1589"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}