{"id":478671,"date":"2023-08-09T09:36:47","date_gmt":"2023-08-09T09:36:47","guid":{"rendered":""},"modified":"2023-09-05T11:17:19","modified_gmt":"2023-09-05T11:17:19","slug":"referential-integrity","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/ir\/wiki\/referential-integrity\/","title":{"rendered":"\u062a\u0645\u0627\u0645\u06cc\u062a \u0627\u0631\u062c\u0627\u0639\u06cc"},"content":{"rendered":"<h2>\u0645\u0639\u0631\u0641\u06cc<\/h2>\n<p>\u062f\u0631 \u0642\u0644\u0645\u0631\u0648 \u0645\u062f\u06cc\u0631\u06cc\u062a \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647\u060c \u06cc\u06a9\u067e\u0627\u0631\u0686\u06af\u06cc \u0627\u0631\u062c\u0627\u0639\u06cc \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u0645\u0641\u0647\u0648\u0645 \u062d\u06cc\u0627\u062a\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0632\u06cc\u0631\u0628\u0646\u0627\u06cc \u06cc\u06a9\u067e\u0627\u0631\u0686\u06af\u06cc \u0648 \u0642\u0627\u0628\u0644\u06cc\u062a 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\u062f\u0647\u062f \u06a9\u0647 \u0631\u0648\u0627\u0628\u0637 \u0628\u06cc\u0646 \u0645\u0648\u062c\u0648\u062f\u06cc\u062a \u0647\u0627\u06cc \u062f\u0627\u062f\u0647 \u062f\u0642\u06cc\u0642 \u0648 \u0642\u0627\u0628\u0644 \u0627\u0639\u062a\u0645\u0627\u062f \u0628\u0627\u0642\u06cc \u0645\u06cc \u0645\u0627\u0646\u062f.<\/li>\n<li><strong>\u0627\u0632 \u062b\u0628\u062a \u06cc\u062a\u06cc\u0645 \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0645\u06cc \u06a9\u0646\u062f<\/strong>: \u0627\u0632 \u0627\u06cc\u062c\u0627\u062f \u0631\u06a9\u0648\u0631\u062f\u0647\u0627\u06cc \u06cc\u062a\u06cc\u0645 \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0645\u06cc \u06a9\u0646\u062f\u060c \u062c\u0627\u06cc\u06cc \u06a9\u0647 \u06cc\u06a9 \u06a9\u0644\u06cc\u062f \u062e\u0627\u0631\u062c\u06cc \u0628\u0647 \u06cc\u06a9 \u06a9\u0644\u06cc\u062f \u0627\u0635\u0644\u06cc \u063a\u06cc\u0631\u0648\u062c\u0648\u062f \u0627\u0634\u0627\u0631\u0647 \u0645\u06cc \u06a9\u0646\u062f.<\/li>\n<li><strong>\u062a\u0639\u0645\u06cc\u0631 \u0648 \u0646\u06af\u0647\u062f\u0627\u0631\u06cc \u062e\u0648\u062f\u06a9\u0627\u0631<\/strong>: \u0641\u0631\u0622\u06cc\u0646\u062f \u062d\u0641\u0638 \u06cc\u06a9\u067e\u0627\u0631\u0686\u06af\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627 \u0631\u0627 \u0628\u0627 \u0627\u062c\u0631\u0627\u06cc \u062e\u0648\u062f\u06a9\u0627\u0631 \u0642\u0648\u0627\u0646\u06cc\u0646 \u0633\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u062f.<\/li>\n<\/ul>\n<h2>\u0627\u0646\u0648\u0627\u0639 \u06cc\u06a9\u067e\u0627\u0631\u0686\u06af\u06cc \u0627\u0631\u062c\u0627\u0639\u06cc<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u062a\u0627\u06cc\u067e \u06a9\u0646\u06cc\u062f<\/th>\n<th>\u0634\u0631\u062d<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0635\u062f\u0627\u0642\u062a \u0642\u0648\u06cc<\/td>\n<td>\u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u062d\u0627\u0635\u0644 \u0645\u06cc \u06a9\u0646\u062f \u06a9\u0647 \u0647\u0645\u0647 \u06a9\u0644\u06cc\u062f\u0647\u0627\u06cc \u062e\u0627\u0631\u062c\u06cc \u062f\u0627\u0631\u0627\u06cc \u0645\u0631\u0627\u062c\u0639 \u06a9\u0644\u06cc\u062f \u0627\u0635\u0644\u06cc \u0645\u0639\u062a\u0628\u0631 \u0647\u0633\u062a\u0646\u062f.<\/td>\n<\/tr>\n<tr>\n<td>\u0635\u062f\u0627\u0642\u062a \u0636\u0639\u06cc\u0641<\/td>\n<td>\u0628\u0647 \u0645\u0642\u0627\u062f\u06cc\u0631 NULL \u062f\u0631 \u06a9\u0644\u06cc\u062f\u0647\u0627\u06cc \u062e\u0627\u0631\u062c\u06cc \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc \u062f\u0647\u062f\u060c \u0647\u0645\u0686\u0646\u0627\u0646 \u0627\u0632 \u0627\u0631\u062c\u0627\u0639\u0627\u062a \u0645\u0639\u062a\u0628\u0631 \u0628\u0631\u0627\u06cc \u0645\u0642\u0627\u062f\u06cc\u0631 \u063a\u06cc\u0631 NULL \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u062d\u0627\u0635\u0644 \u0645\u06cc \u06a9\u0646\u062f.<\/td>\n<\/tr>\n<tr>\n<td>\u06cc\u06a9\u067e\u0627\u0631\u0686\u06af\u06cc \u0645\u0639\u0646\u0627\u06cc\u06cc<\/td>\n<td>\u0634\u0627\u0645\u0644 \u0645\u062d\u062f\u0648\u062f\u06cc\u062a\u200c\u0647\u0627\u06cc \u062e\u0627\u0635 \u062f\u0627\u0645\u0646\u0647 \u0627\u0633\u062a\u060c \u0648 \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u062d\u0627\u0635\u0644 \u0645\u06cc\u200c\u06a9\u0646\u062f \u06a9\u0647 \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u062f\u0631 \u0686\u0627\u0631\u0686\u0648\u0628 \u0622\u0646 \u0645\u0646\u0637\u0642\u06cc \u0647\u0633\u062a\u0646\u062f.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u0628\u0631\u0646\u0627\u0645\u0647 \u0647\u0627\u060c \u0686\u0627\u0644\u0634 \u0647\u0627 \u0648 \u0631\u0627\u0647 \u062d\u0644 \u0647\u0627<\/h2>\n<p>\u06cc\u06a9\u067e\u0627\u0631\u0686\u06af\u06cc \u0627\u0631\u062c\u0627\u0639 \u062f\u0631 \u0628\u062e\u0634 \u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u0627\u0632 \u062c\u0645\u0644\u0647 \u062a\u062c\u0627\u0631\u062a\u060c \u0627\u0645\u0648\u0631 \u0645\u0627\u0644\u06cc\u060c \u0645\u0631\u0627\u0642\u0628\u062a \u0647\u0627\u06cc \u0628\u0647\u062f\u0627\u0634\u062a\u06cc \u0648 \u063a\u06cc\u0631\u0647 \u06a9\u0627\u0631\u0628\u0631\u062f \u062f\u0627\u0631\u062f. \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u0686\u0627\u0644\u0634 \u0647\u0627\u06cc\u06cc \u0645\u0627\u0646\u0646\u062f \u0628\u0631\u062e\u0648\u0631\u062f \u0628\u0627 \u0645\u062c\u0645\u0648\u0639\u0647 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0628\u0632\u0631\u06af\u060c \u0633\u0631\u0628\u0627\u0631 \u0639\u0645\u0644\u06a9\u0631\u062f \u0648 \u0631\u0648\u0627\u0628\u0637 \u067e\u06cc\u0686\u06cc\u062f\u0647 \u0631\u0627 \u0628\u0647 \u0647\u0645\u0631\u0627\u0647 \u062f\u0627\u0631\u062f. \u0631\u0627\u0647 \u062d\u0644 \u0647\u0627 \u0634\u0627\u0645\u0644 \u0646\u0645\u0627\u06cc\u0647 \u0633\u0627\u0632\u06cc \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647\u060c \u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u067e\u0631\u0633 \u0648 \u062c\u0648 \u0648 \u0637\u0631\u0627\u062d\u06cc \u062f\u0642\u06cc\u0642 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0627\u0633\u062a.<\/p>\n<h2>\u0645\u0642\u0627\u06cc\u0633\u0647 \u0628\u0627 \u0627\u0635\u0637\u0644\u0627\u062d\u0627\u062a \u0645\u0634\u0627\u0628\u0647<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u0645\u062f\u062a\u060c \u0627\u0635\u0637\u0644\u0627\u062d<\/th>\n<th>\u0634\u0631\u062d<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u06cc\u06a9\u067e\u0627\u0631\u0686\u06af\u06cc \u062f\u0627\u062f\u0647<\/td>\n<td>\u0645\u0641\u0647\u0648\u0645 \u06af\u0633\u062a\u0631\u062f\u0647 \u062a\u0631\u060c \u0628\u0647 \u062f\u0642\u062a \u0648 \u0642\u0627\u0628\u0644\u06cc\u062a \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u06a9\u0644\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627 \u0627\u0634\u0627\u0631\u0647 \u062f\u0627\u0631\u062f.<\/td>\n<\/tr>\n<tr>\n<td>\u06cc\u06a9\u067e\u0627\u0631\u0686\u06af\u06cc \u0645\u0648\u062c\u0648\u062f\u06cc\u062a<\/td>\n<td>\u0628\u0631 \u062d\u0641\u0638 \u06a9\u0644\u06cc\u062f\u0647\u0627\u06cc \u0627\u0648\u0644\u06cc\u0647 \u0645\u0646\u062d\u0635\u0631 \u0628\u0647 \u0641\u0631\u062f \u0648 \u063a\u06cc\u0631 \u062a\u0647\u06cc \u062a\u0645\u0631\u06a9\u0632 \u0645\u06cc \u06a9\u0646\u062f.<\/td>\n<\/tr>\n<tr>\n<td>\u06cc\u06a9\u067e\u0627\u0631\u0686\u06af\u06cc \u062f\u0627\u0645\u0646\u0647<\/td>\n<td>\u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u062d\u0627\u0635\u0644 \u0645\u06cc \u06a9\u0646\u062f \u06a9\u0647 \u0645\u0642\u0627\u062f\u06cc\u0631 \u062f\u0631 \u06cc\u06a9 \u0633\u062a\u0648\u0646 \u0628\u0647 \u0645\u062d\u062f\u0648\u062f\u06cc\u062a \u0647\u0627\u06cc \u062e\u0627\u0635 \u067e\u0627\u06cc\u0628\u0646\u062f \u0647\u0633\u062a\u0646\u062f.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u0686\u0634\u0645 \u0627\u0646\u062f\u0627\u0632\u0647\u0627 \u0648 \u0641\u0646\u0627\u0648\u0631\u06cc \u0647\u0627\u06cc \u0622\u06cc\u0646\u062f\u0647<\/h2>\n<p>\u0622\u06cc\u0646\u062f\u0647 \u06cc\u06a9\u067e\u0627\u0631\u0686\u06af\u06cc \u0627\u0631\u062c\u0627\u0639\u06cc \u062f\u0631 \u067e\u06cc\u0634\u0631\u0641\u062a \u062f\u0631 \u0633\u06cc\u0633\u062a\u0645 \u0647\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647\u060c \u0627\u0632 \u062c\u0645\u0644\u0647 \u062a\u0634\u062e\u06cc\u0635 \u0646\u0627\u0647\u0646\u062c\u0627\u0631\u06cc \u0645\u0628\u062a\u0646\u06cc \u0628\u0631 \u0647\u0648\u0634 \u0645\u0635\u0646\u0648\u0639\u06cc \u0648 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0642\u0627\u0628\u0644\u06cc\u062a \u0647\u0627\u06cc \u06cc\u06a9\u067e\u0627\u0631\u0686\u0647 \u0633\u0627\u0632\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627 \u0646\u0647\u0641\u062a\u0647 \u0627\u0633\u062a. \u0641\u0646\u0627\u0648\u0631\u06cc \u0628\u0644\u0627\u06a9 \u0686\u06cc\u0646 \u0647\u0645\u0686\u0646\u06cc\u0646 \u0641\u0631\u0635\u062a \u0647\u0627\u06cc\u06cc \u0631\u0627 \u0628\u0631\u0627\u06cc \u0627\u062c\u0631\u0627\u06cc \u06cc\u06a9\u067e\u0627\u0631\u0686\u06af\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u063a\u06cc\u0631\u0645\u062a\u0645\u0631\u06a9\u0632 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u062f\u0647\u062f.<\/p>\n<h2>\u0633\u0631\u0648\u0631\u0647\u0627\u06cc \u067e\u0631\u0648\u06a9\u0633\u06cc \u0648 \u06cc\u06a9\u067e\u0627\u0631\u0686\u06af\u06cc \u0645\u0631\u062c\u0639<\/h2>\n<p>\u0633\u0631\u0648\u0631\u0647\u0627\u06cc \u067e\u0631\u0648\u06a9\u0633\u06cc\u060c \u0645\u0627\u0646\u0646\u062f \u0633\u0631\u0648\u0631\u0647\u0627\u06cc \u0627\u0631\u0627\u0626\u0647 \u0634\u062f\u0647 \u062a\u0648\u0633\u0637 OneProxy\u060c \u0646\u0642\u0634 \u0645\u0647\u0645\u06cc \u062f\u0631 \u062d\u0641\u0638 \u0627\u0645\u0646\u06cc\u062a \u062f\u0627\u062f\u0647 \u0647\u0627 \u0648 \u062d\u0641\u0638 \u062d\u0631\u06cc\u0645 \u062e\u0635\u0648\u0635\u06cc \u062f\u0627\u0631\u0646\u062f. \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0645\u0633\u062a\u0642\u06cc\u0645\u0627\u064b \u0628\u0647 \u06cc\u06a9\u067e\u0627\u0631\u0686\u06af\u06cc \u0627\u0631\u062c\u0627\u0639\u06cc \u0648\u0627\u0628\u0633\u062a\u0647 \u0646\u06cc\u0633\u062a\u0646\u062f\u060c \u0633\u0631\u0648\u0631\u0647\u0627\u06cc \u067e\u0631\u0648\u06a9\u0633\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u062d\u0641\u0627\u0638\u062a \u0627\u0632 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0631\u0627 \u0628\u0627 \u0639\u0645\u0644 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0648\u0627\u0633\u0637\u0647 \u0628\u06cc\u0646 \u0645\u0634\u062a\u0631\u06cc\u0627\u0646 \u0648 \u0633\u0631\u0648\u0631\u0647\u0627 \u0627\u0641\u0632\u0627\u06cc\u0634 \u062f\u0647\u0646\u062f. \u0622\u0646\u0647\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u0647\u0648\u06cc\u062a \u0645\u0634\u062a\u0631\u06cc \u0631\u0627 \u067e\u0646\u0647\u0627\u0646 \u06a9\u0646\u0646\u062f\u060c \u0627\u0631\u062a\u0628\u0627\u0637\u0627\u062a \u0631\u0627 \u0631\u0645\u0632\u06af\u0630\u0627\u0631\u06cc \u06a9\u0646\u0646\u062f \u0648 \u062a\u0631\u0627\u0641\u06cc\u06a9 \u0645\u062e\u0631\u0628 \u0631\u0627 \u0641\u06cc\u0644\u062a\u0631 \u06a9\u0646\u0646\u062f\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0628\u0647 \u0637\u0648\u0631 \u063a\u06cc\u0631 \u0645\u0633\u062a\u0642\u06cc\u0645 \u0628\u0647 \u0627\u06a9\u0648\u0633\u06cc\u0633\u062a\u0645 \u06cc\u06a9\u067e\u0627\u0631\u0686\u06af\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627 \u06a9\u0645\u06a9 \u0645\u06cc \u06a9\u0646\u0646\u062f.<\/p>\n<h2>\u0644\u06cc\u0646\u06a9 \u0647\u0627\u06cc \u0645\u0631\u0628\u0648\u0637\u0647<\/h2>\n<p>\u0628\u0631\u0627\u06cc \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0628\u06cc\u0634\u062a\u0631 \u062f\u0631 \u0645\u0648\u0631\u062f \u06cc\u06a9\u067e\u0627\u0631\u0686\u06af\u06cc \u0627\u0631\u062c\u0627\u0639\u06cc\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0645\u0646\u0627\u0628\u0639 \u0632\u06cc\u0631 \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u06cc\u062f:<\/p>\n<ol>\n<li><a href=\"https:\/\/dl.acm.org\/doi\/10.1145\/362384.362685\" target=\"_new\" rel=\"noopener nofollow\">\u0645\u0642\u0627\u0644\u0647 \u0627\u0635\u0644\u06cc \u06a9\u0627\u062f \u062f\u0631 \u0645\u0648\u0631\u062f \u0645\u062f\u0644 \u0631\u0627\u0628\u0637\u0647 \u0627\u06cc<\/a><\/li>\n<li><a href=\"https:\/\/www.ibm.com\/cloud\/learn\/referential-integrity\" target=\"_new\" rel=\"noopener nofollow\">\u062f\u0631\u06a9 \u06cc\u06a9\u067e\u0627\u0631\u0686\u06af\u06cc \u0627\u0631\u062c\u0627\u0639 \u062f\u0631 \u067e\u0627\u06cc\u06af\u0627\u0647 \u0647\u0627\u06cc \u062f\u0627\u062f\u0647<\/a><\/li>\n<li><a href=\"https:\/\/www.geeksforgeeks.org\/sql-constraints-for-data-integrity\/\" target=\"_new\" rel=\"noopener nofollow\">\u0645\u062d\u062f\u0648\u062f\u06cc\u062a \u0647\u0627\u06cc SQL \u0628\u0631\u0627\u06cc \u06cc\u06a9\u067e\u0627\u0631\u0686\u06af\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627<\/a><\/li>\n<\/ol>\n<p>\u062f\u0631 \u0646\u062a\u06cc\u062c\u0647\u060c \u06cc\u06a9\u067e\u0627\u0631\u0686\u06af\u06cc \u0627\u0631\u062c\u0627\u0639\u06cc \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u0631\u06a9\u0646 \u0627\u0633\u0627\u0633\u06cc \u062f\u0631 \u0642\u0644\u0645\u0631\u0648 \u0645\u062f\u06cc\u0631\u06cc\u062a \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0645\u06cc \u0627\u06cc\u0633\u062a\u062f \u0648 \u0627\u0632 \u062f\u0642\u062a\u060c \u0642\u0627\u0628\u0644\u06cc\u062a \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u0648 \u0627\u0646\u0633\u062c\u0627\u0645 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0628\u0647 \u0647\u0645 \u067e\u06cc\u0648\u0633\u062a\u0647 \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f. \u062a\u06a9\u0627\u0645\u0644 \u062a\u0627\u0631\u06cc\u062e\u06cc\u060c \u0645\u06a9\u0627\u0646\u06cc\u0633\u0645\u200c\u0647\u0627\u06cc \u062f\u0631\u0648\u0646\u06cc\u060c \u0627\u0646\u0648\u0627\u0639\u060c \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627 \u0648 \u0686\u0627\u0644\u0634\u200c\u0647\u0627\u06cc \u0622\u0646 \u0628\u0647 \u0637\u0648\u0631 \u062c\u0645\u0639\u06cc \u0627\u0647\u0645\u06cc\u062a \u0622\u0646 \u0631\u0627 \u062f\u0631 \u0686\u0634\u0645\u200c\u0627\u0646\u062f\u0627\u0632 \u062f\u06cc\u062c\u06cc\u062a\u0627\u0644 \u0634\u06a9\u0644 \u0645\u06cc\u200c\u062f\u0647\u0646\u062f \u0648 \u0622\u06cc\u0646\u062f\u0647\u200c\u0627\u06cc \u0631\u0627 \u0646\u0648\u06cc\u062f \u0645\u06cc\u200c\u062f\u0647\u0646\u062f \u06a9\u0647 \u062f\u0631 \u0622\u0646 \u0627\u0632 \u06cc\u06a9\u067e\u0627\u0631\u0686\u06af\u06cc \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u067e\u06cc\u0634\u0631\u0641\u062a\u200c\u0647\u0627\u06cc \u062a\u06a9\u0646\u0648\u0644\u0648\u0698\u06cc\u06a9\u06cc \u0648 \u0627\u062c\u0631\u0627\u06cc \u062f\u0642\u06cc\u0642 \u0645\u062d\u0627\u0641\u0638\u062a \u0645\u06cc\u200c\u0634\u0648\u062f.<\/p>","protected":false},"featured_media":469343,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-478671","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Referential Integrity: Ensuring Data Consistency in a Connected World<\/mark>","faq_items":[{"question":"What is referential integrity and why is it important in databases?","answer":"<p>Referential integrity is a fundamental concept in database management that ensures the accuracy and consistency of relationships between different data entities. It prevents anomalies and errors that could occur due to accidental deletions, updates, or insertions in interconnected data. Maintaining referential integrity guarantees that your data remains reliable and coherent.<\/p>"},{"question":"Who introduced the concept of referential integrity?","answer":"<p>The concept of referential integrity was introduced by Dr. E.F. Codd in the early 1970s. His pioneering work in relational database management laid the theoretical foundation for this concept. It gained further prominence with the rise of structured query languages like SQL.<\/p>"},{"question":"How does referential integrity work?","answer":"<p>Referential integrity is enforced through a set of rules and constraints. These rules prevent actions that could compromise data integrity, such as deleting a record that is referenced by another record. These rules ensure that relationships between tables remain accurate and that foreign keys point to valid primary keys.<\/p>"},{"question":"What are the types of referential integrity?","answer":"<p>There are different types of referential integrity:<\/p><ul><li><strong>Strong Integrity<\/strong>: Ensures all foreign keys have valid primary key references.<\/li><li><strong>Weak Integrity<\/strong>: Allows NULL values in foreign keys while ensuring valid references for non-NULL values.<\/li><li><strong>Semantic Integrity<\/strong>: Involves domain-specific constraints to ensure data makes logical sense within its context.<\/li><\/ul>"},{"question":"What are the challenges of maintaining referential integrity?","answer":"<p>While referential integrity is crucial, it does come with challenges. Dealing with large datasets, performance overhead, and managing complex relationships can be daunting. However, solutions like database indexing, query optimization, and careful database design can mitigate these challenges.<\/p>"},{"question":"How does referential integrity relate to proxy servers?","answer":"<p>Although not directly tied to referential integrity, proxy servers like OneProxy play a role in enhancing data security. They act as intermediaries between clients and servers, providing encryption, identity masking, and filtering capabilities. While not enforcing referential integrity, proxy servers contribute to overall data protection.<\/p>"},{"question":"What does the future hold for referential integrity?","answer":"<p>The future of referential integrity includes advancements in database management systems. AI-driven anomaly detection, improved data integration, and even blockchain technology for decentralized data integrity enforcement are on the horizon. These developments promise to strengthen data reliability even further.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/ir\/wp-json\/wp\/v2\/wiki\/478671","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/ir\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/ir\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/ir\/wp-json\/wp\/v2\/wiki\/478671\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/ir\/wp-json\/wp\/v2\/media\/469343"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/ir\/wp-json\/wp\/v2\/media?parent=478671"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}