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\u0628\u0646\u064a\u0629 \u062a\u0634\u0628\u0647 \u0627\u0644\u0634\u062c\u0631\u0629.<\/p>\n<p>\u0639\u0646\u062f\u0645\u0627 \u064a\u062d\u062a\u0627\u062c \u0646\u0638\u0627\u0645 \u0625\u062f\u0627\u0631\u0629 \u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a (DBMS) \u0625\u0644\u0649 \u0627\u0644\u0639\u062b\u0648\u0631 \u0639\u0644\u0649 \u0633\u062c\u0644 \u0645\u0639\u064a\u0646\u060c \u0641\u0625\u0646\u0647 \u064a\u0628\u062f\u0623 \u0645\u0646 \u0627\u0644\u0639\u0642\u062f\u0629 \u0627\u0644\u062c\u0630\u0631\u064a\u0629 \u0644\u0640 B-Tree \u0648\u064a\u062a\u0646\u0642\u0644 \u0644\u0623\u0633\u0641\u0644 \u0639\u0628\u0631 \u0627\u0644\u0639\u0642\u062f \u0627\u0644\u0641\u0631\u0639\u064a\u0629 \u062d\u062a\u0649 \u064a\u062c\u062f \u0627\u0644\u0633\u062c\u0644 \u0627\u0644\u0645\u0637\u0644\u0648\u0628. \u064a\u0639\u062f \u0647\u0630\u0627 \u0623\u0633\u0631\u0639 \u0628\u0643\u062b\u064a\u0631 \u0645\u0646 \u0641\u062d\u0635 \u0643\u0644 \u0635\u0641 \u0641\u064a \u0627\u0644\u062c\u062f\u0648\u0644.<\/p>\n<h2>\u0627\u0644\u0645\u064a\u0632\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629 \u0644\u0645\u0624\u0634\u0631 \u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a<\/h2>\n<p>\u062a\u062a\u0636\u0645\u0646 \u0628\u0639\u0636 \u0627\u0644\u0645\u064a\u0632\u0627\u062a \u0627\u0644\u0628\u0627\u0631\u0632\u0629 \u0644\u0641\u0647\u0631\u0633 \u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0645\u0627 \u064a\u0644\u064a:<\/p>\n<ol>\n<li><strong>\u062a\u062d\u0633\u064a\u0646 \u0627\u0644\u0623\u062f\u0627\u0621:<\/strong> \u062a\u0639\u0645\u0644 \u0627\u0644\u0641\u0647\u0627\u0631\u0633 \u0639\u0644\u0649 \u062a\u062d\u0633\u064a\u0646 \u0633\u0631\u0639\u0629 \u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0633\u062a\u0631\u062c\u0627\u0639 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0628\u0634\u0643\u0644 \u0643\u0628\u064a\u0631.<\/li>\n<li><strong>\u0628\u0646\u0627\u0621:<\/strong> \u063a\u0627\u0644\u0628\u064b\u0627 \u0645\u0627 \u064a\u0633\u062a\u062e\u062f\u0645\u0648\u0646 \u0627\u0644\u0647\u064a\u0627\u0643\u0644 \u0627\u0644\u0645\u0633\u062a\u0646\u062f\u0629 \u0625\u0644\u0649 \u0627\u0644\u0634\u062c\u0631\u0629 (\u0645\u062b\u0644 B-Tree \u0623\u0648 B+Tree)\u060c \u0648\u0644\u0643\u0646 \u064a\u062a\u0645 \u0623\u064a\u0636\u064b\u0627 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0623\u0646\u0648\u0627\u0639 \u0623\u062e\u0631\u0649 \u0645\u062b\u0644 Hash \u0648Bitmap \u0648\u0645\u0627 \u0625\u0644\u0649 \u0630\u0644\u0643.<\/li>\n<li><strong>\u062a\u062e\u0632\u064a\u0646:<\/strong> \u064a\u0642\u0648\u0645\u0648\u0646 \u0628\u062a\u062e\u0632\u064a\u0646 \u0645\u062c\u0645\u0648\u0639\u0629 \u0641\u0631\u0639\u064a\u0629 \u0645\u0646 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0645\u0646 \u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0648\u0645\u0624\u0634\u0631 \u0625\u0644\u0649 \u0645\u0648\u0642\u0639 \u0643\u0644 \u062c\u0632\u0621 \u0645\u0646 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a.<\/li>\n<li><strong>\u0627\u0644\u0645\u0642\u0627\u064a\u0636\u0627\u062a:<\/strong> \u0623\u062b\u0646\u0627\u0621 \u062a\u062d\u0633\u064a\u0646 \u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0644\u0642\u0631\u0627\u0621\u0629\u060c \u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u0624\u062f\u064a \u0627\u0644\u0641\u0647\u0627\u0631\u0633 \u0625\u0644\u0649 \u0625\u0628\u0637\u0627\u0621 \u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0644\u0643\u062a\u0627\u0628\u0629 \u0644\u0623\u0646 \u0643\u0644 \u062a\u0639\u062f\u064a\u0644 \u0639\u0644\u0649 \u0627\u0644\u062c\u062f\u0648\u0644 \u064a\u062a\u0637\u0644\u0628 \u062a\u063a\u064a\u064a\u0631\u0627\u062a \u0645\u0642\u0627\u0628\u0644\u0629 \u0641\u064a \u0627\u0644\u0641\u0647\u0631\u0633.<\/li>\n<li><strong>\u0627\u0644\u0623\u0646\u0648\u0627\u0639:<\/strong> \u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u0643\u0648\u0646 \u0627\u0644\u0641\u0647\u0627\u0631\u0633 \u0625\u0645\u0627 \u0645\u062c\u0645\u0639\u0629 \u0623\u0648 \u063a\u064a\u0631 \u0645\u062c\u0645\u0639\u0629\u060c \u0648\u0644\u0643\u0644 \u0645\u0646\u0647\u0627 \u062e\u0635\u0627\u0626\u0635\u0647 \u0648\u0627\u0633\u062a\u062e\u062f\u0627\u0645\u0627\u062a\u0647 \u0627\u0644\u0645\u0645\u064a\u0632\u0629.<\/li>\n<\/ol>\n<h2>\u0623\u0646\u0648\u0627\u0639 \u0641\u0647\u0631\u0633 \u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a<\/h2>\n<p>\u0647\u0646\u0627\u0643 \u0641\u064a \u0627\u0644\u0645\u0642\u0627\u0645 \u0627\u0644\u0623\u0648\u0644 \u0646\u0648\u0639\u0627\u0646 \u0645\u0646 \u0627\u0644\u0641\u0647\u0627\u0631\u0633:<\/p>\n<table>\n<thead>\n<tr>\n<th><strong>\u0646\u0648\u0639 \u0627\u0644\u0641\u0647\u0631\u0633<\/strong><\/th>\n<th><strong>\u0648\u0635\u0641<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0627\u0644\u0641\u0647\u0631\u0633 \u0627\u0644\u0645\u062c\u0645\u0639<\/td>\n<td>\u064a\u062d\u062f\u062f \u0627\u0644\u0641\u0647\u0631\u0633 \u0627\u0644\u0645\u062c\u0645\u0639 \u0627\u0644\u062a\u0631\u062a\u064a\u0628 \u0627\u0644\u0641\u0639\u0644\u064a \u0644\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0641\u064a \u0627\u0644\u062c\u062f\u0648\u0644. \u0648\u0644\u0630\u0644\u0643\u060c \u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u062d\u062a\u0648\u064a \u0627\u0644\u062c\u062f\u0648\u0644 \u0639\u0644\u0649 \u0641\u0647\u0631\u0633 \u0645\u062a\u0641\u0627\u0648\u062a \u0627\u0644\u0645\u0633\u0627\u0641\u0627\u062a \u0648\u0627\u062d\u062f \u0641\u0642\u0637.<\/td>\n<\/tr>\n<tr>\n<td>\u0645\u0624\u0634\u0631 \u063a\u064a\u0631 \u0645\u062a\u0641\u0627\u0648\u062a<\/td>\n<td>\u0644\u0627 \u064a\u062d\u062f\u062f \u0627\u0644\u0641\u0647\u0631\u0633 \u063a\u064a\u0631 \u0627\u0644\u0645\u062c\u0645\u0639 \u0627\u0644\u062a\u0631\u062a\u064a\u0628 \u0627\u0644\u0641\u0639\u0644\u064a \u0644\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0641\u064a \u0627\u0644\u062c\u062f\u0648\u0644. \u0648\u0628\u062f\u0644\u0627\u064b \u0645\u0646 \u0630\u0644\u0643\u060c \u0641\u0625\u0646\u0647 \u064a\u0633\u062a\u062e\u062f\u0645 \u0645\u0624\u0634\u0631\u064b\u0627 \u0644\u062a\u062d\u062f\u064a\u062f \u0645\u0648\u0642\u0639 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a. \u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u062d\u062a\u0648\u064a \u0627\u0644\u062c\u062f\u0648\u0644 \u0639\u0644\u0649 \u0641\u0647\u0627\u0631\u0633 \u0645\u062a\u0639\u062f\u062f\u0629 \u063a\u064a\u0631 \u0645\u062c\u0645\u0639\u0629.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u0628\u0639\u0636 \u0623\u0646\u0648\u0627\u0639 \u0627\u0644\u0641\u0647\u0631\u0633 \u0627\u0644\u0623\u062e\u0631\u0649 \u0647\u064a:<\/p>\n<ol>\n<li><strong>\u0627\u0644\u0641\u0647\u0631\u0633 \u0627\u0644\u0641\u0631\u064a\u062f:<\/strong> \u064a\u0636\u0645\u0646 \u0623\u0646 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0645\u0648\u062c\u0648\u062f\u0629 \u0641\u064a \u0627\u0644\u0639\u0645\u0648\u062f \u0627\u0644\u0645\u0641\u0647\u0631\u0633 \u0641\u0631\u064a\u062f\u0629 \u0645\u0646 \u0646\u0648\u0639\u0647\u0627.<\/li>\n<li><strong>\u0627\u0644\u0645\u0624\u0634\u0631 \u0627\u0644\u0645\u0631\u0643\u0628:<\/strong> \u064a\u0633\u062a\u062e\u062f\u0645 \u0623\u0639\u0645\u062f\u0629 \u0645\u062a\u0639\u062f\u062f\u0629 \u0644\u0644\u0641\u0647\u0631\u0633.<\/li>\n<li><strong>\u0641\u0647\u0631\u0633 \u0627\u0644\u0635\u0648\u0631\u0629 \u0627\u0644\u0646\u0642\u0637\u064a\u0629:<\/strong> \u0645\u062b\u0627\u0644\u064a\u0629 \u0644\u0644\u0623\u0639\u0645\u062f\u0629 \u0627\u0644\u062a\u064a \u062a\u062d\u062a\u0648\u064a \u0639\u0644\u0649 \u0639\u062f\u062f \u0635\u063a\u064a\u0631 \u0645\u0646 \u0627\u0644\u0642\u064a\u0645 \u0627\u0644\u0645\u0645\u064a\u0632\u0629 (\u0642\u064a\u0645\u0629 \u0623\u0633\u0627\u0633\u064a\u0629 \u0645\u0646\u062e\u0641\u0636\u0629).<\/li>\n<li><strong>\u0641\u0647\u0631\u0633 \u0627\u0644\u0646\u0635 \u0627\u0644\u0643\u0627\u0645\u0644:<\/strong> \u064a\u0633\u062a\u062e\u062f\u0645 \u0644\u0644\u0628\u062d\u062b \u0639\u0646 \u0627\u0644\u0646\u0635 \u0627\u0644\u0643\u0627\u0645\u0644.<\/li>\n<li><strong>\u0627\u0644\u0641\u0647\u0631\u0633 \u0627\u0644\u0645\u0643\u0627\u0646\u064a:<\/strong> \u062a\u0633\u062a\u062e\u062f\u0645 \u0644\u0623\u0646\u0648\u0627\u0639 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0647\u0646\u062f\u0633\u064a\u0629.<\/li>\n<\/ol>\n<h2>\u062a\u0646\u0641\u064a\u0630 \u0648\u0625\u062f\u0627\u0631\u0629 \u0641\u0647\u0631\u0633 \u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a<\/h2>\n<p>\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0641\u0647\u0627\u0631\u0633\u060c \u0639\u0644\u0649 \u0627\u0644\u0631\u063a\u0645 \u0645\u0646 \u0623\u0646\u0647 \u0645\u0641\u064a\u062f\u060c \u0625\u0644\u0627 \u0623\u0646\u0647 \u064a\u062a\u0637\u0644\u0628 \u0625\u062f\u0627\u0631\u0629 \u062d\u0630\u0631\u0629. \u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u0624\u062f\u064a \u0627\u0644\u0641\u0647\u0631\u0633\u0629 \u0627\u0644\u0632\u0627\u0626\u062f\u0629 \u0625\u0644\u0649 \u0625\u0628\u0637\u0627\u0621 \u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0644\u0643\u062a\u0627\u0628\u0629 \u0648\u0625\u0647\u062f\u0627\u0631 \u0645\u0633\u0627\u062d\u0629 \u0627\u0644\u062a\u062e\u0632\u064a\u0646. \u0645\u0646 \u0646\u0627\u062d\u064a\u0629 \u0623\u062e\u0631\u0649\u060c \u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u0624\u062f\u064a \u0646\u0642\u0635 \u0627\u0644\u0641\u0647\u0631\u0633\u0629 \u0625\u0644\u0649 \u0639\u0645\u0644\u064a\u0627\u062a \u0642\u0631\u0627\u0621\u0629 \u0623\u0628\u0637\u0623.<\/p>\n<p>\u062a\u0639\u062f \u0645\u0631\u0627\u0642\u0628\u0629 \u0623\u062f\u0627\u0621 \u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u062e\u0627\u0635\u0629 \u0628\u0643 \u0648\u0627\u0644\u062a\u062d\u062f\u064a\u062b \u0627\u0644\u0645\u0646\u062a\u0638\u0645 \u0644\u0627\u0633\u062a\u0631\u0627\u062a\u064a\u062c\u064a\u0629 \u0627\u0644\u0641\u0647\u0631\u0633\u0629 \u0627\u0644\u062e\u0627\u0635\u0629 \u0628\u0643 \u0644\u062a\u0646\u0627\u0633\u0628 \u0627\u0644\u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u062d\u0627\u0644\u064a\u0629 \u0644\u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0623\u0645\u0631\u064b\u0627 \u0628\u0627\u0644\u063a \u0627\u0644\u0623\u0647\u0645\u064a\u0629. \u0643\u0645\u0627 \u0623\u0646 \u0627\u062e\u062a\u064a\u0627\u0631 \u0646\u0648\u0639 \u0627\u0644\u0641\u0647\u0631\u0633 \u0627\u0644\u0645\u0646\u0627\u0633\u0628 \u0628\u0646\u0627\u0621\u064b \u0639\u0644\u0649 \u0637\u0628\u064a\u0639\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0648\u0627\u0644\u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0644\u062a\u064a \u062a\u062a\u0645 \u0639\u0644\u064a\u0647\u0627 \u064a\u0644\u0639\u0628 \u062f\u0648\u0631\u064b\u0627 \u0645\u0647\u0645\u064b\u0627 \u0641\u064a \u0643\u0641\u0627\u0621\u0629 \u062a\u0646\u0641\u064a\u0630 \u0627\u0644\u0641\u0647\u0631\u0633.<\/p>\n<h2>\u0645\u0642\u0627\u0631\u0646\u0627\u062a \u0641\u0647\u0631\u0633 \u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0648\u062e\u0635\u0627\u0626\u0635\u0647\u0627<\/h2>\n<p>\u0641\u064a\u0645\u0627 \u064a\u0644\u064a \u062c\u062f\u0648\u0644 \u0645\u0642\u0627\u0631\u0646\u0629 \u0644\u0623\u0646\u0648\u0627\u0639 \u0627\u0644\u0641\u0647\u0627\u0631\u0633 \u0627\u0644\u0645\u062e\u062a\u0644\u0641\u0629:<\/p>\n<table>\n<thead>\n<tr>\n<th><strong>\u0646\u0648\u0639 \u0627\u0644\u0641\u0647\u0631\u0633<\/strong><\/th>\n<th><strong>\u064a\u0633\u0631\u0639 \u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0644\u0642\u0631\u0627\u0621\u0629<\/strong><\/th>\n<th><strong>\u064a\u0628\u0637\u0626 \u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0644\u0643\u062a\u0627\u0628\u0629<\/strong><\/th>\n<th><strong>\u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u0645\u0633\u0627\u062d\u0629<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0645\u062a\u062c\u0645\u0639\u0629<\/td>\n<td>\u0646\u0639\u0645<\/td>\n<td>\u0646\u0639\u0645<\/td>\n<td>\u0645\u0639\u062a\u062f\u0644<\/td>\n<\/tr>\n<tr>\n<td>\u063a\u064a\u0631 \u0645\u062a\u062c\u0645\u0639\u0629<\/td>\n<td>\u0646\u0639\u0645<\/td>\n<td>\u0646\u0639\u0645<\/td>\n<td>\u0639\u0627\u0644\u064a<\/td>\n<\/tr>\n<tr>\n<td>\u0627\u0644\u0635\u0648\u0631\u0629 \u0627\u0644\u0646\u0642\u0637\u064a\u0629<\/td>\n<td>\u0646\u0639\u0645 (\u0623\u0635\u0644\u064a\u0629 \u0645\u0646\u062e\u0641\u0636\u0629)<\/td>\n<td>\u0646\u0639\u0645<\/td>\n<td>\u0642\u0644\u064a\u0644<\/td>\n<\/tr>\n<tr>\n<td>\u0646\u0635 \u0643\u0627\u0645\u0644<\/td>\n<td>\u0646\u0639\u0645 (\u0627\u0644\u0628\u062d\u062b \u0627\u0644\u0646\u0635\u064a)<\/td>\n<td>\u0646\u0639\u0645<\/td>\n<td>\u0639\u0627\u0644\u064a<\/td>\n<\/tr>\n<tr>\n<td>\u0645\u0643\u0627\u0646\u064a<\/td>\n<td>\u0646\u0639\u0645 (\u0628\u064a\u0627\u0646\u0627\u062a \u0647\u0646\u062f\u0633\u064a\u0629)<\/td>\n<td>\u0646\u0639\u0645<\/td>\n<td>\u0639\u0627\u0644\u064a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u0648\u062c\u0647\u0627\u062a \u0627\u0644\u0646\u0638\u0631 \u0627\u0644\u0645\u0633\u062a\u0642\u0628\u0644\u064a\u0629 \u0648\u0627\u0644\u062a\u0642\u0646\u064a\u0627\u062a \u0641\u064a \u0641\u0647\u0631\u0633\u0629 \u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a<\/h2>\n<p>\u064a\u0643\u0645\u0646 \u0645\u0633\u062a\u0642\u0628\u0644 \u0641\u0647\u0631\u0633\u0629 \u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0641\u064a \u0623\u0646\u0638\u0645\u0629 \u0623\u0643\u062b\u0631 \u0622\u0644\u064a\u0629 \u0648\u0642\u0627\u0628\u0644\u0629 \u0644\u0644\u062a\u0643\u064a\u0641. \u064a\u062a\u0645 \u062a\u0637\u0648\u064a\u0631 \u062a\u0642\u0646\u064a\u0627\u062a \u0627\u0644\u062a\u0639\u0644\u0645 \u0627\u0644\u0622\u0644\u064a \u0648\u0627\u0644\u0630\u0643\u0627\u0621 \u0627\u0644\u0627\u0635\u0637\u0646\u0627\u0639\u064a \u0644\u0625\u062f\u0627\u0631\u0629 \u0627\u0644\u0641\u0647\u0627\u0631\u0633 \u0648\u062a\u062d\u0633\u064a\u0646\u0647\u0627 \u062a\u0644\u0642\u0627\u0626\u064a\u064b\u0627 \u0628\u0646\u0627\u0621\u064b \u0639\u0644\u0649 \u0623\u0646\u0645\u0627\u0637 \u0639\u0628\u0621 \u0627\u0644\u0639\u0645\u0644 \u0627\u0644\u0645\u062a\u063a\u064a\u0631\u0629.<\/p>\n<p>\u0623\u064a\u0636\u064b\u0627\u060c \u0645\u0639 \u0638\u0647\u0648\u0631 \u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u063a\u064a\u0631 \u0627\u0644\u0639\u0644\u0627\u0626\u0642\u064a\u0629 (NoSQL)\u060c \u064a\u062a\u0645 \u062a\u0637\u0648\u064a\u0631 \u0627\u0633\u062a\u0631\u0627\u062a\u064a\u062c\u064a\u0627\u062a \u0648\u0647\u064a\u0627\u0643\u0644 \u0627\u0644\u0641\u0647\u0631\u0633\u0629 \u0627\u0644\u0645\u062e\u062a\u0644\u0641\u0629. \u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c \u0641\u064a \u0642\u0648\u0627\u0639\u062f \u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0631\u0633\u0645 \u0627\u0644\u0628\u064a\u0627\u0646\u064a\u060c \u064a\u0639\u0646\u064a \u0627\u0644\u062a\u0642\u0627\u0631\u0628 \u0627\u0644\u062e\u0627\u0644\u064a \u0645\u0646 \u0627\u0644\u0641\u0647\u0631\u0633 \u0623\u0646 \u0643\u0644 \u0639\u0646\u0635\u0631 \u064a\u062d\u062a\u0648\u064a \u0639\u0644\u0649 \u0645\u0624\u0634\u0631 \u0645\u0628\u0627\u0634\u0631 \u0625\u0644\u0649 \u0627\u0644\u0639\u0646\u0635\u0631 \u0627\u0644\u0645\u062c\u0627\u0648\u0631 \u0644\u0647.<\/p>\n<h2>\u0641\u0647\u0631\u0633 \u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0648\u0627\u0644\u062e\u0648\u0627\u062f\u0645 \u0627\u0644\u0648\u0643\u064a\u0644\u0629<\/h2>\n<p>\u0639\u0644\u0649 \u0627\u0644\u0631\u063a\u0645 \u0645\u0646 \u0623\u0646 \u0627\u0644\u062e\u0648\u0627\u062f\u0645 \u0627\u0644\u0648\u0643\u064a\u0644\u0629 \u0644\u0627 \u062a\u062a\u0641\u0627\u0639\u0644 \u0628\u0634\u0643\u0644 \u0645\u0628\u0627\u0634\u0631 \u0645\u0639 \u0641\u0647\u0627\u0631\u0633 \u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a\u060c \u0625\u0644\u0627 \u0623\u0646\u0647\u0627 \u062a\u0644\u0639\u0628 \u062f\u0648\u0631\u064b\u0627 \u0645\u0647\u0645\u064b\u0627 \u0641\u064a \u0645\u0648\u0627\u0632\u0646\u0629 \u0627\u0644\u062a\u062d\u0645\u064a\u0644 \u0648\u0627\u0644\u062a\u062e\u0632\u064a\u0646 \u0627\u0644\u0645\u0624\u0642\u062a\u060c \u0645\u0645\u0627 \u064a\u0624\u062b\u0631 \u0628\u0634\u0643\u0644 \u063a\u064a\u0631 \u0645\u0628\u0627\u0634\u0631 \u0639\u0644\u0649 \u0623\u062f\u0627\u0621 \u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a.<\/p>\n<p>\u0639\u0646\u062f \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u062e\u0627\u062f\u0645 \u0648\u0643\u064a\u0644\u060c \u064a\u0645\u0643\u0646\u0647 \u062a\u062e\u0632\u064a\u0646 \u0627\u0644\u0627\u0633\u062a\u062c\u0627\u0628\u0627\u062a \u0645\u0624\u0642\u062a\u064b\u0627 \u0645\u0646 \u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a. \u0625\u0630\u0627 \u062a\u0645 \u062a\u0642\u062f\u064a\u0645 \u0646\u0641\u0633 \u0627\u0644\u0637\u0644\u0628 \u0645\u0631\u0629 \u0623\u062e\u0631\u0649\u060c \u0641\u064a\u0645\u0643\u0646 \u0644\u0644\u0648\u0643\u064a\u0644 \u0625\u0631\u062c\u0627\u0639 \u0627\u0644\u0627\u0633\u062a\u062c\u0627\u0628\u0629 \u0627\u0644\u0645\u062e\u0632\u0646\u0629 \u0645\u0624\u0642\u062a\u064b\u0627\u060c \u0645\u0645\u0627 \u064a\u0642\u0644\u0644 \u0627\u0644\u062d\u0645\u0644 \u0639\u0644\u0649 \u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a. \u0648\u064a\u0633\u0627\u0639\u062f \u0647\u0630\u0627 \u0628\u0634\u0643\u0644 \u063a\u064a\u0631 \u0645\u0628\u0627\u0634\u0631 \u0641\u064a \u062a\u062d\u0633\u064a\u0646 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0645\u0648\u0627\u0631\u062f \u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a\u060c \u0628\u0645\u0627 \u0641\u064a \u0630\u0644\u0643 \u0627\u0644\u0641\u0647\u0627\u0631\u0633.<\/p>\n<p>\u0639\u0644\u0627\u0648\u0629 \u0639\u0644\u0649 \u0630\u0644\u0643\u060c \u0641\u064a \u0628\u064a\u0626\u0629 \u0646\u0638\u0627\u0645 \u0625\u062f\u0627\u0631\u0629 \u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a (DBMS) \u062d\u064a\u062b \u062a\u062a\u0645 \u0625\u062f\u0627\u0631\u0629 \u062e\u0648\u0627\u062f\u0645 \u0642\u0648\u0627\u0639\u062f \u0628\u064a\u0627\u0646\u0627\u062a \u0645\u062a\u0639\u062f\u062f\u0629\u060c \u064a\u0645\u0643\u0646 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u062e\u0648\u0627\u062f\u0645 \u0627\u0644\u0648\u0643\u064a\u0644\u0629 \u0644\u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u062d\u0645\u0644\u060c \u0645\u0645\u0627 \u064a\u0636\u0645\u0646 \u0627\u0644\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0641\u0639\u0627\u0644 \u0644\u062c\u0645\u064a\u0639 \u0627\u0644\u0645\u0648\u0627\u0631\u062f.<\/p>\n<h2>\u0631\u0648\u0627\u0628\u0637 \u0630\u0627\u062a \u0639\u0644\u0627\u0642\u0629<\/h2>\n<ul>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Database_index\" target=\"_new\" rel=\"noopener nofollow\">\u0634\u0631\u062d \u0641\u0647\u0631\u0633\u0629 \u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a<\/a><\/li>\n<li><a href=\"https:\/\/www.geeksforgeeks.org\/indexing-in-databases-set-1\/\" target=\"_new\" rel=\"noopener nofollow\">\u0641\u0647\u0645 \u0627\u0644\u0641\u0647\u0627\u0631\u0633 \u0641\u064a \u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a<\/a><\/li>\n<li><a href=\"https:\/\/docs.microsoft.com\/en-us\/sql\/relational-databases\/sql-server-index-design-guide?view=sql-server-ver15\" target=\"_new\" rel=\"noopener nofollow\">\u062f\u0644\u064a\u0644 \u062a\u0635\u0645\u064a\u0645 \u0648\u0647\u0646\u062f\u0633\u0629 \u0641\u0647\u0631\u0633 SQL Server<\/a><\/li>\n<li><a href=\"https:\/\/dl.acm.org\/doi\/10.5555\/58015\" target=\"_new\" rel=\"noopener nofollow\">\u0627\u0644\u0641\u0647\u0631\u0633\u0629 \u0648\u0627\u0644\u0628\u062d\u062b \u0641\u064a \u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a<\/a><\/li>\n<\/ul>","protected":false},"featured_media":468164,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476734","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Database Index: A Comprehensive Guide<\/mark>","faq_items":[{"question":"What is a database index?","answer":"<p>A database index is a data structure that enhances the speed of data retrieval operations on a database table. It works by storing a subset of the database's data and maintaining a pointer to the location of each piece of data. The index sorts its data based on the indexed columns' values, allowing efficient retrieval.<\/p>"},{"question":"What is the history of database indexes?","answer":"<p>The concept of database indexing emerged along with the development of database management systems. As early as the 1960s, the need for efficient data retrieval methods became apparent. However, it was in the context of the relational database model, proposed by Edgar F. Codd in 1970, that database indexes found their widespread use.<\/p>"},{"question":"How does a database index work?","answer":"<p>A database index works by storing a subset of the database's data and maintaining a pointer to the location of each piece of data. The index sorts its data based on the indexed columns' values, allowing efficient retrieval. When a query is executed, the database engine first scans the index to find the location of the data instead of scanning the entire database table, speeding up data retrieval.<\/p>"},{"question":"What are the key features of a database index?","answer":"<p>Some of the key features of a database index include performance improvement, their structured nature, storage methods, trade-offs (they speed up read operations but slow down write operations), and the two types of indexes: clustered and non-clustered.<\/p>"},{"question":"What are the types of database indexes?","answer":"<p>There are primarily two types of indexes: clustered and non-clustered. A clustered index determines the physical order of data in a table, while a non-clustered index uses a pointer to locate data. Other types of indexes include unique, composite, bitmap, full-text, and spatial indexes.<\/p>"},{"question":"What are the ways to use a database index and what problems may occur?","answer":"<p>The use of indexes significantly speeds up data retrieval operations but requires careful management. Over-indexing can lead to slower write operations and wasted storage space. Under-indexing, on the other hand, can result in slower read operations. It is crucial to monitor the performance of your database and regularly update your indexing strategy.<\/p>"},{"question":"How are database indexes and proxy servers related?","answer":"<p>While proxy servers do not directly interact with database indexes, they do play a significant role in balancing loads and caching, which indirectly impacts the performance of databases. A proxy server can cache responses from a database, reducing the load on the database and helping in better utilizing the database resources, including indexes.<\/p>"},{"question":"What is the future of database indexing?","answer":"<p>The future of database indexing lies in more automated and adaptive systems. Machine learning and AI techniques are being developed to automatically manage and optimize indexes based on changing workload patterns. Also, with the rise of non-relational databases (NoSQL), different indexing strategies and structures are being developed.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/ar\/wp-json\/wp\/v2\/wiki\/476734","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/ar\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/ar\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/ar\/wp-json\/wp\/v2\/wiki\/476734\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/ar\/wp-json\/wp\/v2\/media\/468164"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/ar\/wp-json\/wp\/v2\/media?parent=476734"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}