<\/span><\/h2>\n\n\n\n\u5982\u4e0b\u6570\u636e\u4e00\u51715\u884c\uff0c\u5176\u4e2d90\u7684\u67092\u884c\u3002 \u5171\u5206\u6210\u4e862\u7ec4\u3002<\/p>\n\n\n\n
gbase> select * from test_rank order by sales desc;\n+------+------+-------+------+\n| id | name | sales | type |\n+------+------+-------+------+\n| 1 | 111 | 100 | 1 |\n| 5 | 555 | 95 | 2 |\n| 4 | 444 | 90 | 2 |\n| 2 | 222 | 90 | 2 |\n| 3 | 333 | 85 | 2 |\n+------+------+-------+------+\n5 rows in set (Elapsed: 00:00:00.03)\n\ngbase> select * from test_rank order by type,sales desc;\n+------+------+-------+------+\n| id | name | sales | type |\n+------+------+-------+------+\n| 1 | 111 | 100 | 1 |\n| 5 | 555 | 95 | 2 |\n| 4 | 444 | 90 | 2 |\n| 2 | 222 | 90 | 2 |\n| 3 | 333 | 85 | 2 |\n+------+------+-------+------+\n5 rows in set (Elapsed: 00:00:00.02)\n\n<\/code><\/pre>\n\n\n\n<\/span>Rank<\/span><\/h2>\n\n\n\n<\/span>Rank\u8bed\u6cd5<\/span><\/h3>\n\n\n\nRANK() OVER([PARTITION BY col_name1,col_name2,\u2026] ORDER BY col_name1 [ASC\/DESC], col_name2 [ASC\/DESC],\u2026)\n<\/code><\/pre>\n\n\n\n<\/span>Rank\u8bf4\u660e<\/span><\/h3>\n\n\n\nPartition by \u90e8\u5206\u662f\u53ef\u9009\u7684\uff0c\u5982\u679c\u4e0d\u5199\uff0c\u5219\u6240\u6709\u6570\u636e\u5f53\u6210\u4e00\u4e2a\u7a97\u53e3\u64cd\u4f5c\u3002
Order by \u662f\u4e00\u4e2a\u7a97\u53e3\u5185\u7684\u6392\u5e8f\u5217\uff0c\u9760\u524d\u7684\u7f16\u53f7\u5c0f\uff0c\u4ece1\u5f00\u59cb\u3002<\/p>\n\n\n\n
<\/span>\u65e0Partition\u7684Rank\u6837\u4f8b<\/span><\/h3>\n\n\n\n\u53ef\u4ee5\u770b\u523090\u5206\u7684222\u548c444\uff0c\u5176\u987a\u5e8f\u53f7\u90fd\u662f3\uff0c\u800c\u540e\u9762\u7684333\u5219\u8df3\u5230\u4e865\u3002\u4e2d\u95f4\u76844\u56e0\u4e3a\u91cd\u590d\u503c\u800c\u8df3\u8fc7\u4e86\u3002<\/p>\n\n\n\n
gbase> select id,name,sales,rank() over(order by sales desc) rk from test_rank order by rk;\n+------+------+-------+----+\n| id | name | sales | rk |\n+------+------+-------+----+\n| 1 | 111 | 100 | 1 |\n| 5 | 555 | 95 | 2 |\n| 2 | 222 | 90 | 3 |\n| 4 | 444 | 90 | 3 |<\/span>\n| 3 | 333 | 85 | 5 |<\/span>\n+------+------+-------+----+\n5 rows in set (Elapsed: 00:00:00.04)\n<\/code><\/pre>\n\n\n\n<\/span>\u6709Partition\u7684 Rank\u6837\u4f8b<\/span><\/h3>\n\n\n\n\u5176\u4e2dtype=2\u7684\u5206\u7c7b\u91cc\uff0c222\u548c444\u7684\u987a\u5e8f\u53f7\u4e3a2\uff0c\u540e\u9762333\u7684\u987a\u5e8f\u53f74\uff0c\u8df3\u8fc7\u4e86\u987a\u5e8f\u53f73\u3002<\/p>\n\n\n\n
gbase> select type,id,name,sales,rank() over(partition by type order by sales desc) rk from test_rank order by type,rk;\n+------+------+------+-------+----+\n| type | id | name | sales | rk |\n+------+------+------+-------+----+\n| 1 | 1 | 111 | 100 | 1 |\n| 2 | 5 | 555 | 95 | 1 |\n| 2 | 2 | 222 | 90 | 2 |\n| 2 | 4 | 444 | 90 | 2 |\n| 2 | 3 | 333 | 85 | 4 |<\/span>\n+------+------+------+-------+----+\n5 rows in set (Elapsed: 00:00:00.06)\n<\/code><\/pre>\n\n\n\n<\/span>Dense_rank<\/span><\/h2>\n\n\n\n\u4e0eRank\u7684\u533a\u522b\u5c31\u662f\u5728\u4e00\u4e2a\u7a97\u53e3\u5185\uff0c\u91cd\u590d\u503c\u7684\u53f7\u4e0d\u4f1a\u88ab\u8df3\u8fc7\uff0c\u662f\u8fde\u7eed\u7684\u3002<\/p>\n\n\n\n
<\/span>Dense_rank\u8bed\u6cd5<\/span><\/h3>\n\n\n\nDENSE_RANK( ) over([PARTITION BY col_name1,col_name2,\u2026] ORDER BY col_name1 [ASC\/DESC], col_name2 [ASC\/DESC],\u2026)<\/code><\/pre>\n\n\n\n<\/span>Dense_rank\u8bf4\u660e<\/span><\/h3>\n\n\n\nPartition by \u90e8\u5206\u662f\u53ef\u9009\u7684\uff0c\u5982\u679c\u4e0d\u5199\uff0c\u5219\u6240\u6709\u6570\u636e\u5f53\u6210\u4e00\u4e2a\u7a97\u53e3\u64cd\u4f5c\u3002
Order by \u662f\u4e00\u4e2a\u7a97\u53e3\u5185\u7684\u6392\u5e8f\u5217\uff0c\u9760\u524d\u7684\u7f16\u53f7\u5c0f\uff0c\u4ece1\u5f00\u59cb\u3002<\/p>\n\n\n\n
<\/span>\u65e0Partition\u7684Dense_rank\u6837\u4f8b<\/span><\/h3>\n\n\n\n\u53ef\u4ee5\u770b\u523090\u5206\u7684222\u548c444\u90fd\u662f\u9700\u89813\uff0c \u540e\u9762\u7684333\u5e8f\u53f7\u662f4\uff0c \u800c\u5728Rank\u91cc\u5e8f\u53f7\u662f5\uff0c\u662f\u8fde\u7eed\u7684\u3002<\/p>\n\n\n\n
gbase> select id,name,sales,dense_rank() over(order by sales desc) rk from test_rank order by rk;\n+------+------+-------+----+\n| id | name | sales | rk |\n+------+------+-------+----+\n| 1 | 111 | 100 | 1 |\n| 5 | 555 | 95 | 2 |\n| 2 | 222 | 90 | 3 |\n| 4 | 444 | 90 | 3 |\n| 3 | 333 | 85 | 4 |<\/span>\n+------+------+-------+----+\n5 rows in set (Elapsed: 00:00:00.04)\n<\/code><\/pre>\n\n\n\n<\/span>\u65e0Partition\u7684Dense_rank\u6837\u4f8b<\/span><\/h3>\n\n\n\n\u5176\u4e2dtype=2\u7684\u5206\u7c7b\u91cc\uff0c222\u548c444\u7684\u987a\u5e8f\u53f7\u4e3a2\uff0c\u540e\u9762333\u7684\u987a\u5e8f\u53f73\uff0c\u662f\u8fde\u7eed\u7684\u3002<\/p>\n\n\n\n
gbase> select type,id,name,sales,dense_rank() over(partition by type order by sales desc) rk from test_rank order by type,rk;\n+------+------+------+-------+----+\n| type | id | name | sales | rk |\n+------+------+------+-------+----+\n| 1 | 1 | 111 | 100 | 1 |\n| 2 | 5 | 555 | 95 | 1 |\n| 2 | 2 | 222 | 90 | 2 |\n| 2 | 4 | 444 | 90 | 2 |<\/span>\n| 2 | 3 | 333 | 85 | 3 |<\/span>\n+------+------+------+-------+----+\n5 rows in set (Elapsed: 00:00:00.06)\n<\/code><\/pre>","protected":false},"excerpt":{"rendered":"\u672c\u6587\u4ecb\u7ecdGBase 8a \u6570\u636e\u5e93\u652f\u6301\u7684\u7a97\u53e3\u51fd\u6570Rank\u548cDense_rank\u7684\u8bed\u6cd5\u548c\u4f7f\u7528\u6837\u4f8b\u3002\u8fd92\u4e2a\u51fd\u6570\u90fd\u662f\u6839\u636e ORDER BY \u5b50\u53e5\u4e2d\u8868\u8fbe\u5f0f\u7684\u503c\uff0c\u4ece\u67e5\u8be2\u8fd4\u56de\u7684\u6bcf\u4e00\u884c\u8ba1\u7b97\u5b83\u4eec\u4e0e\u5176\u5b83\u884c\u7684\u76f8\u5bf9\u4f4d\u7f6e\u3002\u7ec4\u5185\u7684\u6570\u636e\u6309 ORDER BY \u5b50\u53e5\u6392\u5e8f\uff0c\u7136\u540e\u7ed9\u6bcf\u4e00\u884c\u8d4b\u4e00\u4e2a\u53f7\uff0c\u4ece\u800c\u5f62\u6210\u4e00\u4e2a\u5e8f\u5217\uff0c\u8be5\u5e8f\u5217\u4ece 1 \u5f00\u59cb\uff0c\u5f80\u540e\u7d2f\u52a0\u3002\u533a\u522b\u662fRank\u5728\u6570\u503c\u91cd\u590d\u65f6\uff0c\u6392\u5e8f\u53f7\u91cd\u590d\uff0c\u540e\u9762\u7684\u53f7\u8df3\u8fc7\u91cd\u590d\u7684\u53f7\uff0c\u800cDense\u5219\u4f1a\u7ed9\u8fde\u7eed\u7684\u503c\uff0c\u4e0d\u8df3\u8fc7\u91cd\u590d\u7684\u53f7\u3002<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[36,77],"class_list":["post-5955","post","type-post","status-publish","format-standard","hentry","category-gbase8a","tag-36","tag-olap"],"_links":{"self":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/5955","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/comments?post=5955"}],"version-history":[{"count":12,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/5955\/revisions"}],"predecessor-version":[{"id":6733,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/5955\/revisions\/6733"}],"wp:attachment":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/media?parent=5955"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/categories?post=5955"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/tags?post=5955"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}