{"id":6761,"date":"2021-06-30T09:21:48","date_gmt":"2021-06-30T01:21:48","guid":{"rendered":"https:\/\/www.gbase8.cn\/?p=6761"},"modified":"2021-06-30T13:13:37","modified_gmt":"2021-06-30T05:13:37","slug":"gbase-8a%e7%9a%84grouping%e5%87%bd%e6%95%b0%e4%bd%bf%e7%94%a8%e8%af%b4%e6%98%8e%e5%92%8c%e7%94%a8%e4%be%8b","status":"publish","type":"post","link":"https:\/\/www.gbase8.cn\/en\/6761","title":{"rendered":"\u5357\u5927\u901a\u7528GBase 8a\u7684grouping\u51fd\u6570\u4f7f\u7528\u8bf4\u660e\u548c\u7528\u4f8b"},"content":{"rendered":"<p>\u672c\u6587\u4ecb\u7ecdGBase 8a\u6570\u636e\u5e93\u96c6\u7fa4\u5185\u7f6e\u7684grouping\u51fd\u6570\u4f7f\u7528\uff0c\u5176\u548cgroup by rollup\/cube\/grouping sets\u4e00\u8d77\u4f7f\u7528\u65f6\u624d\u6709\u6548\u679c\u3002<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Directory Navigation<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a2aa3c126fc8\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a2aa3c126fc8\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.gbase8.cn\/en\/6761\/#%E5%8F%82%E8%80%83\" >\u53c2\u8003<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.gbase8.cn\/en\/6761\/#%E8%AF%AD%E6%B3%95\" >\u8bed\u6cd5<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.gbase8.cn\/en\/6761\/#%E8%AF%B4%E6%98%8E\" >\u8bf4\u660e<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.gbase8.cn\/en\/6761\/#%E6%A0%B7%E4%BE%8B\" >\u6837\u4f8b<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.gbase8.cn\/en\/6761\/#%E6%95%B0%E6%8D%AE\" >\u6570\u636e<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.gbase8.cn\/en\/6761\/#Grouping_%E5%9C%A8%E6%99%AE%E9%80%9AGroup_by%E7%9A%84%E4%BE%8B%E5%AD%90\" >Grouping \u5728\u666e\u901aGroup by\u7684\u4f8b\u5b50<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.gbase8.cn\/en\/6761\/#Grouping_%E5%9C%A8group_by_rollup%E7%9A%84%E4%BE%8B%E5%AD%90\" >Grouping \u5728group by rollup\u7684\u4f8b\u5b50<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.gbase8.cn\/en\/6761\/#%E5%A4%9A%E5%88%97grouping%E7%9A%84%E4%BE%8B%E5%AD%90\" >\u591a\u5217grouping\u7684\u4f8b\u5b50<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.gbase8.cn\/en\/6761\/#Grouping_%E5%9C%A8group_by_cube%E7%9A%84%E4%BE%8B%E5%AD%90\" >Grouping \u5728group by cube\u7684\u4f8b\u5b50<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.gbase8.cn\/en\/6761\/#Grouping_%E5%9C%A8group_by_grouping_sets%E7%9A%84%E4%BE%8B%E5%AD%90\" >Grouping \u5728group by grouping sets\u7684\u4f8b\u5b50<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%8F%82%E8%80%83\"><\/span>\u53c2\u8003<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><a href=\"https:\/\/www.gbase8.cn\/en\/2620\/\">GBase 8a OLAP\u51fd\u6570group by grouping sets\u7684\u4f7f\u7528\u6837\u4f8b<\/a><br><a href=\"https:\/\/www.gbase8.cn\/en\/6639\/\">GBase 8a\u7a97\u53e3\u51fd\u6570\u4f7f\u7528\u6837\u4f8b\u7d22\u5f15<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E8%AF%AD%E6%B3%95\"><\/span>\u8bed\u6cd5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>GROUPING (expr)<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E8%AF%B4%E6%98%8E\"><\/span>\u8bf4\u660e<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>expr  \u53c2\u4e0egroup by rollup\/cube\/grouping sets\u7684\u5217\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>GROUPING \u8868\u793a GROUP BY \u5217\u8868\u4e2d\u7684\u8868\u8fbe\u5f0f\u662f\u5426\u53c2\u4e0e\u5206\u7ec4\u3002<ul><li>\u8fd4\u56de1 \u8868\u793a\u4e0d\u53c2\u4e0e\u5206\u7ec4<\/li><li>\u8fd4\u56de 0 \u8868\u793a\u53c2\u4e0e\u5206\u7ec4 \u3002<\/li><\/ul><\/li><li>\u5bf9\u666e\u901a GROUP BY \u8868\u8fbe\u5f0f \uff0cGROUPING \u8fd4\u56de 0\u3002<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%A0%B7%E4%BE%8B\"><\/span>\u6837\u4f8b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%95%B0%E6%8D%AE\"><\/span>\u6570\u636e<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>gbase&gt; select * from t2;\n+------+------+------+\n| id   | type | val  |\n+------+------+------+\n|    1 |    1 |  111 |\n|    2 |    1 |  122 |\n|    3 |    1 |  133 |\n|    4 |    2 |  222 |\n|    5 |    2 |  233 |\n|    6 |    2 |  244 |\n|    7 |    3 |  333 |\n+------+------+------+\n7 rows in set (Elapsed: 00:00:00.01)\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Grouping_%E5%9C%A8%E6%99%AE%E9%80%9AGroup_by%E7%9A%84%E4%BE%8B%E5%AD%90\"><\/span>Grouping \u5728\u666e\u901aGroup by\u7684\u4f8b\u5b50<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u8fd4\u56de0\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>gbase&gt; select type,sum(val),count(*) from t2 group by type;\n+------+----------+----------+\n| type | sum(val) | count(*) |\n+------+----------+----------+\n|    2 |      699 |        3 |\n|    1 |      366 |        3 |\n|    3 |      333 |        1 |\n+------+----------+----------+\n3 rows in set (Elapsed: 00:00:00.05)\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Grouping_%E5%9C%A8group_by_rollup%E7%9A%84%E4%BE%8B%E5%AD%90\"><\/span>Grouping \u5728group by rollup\u7684\u4f8b\u5b50<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u6700\u540e\u7684\u6c47\u603b\uff0ctype\u4e3a\u5168\u90e8\uff0c\u6b64\u65f6\u5176\u5e76\u4e0d\u53c2\u4e0egroup,\u6240\u4ee5grouping\u8fd4\u56de1\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>gbase&gt; select type,sum(val),count(*),grouping(type) from t2 group by rollup(type);\n+------+----------+----------+----------------+\n| type | sum(val) | count(*) | grouping(type) |\n+------+----------+----------+----------------+\n|    1 |      366 |        3 |              0 |\n|    2 |      699 |        3 |              0 |\n|    3 |      333 |        1 |              0 |\n| NULL |     1398 |        7 |              1 |\n+------+----------+----------+----------------+\n4 rows in set (Elapsed: 00:00:00.03)\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%A4%9A%E5%88%97grouping%E7%9A%84%E4%BE%8B%E5%AD%90\"><\/span>\u591a\u5217grouping\u7684\u4f8b\u5b50<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u591a\u5217\u65f6\uff0c\u5f53\u524d\u5206\u7ec4\u7ea7\u522b\u4e0d\u53c2\u4e0e\u7684\u5217\uff0c\u8fd4\u56de1\uff0c \u53c2\u4e0e\u7684\u8fd4\u56de0\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>gbase&gt; select type,(id%3) id,sum(val),count(*),grouping(type),grouping(id%3) from t2 group by rollup(type,id%3);\n+------+------+----------+----------+----------------+----------------+\n| type | id   | sum(val) | count(*) | grouping(type) | grouping(id%3) |\n+------+------+----------+----------+----------------+----------------+\n|    1 |    1 |      111 |        1 |              0 |              0 |\n|    1 |    2 |      122 |        1 |              0 |              0 |\n|    1 |    0 |      133 |        1 |              0 |              0 |\n|    2 |    1 |      222 |        1 |              0 |              0 |\n|    2 |    2 |      233 |        1 |              0 |              0 |\n|    2 |    0 |      244 |        1 |              0 |              0 |\n|    3 |    1 |      333 |        1 |              0 |              0 |\n|    1 | NULL |      366 |        3 |              0 |              1 |\n|    2 | NULL |      699 |        3 |              0 |              1 |\n|    3 | NULL |      333 |        1 |              0 |              1 |\n| NULL | NULL |     1398 |        7 |              1 |              1 |\n+------+------+----------+----------+----------------+----------------+\n11 rows in set (Elapsed: 00:00:00.03)\n\ngbase&gt;\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Grouping_%E5%9C%A8group_by_cube%E7%9A%84%E4%BE%8B%E5%AD%90\"><\/span>Grouping \u5728group by cube\u7684\u4f8b\u5b50<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>gbase&gt; select type,(id%3) id,sum(val),count(*),grouping(type),grouping(id%3) from t2 group by cube(type,id%3);\n+------+------+----------+----------+----------------+----------------+\n| type | id   | sum(val) | count(*) | grouping(type) | grouping(id%3) |\n+------+------+----------+----------+----------------+----------------+\n|    1 |    1 |      111 |        1 |              0 |              0 |\n|    1 |    2 |      122 |        1 |              0 |              0 |\n|    1 |    0 |      133 |        1 |              0 |              0 |\n|    2 |    1 |      222 |        1 |              0 |              0 |\n|    2 |    2 |      233 |        1 |              0 |              0 |\n|    2 |    0 |      244 |        1 |              0 |              0 |\n|    3 |    1 |      333 |        1 |              0 |              0 |\n| NULL |    1 |      666 |        3 |              1 |              0 |\n| NULL |    2 |      355 |        2 |              1 |              0 |\n| NULL |    0 |      377 |        2 |              1 |              0 |\n|    1 | NULL |      366 |        3 |              0 |              1 |\n|    2 | NULL |      699 |        3 |              0 |              1 |\n|    3 | NULL |      333 |        1 |              0 |              1 |\n| NULL | NULL |     1398 |        7 |              1 |              1 |\n+------+------+----------+----------+----------------+----------------+\n14 rows in set (Elapsed: 00:00:00.04)\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Grouping_%E5%9C%A8group_by_grouping_sets%E7%9A%84%E4%BE%8B%E5%AD%90\"><\/span>Grouping \u5728group by grouping sets\u7684\u4f8b\u5b50<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u8bf7\u533a\u5206\u4e8c\u8005\u7684\u533a\u522b\uff0c\u7b2c\u4e00\u4e2agrouping\u51fd\u6570\uff0c\u7b2c\u4e8c\u4e2a\u662f\u548csets\u4e00\u8d77\u4f7f\u7528\u7684\u3002 <a href=\"https:\/\/www.gbase8.cn\/en\/2620\/\">GBase 8a OLAP\u51fd\u6570group by grouping sets\u7684\u4f7f\u7528\u6837\u4f8b<\/a><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>gbase&gt; select type,(id%3) id,sum(val),count(*),grouping(type),grouping(id%3) from t2 group by grouping sets(type,id%3);\n+------+------+----------+----------+----------------+----------------+\n| type | id   | sum(val) | count(*) | grouping(type) | grouping(id%3) |\n+------+------+----------+----------+----------------+----------------+\n| NULL |    1 |      666 |        3 |              1 |              0 |\n| NULL |    2 |      355 |        2 |              1 |              0 |\n| NULL |    0 |      377 |        2 |              1 |              0 |\n|    1 | NULL |      366 |        3 |              0 |              1 |\n|    2 | NULL |      699 |        3 |              0 |              1 |\n|    3 | NULL |      333 |        1 |              0 |              1 |\n+------+------+----------+----------+----------------+----------------+\n6 rows in set (Elapsed: 00:00:00.03)\n<\/code><\/pre>","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u4ecb\u7ecdGBase 8a\u6570\u636e\u5e93\u96c6\u7fa4\u5185\u7f6e\u7684grouping\u51fd\u6570\u4f7f\u7528\uff0c\u5176\u548cgroup by rollup\/cube\/grouping sets\u4e00\u8d77\u4f7f\u7528\u65f6\u624d\u6709\u6548\u679c\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-6761","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\/6761","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=6761"}],"version-history":[{"count":9,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/6761\/revisions"}],"predecessor-version":[{"id":6806,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/6761\/revisions\/6806"}],"wp:attachment":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/media?parent=6761"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/categories?post=6761"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/tags?post=6761"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}