{"id":10353,"date":"2021-07-28T08:50:39","date_gmt":"2021-07-28T00:50:39","guid":{"rendered":"https:\/\/ailog.tw\/lifelog\/?p=10353"},"modified":"2021-07-28T08:50:39","modified_gmt":"2021-07-28T00:50:39","slug":"oracle-count","status":"publish","type":"post","link":"https:\/\/ailog.tw\/lifelog\/2021\/07\/28\/oracle-count\/","title":{"rendered":"Oracle Database\u67e5\u8a62\u8cc7\u6599\u8868\u7e3d\u7b46\u6578"},"content":{"rendered":"<p><span style=\"font-size: 14pt; font-family: verdana, geneva;\">\u5c0f\u7de8\u4eca\u5929\u8981\u4ecb\u7d39\u7684\u662f\uff0cOracle Database\u5982\u4f55\u67e5\u8a62\u8cc7\u6599\u8868(table)\u4e2d\u7684\u8cc7\u6599\u7e3d\u7b46\u6578\u3002<!--more--><\/span><\/p>\n<p><span style=\"font-size: 14pt; font-family: verdana, geneva;\">\u5728sql developer\u8a9e\u6cd5\uff1a<\/span><br \/>\n<span style=\"font-size: 14pt; font-family: verdana, geneva;\">SELECT COUNT(*) FROM table_name;<\/span><\/p>\n<p><span style=\"font-size: 14pt; font-family: verdana, geneva;\">\u5be6\u969b\u7bc4\u4f8b\uff1a<\/span><br \/>\n<span style=\"font-size: 14pt; font-family: verdana, geneva;\">SELECT COUNT(*) FROM EMP;<\/span><\/p>\n<p><span style=\"font-size: 14pt; font-family: verdana, geneva;\">Oracle\u5b98\u65b9\u8a9e\u6cd5\u8aaa\u660e\uff1a<\/span><br \/>\n<span style=\"font-size: 14pt; font-family: verdana, geneva;\"><a href=\"https:\/\/docs.oracle.com\/database\/121\/SQLRF\/functions046.htm#SQLRF00624\">https:\/\/docs.oracle.com\/database\/121\/SQLRF\/functions046.htm#SQLRF00624<\/a><\/span><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5c0f\u7de8\u4eca\u5929\u8981\u4ecb\u7d39\u7684\u662f\uff0cOracle Database\u5982\u4f55\u67e5\u8a62\u8cc7\u6599\u8868(table)\u4e2d\u7684\u8cc7\u6599\u7e3d\u7b46\u6578\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,387],"tags":[4554,1105,4555,4553],"class_list":["post-10353","post","type-post","status-publish","format-standard","hentry","category-itinfo","category-database","tag-count","tag-oracle","tag-row-counts","tag-4553"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/ailog.tw\/lifelog\/wp-json\/wp\/v2\/posts\/10353","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ailog.tw\/lifelog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ailog.tw\/lifelog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ailog.tw\/lifelog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ailog.tw\/lifelog\/wp-json\/wp\/v2\/comments?post=10353"}],"version-history":[{"count":1,"href":"https:\/\/ailog.tw\/lifelog\/wp-json\/wp\/v2\/posts\/10353\/revisions"}],"predecessor-version":[{"id":10354,"href":"https:\/\/ailog.tw\/lifelog\/wp-json\/wp\/v2\/posts\/10353\/revisions\/10354"}],"wp:attachment":[{"href":"https:\/\/ailog.tw\/lifelog\/wp-json\/wp\/v2\/media?parent=10353"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ailog.tw\/lifelog\/wp-json\/wp\/v2\/categories?post=10353"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ailog.tw\/lifelog\/wp-json\/wp\/v2\/tags?post=10353"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}