{"id":346,"date":"2015-08-14T14:09:17","date_gmt":"2015-08-14T06:09:17","guid":{"rendered":"https:\/\/www.webteach.tw\/?p=346"},"modified":"2015-08-14T14:09:17","modified_gmt":"2015-08-14T06:09:17","slug":"mysql-%e8%a8%88%e7%ae%97%e5%b9%b4%e9%bd%a1","status":"publish","type":"post","link":"https:\/\/www.webteach.tw\/?p=346","title":{"rendered":"[ MYSQL ] &#8211; \u8a08\u7b97\u5e74\u9f61"},"content":{"rendered":"<div style='text-align:center' class='yasr-auto-insert-overall'><\/div><div style='text-align:center' class='yasr-auto-insert-visitor'><\/div><div style=\"margin-top: 0px; margin-bottom: 0px;\" class=\"sharethis-inline-share-buttons\" ><\/div><p>\t\t\t\t<span class=\"syntax_alpha syntax_alpha_reservedWord\">\u8a9e\u6cd5\uff1aSELECT<\/span> <span class=\"syntax_alpha syntax_alpha_functionName\">YEAR<\/span><span class=\"syntax_punct syntax_punct_bracket_open_round\">(<\/span> <span class=\"syntax_alpha syntax_alpha_functionName\">FROM_DAYS<\/span><span class=\"syntax_punct syntax_punct_bracket_open_round\">(<\/span> <span class=\"syntax_alpha syntax_alpha_functionName\">DATEDIFF<\/span><span class=\"syntax_punct syntax_punct_bracket_open_round\">(<\/span> <span class=\"syntax_alpha syntax_alpha_functionName\">NOW<\/span><span class=\"syntax_punct syntax_punct_bracket_open_round\">(<\/span> <span class=\"syntax_punct syntax_punct_bracket_close_round\">)<\/span> <span class=\"syntax_punct syntax_punct_listsep\">,<\/span> <span class=\"syntax_quote syntax_quote_single\">&#8216;1984-11-13&#8217;<\/span> <span class=\"syntax_punct syntax_punct_bracket_close_round\">)<\/span> <span class=\"syntax_punct syntax_punct_bracket_close_round\">)<\/span> <span class=\"syntax_punct syntax_punct_bracket_close_round\">)<\/span> <span class=\"syntax_alpha syntax_alpha_reservedWord\">AS<\/span> <span class=\"syntax_alpha syntax_alpha_identifier\">\u6211\u73fe\u5728\u5e7e\u6b72<\/span><br \/>\n\u7d50\u679c\uff1a30<br \/>\nFROM_DAYS() \u00a0\u628a\u6578\u5b57\u8b8a\u65e5\u671f<br \/>\nDATEDIFF() \u00a0\u662f\u7b97\u5169\u500b\u65e5\u671f\u5dee\u5e7e\u5929<br \/>\nYEAR() \u00a0\u53d6\u65e5\u671f\u7684\u5e74\u4efd\t\t<\/p>\n<div style='text-align:center' class='yasr-auto-insert-overall'><\/div><div style='text-align:center' class='yasr-auto-insert-visitor'><\/div>","protected":false},"excerpt":{"rendered":"<p>\u8a9e\u6cd5\uff1aSELECT YEAR( FROM [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"yasr_overall_rating":0,"yasr_post_is_review":"","yasr_auto_insert_disabled":"","yasr_review_type":"","footnotes":""},"categories":[34],"tags":[101,197,270,622],"class_list":["post-346","post","type-post","status-publish","format-standard","hentry","category-mysql","tag-age","tag-datediff","tag-from_days","tag-year"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>[ MYSQL ] - \u8a08\u7b97\u5e74\u9f61 - \u6df7\u6c34\u6478\u9b5a<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.webteach.tw\/?p=346\" \/>\n<meta property=\"og:locale\" content=\"zh_TW\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[ MYSQL ] - \u8a08\u7b97\u5e74\u9f61 - \u6df7\u6c34\u6478\u9b5a\" \/>\n<meta property=\"og:description\" content=\"\u8a9e\u6cd5\uff1aSELECT YEAR( FROM [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.webteach.tw\/?p=346\" \/>\n<meta property=\"og:site_name\" content=\"\u6df7\u6c34\u6478\u9b5a\" \/>\n<meta property=\"article:published_time\" content=\"2015-08-14T06:09:17+00:00\" \/>\n<meta name=\"author\" content=\"jeff\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005:\" \/>\n\t<meta name=\"twitter:data1\" content=\"jeff\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.webteach.tw\\\/?p=346#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.webteach.tw\\\/?p=346\"},\"author\":{\"name\":\"jeff\",\"@id\":\"https:\\\/\\\/www.webteach.tw\\\/#\\\/schema\\\/person\\\/d434d754fd581338113eecfa923d7520\"},\"headline\":\"[ MYSQL ] &#8211; 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