{"id":160273,"date":"2024-11-03T21:43:20","date_gmt":"2024-11-03T13:43:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/160273\/"},"modified":"2024-11-03T21:43:21","modified_gmt":"2024-11-03T13:43:21","slug":"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-to_char-character","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/160273\/","title":{"rendered":"OceanBase \u6559\u7a0b\uff1aOceanBase TO_CHAR (character)"},"content":{"rendered":"<h1 id=\"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-to_char-character-wTVsXMuEqe\">OceanBase \u6559\u7a0b\uff1aOceanBase TO_CHAR (character)<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cOceanBase \u4f5c\u70ba\u4e00\u500b\u9ad8\u6027\u80fd\u7684\u5206\u4f48\u5f0f\u6578\u64da\u5eab\uff0c\u8d8a\u4f86\u8d8a\u53d7\u5230\u958b\u767c\u8005\u7684\u9752\u775e\u3002\u5b83\u4e0d\u50c5\u652f\u6301\u9ad8\u4e26\u767c\u7684\u4e8b\u52d9\u8655\u7406\uff0c\u9084\u5177\u5099\u826f\u597d\u7684\u64f4\u5c55\u6027\u548c\u53ef\u9760\u6027\u3002\u5728\u9019\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u5011\u5c07\u6df1\u5165\u63a2\u8a0e OceanBase \u4e2d\u7684 TO_CHAR \u51fd\u6578\uff0c\u7279\u5225\u662f\u5176\u5728\u5b57\u7b26\u6578\u64da\u8655\u7406\u4e2d\u7684\u61c9\u7528\u3002<\/p>\n<h2 id=\"to_char-%e5%87%bd%e6%95%b8%e6%a6%82%e8%bf%b0-wTVsXMuEqe\">TO_CHAR \u51fd\u6578\u6982\u8ff0<\/h2>\n<p>TO_CHAR \u51fd\u6578\u662f OceanBase \u4e2d\u4e00\u500b\u975e\u5e38\u91cd\u8981\u7684\u51fd\u6578\uff0c\u4e3b\u8981\u7528\u65bc\u5c07\u6578\u64da\u985e\u578b\u8f49\u63db\u70ba\u5b57\u7b26\u578b\u3002\u9019\u500b\u51fd\u6578\u5728\u8655\u7406\u65e5\u671f\u3001\u6578\u5b57\u548c\u5176\u4ed6\u6578\u64da\u985e\u578b\u6642\u7279\u5225\u6709\u7528\uff0c\u56e0\u70ba\u5b83\u80fd\u5920\u5c07\u9019\u4e9b\u6578\u64da\u683c\u5f0f\u5316\u70ba\u53ef\u8b80\u7684\u5b57\u7b26\u4e32\u5f62\u5f0f\u3002<\/p>\n<h2 id=\"to_char-%e5%87%bd%e6%95%b8%e7%9a%84%e8%aa%9e%e6%b3%95-wTVsXMuEqe\">TO_CHAR \u51fd\u6578\u7684\u8a9e\u6cd5<\/h2>\n<pre><code>TO_CHAR(value, format)<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<code>value<\/code> \u662f\u8981\u8f49\u63db\u7684\u6578\u64da\uff0c<code>format<\/code> \u662f\u53ef\u9078\u7684\u683c\u5f0f\u5b57\u7b26\u4e32\uff0c\u7528\u65bc\u6307\u5b9a\u8f38\u51fa\u5b57\u7b26\u4e32\u7684\u683c\u5f0f\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-to_char-%e5%87%bd%e6%95%b8%e7%9a%84%e7%a4%ba%e4%be%8b-wTVsXMuEqe\">\u4f7f\u7528 TO_CHAR \u51fd\u6578\u7684\u793a\u4f8b<\/h2>\n<h3 id=\"1-%e5%b0%87%e6%95%b8%e5%ad%97%e8%bd%89%e6%8f%9b%e7%82%ba%e5%ad%97%e7%ac%a6-wTVsXMuEqe\">1. \u5c07\u6578\u5b57\u8f49\u63db\u70ba\u5b57\u7b26<\/h3>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u6578\u5b57 12345\uff0c\u6211\u5011\u5e0c\u671b\u5c07\u5176\u8f49\u63db\u70ba\u5b57\u7b26\u578b\u4e26\u6dfb\u52a0\u5343\u4f4d\u5206\u9694\u7b26\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT TO_CHAR(12345, 'FM999,999') AS formatted_number;<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u7d50\u679c\uff1a<code>12,345<\/code>\u3002<\/p>\n<h3 id=\"2-%e5%b0%87%e6%97%a5%e6%9c%9f%e8%bd%89%e6%8f%9b%e7%82%ba%e5%ad%97%e7%ac%a6-wTVsXMuEqe\">2. \u5c07\u65e5\u671f\u8f49\u63db\u70ba\u5b57\u7b26<\/h3>\n<p>TO_CHAR \u51fd\u6578\u4e5f\u53ef\u4ee5\u7528\u4f86\u683c\u5f0f\u5316\u65e5\u671f\u3002\u4f8b\u5982\uff0c\u5c07\u7576\u524d\u65e5\u671f\u8f49\u63db\u70ba\u7279\u5b9a\u683c\u5f0f\uff1a<\/p>\n<pre><code>SELECT TO_CHAR(CURRENT_DATE, 'YYYY-MM-DD HH24:MI:SS') AS formatted_date;<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u7576\u524d\u65e5\u671f\u548c\u6642\u9593\uff0c\u683c\u5f0f\u70ba\uff1a<code>2023-10-01 14:30:00<\/code>\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e8%87%aa%e5%ae%9a%e7%be%a9%e6%a0%bc%e5%bc%8f-wTVsXMuEqe\">3. \u4f7f\u7528\u81ea\u5b9a\u7fa9\u683c\u5f0f<\/h3>\n<p>\u4f7f\u7528 TO_CHAR \u51fd\u6578\u6642\uff0c\u6211\u5011\u53ef\u4ee5\u81ea\u5b9a\u7fa9\u683c\u5f0f\u4f86\u6eff\u8db3\u7279\u5b9a\u9700\u6c42\u3002\u4f8b\u5982\uff0c\u5c07\u65e5\u671f\u683c\u5f0f\u5316\u70ba\u201c\u65e5\/\u6708\/\u5e74\u201d\u7684\u5f62\u5f0f\uff1a<\/p>\n<pre><code>SELECT TO_CHAR(CURRENT_DATE, 'DD\/MM\/YYYY') AS custom_formatted_date;<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u985e\u4f3c\u65bc\uff1a<code>01\/10\/2023<\/code> \u7684\u7d50\u679c\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-wTVsXMuEqe\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u5728\u4f7f\u7528 TO_CHAR \u51fd\u6578\u6642\uff0c\u78ba\u4fdd\u63d0\u4f9b\u7684\u683c\u5f0f\u5b57\u7b26\u4e32\u8207\u6578\u64da\u985e\u578b\u76f8\u7b26\uff0c\u5426\u5247\u53ef\u80fd\u6703\u5c0e\u81f4\u932f\u8aa4\u3002<\/li>\n<li>\u5c0d\u65bc\u65e5\u671f\u683c\u5f0f\uff0cOceanBase \u652f\u6301\u591a\u7a2e\u683c\u5f0f\u5316\u9078\u9805\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u683c\u5f0f\u3002<\/li>\n<li>\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\uff0c\u4f7f\u7528 TO_CHAR \u51fd\u6578\u53ef\u80fd\u6703\u5f71\u97ff\u6027\u80fd\uff0c\u56e0\u6b64\u61c9\u8b39\u614e\u4f7f\u7528\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-wTVsXMuEqe\">\u7e3d\u7d50<\/h2>\n<p>TO_CHAR \u51fd\u6578\u5728 OceanBase \u4e2d\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u5c07\u5404\u7a2e\u6578\u64da\u985e\u578b\u8f49\u63db\u70ba\u6613\u65bc\u95b1\u8b80\u7684\u5b57\u7b26\u683c\u5f0f\u3002\u7121\u8ad6\u662f\u6578\u5b57\u9084\u662f\u65e5\u671f\uff0c\u6b63\u78ba\u4f7f\u7528 TO_CHAR \u51fd\u6578\u90fd\u80fd\u63d0\u9ad8\u6578\u64da\u7684\u53ef\u8b80\u6027\u548c\u53ef\u7528\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u670d\u52d9\u53ef\u4ee5\u9032\u4e00\u6b65\u63d0\u5347\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a> \u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Learn how to use the TO_CHAR function in OceanBase to format and convert data types effectively in this comprehensive tutorial.<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-160273","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160273","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=160273"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160273\/revisions"}],"predecessor-version":[{"id":160274,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160273\/revisions\/160274"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=160273"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=160273"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=160273"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}