{"id":1289,"date":"2014-11-18T11:43:20","date_gmt":"2014-11-18T03:43:20","guid":{"rendered":"http:\/\/blog.qdac.cc\/?p=1289"},"modified":"2014-11-19T09:22:42","modified_gmt":"2014-11-19T01:22:42","slug":"postgresql%e5%85%a8%e8%a7%92%e5%92%8c%e5%8d%8a%e8%a7%92%e5%ad%97%e7%ac%a6%e8%bd%ac%e6%8d%a2%e5%87%bd%e6%95%b0","status":"publish","type":"post","link":"https:\/\/blog.qdac.cc\/?p=1289","title":{"rendered":"[PostgreSQL]\u5168\u89d2\u548c\u534a\u89d2\u5b57\u7b26\u8f6c\u6362\u51fd\u6570"},"content":{"rendered":"<p>\u6211\u4eec\u77e5\u9053\uff0c\u5ba2\u6237\u8bb8\u591a\u65f6\u5019\u5f55\u5165\u6570\u636e\u65f6\uff0c\u5e76\u4e0d\u6ce8\u610f\u8f93\u5165\u6cd5\u662f\u5426\u662f\u5168\u89d2\u6a21\u5f0f\uff0c\u7136\u540e\u5c31\u9020\u6210\u8f93\u5165\u7684\u5185\u5bb9\uff0c\u6709\u7684\u662f\u5168\u89d2\u6709\u7684\u662f\u534a\u89d2\uff0c\u9020\u6210\u6211\u4eec\u505a\u5206\u6790\u7edf\u8ba1\u65f6\u7684\u4e0d\u4fbf\uff0c\u4e3a\u6b64\uff0c\u7f16\u5199\u76f8\u5e94\u7684\u51fd\u6570\u3002\u5f53\u7136\u8fd9\u4e2a\u8fc7\u7a0b\u5e94\u5c3d\u91cf\u5728\u524d\u53f0\u5b8c\u6210\uff0c\u4f46\u5982\u679c\u9488\u5bf9\u5df2\u7ecf\u5b58\u5728\u7684\u6570\u636e\uff0c\u4e0b\u9762\u63d0\u4f9b\u7684\u4e24\u4e2a\u51fd\u6570\u5c31\u6bd4\u8f83\u65b9\u4fbf\u4e86\u3002<\/p>\n<p>1\u3001\u5168\u89d2\u8f6c\u6362\u4e3a\u534a\u89d2\u51fd\u6570<\/p>\n<pre class=\"lang:delphi decode:true\">--\u00a9 2014,swish\uff0c\u539f\u7248\u9996\u53d1\uff1ahttps:\/\/blog.qdac.cc\/?p=1281\uff0c\u81ea\u7531\u4f7f\u7528\uff0c\u4fdd\u7559\u7248\u6743\r\ncreate or replace function CnFullToHalf(s character varying)\r\nreturns character varying\r\nas\r\n$$\r\ndeclare\r\n  retval character varying;\r\n  c character varying;\r\n  l integer;\r\nbegin\r\nl=length(s);\r\nretval='';\r\nwhile l&gt;0 loop\r\n  c=left(s,1);\r\n  if c='\u3000' then\r\n    retval=retval||' ';\r\n  elsif c&gt;='\uff01' and c&lt;='\uff5e' then\r\n    retval=retval || chr(ascii('!')+ascii(c)-ascii('\uff01'));\r\n  else\r\n    retval=retval||c;\r\n  end if;\r\n  s=substring(s,2,l-1);\r\n  l=l-1;\r\nend loop;\r\nreturn retval;\r\nend;\r\n$$language plpgsql immutable;\r\n<\/pre>\n<p>2\u3001\u534a\u89d2\u8f6c\u5168\u89d2<\/p>\n<pre class=\"lang:pgsql decode:true  \">--\u00a9 2014,swish\uff0c\u539f\u7248\u9996\u53d1\uff1ahttps:\/\/blog.qdac.cc\/?p=1281\uff0c\u81ea\u7531\u4f7f\u7528\uff0c\u4fdd\u7559\u7248\u6743\r\ncreate or replace function CnHalfToFull(s character varying)\r\nreturns character varying\r\nas\r\n$$\r\ndeclare\r\n  retval character varying;\r\n  c integer;\r\n  l integer;\r\nbegin\r\nl=length(s);\r\nretval='';\r\nwhile l&gt;0 loop\r\n  c=ascii(left(s,1));\r\n  if c=32 then--\u7a7a\u683c\r\n    retval=retval||'\u3000';\r\n  elsif c&gt;=33 and c&lt;=126 then\r\n    retval=retval || chr(ascii('\uff01')+c-ascii('!'));\r\n  else\r\n    retval=retval||chr(c);\r\n  end if;\r\n  s=substring(s,2,l-1);\r\n  l=l-1;\r\nend loop;\r\nreturn retval;\r\nend;\r\n$$language plpgsql immutable;<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u4eec\u77e5\u9053\uff0c\u5ba2\u6237\u8bb8\u591a\u65f6\u5019\u5f55\u5165\u6570\u636e\u65f6\uff0c\u5e76\u4e0d\u6ce8 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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