{"id":93806,"date":"2024-10-19T17:04:19","date_gmt":"2024-10-19T09:04:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/93806\/"},"modified":"2024-10-19T17:04:20","modified_gmt":"2024-10-19T09:04:20","slug":"oracle-11g-%e8%aa%bf%e7%94%a8%e5%87%bd%e6%95%b8%e7%9a%84%e4%ba%94%e7%a8%ae%e6%96%b9%e6%b3%95%e7%b0%a1%e4%bb%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/93806\/","title":{"rendered":"Oracle 11g \u8abf\u7528\u51fd\u6578\u7684\u4e94\u7a2e\u65b9\u6cd5\u7c21\u4ecb"},"content":{"rendered":"<h1 id=\"oracle-11g-%e8%aa%bf%e7%94%a8%e5%87%bd%e6%95%b8%e7%9a%84%e4%ba%94%e7%a8%ae%e6%96%b9%e6%b3%95%e7%b0%a1%e4%bb%8b-SERikQnRxQ\">Oracle 11g \u8abf\u7528\u51fd\u6578\u7684\u4e94\u7a2e\u65b9\u6cd5\u7c21\u4ecb<\/h1>\n<p>\u5728Oracle 11g\u4e2d\uff0c\u8abf\u7528\u51fd\u6578\u662f\u4e00\u500b\u5e38\u898b\u7684\u9700\u6c42\uff0c\u7121\u8ad6\u662f\u5728\u6578\u64da\u5eab\u958b\u767c\u9084\u662f\u65e5\u5e38\u7684\u6578\u64da\u64cd\u4f5c\u4e2d\u3002\u51fd\u6578\u53ef\u4ee5\u5e6b\u52a9\u6211\u5011\u57f7\u884c\u7279\u5b9a\u7684\u8a08\u7b97\u6216\u64cd\u4f5c\uff0c\u4e26\u8fd4\u56de\u7d50\u679c\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u4e94\u7a2e\u5728Oracle 11g\u4e2d\u8abf\u7528\u51fd\u6578\u7684\u65b9\u6cd5\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u6709\u6548\u5730\u4f7f\u7528\u9019\u4e9b\u529f\u80fd\u3002<\/p>\n<h2 id=\"1-%e4%bd%bf%e7%94%a8select%e8%aa%9e%e5%8f%a5%e8%aa%bf%e7%94%a8%e5%87%bd%e6%95%b8-SERikQnRxQ\">1. \u4f7f\u7528SELECT\u8a9e\u53e5\u8abf\u7528\u51fd\u6578<\/h2>\n<p>\u6700\u5e38\u898b\u7684\u8abf\u7528\u51fd\u6578\u7684\u65b9\u6cd5\u662f\u901a\u904eSQL\u7684SELECT\u8a9e\u53e5\u3002\u9019\u7a2e\u65b9\u6cd5\u53ef\u4ee5\u76f4\u63a5\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u51fd\u6578\uff0c\u4e26\u8fd4\u56de\u8a08\u7b97\u7d50\u679c\u3002<\/p>\n<pre><code>SELECT my_function(column_name) FROM my_table;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c<code>my_function<\/code>\u662f\u7528\u4f86\u8655\u7406<code>column_name<\/code>\u7684\u81ea\u5b9a\u7fa9\u51fd\u6578\uff0c\u4e26\u8fd4\u56de\u7d50\u679c\u3002<\/p>\n<h2 id=\"2-%e5%9c%a8where%e5%ad%90%e5%8f%a5%e4%b8%ad%e8%aa%bf%e7%94%a8%e5%87%bd%e6%95%b8-SERikQnRxQ\">2. \u5728WHERE\u5b50\u53e5\u4e2d\u8abf\u7528\u51fd\u6578<\/h2>\n<p>\u51fd\u6578\u4e5f\u53ef\u4ee5\u5728WHERE\u5b50\u53e5\u4e2d\u4f7f\u7528\uff0c\u4ee5\u904e\u6ffe\u67e5\u8a62\u7d50\u679c\u3002\u9019\u5c0d\u65bc\u9700\u8981\u6839\u64da\u8a08\u7b97\u7d50\u679c\u9032\u884c\u7be9\u9078\u7684\u60c5\u6cc1\u7279\u5225\u6709\u7528\u3002<\/p>\n<pre><code>SELECT * FROM my_table WHERE my_function(column_name) &gt; 100;<\/code><\/pre>\n<p>\u9019\u88e1\uff0c\u53ea\u6709\u7576<code>my_function(column_name)<\/code>\u7684\u8fd4\u56de\u503c\u5927\u65bc100\u6642\uff0c\u8a72\u884c\u624d\u6703\u88ab\u9078\u4e2d\u3002<\/p>\n<h2 id=\"3-%e5%9c%a8order-by%e5%ad%90%e5%8f%a5%e4%b8%ad%e8%aa%bf%e7%94%a8%e5%87%bd%e6%95%b8-SERikQnRxQ\">3. \u5728ORDER BY\u5b50\u53e5\u4e2d\u8abf\u7528\u51fd\u6578<\/h2>\n<p>\u9664\u4e86\u5728SELECT\u548cWHERE\u5b50\u53e5\u4e2d\uff0c\u51fd\u6578\u9084\u53ef\u4ee5\u5728ORDER BY\u5b50\u53e5\u4e2d\u4f7f\u7528\uff0c\u4ee5\u6839\u64da\u8a08\u7b97\u7d50\u679c\u5c0d\u67e5\u8a62\u7d50\u679c\u9032\u884c\u6392\u5e8f\u3002<\/p>\n<pre><code>SELECT * FROM my_table ORDER BY my_function(column_name);<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u6839\u64da\u51fd\u6578\u7684\u8fd4\u56de\u503c\u5c0d\u7d50\u679c\u9032\u884c\u6392\u5e8f\uff0c\u63d0\u4f9b\u66f4\u9748\u6d3b\u7684\u67e5\u8a62\u7d50\u679c\u3002<\/p>\n<h2 id=\"4-%e5%9c%a8pl-sql%e5%a1%8a%e4%b8%ad%e8%aa%bf%e7%94%a8%e5%87%bd%e6%95%b8-SERikQnRxQ\">4. \u5728PL\/SQL\u584a\u4e2d\u8abf\u7528\u51fd\u6578<\/h2>\n<p>\u5728PL\/SQL\u4e2d\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u8b8a\u91cf\u4f86\u5b58\u5132\u51fd\u6578\u7684\u8fd4\u56de\u503c\uff0c\u4e26\u5728\u5f8c\u7e8c\u7684\u64cd\u4f5c\u4e2d\u4f7f\u7528\u9019\u4e9b\u503c\u3002<\/p>\n<pre><code>\nDECLARE\n    result NUMBER;\nBEGIN\n    result := my_function(10);\n    DBMS_OUTPUT.PUT_LINE('The result is: ' || result);\nEND;\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c55\u793a\u4e86\u5982\u4f55\u5728PL\/SQL\u584a\u4e2d\u8abf\u7528\u51fd\u6578\u4e26\u8f38\u51fa\u7d50\u679c\u3002<\/p>\n<h2 id=\"5-%e5%9c%a8%e8%a7%b8%e7%99%bc%e5%99%a8%e4%b8%ad%e8%aa%bf%e7%94%a8%e5%87%bd%e6%95%b8-SERikQnRxQ\">5. \u5728\u89f8\u767c\u5668\u4e2d\u8abf\u7528\u51fd\u6578<\/h2>\n<p>\u51fd\u6578\u9084\u53ef\u4ee5\u5728\u89f8\u767c\u5668\u4e2d\u4f7f\u7528\uff0c\u4ee5\u5728\u7279\u5b9a\u4e8b\u4ef6\u767c\u751f\u6642\u81ea\u52d5\u57f7\u884c\u8a08\u7b97\u6216\u64cd\u4f5c\u3002<\/p>\n<pre><code>\nCREATE OR REPLACE TRIGGER my_trigger\nBEFORE INSERT ON my_table\nFOR EACH ROW\nBEGIN\n    :new.column_name := my_function(:new.column_name);\nEND;\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6bcf\u7576\u5728<code>my_table<\/code>\u4e0a\u63d2\u5165\u65b0\u884c\u6642\uff0c\u89f8\u767c\u5668\u6703\u81ea\u52d5\u8abf\u7528<code>my_function<\/code>\u4f86\u8655\u7406<code>column_name<\/code>\u7684\u503c\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-SERikQnRxQ\">\u7e3d\u7d50<\/h2>\n<p>\u4ee5\u4e0a\u4ecb\u7d39\u4e86\u5728Oracle 11g\u4e2d\u8abf\u7528\u51fd\u6578\u7684\u4e94\u7a2e\u65b9\u6cd5\uff0c\u5305\u62ec\u4f7f\u7528SELECT\u8a9e\u53e5\u3001\u5728WHERE\u548cORDER BY\u5b50\u53e5\u4e2d\u8abf\u7528\u3001\u5728PL\/SQL\u584a\u4e2d\u4f7f\u7528\u4ee5\u53ca\u5728\u89f8\u767c\u5668\u4e2d\u8abf\u7528\u3002\u9019\u4e9b\u65b9\u6cd5\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u9748\u6d3b\u5730\u8655\u7406\u6578\u64da\uff0c\u63d0\u5347\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u6548\u7387\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728Oracle 11g\u4e2d\u9032\u884c\u66f4\u9ad8\u6548\u7684\u6578\u64da\u8655\u7406\u6709\u8208\u8da3\uff0c\u6216\u8005\u9700\u8981\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u4f86\u652f\u6301\u60a8\u7684\u61c9\u7528\uff0c\u8acb\u96a8\u6642\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Oracle 11g\u4e2d\u8abf\u7528\u51fd\u6578\u7684\u4e94\u7a2e\u65b9\u6cd5\uff0c\u63d0\u5347\u6578\u64da\u5eab\u64cd\u4f5c\u6548\u7387\uff0c\u7c21\u5316\u958b\u767c\u6d41\u7a0b\uff0c\u5be6\u73fe\u66f4\u9748\u6d3b\u7684\u6578\u64da\u8655\u7406\u3002<\/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-93806","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/93806","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=93806"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/93806\/revisions"}],"predecessor-version":[{"id":93807,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/93806\/revisions\/93807"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=93806"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=93806"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=93806"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}