{"id":92900,"date":"2024-10-19T09:27:17","date_gmt":"2024-10-19T01:27:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/92900\/"},"modified":"2024-10-19T09:27:17","modified_gmt":"2024-10-19T01:27:17","slug":"ora-47220-%e5%9c%a8-ols-%e6%94%bf%e7%ad%96-string-%e4%b8%8b%e8%ba%ab%e4%bb%bd-string-string-%e7%9a%84%e6%a8%99%e7%b1%a4-string-%e5%b7%b2%e5%ae%9a%e7%be%a9-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/92900\/","title":{"rendered":"ORA-47220: \u5728 OLS \u653f\u7b56 string \u4e0b\u8eab\u4efd string.string \u7684\u6a19\u7c64 string \u5df2\u5b9a\u7fa9 ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"ora-47220-%e5%9c%a8-ols-%e6%94%bf%e7%ad%96%e4%b8%8b%e8%ba%ab%e4%bb%bd%e7%9a%84%e6%a8%99%e7%b1%a4%e5%b7%b2%e5%ae%9a%e7%be%a9%e7%9a%84%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9-oDacIegboA\">ORA-47220: \u5728 OLS \u653f\u7b56\u4e0b\u8eab\u4efd\u7684\u6a19\u7c64\u5df2\u5b9a\u7fa9\u7684\u6545\u969c\u4fee\u5fa9<\/h1>\n<p>\u5728\u4f7f\u7528 Oracle \u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u4fbf\u662f ORA-47220\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8207 Oracle Label Security (OLS) \u653f\u7b56\u6709\u95dc\uff0c\u7279\u5225\u662f\u5728\u6a19\u7c64\u7684\u5b9a\u7fa9\u548c\u4f7f\u7528\u4e0a\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e ORA-47220 \u932f\u8aa4\u7684\u539f\u56e0\u3001\u5f71\u97ff\u4ee5\u53ca\u5982\u4f55\u9032\u884c\u6545\u969c\u4fee\u5fa9\u3002<\/p>\n<h2 id=\"ora-47220-%e9%8c%af%e8%aa%a4%e7%9a%84%e5%8e%9f%e5%9b%a0-oDacIegboA\">ORA-47220 \u932f\u8aa4\u7684\u539f\u56e0<\/h2>\n<p>ORA-47220 \u932f\u8aa4\u7684\u5177\u9ad4\u4fe1\u606f\u70ba\u300c\u5728 OLS \u653f\u7b56 string \u4e0b\u8eab\u4efd string.string \u7684\u6a19\u7c64 string \u5df2\u5b9a\u7fa9\u300d\u3002\u9019\u610f\u5473\u8457\u5728\u67d0\u500b OLS \u653f\u7b56\u4e2d\uff0c\u5617\u8a66\u4f7f\u7528\u7684\u6a19\u7c64\u5df2\u7d93\u88ab\u5b9a\u7fa9\uff0c\u5c0e\u81f4\u7121\u6cd5\u9032\u884c\u9032\u4e00\u6b65\u7684\u64cd\u4f5c\u3002\u9019\u901a\u5e38\u767c\u751f\u5728\u4ee5\u4e0b\u5e7e\u7a2e\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li><strong>\u6a19\u7c64\u91cd\u8907\uff1a<\/strong>\u7576\u4e00\u500b\u6a19\u7c64\u5df2\u7d93\u5b58\u5728\u65bc OLS \u653f\u7b56\u4e2d\uff0c\u800c\u7528\u6236\u5617\u8a66\u518d\u6b21\u5b9a\u7fa9\u76f8\u540c\u7684\u6a19\u7c64\u6642\uff0c\u4fbf\u6703\u51fa\u73fe\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u6b0a\u9650\u4e0d\u8db3\uff1a<\/strong>\u7528\u6236\u53ef\u80fd\u6c92\u6709\u8db3\u5920\u7684\u6b0a\u9650\u4f86\u67e5\u770b\u6216\u4fee\u6539\u8a72\u6a19\u7c64\uff0c\u5f9e\u800c\u5c0e\u81f4\u932f\u8aa4\u3002<\/li>\n<li><strong>\u653f\u7b56\u914d\u7f6e\u932f\u8aa4\uff1a<\/strong>\u5982\u679c OLS \u653f\u7b56\u7684\u914d\u7f6e\u4e0d\u6b63\u78ba\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6a19\u7c64\u7684\u885d\u7a81\u6216\u4e0d\u4e00\u81f4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e9%80%b2%e8%a1%8c%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9-oDacIegboA\">\u5982\u4f55\u9032\u884c\u6545\u969c\u4fee\u5fa9<\/h2>\n<p>\u4fee\u5fa9 ORA-47220 \u932f\u8aa4\u9700\u8981\u9075\u5faa\u4ee5\u4e0b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e6%a8%99%e7%b1%a4%e5%ae%9a%e7%be%a9-oDacIegboA\">1. \u6aa2\u67e5\u6a19\u7c64\u5b9a\u7fa9<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5 OLS \u653f\u7b56\u4e2d\u5df2\u5b9a\u7fa9\u7684\u6a19\u7c64\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u67e5\u770b\u7576\u524d\u7684\u6a19\u7c64\uff1a<\/p>\n<pre><code>SELECT * FROM user_labels;<\/code><\/pre>\n<p>\u9019\u5c07\u5217\u51fa\u6240\u6709\u7528\u6236\u5b9a\u7fa9\u7684\u6a19\u7c64\uff0c\u5e6b\u52a9\u60a8\u78ba\u8a8d\u662f\u5426\u5b58\u5728\u91cd\u8907\u7684\u6a19\u7c64\u3002<\/p>\n<h3 id=\"2-%e6%aa%a2%e6%9f%a5%e7%94%a8%e6%88%b6%e6%ac%8a%e9%99%90-oDacIegboA\">2. \u6aa2\u67e5\u7528\u6236\u6b0a\u9650<\/h3>\n<p>\u78ba\u4fdd\u7576\u524d\u7528\u6236\u64c1\u6709\u8db3\u5920\u7684\u6b0a\u9650\u4f86\u8a2a\u554f\u548c\u4fee\u6539 OLS \u653f\u7b56\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u6aa2\u67e5\u7528\u6236\u7684\u6b0a\u9650\uff1a<\/p>\n<pre><code>SELECT * FROM user_sys_privs WHERE privilege LIKE '%OLS%';<\/code><\/pre>\n<p>\u5982\u679c\u767c\u73fe\u6b0a\u9650\u4e0d\u8db3\uff0c\u8acb\u806f\u7e6b\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u4ee5\u7372\u53d6\u5fc5\u8981\u7684\u6b0a\u9650\u3002<\/p>\n<h3 id=\"3-%e4%bf%ae%e6%94%b9%e6%88%96%e5%88%aa%e9%99%a4%e9%87%8d%e8%a4%87%e6%a8%99%e7%b1%a4-oDacIegboA\">3. \u4fee\u6539\u6216\u522a\u9664\u91cd\u8907\u6a19\u7c64<\/h3>\n<p>\u5982\u679c\u78ba\u5b9a\u5b58\u5728\u91cd\u8907\u7684\u6a19\u7c64\uff0c\u53ef\u4ee5\u9078\u64c7\u4fee\u6539\u6216\u522a\u9664\u5176\u4e2d\u4e00\u500b\u3002\u4f7f\u7528\u4ee5\u4e0b SQL \u8a9e\u53e5\u4f86\u522a\u9664\u6a19\u7c64\uff1a<\/p>\n<pre><code>BEGIN\n    DBMS_RLS.drop_label('label_name');\nEND;<\/code><\/pre>\n<p>\u8acb\u5c07 &#8216;label_name&#8217; \u66ff\u63db\u70ba\u5be6\u969b\u7684\u6a19\u7c64\u540d\u7a31\u3002<\/p>\n<h3 id=\"4-%e6%9b%b4%e6%96%b0-ols-%e6%94%bf%e7%ad%96-oDacIegboA\">4. \u66f4\u65b0 OLS \u653f\u7b56<\/h3>\n<p>\u5728\u89e3\u6c7a\u4e86\u6a19\u7c64\u7684\u554f\u984c\u5f8c\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u66f4\u65b0 OLS \u653f\u7b56\u4ee5\u78ba\u4fdd\u5176\u6b63\u5e38\u904b\u884c\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u8a9e\u53e5\u4f86\u66f4\u65b0\u653f\u7b56\uff1a<\/p>\n<pre><code>BEGIN\n    DBMS_RLS.add_policy('policy_name', 'table_name', 'label_column', 'label_value');\nEND;<\/code><\/pre>\n<p>\u78ba\u4fdd\u5c07 &#8216;policy_name&#8217;\u3001&#8217;table_name&#8217;\u3001&#8217;label_column&#8217; \u548c &#8216;label_value&#8217; \u66ff\u63db\u70ba\u76f8\u61c9\u7684\u503c\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-oDacIegboA\">\u7e3d\u7d50<\/h2>\n<p>ORA-47220 \u932f\u8aa4\u901a\u5e38\u8207 OLS \u653f\u7b56\u4e2d\u7684\u6a19\u7c64\u5b9a\u7fa9\u6709\u95dc\uff0c\u901a\u904e\u6aa2\u67e5\u6a19\u7c64\u3001\u7528\u6236\u6b0a\u9650\u4ee5\u53ca\u66f4\u65b0 OLS \u653f\u7b56\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f\u6578\u64da\u5eab\u7ba1\u7406\u9084\u662f\u61c9\u7528\u90e8\u7f72\uff0c\u9078\u64c7\u4e00\u500b\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u80fd\u5920\u70ba\u60a8\u7684\u696d\u52d9\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a ORA-47220 \u932f\u8aa4\uff0c\u4e86\u89e3 OLS \u653f\u7b56\u4e0b\u8eab\u4efd\u6a19\u7c64\u5b9a\u7fa9\u554f\u984c\uff0c\u63d0\u4f9b\u6545\u969c\u4fee\u5fa9\u548c\u9060\u7a0b\u8655\u7406\u6307\u5357\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-92900","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/92900","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=92900"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/92900\/revisions"}],"predecessor-version":[{"id":92901,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/92900\/revisions\/92901"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=92900"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=92900"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=92900"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}