{"id":95400,"date":"2024-10-20T00:44:17","date_gmt":"2024-10-19T16:44:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95400\/"},"modified":"2024-10-20T00:44:18","modified_gmt":"2024-10-19T16:44:18","slug":"oracle%e6%95%b8%e6%93%9a%e6%93%8d%e4%bd%9c%e8%88%87%e6%8e%a7%e5%88%b6%e8%aa%9e%e8%a8%80%e7%9a%84%e6%ad%a5%e9%a9%9f%e8%ac%9b%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95400\/","title":{"rendered":"Oracle\u6578\u64da\u64cd\u4f5c\u8207\u63a7\u5236\u8a9e\u8a00\u7684\u6b65\u9a5f\u8b1b\u89e3"},"content":{"rendered":"<h1 id=\"oracle%e6%95%b8%e6%93%9a%e6%93%8d%e4%bd%9c%e8%88%87%e6%8e%a7%e5%88%b6%e8%aa%9e%e8%a8%80%e7%9a%84%e6%ad%a5%e9%a9%9f%e8%ac%9b%e8%a7%a3-bTiMOLJiir\">Oracle\u6578\u64da\u64cd\u4f5c\u8207\u63a7\u5236\u8a9e\u8a00\u7684\u6b65\u9a5f\u8b1b\u89e3<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cOracle\u6578\u64da\u5eab\u4ee5\u5176\u5f37\u5927\u7684\u529f\u80fd\u548c\u9748\u6d3b\u6027\u800c\u805e\u540d\u3002\u6578\u64da\u64cd\u4f5c\u8207\u63a7\u5236\u8a9e\u8a00\uff08DML\u548cDCL\uff09\u662f\u8207\u6578\u64da\u5eab\u4ea4\u4e92\u7684\u6838\u5fc3\u90e8\u5206\u3002\u672c\u6587\u5c07\u8a73\u7d30\u4ecb\u7d39Oracle\u6578\u64da\u64cd\u4f5c\u8207\u63a7\u5236\u8a9e\u8a00\u7684\u57fa\u672c\u6b65\u9a5f\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u5728Oracle\u6578\u64da\u5eab\u4e2d\u9032\u884c\u6578\u64da\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%95%b8%e6%93%9a%e6%93%8d%e4%bd%9c%e8%aa%9e%e8%a8%80%ef%bc%88dml%ef%bc%89%ef%bc%9f-bTiMOLJiir\">\u4ec0\u9ebc\u662f\u6578\u64da\u64cd\u4f5c\u8a9e\u8a00\uff08DML\uff09\uff1f<\/h2>\n<p>\u6578\u64da\u64cd\u4f5c\u8a9e\u8a00\uff08DML\uff09\u662f\u7528\u65bc\u67e5\u8a62\u548c\u4fee\u6539\u6578\u64da\u7684\u8a9e\u8a00\u3002Oracle\u652f\u6301\u591a\u7a2eDML\u8a9e\u53e5\uff0c\u4e3b\u8981\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>SELECT<\/strong>\uff1a\u7528\u65bc\u67e5\u8a62\u6578\u64da\u3002<\/li>\n<li><strong>INSERT<\/strong>\uff1a\u7528\u65bc\u63d2\u5165\u65b0\u6578\u64da\u3002<\/li>\n<li><strong>UPDATE<\/strong>\uff1a\u7528\u65bc\u66f4\u65b0\u73fe\u6709\u6578\u64da\u3002<\/li>\n<li><strong>DELETE<\/strong>\uff1a\u7528\u65bc\u522a\u9664\u6578\u64da\u3002<\/li>\n<\/ul>\n<h3 id=\"1-select-%e8%aa%9e%e5%8f%a5-bTiMOLJiir\">1. SELECT \u8a9e\u53e5<\/h3>\n<p>SELECT\u8a9e\u53e5\u662f\u7528\u65bc\u5f9e\u6578\u64da\u5eab\u4e2d\u6aa2\u7d22\u6578\u64da\u7684\u57fa\u672c\u8a9e\u53e5\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT * FROM employees WHERE department_id = 10;<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u5f9e\u201cemployees\u201d\u8868\u4e2d\u6aa2\u7d22\u6240\u6709\u90e8\u9580ID\u70ba10\u7684\u54e1\u5de5\u4fe1\u606f\u3002<\/p>\n<h3 id=\"2-insert-%e8%aa%9e%e5%8f%a5-bTiMOLJiir\">2. INSERT \u8a9e\u53e5<\/h3>\n<p>INSERT\u8a9e\u53e5\u7528\u65bc\u5411\u8868\u4e2d\u6dfb\u52a0\u65b0\u8a18\u9304\u3002\u4ee5\u4e0b\u662fINSERT\u8a9e\u53e5\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>INSERT INTO employees (first_name, last_name, department_id) VALUES ('John', 'Doe', 10);<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u4e00\u540d\u540d\u70baJohn Doe\u7684\u54e1\u5de5\u6dfb\u52a0\u5230\u90e8\u9580ID\u70ba10\u7684\u8868\u4e2d\u3002<\/p>\n<h3 id=\"3-update-%e8%aa%9e%e5%8f%a5-bTiMOLJiir\">3. UPDATE \u8a9e\u53e5<\/h3>\n<p>UPDATE\u8a9e\u53e5\u7528\u65bc\u4fee\u6539\u73fe\u6709\u8a18\u9304\u3002\u4ee5\u4e0b\u662fUPDATE\u8a9e\u53e5\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>UPDATE employees SET department_id = 20 WHERE employee_id = 1;<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u54e1\u5de5ID\u70ba1\u7684\u54e1\u5de5\u7684\u90e8\u9580ID\u66f4\u65b0\u70ba20\u3002<\/p>\n<h3 id=\"4-delete-%e8%aa%9e%e5%8f%a5-bTiMOLJiir\">4. DELETE \u8a9e\u53e5<\/h3>\n<p>DELETE\u8a9e\u53e5\u7528\u65bc\u522a\u9664\u8868\u4e2d\u7684\u8a18\u9304\u3002\u4ee5\u4e0b\u662fDELETE\u8a9e\u53e5\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>DELETE FROM employees WHERE employee_id = 1;<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u522a\u9664\u54e1\u5de5ID\u70ba1\u7684\u54e1\u5de5\u8a18\u9304\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%95%b8%e6%93%9a%e6%8e%a7%e5%88%b6%e8%aa%9e%e8%a8%80%ef%bc%88dcl%ef%bc%89%ef%bc%9f-bTiMOLJiir\">\u4ec0\u9ebc\u662f\u6578\u64da\u63a7\u5236\u8a9e\u8a00\uff08DCL\uff09\uff1f<\/h2>\n<p>\u6578\u64da\u63a7\u5236\u8a9e\u8a00\uff08DCL\uff09\u7528\u65bc\u63a7\u5236\u5c0d\u6578\u64da\u5eab\u7684\u8a2a\u554f\u6b0a\u9650\u3002Oracle\u652f\u6301\u7684DCL\u8a9e\u53e5\u4e3b\u8981\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>GRANT<\/strong>\uff1a\u6388\u4e88\u7528\u6236\u6b0a\u9650\u3002<\/li>\n<li><strong>REVOKE<\/strong>\uff1a\u64a4\u56de\u7528\u6236\u6b0a\u9650\u3002<\/li>\n<\/ul>\n<h3 id=\"1-grant-%e8%aa%9e%e5%8f%a5-bTiMOLJiir\">1. GRANT \u8a9e\u53e5<\/h3>\n<p>GRANT\u8a9e\u53e5\u7528\u65bc\u6388\u4e88\u7528\u6236\u7279\u5b9a\u7684\u6b0a\u9650\u3002\u4ee5\u4e0b\u662fGRANT\u8a9e\u53e5\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>GRANT SELECT ON employees TO user1;<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u201cemployees\u201d\u8868\u7684\u67e5\u8a62\u6b0a\u9650\u6388\u4e88\u7528\u6236user1\u3002<\/p>\n<h3 id=\"2-revoke-%e8%aa%9e%e5%8f%a5-bTiMOLJiir\">2. REVOKE \u8a9e\u53e5<\/h3>\n<p>REVOKE\u8a9e\u53e5\u7528\u65bc\u64a4\u56de\u7528\u6236\u7684\u6b0a\u9650\u3002\u4ee5\u4e0b\u662fREVOKE\u8a9e\u53e5\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>REVOKE SELECT ON employees FROM user1;<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u64a4\u56de\u7528\u6236user1\u5c0d\u201cemployees\u201d\u8868\u7684\u67e5\u8a62\u6b0a\u9650\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-bTiMOLJiir\">\u7e3d\u7d50<\/h2>\n<p>Oracle\u6578\u64da\u64cd\u4f5c\u8207\u63a7\u5236\u8a9e\u8a00\u662f\u6578\u64da\u5eab\u7ba1\u7406\u7684\u91cd\u8981\u7d44\u6210\u90e8\u5206\uff0c\u901a\u904eDML\u548cDCL\u8a9e\u53e5\uff0c\u4f7f\u7528\u8005\u53ef\u4ee5\u6709\u6548\u5730\u67e5\u8a62\u3001\u4fee\u6539\u548c\u63a7\u5236\u6578\u64da\u7684\u8a2a\u554f\u6b0a\u9650\u3002\u638c\u63e1\u9019\u4e9b\u57fa\u672c\u8a9e\u53e5\u5f8c\uff0c\u4f7f\u7528\u8005\u53ef\u4ee5\u66f4\u9748\u6d3b\u5730\u7ba1\u7406\u6578\u64da\u5eab\uff0c\u63d0\u5347\u5de5\u4f5c\u6548\u7387\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728Oracle\u6578\u64da\u5eab\u4e2d\u9032\u884c\u66f4\u6df1\u5165\u7684\u64cd\u4f5c\u611f\u8208\u8da3\uff0c\u6216\u8005\u9700\u8981\u9ad8\u6548\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u9700\u6c42\uff0c\u8acb\u96a8\u6642\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u63a2\u8a0eOracle\u6578\u64da\u64cd\u4f5c\u8207\u63a7\u5236\u8a9e\u8a00\u7684\u6b65\u9a5f\uff0c\u5e6b\u52a9\u60a8\u638c\u63e1\u6578\u64da\u7ba1\u7406\u8207\u67e5\u8a62\u7684\u6280\u5de7\u8207\u65b9\u6cd5\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-95400","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95400","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=95400"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95400\/revisions"}],"predecessor-version":[{"id":95401,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95400\/revisions\/95401"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95400"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95400"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95400"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}