{"id":95674,"date":"2024-10-20T03:02:17","date_gmt":"2024-10-19T19:02:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95674\/"},"modified":"2024-10-20T03:02:17","modified_gmt":"2024-10-19T19:02:17","slug":"oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e5%90%84%e9%a1%9e%e6%8e%a7%e5%88%b6%e8%aa%9e%e5%8f%a5%e7%9a%84%e4%bd%bf%e7%94%a8%e8%a9%b3%e7%b4%b0%e4%bb%8b%e7%b4%b9","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95674\/","title":{"rendered":"Oracle\u6578\u64da\u5eab\u5404\u985e\u63a7\u5236\u8a9e\u53e5\u7684\u4f7f\u7528\u8a73\u7d30\u4ecb\u7d39"},"content":{"rendered":"<h1 id=\"oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e5%90%84%e9%a1%9e%e6%8e%a7%e5%88%b6%e8%aa%9e%e5%8f%a5%e7%9a%84%e4%bd%bf%e7%94%a8%e8%a9%b3%e7%b4%b0%e4%bb%8b%e7%b4%b9-hvzspQrmiU\">Oracle\u6578\u64da\u5eab\u5404\u985e\u63a7\u5236\u8a9e\u53e5\u7684\u4f7f\u7528\u8a73\u7d30\u4ecb\u7d39<\/h1>\n<p>\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0c\u63a7\u5236\u8a9e\u53e5\u662f\u7528\u4f86\u7ba1\u7406\u6578\u64da\u5eab\u7684\u7d50\u69cb\u548c\u6578\u64da\u7684\u95dc\u9375\u5de5\u5177\u3002\u9019\u4e9b\u8a9e\u53e5\u53ef\u4ee5\u5206\u70ba\u5e7e\u500b\u4e3b\u8981\u985e\u5225\uff0c\u5305\u62ec\u6578\u64da\u5b9a\u7fa9\u8a9e\u8a00\uff08DDL\uff09\u3001\u6578\u64da\u64cd\u4f5c\u8a9e\u8a00\uff08DML\uff09\u3001\u6578\u64da\u63a7\u5236\u8a9e\u8a00\uff08DCL\uff09\u548c\u4e8b\u52d9\u63a7\u5236\u8a9e\u8a00\uff08TCL\uff09\u3002\u672c\u6587\u5c07\u8a73\u7d30\u4ecb\u7d39\u9019\u4e9b\u63a7\u5236\u8a9e\u53e5\u7684\u4f7f\u7528\u53ca\u5176\u7bc4\u4f8b\u3002<\/p>\n<h2 id=\"1-%e6%95%b8%e6%93%9a%e5%ae%9a%e7%be%a9%e8%aa%9e%e8%a8%80%ef%bc%88ddl%ef%bc%89-hvzspQrmiU\">1. \u6578\u64da\u5b9a\u7fa9\u8a9e\u8a00\uff08DDL\uff09<\/h2>\n<p>\u6578\u64da\u5b9a\u7fa9\u8a9e\u8a00\u4e3b\u8981\u7528\u65bc\u5b9a\u7fa9\u548c\u4fee\u6539\u6578\u64da\u5eab\u7d50\u69cb\u3002\u5e38\u898b\u7684DDL\u8a9e\u53e5\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>CREATE<\/code>\uff1a\u7528\u65bc\u5275\u5efa\u65b0\u7684\u6578\u64da\u5eab\u5c0d\u8c61\uff0c\u5982\u8868\u3001\u8996\u5716\u3001\u7d22\u5f15\u7b49\u3002<\/li>\n<li><code>ALTER<\/code>\uff1a\u7528\u65bc\u4fee\u6539\u73fe\u6709\u7684\u6578\u64da\u5eab\u5c0d\u8c61\u3002<\/li>\n<li><code>DROP<\/code>\uff1a\u7528\u65bc\u522a\u9664\u6578\u64da\u5eab\u5c0d\u8c61\u3002<\/li>\n<\/ul>\n<h3 id=\"%e7%af%84%e4%be%8b-hvzspQrmiU\">\u7bc4\u4f8b<\/h3>\n<pre><code>-- \u5275\u5efa\u4e00\u500b\u65b0\u8868\nCREATE TABLE employees (\n    employee_id NUMBER PRIMARY KEY,\n    first_name VARCHAR2(50),\n    last_name VARCHAR2(50),\n    hire_date DATE\n);\n\n-- \u4fee\u6539\u8868\u7d50\u69cb\uff0c\u6dfb\u52a0\u65b0\u5217\nALTER TABLE employees ADD (email VARCHAR2(100));\n\n-- \u522a\u9664\u8868\nDROP TABLE employees;<\/code><\/pre>\n<h2 id=\"2-%e6%95%b8%e6%93%9a%e6%93%8d%e4%bd%9c%e8%aa%9e%e8%a8%80%ef%bc%88dml%ef%bc%89-hvzspQrmiU\">2. \u6578\u64da\u64cd\u4f5c\u8a9e\u8a00\uff08DML\uff09<\/h2>\n<p>\u6578\u64da\u64cd\u4f5c\u8a9e\u8a00\u7528\u65bc\u67e5\u8a62\u548c\u64cd\u4f5c\u6578\u64da\u3002\u4e3b\u8981\u7684DML\u8a9e\u53e5\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>SELECT<\/code>\uff1a\u7528\u65bc\u67e5\u8a62\u6578\u64da\u3002<\/li>\n<li><code>INSERT<\/code>\uff1a\u7528\u65bc\u63d2\u5165\u65b0\u6578\u64da\u3002<\/li>\n<li><code>UPDATE<\/code>\uff1a\u7528\u65bc\u66f4\u65b0\u73fe\u6709\u6578\u64da\u3002<\/li>\n<li><code>DELETE<\/code>\uff1a\u7528\u65bc\u522a\u9664\u6578\u64da\u3002<\/li>\n<\/ul>\n<h3 id=\"%e7%af%84%e4%be%8b-hvzspQrmiU\">\u7bc4\u4f8b<\/h3>\n<pre><code>-- \u67e5\u8a62\u6240\u6709\u54e1\u5de5\nSELECT * FROM employees;\n\n-- \u63d2\u5165\u65b0\u54e1\u5de5\nINSERT INTO employees (employee_id, first_name, last_name, hire_date)\nVALUES (1, 'John', 'Doe', SYSDATE);\n\n-- \u66f4\u65b0\u54e1\u5de5\u7684\u96fb\u5b50\u90f5\u4ef6\nUPDATE employees SET email = 'john.doe@example.com' WHERE employee_id = 1;\n\n-- \u522a\u9664\u54e1\u5de5\nDELETE FROM employees WHERE employee_id = 1;<\/code><\/pre>\n<h2 id=\"3-%e6%95%b8%e6%93%9a%e6%8e%a7%e5%88%b6%e8%aa%9e%e8%a8%80%ef%bc%88dcl%ef%bc%89-hvzspQrmiU\">3. \u6578\u64da\u63a7\u5236\u8a9e\u8a00\uff08DCL\uff09<\/h2>\n<p>\u6578\u64da\u63a7\u5236\u8a9e\u8a00\u7528\u65bc\u63a7\u5236\u5c0d\u6578\u64da\u7684\u8a2a\u554f\u6b0a\u9650\u3002\u4e3b\u8981\u7684DCL\u8a9e\u53e5\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>GRANT<\/code>\uff1a\u6388\u4e88\u7528\u6236\u6b0a\u9650\u3002<\/li>\n<li><code>REVOKE<\/code>\uff1a\u64a4\u56de\u7528\u6236\u6b0a\u9650\u3002<\/li>\n<\/ul>\n<h3 id=\"%e7%af%84%e4%be%8b-hvzspQrmiU\">\u7bc4\u4f8b<\/h3>\n<pre><code>-- \u6388\u4e88\u7528\u6236\u67e5\u8a62\u8868\u7684\u6b0a\u9650\nGRANT SELECT ON employees TO user1;\n\n-- \u64a4\u56de\u7528\u6236\u7684\u67e5\u8a62\u6b0a\u9650\nREVOKE SELECT ON employees FROM user1;<\/code><\/pre>\n<h2 id=\"4-%e4%ba%8b%e5%8b%99%e6%8e%a7%e5%88%b6%e8%aa%9e%e8%a8%80%ef%bc%88tcl%ef%bc%89-hvzspQrmiU\">4. \u4e8b\u52d9\u63a7\u5236\u8a9e\u8a00\uff08TCL\uff09<\/h2>\n<p>\u4e8b\u52d9\u63a7\u5236\u8a9e\u8a00\u7528\u65bc\u7ba1\u7406\u4e8b\u52d9\u7684\u57f7\u884c\u3002\u4e3b\u8981\u7684TCL\u8a9e\u53e5\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>COMMIT<\/code>\uff1a\u63d0\u4ea4\u4e8b\u52d9\u3002<\/li>\n<li><code>ROLLBACK<\/code>\uff1a\u56de\u6efe\u4e8b\u52d9\u3002<\/li>\n<li><code>SAVEPOINT<\/code>\uff1a\u8a2d\u7f6e\u4e8b\u52d9\u4e2d\u7684\u4fdd\u5b58\u9ede\u3002<\/li>\n<\/ul>\n<h3 id=\"%e7%af%84%e4%be%8b-hvzspQrmiU\">\u7bc4\u4f8b<\/h3>\n<pre><code>-- \u958b\u59cb\u4e00\u500b\u4e8b\u52d9\nINSERT INTO employees (employee_id, first_name, last_name, hire_date)\nVALUES (2, 'Jane', 'Smith', SYSDATE);\n\n-- \u8a2d\u7f6e\u4fdd\u5b58\u9ede\nSAVEPOINT sp1;\n\n-- \u66f4\u65b0\u54e1\u5de5\u8cc7\u6599\nUPDATE employees SET email = 'jane.smith@example.com' WHERE employee_id = 2;\n\n-- \u5982\u679c\u9700\u8981\u56de\u6efe\u5230\u4fdd\u5b58\u9ede\nROLLBACK TO sp1;\n\n-- \u63d0\u4ea4\u4e8b\u52d9\nCOMMIT;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-hvzspQrmiU\">\u7e3d\u7d50<\/h2>\n<p>Oracle\u6578\u64da\u5eab\u7684\u63a7\u5236\u8a9e\u53e5\u662f\u6578\u64da\u5eab\u7ba1\u7406\u7684\u57fa\u790e\uff0c\u7121\u8ad6\u662f\u5275\u5efa\u7d50\u69cb\u3001\u64cd\u4f5c\u6578\u64da\u9084\u662f\u63a7\u5236\u8a2a\u554f\u6b0a\u9650\uff0c\u9019\u4e9b\u8a9e\u53e5\u90fd\u626e\u6f14\u8457\u91cd\u8981\u89d2\u8272\u3002\u638c\u63e1\u9019\u4e9b\u8a9e\u53e5\u7684\u4f7f\u7528\uff0c\u80fd\u5920\u6709\u6548\u5730\u7ba1\u7406\u548c\u64cd\u4f5c\u6578\u64da\u5eab\uff0c\u63d0\u5347\u5de5\u4f5c\u6548\u7387\u3002\u5982\u679c\u60a8\u5c0d\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u6709\u9032\u4e00\u6b65\u7684\u9700\u6c42\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u4f86\u642d\u5efa\u60a8\u7684\u6578\u64da\u5eab\u74b0\u5883\uff0c\u4eab\u53d7\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u4ecb\u7d39Oracle\u6578\u64da\u5eab\u5404\u985e\u63a7\u5236\u8a9e\u53e5\u7684\u4f7f\u7528\uff0c\u5305\u62ecDDL\u3001DML\u3001DCL\u53ca\u5176\u61c9\u7528\u7bc4\u4f8b\uff0c\u52a9\u60a8\u638c\u63e1\u6578\u64da\u5eab\u7ba1\u7406\u6280\u5de7\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-95674","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95674","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=95674"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95674\/revisions"}],"predecessor-version":[{"id":95675,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95674\/revisions\/95675"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95674"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95674"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95674"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}