{"id":166939,"date":"2024-11-05T20:58:46","date_gmt":"2024-11-05T12:58:46","guid":{"rendered":"https:\/\/server.hk\/cnblog\/166939\/"},"modified":"2024-11-05T20:58:47","modified_gmt":"2024-11-05T12:58:47","slug":"%e7%90%86%e8%ab%96%e5%88%86%e6%9e%90oracle-sql%e8%aa%9e%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/166939\/","title":{"rendered":"\u7406\u8ad6\u5206\u6790Oracle SQL\u8a9e\u6cd5"},"content":{"rendered":"<h1 id=\"%e7%90%86%e8%ab%96%e5%88%86%e6%9e%90oracle-sql%e8%aa%9e%e6%b3%95-XmFYiKNjYq\">\u7406\u8ad6\u5206\u6790Oracle SQL\u8a9e\u6cd5<\/h1>\n<p>Oracle SQL\u662f\u4e00\u7a2e\u5f37\u5927\u7684\u8cc7\u6599\u5eab\u67e5\u8a62\u8a9e\u8a00\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5546\u696d\u548c\u6280\u8853\u74b0\u5883\u4e2d\u3002\u7406\u89e3\u5176\u8a9e\u6cd5\u7d50\u69cb\u5c0d\u65bc\u6709\u6548\u5730\u64cd\u4f5c\u548c\u7ba1\u7406\u8cc7\u6599\u5eab\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eOracle SQL\u7684\u57fa\u672c\u8a9e\u6cd5\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u7bc4\u4f8b\uff0c\u4ee5\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u638c\u63e1\u9019\u4e00\u5de5\u5177\u3002<\/p>\n<h2 id=\"oracle-sql%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%b5%90%e6%a7%8b-XmFYiKNjYq\">Oracle SQL\u7684\u57fa\u672c\u7d50\u69cb<\/h2>\n<p>Oracle SQL\u7684\u8a9e\u6cd5\u4e3b\u8981\u7531\u4ee5\u4e0b\u5e7e\u500b\u90e8\u5206\u7d44\u6210\uff1a<\/p>\n<ul>\n<li><strong id=\"%e6%9f%a5%e8%a9%a2%e8%aa%9e%e5%8f%a5%ef%bc%88select%ef%bc%89-XmFYiKNjYq\">\u67e5\u8a62\u8a9e\u53e5\uff08SELECT\uff09<\/strong>\uff1a\u7528\u65bc\u5f9e\u8cc7\u6599\u5eab\u4e2d\u6aa2\u7d22\u6578\u64da\u3002<\/li>\n<li><strong id=\"%e6%95%b8%e6%93%9a%e6%93%8d%e4%bd%9c%e8%aa%9e%e8%a8%80%ef%bc%88dml%ef%bc%89-XmFYiKNjYq\">\u6578\u64da\u64cd\u4f5c\u8a9e\u8a00\uff08DML\uff09<\/strong>\uff1a\u5305\u62ec\u63d2\u5165\uff08INSERT\uff09\u3001\u66f4\u65b0\uff08UPDATE\uff09\u548c\u522a\u9664\uff08DELETE\uff09\u64cd\u4f5c\u3002<\/li>\n<li><strong id=\"%e6%95%b8%e6%93%9a%e5%ae%9a%e7%be%a9%e8%aa%9e%e8%a8%80%ef%bc%88ddl%ef%bc%89-XmFYiKNjYq\">\u6578\u64da\u5b9a\u7fa9\u8a9e\u8a00\uff08DDL\uff09<\/strong>\uff1a\u7528\u65bc\u5b9a\u7fa9\u8cc7\u6599\u5eab\u7d50\u69cb\uff0c\u5982\u5275\u5efa\uff08CREATE\uff09\u3001\u4fee\u6539\uff08ALTER\uff09\u548c\u522a\u9664\uff08DROP\uff09\u8868\u3002<\/li>\n<li><strong>\u6578\u64da\u63a7\u5236\u8a9e\u8a00\uff08DCL\uff09<\/strong>\uff1a\u7528\u65bc\u63a7\u5236\u5c0d\u8cc7\u6599\u5eab\u7684\u8a2a\u554f\u6b0a\u9650\uff0c\u5982\u6388\u6b0a\uff08GRANT\uff09\u548c\u64a4\u92b7\uff08REVOKE\uff09\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%9f%a5%e8%a9%a2%e8%aa%9e%e5%8f%a5%ef%bc%88select%ef%bc%89-XmFYiKNjYq\">\u67e5\u8a62\u8a9e\u53e5\uff08SELECT\uff09<\/h2>\n<p>\u67e5\u8a62\u8a9e\u53e5\u662fOracle SQL\u4e2d\u6700\u5e38\u7528\u7684\u8a9e\u53e5\u4e4b\u4e00\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>SELECT column1, column2, ...\nFROM table_name\nWHERE condition;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba\u201cemployees\u201d\u7684\u8868\uff0c\u60f3\u8981\u67e5\u8a62\u6240\u6709\u54e1\u5de5\u7684\u59d3\u540d\u548c\u85aa\u6c34\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/p>\n<pre><code>SELECT name, salary\nFROM employees\nWHERE department = 'Sales';<\/code><\/pre>\n<h2 id=\"%e6%95%b8%e6%93%9a%e6%93%8d%e4%bd%9c%e8%aa%9e%e8%a8%80%ef%bc%88dml%ef%bc%89-XmFYiKNjYq\">\u6578\u64da\u64cd\u4f5c\u8a9e\u8a00\uff08DML\uff09<\/h2>\n<p>\u6578\u64da\u64cd\u4f5c\u8a9e\u8a00\u5141\u8a31\u7528\u6236\u5c0d\u8cc7\u6599\u5eab\u4e2d\u7684\u6578\u64da\u9032\u884c\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u4e09\u500b\u4e3b\u8981\u7684DML\u8a9e\u53e5\uff1a<\/p>\n<h3 id=\"%e6%8f%92%e5%85%a5%ef%bc%88insert%ef%bc%89-XmFYiKNjYq\">\u63d2\u5165\uff08INSERT\uff09<\/h3>\n<p>\u63d2\u5165\u8a9e\u53e5\u7528\u65bc\u5c07\u65b0\u6578\u64da\u6dfb\u52a0\u5230\u8868\u4e2d\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>INSERT INTO table_name (column1, column2, ...)\nVALUES (value1, value2, ...);<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5411\u201cemployees\u201d\u8868\u4e2d\u63d2\u5165\u4e00\u540d\u65b0\u54e1\u5de5\u7684\u6578\u64da\uff1a<\/p>\n<pre><code>INSERT INTO employees (name, salary, department)\nVALUES ('John Doe', 50000, 'Sales');<\/code><\/pre>\n<h3 id=\"%e6%9b%b4%e6%96%b0%ef%bc%88update%ef%bc%89-XmFYiKNjYq\">\u66f4\u65b0\uff08UPDATE\uff09<\/h3>\n<p>\u66f4\u65b0\u8a9e\u53e5\u7528\u65bc\u4fee\u6539\u73fe\u6709\u6578\u64da\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>UPDATE table_name\nSET column1 = value1, column2 = value2, ...\nWHERE condition;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5c07\u201cJohn Doe\u201d\u7684\u85aa\u6c34\u66f4\u65b0\u70ba60000\uff1a<\/p>\n<pre><code>UPDATE employees\nSET salary = 60000\nWHERE name = 'John Doe';<\/code><\/pre>\n<h3 id=\"%e5%88%aa%e9%99%a4%ef%bc%88delete%ef%bc%89-XmFYiKNjYq\">\u522a\u9664\uff08DELETE\uff09<\/h3>\n<p>\u522a\u9664\u8a9e\u53e5\u7528\u65bc\u5f9e\u8868\u4e2d\u522a\u9664\u6578\u64da\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>DELETE FROM table_name\nWHERE condition;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u522a\u9664\u201cJohn Doe\u201d\u7684\u8a18\u9304\uff1a<\/p>\n<pre><code>DELETE FROM employees\nWHERE name = 'John Doe';<\/code><\/pre>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ae%9a%e7%be%a9%e8%aa%9e%e8%a8%80%ef%bc%88ddl%ef%bc%89-XmFYiKNjYq\">\u6578\u64da\u5b9a\u7fa9\u8a9e\u8a00\uff08DDL\uff09<\/h2>\n<p>\u6578\u64da\u5b9a\u7fa9\u8a9e\u8a00\u7528\u65bc\u5275\u5efa\u548c\u4fee\u6539\u8cc7\u6599\u5eab\u7d50\u69cb\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684DDL\u8a9e\u53e5\uff1a<\/p>\n<h3 id=\"%e5%89%b5%e5%bb%ba%e8%a1%a8%ef%bc%88create-table%ef%bc%89-XmFYiKNjYq\">\u5275\u5efa\u8868\uff08CREATE TABLE\uff09<\/h3>\n<p>\u5275\u5efa\u8868\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>CREATE TABLE table_name (\n    column1 datatype,\n    column2 datatype,\n    ...\n);<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5275\u5efa\u4e00\u500b\u540d\u70ba\u201cemployees\u201d\u7684\u8868\uff1a<\/p>\n<pre><code>CREATE TABLE employees (\n    id NUMBER PRIMARY KEY,\n    name VARCHAR2(100),\n    salary NUMBER,\n    department VARCHAR2(50)\n);<\/code><\/pre>\n<h3 id=\"%e4%bf%ae%e6%94%b9%e8%a1%a8%ef%bc%88alter-table%ef%bc%89-XmFYiKNjYq\">\u4fee\u6539\u8868\uff08ALTER TABLE\uff09<\/h3>\n<p>\u4fee\u6539\u8868\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>ALTER TABLE table_name\nADD column_name datatype;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5411\u201cemployees\u201d\u8868\u4e2d\u6dfb\u52a0\u4e00\u500b\u201chire_date\u201d\u5217\uff1a<\/p>\n<pre><code>ALTER TABLE employees\nADD hire_date DATE;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-XmFYiKNjYq\">\u7e3d\u7d50<\/h2>\n<p>Oracle SQL\u8a9e\u6cd5\u7684\u7406\u89e3\u5c0d\u65bc\u8cc7\u6599\u5eab\u7ba1\u7406\u548c\u6578\u64da\u64cd\u4f5c\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u638c\u63e1\u57fa\u672c\u7684\u67e5\u8a62\u3001\u6578\u64da\u64cd\u4f5c\u548c\u6578\u64da\u5b9a\u7fa9\u8a9e\u8a00\uff0c\u4f7f\u7528\u8005\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u548c\u5206\u6790\u8cc7\u6599\u5eab\u4e2d\u7684\u6578\u64da\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u548c\u7a69\u5b9a\u6027\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u4e00\u500b\u91cd\u8981\u7684\u8003\u91cf\u3002\u7121\u8ad6\u662f\u4f01\u696d\u9084\u662f\u500b\u4eba\u7528\u6236\uff0c\u4e86\u89e3Oracle SQL\u7684\u57fa\u672c\u8a9e\u6cd5\u90fd\u80fd\u5e6b\u52a9\u4ed6\u5011\u66f4\u597d\u5730\u5229\u7528\u8cc7\u6599\u5eab\u6280\u8853\uff0c\u63d0\u5347\u5de5\u4f5c\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u63a2\u8a0eOracle SQL\u8a9e\u6cd5\u7684\u7406\u8ad6\u5206\u6790\uff0c\u5e6b\u52a9\u60a8\u7406\u89e3\u6578\u64da\u5eab\u67e5\u8a62\u7684\u6700\u4f73\u5be6\u8e10\u8207\u61c9\u7528\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-166939","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/166939","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=166939"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/166939\/revisions"}],"predecessor-version":[{"id":166940,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/166939\/revisions\/166940"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=166939"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=166939"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=166939"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}