{"id":196394,"date":"2024-11-13T23:13:22","date_gmt":"2024-11-13T15:13:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/196394\/"},"modified":"2024-11-13T23:13:23","modified_gmt":"2024-11-13T15:13:23","slug":"%e5%9f%b7%e8%a1%8coracle-sql%e7%9a%84%e5%af%a6%e9%9a%9b%e6%ad%a5%e9%a9%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/196394\/","title":{"rendered":"\u57f7\u884cOracle sql\u7684\u5be6\u969b\u6b65\u9a5f"},"content":{"rendered":"<h1 id=\"%e5%9f%b7%e8%a1%8coracle-sql%e7%9a%84%e5%af%a6%e9%9a%9b%e6%ad%a5%e9%a9%9f-JCiGcexqtD\">\u57f7\u884cOracle SQL\u7684\u5be6\u969b\u6b65\u9a5f<\/h1>\n<p>Oracle SQL\u662f\u4e00\u7a2e\u5f37\u5927\u7684\u6578\u64da\u5eab\u67e5\u8a62\u8a9e\u8a00\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5546\u696d\u548c\u6280\u8853\u74b0\u5883\u4e2d\u3002\u7121\u8ad6\u662f\u6578\u64da\u5206\u6790\u3001\u5831\u544a\u751f\u6210\u9084\u662f\u6578\u64da\u7ba1\u7406\uff0c\u638c\u63e1Oracle SQL\u7684\u57fa\u672c\u64cd\u4f5c\u90fd\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u57f7\u884cOracle SQL\u7684\u5be6\u969b\u6b65\u9a5f\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u5728Oracle\u6578\u64da\u5eab\u4e2d\u9032\u884c\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"1-%e7%92%b0%e5%a2%83%e6%ba%96%e5%82%99-JCiGcexqtD\">1. \u74b0\u5883\u6e96\u5099<\/h2>\n<p>\u5728\u958b\u59cb\u57f7\u884cOracle SQL\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u78ba\u4fdd\u5df2\u7d93\u5b89\u88dd\u4e86Oracle\u6578\u64da\u5eab\u548c\u76f8\u61c9\u7684\u5ba2\u6236\u7aef\u5de5\u5177\u3002\u5e38\u7528\u7684\u5ba2\u6236\u7aef\u5de5\u5177\u5305\u62ecSQL*Plus\u548cOracle SQL Developer\u3002\u4ee5\u4e0b\u662f\u5b89\u88dd\u548c\u914d\u7f6e\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li>\u4e0b\u8f09Oracle\u6578\u64da\u5eab\u5b89\u88dd\u5305\uff0c\u4e26\u6839\u64da\u64cd\u4f5c\u7cfb\u7d71\u7684\u8981\u6c42\u9032\u884c\u5b89\u88dd\u3002<\/li>\n<li>\u5b89\u88dd\u5b8c\u6210\u5f8c\uff0c\u914d\u7f6e\u74b0\u5883\u8b8a\u91cf\uff0c\u4f8b\u5982ORACLE_HOME\u548cPATH\u3002<\/li>\n<li>\u5b89\u88ddSQL*Plus\u6216Oracle SQL Developer\uff0c\u9019\u4e9b\u5de5\u5177\u5c07\u5e6b\u52a9\u4f60\u9023\u63a5\u5230Oracle\u6578\u64da\u5eab\u3002<\/li>\n<\/ul>\n<h2 id=\"2-%e9%80%a3%e6%8e%a5%e5%88%b0oracle%e6%95%b8%e6%93%9a%e5%ba%ab-JCiGcexqtD\">2. \u9023\u63a5\u5230Oracle\u6578\u64da\u5eab<\/h2>\n<p>\u5728\u57f7\u884cSQL\u67e5\u8a62\u4e4b\u524d\uff0c\u5fc5\u9808\u5148\u9023\u63a5\u5230Oracle\u6578\u64da\u5eab\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528SQL*Plus\u9023\u63a5\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>sqlplus username\/password@hostname:port\/SID<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<code>username<\/code>\u662f\u4f60\u7684\u6578\u64da\u5eab\u7528\u6236\u540d\uff0c<code>password<\/code>\u662f\u5bc6\u78bc\uff0c<code>hostname<\/code>\u662f\u6578\u64da\u5eab\u4f3a\u670d\u5668\u7684\u5730\u5740\uff0c<code>port<\/code>\u662f\u6578\u64da\u5eab\u7684\u7aef\u53e3\u865f\uff08\u9ed8\u8a8d\u70ba1521\uff09\uff0c<code>SID<\/code>\u662f\u6578\u64da\u5eab\u7684\u7cfb\u7d71\u8b58\u5225\u7b26\u3002<\/p>\n<h2 id=\"3-%e5%9f%b7%e8%a1%8c%e5%9f%ba%e6%9c%ac%e7%9a%84sql%e6%9f%a5%e8%a9%a2-JCiGcexqtD\">3. \u57f7\u884c\u57fa\u672c\u7684SQL\u67e5\u8a62<\/h2>\n<p>\u9023\u63a5\u6210\u529f\u5f8c\uff0c\u53ef\u4ee5\u958b\u59cb\u57f7\u884cSQL\u67e5\u8a62\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u672c\u7684SQL\u67e5\u8a62\u793a\u4f8b\uff1a<\/p>\n<h3 id=\"3-1-%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a-JCiGcexqtD\">3.1 \u67e5\u8a62\u6578\u64da<\/h3>\n<p>\u4f7f\u7528<code>SELECT<\/code>\u8a9e\u53e5\u67e5\u8a62\u6578\u64da\uff1a<\/p>\n<pre><code>SELECT * FROM employees;<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u8fd4\u56de<code>employees<\/code>\u8868\u4e2d\u7684\u6240\u6709\u8a18\u9304\u3002<\/p>\n<h3 id=\"3-2-%e6%8f%92%e5%85%a5%e6%95%b8%e6%93%9a-JCiGcexqtD\">3.2 \u63d2\u5165\u6578\u64da<\/h3>\n<p>\u4f7f\u7528<code>INSERT<\/code>\u8a9e\u53e5\u63d2\u5165\u65b0\u6578\u64da\uff1a<\/p>\n<pre><code>INSERT INTO employees (id, name, position) VALUES (1, 'John Doe', 'Developer');<\/code><\/pre>\n<h3 id=\"3-3-%e6%9b%b4%e6%96%b0%e6%95%b8%e6%93%9a-JCiGcexqtD\">3.3 \u66f4\u65b0\u6578\u64da<\/h3>\n<p>\u4f7f\u7528<code>UPDATE<\/code>\u8a9e\u53e5\u66f4\u65b0\u73fe\u6709\u6578\u64da\uff1a<\/p>\n<pre><code>UPDATE employees SET position = 'Senior Developer' WHERE id = 1;<\/code><\/pre>\n<h3 id=\"3-4-%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a-JCiGcexqtD\">3.4 \u522a\u9664\u6578\u64da<\/h3>\n<p>\u4f7f\u7528<code>DELETE<\/code>\u8a9e\u53e5\u522a\u9664\u6578\u64da\uff1a<\/p>\n<pre><code>DELETE FROM employees WHERE id = 1;<\/code><\/pre>\n<h2 id=\"4-%e4%bd%bf%e7%94%a8%e4%ba%8b%e5%8b%99%e6%8e%a7%e5%88%b6-JCiGcexqtD\">4. \u4f7f\u7528\u4e8b\u52d9\u63a7\u5236<\/h2>\n<p>\u5728\u57f7\u884c\u591a\u500bSQL\u64cd\u4f5c\u6642\uff0c\u4f7f\u7528\u4e8b\u52d9\u63a7\u5236\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528<code>COMMIT<\/code>\u548c<code>ROLLBACK<\/code>\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>BEGIN;\nINSERT INTO employees (id, name, position) VALUES (2, 'Jane Smith', 'Manager');\nCOMMIT;<\/code><\/pre>\n<p>\u5982\u679c\u5728\u63d2\u5165\u904e\u7a0b\u4e2d\u51fa\u73fe\u932f\u8aa4\uff0c\u53ef\u4ee5\u4f7f\u7528<code>ROLLBACK<\/code>\u4f86\u64a4\u92b7\u64cd\u4f5c\uff1a<\/p>\n<pre><code>ROLLBACK;<\/code><\/pre>\n<h2 id=\"5-%e6%9f%a5%e8%a9%a2%e6%80%a7%e8%83%bd%e5%84%aa%e5%8c%96-JCiGcexqtD\">5. \u67e5\u8a62\u6027\u80fd\u512a\u5316<\/h2>\n<p>\u5728\u57f7\u884c\u8907\u96dc\u67e5\u8a62\u6642\uff0c\u6027\u80fd\u512a\u5316\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u65b9\u5f0f\u4f86\u512a\u5316\u67e5\u8a62\u6027\u80fd\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u7d22\u5f15\u4f86\u52a0\u901f\u67e5\u8a62\u3002<\/li>\n<li>\u907f\u514d\u4f7f\u7528SELECT *\uff0c\u800c\u662f\u9078\u64c7\u9700\u8981\u7684\u5217\u3002<\/li>\n<li>\u4f7f\u7528EXPLAIN PLAN\u4f86\u5206\u6790\u67e5\u8a62\u8a08\u5283\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-JCiGcexqtD\">\u7e3d\u7d50<\/h2>\n<p>\u57f7\u884cOracle SQL\u7684\u904e\u7a0b\u6d89\u53ca\u74b0\u5883\u6e96\u5099\u3001\u9023\u63a5\u6578\u64da\u5eab\u3001\u57f7\u884c\u67e5\u8a62\u3001\u4e8b\u52d9\u63a7\u5236\u53ca\u6027\u80fd\u512a\u5316\u7b49\u6b65\u9a5f\u3002\u638c\u63e1\u9019\u4e9b\u57fa\u672c\u64cd\u4f5c\u5f8c\uff0c\u60a8\u5c07\u80fd\u5920\u6709\u6548\u5730\u7ba1\u7406\u548c\u67e5\u8a62\u6578\u64da\u3002\u82e5\u60a8\u9700\u8981\u66f4\u9ad8\u6548\u7684\u6578\u64da\u7ba1\u7406\u89e3\u6c7a\u65b9\u6848\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a>\u4f86\u652f\u6301\u60a8\u7684Oracle\u6578\u64da\u5eab\u904b\u884c\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u696d\u52d9\u63d0\u4f9b\u7a69\u5b9a\u7684\u57fa\u790e\u8a2d\u65bd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u57f7\u884cOracle SQL\u7684\u5be6\u969b\u6b65\u9a5f\uff0c\u5305\u62ec\u9023\u63a5\u6578\u64da\u5eab\u3001\u64b0\u5beb\u67e5\u8a62\u53ca\u57f7\u884c\u547d\u4ee4\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\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-196394","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196394","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=196394"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196394\/revisions"}],"predecessor-version":[{"id":196395,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196394\/revisions\/196395"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=196394"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=196394"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=196394"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}