{"id":96250,"date":"2024-10-20T07:51:15","date_gmt":"2024-10-19T23:51:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/96250\/"},"modified":"2024-10-20T07:51:16","modified_gmt":"2024-10-19T23:51:16","slug":"oracle%e4%b8%ad%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e5%92%8csql%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%84%aa%e5%8c%96%e9%87%8d%e9%bb%9e","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/96250\/","title":{"rendered":"Oracle\u4e2d\u5b58\u5132\u904e\u7a0b\u548cSql\u8a9e\u53e5\u7684\u512a\u5316\u91cd\u9ede"},"content":{"rendered":"<h1 id=\"oracle%e4%b8%ad%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e5%92%8csql%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%84%aa%e5%8c%96%e9%87%8d%e9%bb%9e-mFDXKvoaSh\">Oracle\u4e2d\u5b58\u5132\u904e\u7a0b\u548cSQL\u8a9e\u53e5\u7684\u512a\u5316\u91cd\u9ede<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u6027\u80fd\u512a\u5316\u662f\u78ba\u4fdd\u61c9\u7528\u7a0b\u5e8f\u9ad8\u6548\u904b\u884c\u7684\u95dc\u9375\u3002Oracle\u6578\u64da\u5eab\u4f5c\u70ba\u4e00\u500b\u5f37\u5927\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u5de5\u5177\u548c\u6280\u8853\u4f86\u512a\u5316\u5b58\u5132\u904e\u7a0b\u548cSQL\u8a9e\u53e5\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5728Oracle\u4e2d\u9032\u884c\u5b58\u5132\u904e\u7a0b\u548cSQL\u8a9e\u53e5\u512a\u5316\u7684\u5e7e\u500b\u91cd\u9ede\u3002<\/p>\n<h2 id=\"1-%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e7%9a%84%e5%84%aa%e5%8c%96-mFDXKvoaSh\">1. \u5b58\u5132\u904e\u7a0b\u7684\u512a\u5316<\/h2>\n<p>\u5b58\u5132\u904e\u7a0b\u662f\u4e00\u7d44\u9810\u7de8\u8b6f\u7684SQL\u8a9e\u53e5\uff0c\u80fd\u5920\u5728\u6578\u64da\u5eab\u4e2d\u57f7\u884c\u7279\u5b9a\u7684\u4efb\u52d9\u3002\u512a\u5316\u5b58\u5132\u904e\u7a0b\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u512a\u5316\u5b58\u5132\u904e\u7a0b\u7684\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u5408\u9069\u7684\u6578\u64da\u985e\u578b\uff1a<\/strong>\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u53ef\u4ee5\u6e1b\u5c11\u5b58\u5132\u7a7a\u9593\u548c\u63d0\u9ad8\u6027\u80fd\u3002\u4f8b\u5982\uff0c\u4f7f\u7528VARCHAR2\u800c\u4e0d\u662fCHAR\u4f86\u5b58\u5132\u53ef\u8b8a\u9577\u5ea6\u7684\u5b57\u7b26\u4e32\u3002<\/li>\n<li><strong>\u907f\u514d\u4f7f\u7528SELECT *\uff1a<\/strong>\u5728\u67e5\u8a62\u4e2d\u660e\u78ba\u6307\u5b9a\u6240\u9700\u7684\u5217\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u50b3\u8f38\u3002<\/li>\n<li><strong>\u4f7f\u7528\u6e38\u6a19\uff1a<\/strong>\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\uff0c\u4f7f\u7528\u6e38\u6a19\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u5167\u5b58\uff0c\u907f\u514d\u4e00\u6b21\u6027\u52a0\u8f09\u6240\u6709\u6578\u64da\u3002<\/li>\n<li><strong>\u6e1b\u5c11\u4e0a\u4e0b\u6587\u5207\u63db\uff1a<\/strong>\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\uff0c\u76e1\u91cf\u6e1b\u5c11PL\/SQL\u548cSQL\u4e4b\u9593\u7684\u5207\u63db\uff0c\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u57f7\u884c\u6548\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"2-sql%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%84%aa%e5%8c%96-mFDXKvoaSh\">2. SQL\u8a9e\u53e5\u7684\u512a\u5316<\/h2>\n<p>SQL\u8a9e\u53e5\u7684\u512a\u5316\u662f\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u7684\u53e6\u4e00\u500b\u91cd\u8981\u65b9\u9762\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u512a\u5316SQL\u8a9e\u53e5\u7684\u6280\u5de7\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u7d22\u5f15\uff1a<\/strong>\u70ba\u7d93\u5e38\u67e5\u8a62\u7684\u5217\u5275\u5efa\u7d22\u5f15\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u904e\u591a\u7684\u7d22\u5f15\u6703\u5f71\u97ff\u63d2\u5165\u548c\u66f4\u65b0\u64cd\u4f5c\u7684\u6027\u80fd\u3002<\/li>\n<li><strong>\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u8a08\u7b97\uff1a<\/strong>\u5728WHERE\u5b50\u53e5\u4e2d\u907f\u514d\u5c0d\u5217\u9032\u884c\u8a08\u7b97\uff0c\u9019\u6a23\u53ef\u4ee5\u4f7f\u7d22\u5f15\u66f4\u6709\u6548\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u5217\u7684\u539f\u59cb\u503c\u800c\u4e0d\u662f\u8a08\u7b97\u7d50\u679c\u3002<\/li>\n<li><strong>\u4f7f\u7528EXPLAIN PLAN\uff1a<\/strong>\u901a\u904e\u4f7f\u7528EXPLAIN PLAN\u547d\u4ee4\uff0c\u53ef\u4ee5\u67e5\u770bSQL\u8a9e\u53e5\u7684\u57f7\u884c\u8a08\u5283\uff0c\u5f9e\u800c\u627e\u51fa\u6f5b\u5728\u7684\u6027\u80fd\u74f6\u9838\u3002<\/li>\n<li><strong>\u5408\u4f75\u67e5\u8a62\uff1a<\/strong>\u5c07\u591a\u500b\u67e5\u8a62\u5408\u4f75\u70ba\u4e00\u500b\u67e5\u8a62\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u5eab\u7684\u8ca0\u64d4\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u3002<\/li>\n<\/ul>\n<h2 id=\"3-%e7%9b%a3%e6%8e%a7%e5%92%8c%e8%aa%bf%e6%95%b4-mFDXKvoaSh\">3. \u76e3\u63a7\u548c\u8abf\u6574<\/h2>\n<p>\u512a\u5316\u662f\u4e00\u500b\u6301\u7e8c\u7684\u904e\u7a0b\uff0c\u5b9a\u671f\u76e3\u63a7\u6578\u64da\u5eab\u6027\u80fd\u4e26\u9032\u884c\u8abf\u6574\u662f\u5fc5\u8981\u7684\u3002Oracle\u63d0\u4f9b\u4e86\u591a\u7a2e\u5de5\u5177\u4f86\u5e6b\u52a9\u76e3\u63a7\u6027\u80fd\uff0c\u4f8b\u5982Oracle Enterprise Manager\u548cAutomatic Workload Repository (AWR)\u3002\u9019\u4e9b\u5de5\u5177\u53ef\u4ee5\u5e6b\u52a9\u8b58\u5225\u6027\u80fd\u554f\u984c\u4e26\u63d0\u4f9b\u5efa\u8b70\u3002<\/p>\n<h2 id=\"4-%e5%af%a6%e4%be%8b%e5%88%86%e6%9e%90-mFDXKvoaSh\">4. \u5be6\u4f8b\u5206\u6790<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u5b58\u5132\u904e\u7a0b\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u9032\u884c\u512a\u5316\uff1a<\/p>\n<pre><code>\nCREATE OR REPLACE PROCEDURE GetEmployeeDetails (emp_id IN NUMBER) IS\n    emp_name VARCHAR2(100);\nBEGIN\n    SELECT name INTO emp_name FROM employees WHERE id = emp_id;\n    DBMS_OUTPUT.PUT_LINE('Employee Name: ' || emp_name);\nEND;\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e86\u660e\u78ba\u7684\u5217\u9078\u64c7\uff0c\u4e26\u4e14\u907f\u514d\u4e86\u4e0d\u5fc5\u8981\u7684\u8a08\u7b97\u3002\u9019\u6a23\u7684\u8a2d\u8a08\u53ef\u4ee5\u63d0\u9ad8\u5b58\u5132\u904e\u7a0b\u7684\u57f7\u884c\u6548\u7387\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-mFDXKvoaSh\">\u7e3d\u7d50<\/h2>\n<p>\u5728Oracle\u4e2d\uff0c\u5b58\u5132\u904e\u7a0b\u548cSQL\u8a9e\u53e5\u7684\u512a\u5316\u662f\u63d0\u9ad8\u6578\u64da\u5eab\u6027\u80fd\u7684\u95dc\u9375\u3002\u901a\u904e\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u3001\u4f7f\u7528\u7d22\u5f15\u3001\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u8a08\u7b97\u4ee5\u53ca\u5b9a\u671f\u76e3\u63a7\u6027\u80fd\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u5347\u6578\u64da\u5eab\u7684\u6548\u7387\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u4f01\u696d\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u5728\u7a69\u5b9a\u7684\u74b0\u5883\u4e2d\u904b\u884c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Oracle\u4e2d\u5b58\u5132\u904e\u7a0b\u548cSQL\u8a9e\u53e5\u7684\u512a\u5316\u91cd\u9ede\uff0c\u63d0\u9ad8\u6027\u80fd\u3001\u6e1b\u5c11\u8cc7\u6e90\u6d88\u8017\uff0c\u5be6\u73fe\u9ad8\u6548\u6578\u64da\u8655\u7406\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-96250","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96250","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=96250"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96250\/revisions"}],"predecessor-version":[{"id":96251,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96250\/revisions\/96251"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=96250"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=96250"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=96250"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}