{"id":188416,"date":"2024-11-11T22:32:10","date_gmt":"2024-11-11T14:32:10","guid":{"rendered":"https:\/\/server.hk\/cnblog\/188416\/"},"modified":"2024-11-11T22:32:11","modified_gmt":"2024-11-11T14:32:11","slug":"%e6%8e%a2%e7%a9%b6%e7%94%b2%e9%aa%a8%e6%96%87%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%84%aa%e9%bb%9e-%e7%94%b2%e9%aa%a8%e6%96%87%e6%95%b8%e6%93%9a%e5%ba%ab%e5%a5%bd%e5%9c%a8%e5%93%aa","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/188416\/","title":{"rendered":"\u63a2\u7a76\u7532\u9aa8\u6587\u6578\u64da\u5eab\u7684\u512a\u9ede (\u7532\u9aa8\u6587\u6578\u64da\u5eab\u597d\u5728\u54ea)"},"content":{"rendered":"<h1 id=\"%e6%8e%a2%e7%a9%b6%e7%94%b2%e9%aa%a8%e6%96%87%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%84%aa%e9%bb%9e-%e7%94%b2%e9%aa%a8%e6%96%87%e6%95%b8%e6%93%9a%e5%ba%ab%e5%a5%bd%e5%9c%a8%e5%93%aa-NsQgtSlGFD\">\u63a2\u7a76\u7532\u9aa8\u6587\u6578\u64da\u5eab\u7684\u512a\u9ede (\u7532\u9aa8\u6587\u6578\u64da\u5eab\u597d\u5728\u54ea)<\/h1>\n<p>\u7532\u9aa8\u6587\u6578\u64da\u5eab\uff08Oracle Database\uff09\u662f\u5168\u7403\u6700\u53d7\u6b61\u8fce\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e4b\u4e00\u3002\u81ea1979\u5e74\u9996\u6b21\u63a8\u51fa\u4ee5\u4f86\uff0c\u7532\u9aa8\u6587\u6578\u64da\u5eab\u4e0d\u65b7\u6f14\u9032\uff0c\u4e26\u5728\u5404\u884c\u5404\u696d\u4e2d\u5ee3\u6cdb\u61c9\u7528\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u7532\u9aa8\u6587\u6578\u64da\u5eab\u7684\u4e3b\u8981\u512a\u9ede\uff0c\u5e6b\u52a9\u8b80\u8005\u4e86\u89e3\u5176\u5728\u6578\u64da\u7ba1\u7406\u4e2d\u7684\u91cd\u8981\u6027\u3002<\/p>\n<h2 id=\"1-%e9%ab%98%e5%ba%a6%e7%9a%84%e5%8f%af%e6%93%b4%e5%b1%95%e6%80%a7-NsQgtSlGFD\">1. \u9ad8\u5ea6\u7684\u53ef\u64f4\u5c55\u6027<\/h2>\n<p>\u7532\u9aa8\u6587\u6578\u64da\u5eab\u7684\u53ef\u64f4\u5c55\u6027\u662f\u5176\u4e00\u5927\u512a\u52e2\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u4f01\u696d\u9084\u662f\u5927\u578b\u4f01\u696d\uff0c\u7532\u9aa8\u6587\u6578\u64da\u5eab\u90fd\u80fd\u6839\u64da\u9700\u6c42\u9032\u884c\u64f4\u5c55\u3002\u7528\u6236\u53ef\u4ee5\u6839\u64da\u696d\u52d9\u589e\u9577\u7684\u9700\u8981\uff0c\u8f15\u9b06\u5730\u589e\u52a0\u6578\u64da\u5eab\u7684\u5bb9\u91cf\u548c\u6027\u80fd\u3002\u9019\u7a2e\u9748\u6d3b\u6027\u4f7f\u5f97\u4f01\u696d\u80fd\u5920\u5728\u4e0d\u5f71\u97ff\u73fe\u6709\u7cfb\u7d71\u7684\u60c5\u6cc1\u4e0b\uff0c\u5feb\u901f\u9069\u61c9\u5e02\u5834\u8b8a\u5316\u3002<\/p>\n<h2 id=\"2-%e5%bc%b7%e5%a4%a7%e7%9a%84%e5%ae%89%e5%85%a8%e6%80%a7-NsQgtSlGFD\">2. \u5f37\u5927\u7684\u5b89\u5168\u6027<\/h2>\n<p>\u5728\u7576\u4eca\u6578\u64da\u6d29\u9732\u4e8b\u4ef6\u983b\u767c\u7684\u74b0\u5883\u4e2d\uff0c\u6578\u64da\u5b89\u5168\u6027\u986f\u5f97\u5c24\u70ba\u91cd\u8981\u3002\u7532\u9aa8\u6587\u6578\u64da\u5eab\u63d0\u4f9b\u591a\u5c64\u6b21\u7684\u5b89\u5168\u9632\u8b77\uff0c\u5305\u62ec\u7528\u6236\u8eab\u4efd\u9a57\u8b49\u3001\u6578\u64da\u52a0\u5bc6\u548c\u5be9\u8a08\u529f\u80fd\u3002\u9019\u4e9b\u529f\u80fd\u80fd\u6709\u6548\u9632\u6b62\u672a\u7d93\u6388\u6b0a\u7684\u8a2a\u554f\uff0c\u4fdd\u8b77\u4f01\u696d\u7684\u654f\u611f\u6578\u64da\u3002<\/p>\n<h3 id=\"%e6%95%b8%e6%93%9a%e5%8a%a0%e5%af%86%e7%a4%ba%e4%be%8b-NsQgtSlGFD\">\u6578\u64da\u52a0\u5bc6\u793a\u4f8b<\/h3>\n<pre><code>ALTER SYSTEM SET ENCRYPTION WALLET OPEN IDENTIFIED BY \"your_password\";<\/code><\/pre>\n<h2 id=\"3-%e9%ab%98%e6%95%88%e7%9a%84%e6%80%a7%e8%83%bd-NsQgtSlGFD\">3. \u9ad8\u6548\u7684\u6027\u80fd<\/h2>\n<p>\u7532\u9aa8\u6587\u6578\u64da\u5eab\u5728\u6027\u80fd\u65b9\u9762\u8868\u73fe\u51fa\u8272\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u3002\u5176\u5148\u9032\u7684\u67e5\u8a62\u512a\u5316\u5668\u80fd\u5920\u81ea\u52d5\u9078\u64c7\u6700\u4f73\u7684\u57f7\u884c\u8a08\u5283\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002\u6b64\u5916\uff0c\u7532\u9aa8\u6587\u6578\u64da\u5eab\u9084\u652f\u6301\u4e26\u884c\u8655\u7406\uff0c\u80fd\u5920\u540c\u6642\u8655\u7406\u591a\u500b\u8acb\u6c42\uff0c\u9032\u4e00\u6b65\u63d0\u5347\u7cfb\u7d71\u7684\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n<h3 id=\"%e6%9f%a5%e8%a9%a2%e5%84%aa%e5%8c%96%e7%a4%ba%e4%be%8b-NsQgtSlGFD\">\u67e5\u8a62\u512a\u5316\u793a\u4f8b<\/h3>\n<pre><code>SELECT \/*+ FIRST_ROWS(10) *\/ * FROM employees WHERE department_id = 10;<\/code><\/pre>\n<h2 id=\"4-%e5%a4%9a%e6%a8%a3%e7%9a%84%e6%95%b8%e6%93%9a%e6%a8%a1%e5%9e%8b%e6%94%af%e6%8c%81-NsQgtSlGFD\">4. \u591a\u6a23\u7684\u6578\u64da\u6a21\u578b\u652f\u6301<\/h2>\n<p>\u7532\u9aa8\u6587\u6578\u64da\u5eab\u4e0d\u50c5\u652f\u6301\u50b3\u7d71\u7684\u95dc\u4fc2\u578b\u6578\u64da\u6a21\u578b\uff0c\u9084\u652f\u6301\u975e\u95dc\u4fc2\u578b\u6578\u64da\u6a21\u578b\uff0c\u5982JSON\u548cXML\u3002\u9019\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u9748\u6d3b\u5730\u9078\u64c7\u6700\u9069\u5408\u5176\u61c9\u7528\u7684\u6578\u64da\u5b58\u5132\u65b9\u5f0f\uff0c\u5f9e\u800c\u63d0\u9ad8\u958b\u767c\u6548\u7387\u3002<\/p>\n<h3 id=\"json%e6%95%b8%e6%93%9a%e7%a4%ba%e4%be%8b-NsQgtSlGFD\">JSON\u6578\u64da\u793a\u4f8b<\/h3>\n<pre><code>INSERT INTO employees (id, details) VALUES (1, '{\"name\": \"John\", \"age\": 30}');<\/code><\/pre>\n<h2 id=\"5-%e5%bc%b7%e5%a4%a7%e7%9a%84%e7%a4%be%e7%be%a4%e5%92%8c%e6%94%af%e6%8c%81-NsQgtSlGFD\">5. \u5f37\u5927\u7684\u793e\u7fa4\u548c\u652f\u6301<\/h2>\n<p>\u7532\u9aa8\u6587\u6578\u64da\u5eab\u64c1\u6709\u9f90\u5927\u7684\u7528\u6236\u793e\u7fa4\u548c\u8c50\u5bcc\u7684\u8cc7\u6e90\u3002\u7528\u6236\u53ef\u4ee5\u8f15\u9b06\u627e\u5230\u5404\u7a2e\u6559\u7a0b\u3001\u8ad6\u58c7\u548c\u6280\u8853\u652f\u6301\uff0c\u9019\u5c0d\u65bc\u89e3\u6c7a\u554f\u984c\u548c\u63d0\u5347\u6280\u80fd\u975e\u5e38\u6709\u5e6b\u52a9\u3002\u6b64\u5916\uff0c\u7532\u9aa8\u6587\u516c\u53f8\u672c\u8eab\u4e5f\u63d0\u4f9b\u5c08\u696d\u7684\u6280\u8853\u652f\u6301\uff0c\u78ba\u4fdd\u7528\u6236\u5728\u4f7f\u7528\u904e\u7a0b\u4e2d\u80fd\u5920\u7372\u5f97\u53ca\u6642\u7684\u5e6b\u52a9\u3002<\/p>\n<h2 id=\"6-%e5%85%88%e9%80%b2%e7%9a%84%e6%95%b8%e6%93%9a%e5%88%86%e6%9e%90%e5%8a%9f%e8%83%bd-NsQgtSlGFD\">6. \u5148\u9032\u7684\u6578\u64da\u5206\u6790\u529f\u80fd<\/h2>\n<p>\u7532\u9aa8\u6587\u6578\u64da\u5eab\u5167\u5efa\u4e86\u5f37\u5927\u7684\u6578\u64da\u5206\u6790\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u4f01\u696d\u5f9e\u6578\u64da\u4e2d\u63d0\u53d6\u6709\u50f9\u503c\u7684\u898b\u89e3\u3002\u9019\u4e9b\u5de5\u5177\u652f\u6301\u5be6\u6642\u6578\u64da\u5206\u6790\uff0c\u4e26\u80fd\u5920\u751f\u6210\u5404\u7a2e\u5831\u544a\uff0c\u5e6b\u52a9\u4f01\u696d\u505a\u51fa\u66f4\u660e\u667a\u7684\u6c7a\u7b56\u3002<\/p>\n<h3 id=\"%e6%95%b8%e6%93%9a%e5%88%86%e6%9e%90%e7%a4%ba%e4%be%8b-NsQgtSlGFD\">\u6578\u64da\u5206\u6790\u793a\u4f8b<\/h3>\n<pre><code>SELECT department_id, COUNT(*) FROM employees GROUP BY department_id;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-NsQgtSlGFD\">\u7e3d\u7d50<\/h2>\n<p>\u7e3d\u7684\u4f86\u8aaa\uff0c\u7532\u9aa8\u6587\u6578\u64da\u5eab\u4ee5\u5176\u9ad8\u5ea6\u7684\u53ef\u64f4\u5c55\u6027\u3001\u5f37\u5927\u7684\u5b89\u5168\u6027\u3001\u9ad8\u6548\u7684\u6027\u80fd\u3001\u591a\u6a23\u7684\u6578\u64da\u6a21\u578b\u652f\u6301\u3001\u5f37\u5927\u7684\u793e\u7fa4\u548c\u652f\u6301\u4ee5\u53ca\u5148\u9032\u7684\u6578\u64da\u5206\u6790\u529f\u80fd\uff0c\u6210\u70ba\u4f01\u696d\u6578\u64da\u7ba1\u7406\u7684\u7406\u60f3\u9078\u64c7\u3002\u5c0d\u65bc\u5c0b\u6c42\u7a69\u5b9a\u548c\u9ad8\u6548\u6578\u64da\u89e3\u6c7a\u65b9\u6848\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u7532\u9aa8\u6587\u6578\u64da\u5eab\u7121\u7591\u662f\u4e00\u500b\u503c\u5f97\u8003\u616e\u7684\u9078\u64c7\u3002\u5982\u679c\u60a8\u5c0d\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u6216\u5176\u4ed6 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u89e3\u6c7a\u65b9\u6848\u611f\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u7532\u9aa8\u6587\u6578\u64da\u5eab\u7684\u512a\u9ede\uff0c\u4e86\u89e3\u5176\u5728\u6b77\u53f2\u7814\u7a76\u3001\u6578\u64da\u5b58\u53d6\u548c\u6587\u5316\u4fdd\u5b58\u65b9\u9762\u7684\u7368\u7279\u50f9\u503c\u8207\u8ca2\u737b\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-188416","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188416","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=188416"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188416\/revisions"}],"predecessor-version":[{"id":188417,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188416\/revisions\/188417"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=188416"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=188416"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=188416"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}