{"id":188440,"date":"2024-11-11T22:44:25","date_gmt":"2024-11-11T14:44:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/188440\/"},"modified":"2024-11-11T22:44:27","modified_gmt":"2024-11-11T14:44:27","slug":"%e6%8e%a2%e7%a9%b6%e5%b8%82%e9%9d%a2%e4%b8%bb%e6%b5%81%e6%95%b8%e6%93%9a%e5%ba%ab%e8%bb%9f%e4%bb%b6%ef%bc%8c%e4%ba%86%e8%a7%a3%e6%95%b8%e6%93%9a%e5%ba%ab%e8%83%8c%e5%be%8c%e7%9a%84%e5%a5%a7%e7%a7%98","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/188440\/","title":{"rendered":"\u63a2\u7a76\u5e02\u9762\u4e3b\u6d41\u6578\u64da\u5eab\u8edf\u4ef6\uff0c\u4e86\u89e3\u6578\u64da\u5eab\u80cc\u5f8c\u7684\u5967\u79d8 (\u5e02\u9762\u4e0a\u6578\u64da\u5eab\u662f\u4ec0\u9ebc\u8edf\u4ef6)"},"content":{"rendered":"

\u63a2\u7a76\u5e02\u9762\u4e3b\u6d41\u6578\u64da\u5eab\u8edf\u4ef6\uff0c\u4e86\u89e3\u6578\u64da\u5eab\u80cc\u5f8c\u7684\u5967\u79d8<\/h1>\n

\u5728\u7576\u4eca\u6578\u5b57\u5316\u7684\u6642\u4ee3\uff0c\u6578\u64da\u5eab\u5df2\u6210\u70ba\u5404\u884c\u5404\u696d\u4e0d\u53ef\u6216\u7f3a\u7684\u7d44\u6210\u90e8\u5206\u3002\u7121\u8ad6\u662f\u4f01\u696d\u7684\u5ba2\u6236\u8cc7\u6599\u3001\u96fb\u5b50\u5546\u52d9\u5e73\u53f0\u7684\u4ea4\u6613\u8a18\u9304\uff0c\u9084\u662f\u793e\u4ea4\u5a92\u9ad4\u7684\u7528\u6236\u4e92\u52d5\uff0c\u6578\u64da\u5eab\u90fd\u5728\u80cc\u5f8c\u9ed8\u9ed8\u5730\u652f\u6301\u8457\u9019\u4e9b\u64cd\u4f5c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5e02\u9762\u4e0a\u4e3b\u6d41\u7684\u6578\u64da\u5eab\u8edf\u4ef6\uff0c\u5e6b\u52a9\u8b80\u8005\u4e86\u89e3\u6578\u64da\u5eab\u7684\u904b\u4f5c\u539f\u7406\u53ca\u5176\u80cc\u5f8c\u7684\u5967\u79d8\u3002<\/p>\n

\u6578\u64da\u5eab\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

\u6578\u64da\u5eab\u662f\u4e00\u7a2e\u6709\u7d44\u7e54\u7684\u6578\u64da\u96c6\u5408\uff0c\u901a\u5e38\u4ee5\u96fb\u5b50\u65b9\u5f0f\u5b58\u5132\u5728\u8a08\u7b97\u6a5f\u7cfb\u7d71\u4e2d\u3002\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff08DBMS\uff09\u5247\u662f\u7528\u4f86\u5275\u5efa\u3001\u7ba1\u7406\u548c\u64cd\u4f5c\u6578\u64da\u5eab\u7684\u8edf\u4ef6\u3002\u6578\u64da\u5eab\u53ef\u4ee5\u5206\u70ba\u591a\u7a2e\u985e\u578b\uff0c\u5305\u62ec\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u3001\u975e\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u3001\u6587\u6a94\u6578\u64da\u5eab\u7b49\u3002<\/p>\n

\u4e3b\u6d41\u6578\u64da\u5eab\u8edf\u4ef6\u4ecb\u7d39<\/h2>\n

1. MySQL<\/h3>\n

MySQL \u662f\u4e00\u6b3e\u958b\u6e90\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7db2\u7ad9\u548c\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u5b83\u4ee5\u5176\u9ad8\u6548\u6027\u548c\u7a69\u5b9a\u6027\u800c\u805e\u540d\uff0c\u4e26\u4e14\u652f\u6301\u591a\u7a2e\u64cd\u4f5c\u7cfb\u7d71\u3002MySQL \u4f7f\u7528 SQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u4f86\u9032\u884c\u6578\u64da\u64cd\u4f5c\uff0c\u4e26\u4e14\u64c1\u6709\u5f37\u5927\u7684\u793e\u7fa4\u652f\u6301\u3002<\/p>\n

SELECT * FROM users WHERE age > 18;<\/code><\/pre>\n
2. PostgreSQL<\/h3>\n
PostgreSQL \u662f\u53e6\u4e00\u6b3e\u958b\u6e90\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\uff0c\u7279\u5225\u9069\u5408\u9700\u8981\u8907\u96dc\u67e5\u8a62\u548c\u6578\u64da\u5b8c\u6574\u6027\u7684\u61c9\u7528\u3002\u5b83\u652f\u6301\u591a\u7a2e\u6578\u64da\u985e\u578b\u548c\u64f4\u5c55\u529f\u80fd\uff0c\u4e26\u4e14\u5728\u8655\u7406\u5927\u6578\u64da\u96c6\u6642\u8868\u73fe\u51fa\u8272\u3002PostgreSQL \u7684 ACID\uff08\u539f\u5b50\u6027\u3001\u4e00\u81f4\u6027\u3001\u9694\u96e2\u6027\u3001\u6301\u4e45\u6027\uff09\u7279\u6027\u4f7f\u5176\u6210\u70ba\u4f01\u696d\u7d1a\u61c9\u7528\u7684\u7406\u60f3\u9078\u64c7\u3002<\/p>\n
SELECT * FROM orders WHERE order_date > '2023-01-01';<\/code><\/pre>\n
3. MongoDB<\/h3>\n
MongoDB \u662f\u4e00\u6b3e\u975e\u95dc\u4fc2\u578b\u6578\u64da\u5eab\uff0c\u5c08\u70ba\u8655\u7406\u5927\u91cf\u975e\u7d50\u69cb\u5316\u6578\u64da\u800c\u8a2d\u8a08\u3002\u5b83\u4f7f\u7528\u6587\u6a94\u5c0e\u5411\u7684\u6578\u64da\u6a21\u578b\uff0c\u5141\u8a31\u958b\u767c\u8005\u4ee5 JSON \u683c\u5f0f\u5b58\u5132\u6578\u64da\u3002MongoDB \u7684\u9748\u6d3b\u6027\u4f7f\u5176\u5728\u5927\u6578\u64da\u548c\u5be6\u6642\u61c9\u7528\u4e2d\u8d8a\u4f86\u8d8a\u53d7\u6b61\u8fce\u3002<\/p>\n
{ \"name\": \"John\", \"age\": 30, \"city\": \"Hong Kong\" }<\/code><\/pre>\n
4. Microsoft SQL Server<\/h3>\n
Microsoft SQL Server \u662f\u4e00\u6b3e\u5546\u696d\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u4f01\u696d\u74b0\u5883\u4e2d\u3002\u5b83\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u6578\u64da\u5206\u6790\u548c\u5831\u544a\u529f\u80fd\uff0c\u4e26\u4e14\u8207 Microsoft \u7684\u5176\u4ed6\u7522\u54c1\uff08\u5982 Excel \u548c Power BI\uff09\u7121\u7e2b\u96c6\u6210\u3002SQL Server \u7684\u5b89\u5168\u6027\u548c\u53ef\u64f4\u5c55\u6027\u4f7f\u5176\u6210\u70ba\u5927\u578b\u4f01\u696d\u7684\u9996\u9078\u3002<\/p>\n
SELECT COUNT(*) FROM employees WHERE department = 'Sales';<\/code><\/pre>\n
5. Oracle Database<\/h3>\n
Oracle Database \u662f\u4e00\u6b3e\u529f\u80fd\u5f37\u5927\u7684\u5546\u696d\u6578\u64da\u5eab\uff0c\u7279\u5225\u9069\u5408\u8655\u7406\u5927\u578b\u4f01\u696d\u7684\u8907\u96dc\u6578\u64da\u9700\u6c42\u3002\u5b83\u63d0\u4f9b\u4e86\u9ad8\u53ef\u7528\u6027\u548c\u707d\u96e3\u6062\u5fa9\u529f\u80fd\uff0c\u4e26\u4e14\u652f\u6301\u591a\u7a2e\u6578\u64da\u6a21\u578b\u3002Oracle \u7684\u6027\u80fd\u512a\u5316\u548c\u5b89\u5168\u6027\u4f7f\u5176\u5728\u91d1\u878d\u548c\u91ab\u7642\u7b49\u884c\u696d\u4e2d\u5f97\u5230\u5ee3\u6cdb\u61c9\u7528\u3002<\/p>\n
SELECT * FROM products WHERE price < 100;<\/code><\/pre>\n
\u6578\u64da\u5eab\u7684\u9078\u64c7\u8003\u91cf<\/h2>\n
\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u8edf\u4ef6\u6642\uff0c\u9700\u8981\u8003\u616e\u591a\u500b\u56e0\u7d20\uff0c\u5305\u62ec\u6578\u64da\u7684\u7d50\u69cb\u3001\u9810\u671f\u7684\u6578\u64da\u91cf\u3001\u67e5\u8a62\u7684\u8907\u96dc\u6027\u4ee5\u53ca\u7cfb\u7d71\u7684\u53ef\u64f4\u5c55\u6027\u3002\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u9069\u5408\u7d50\u69cb\u5316\u6578\u64da\uff0c\u800c\u975e\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u5247\u66f4\u9069\u5408\u975e\u7d50\u69cb\u5316\u6578\u64da\u3002\u4f01\u696d\u5728\u9078\u64c7\u6578\u64da\u5eab\u6642\uff0c\u61c9\u6839\u64da\u81ea\u8eab\u7684\u9700\u6c42\u548c\u9810\u7b97\u505a\u51fa\u660e\u667a\u7684\u6c7a\u7b56\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u6578\u64da\u5eab\u5728\u73fe\u4ee3\u5546\u696d\u548c\u6280\u8853\u74b0\u5883\u4e2d\u626e\u6f14\u8457\u81f3\u95dc\u91cd\u8981\u7684\u89d2\u8272\u3002\u4e86\u89e3\u5e02\u9762\u4e0a\u4e3b\u6d41\u7684\u6578\u64da\u5eab\u8edf\u4ef6\u53ca\u5176\u7279\u9ede\uff0c\u53ef\u4ee5\u5e6b\u52a9\u4f01\u696d\u9078\u64c7\u6700\u9069\u5408\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u7121\u8ad6\u662f\u9078\u64c7 VPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 \u9999\u6e2f\u4f3a\u670d\u5668<\/a>\uff0c\u90fd\u61c9\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9032\u884c\u8a55\u4f30\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u53ef\u7528\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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