{"id":44310,"date":"2024-12-01T14:39:46","date_gmt":"2024-12-01T06:39:46","guid":{"rendered":"https:\/\/fwq.ai\/blog\/44310\/"},"modified":"2024-12-01T14:39:46","modified_gmt":"2024-12-01T06:39:46","slug":"mysql%e4%ba%8b%e5%8a%a1%e5%a4%84%e7%90%86%ef%bc%9a%e8%87%aa%e5%8a%a8%e6%8f%90%e4%ba%a4%e4%b8%8e%e6%89%8b%e5%8a%a8%e6%8f%90%e4%ba%a4%e7%9a%84%e5%8c%ba%e5%88%ab","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/44310\/","title":{"rendered":"MySQL\u4e8b\u52a1\u5904\u7406\uff1a\u81ea\u52a8\u63d0\u4ea4\u4e0e\u624b\u52a8\u63d0\u4ea4\u7684\u533a\u522b"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>MySQL\u4e8b\u52a1\u5904\u7406\uff1a\u81ea\u52a8\u63d0\u4ea4\u4e0e\u624b\u52a8\u63d0\u4ea4\u7684\u533a\u522b<\/h1>\n<p>\u5728 MySQL \u4e2d\uff0c\u4e8b\u52a1\u5904\u7406\u673a\u5236\u786e\u4fdd\u4e86\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u3002\u4e8b\u52a1\u53ef\u4ee5\u5206\u4e3a\u81ea\u52a8\u63d0\u4ea4\u548c\u624b\u52a8\u63d0\u4ea4\u4e24\u79cd\u6a21\u5f0f\u3002\u81ea\u52a8\u63d0\u4ea4\u6a21\u5f0f\u4e0b\uff0c\u6bcf\u6761 SQL \u8bed\u53e5\u6267\u884c\u540e\u90fd\u4f1a\u81ea\u52a8\u63d0\u4ea4\uff0c\u4fdd\u8bc1\u4e86\u6570\u636e\u4fee\u6539\u7684\u5b9e\u65f6\u751f\u6548\u3002\u800c\u624b\u52a8\u63d0\u4ea4\u6a21\u5f0f\u5219\u5141\u8bb8\u7528\u6237\u5728\u6267\u884c\u591a\u6761 SQL \u8bed\u53e5\u540e\uff0c\u901a\u8fc7\u660e\u786e\u7684\u63d0\u4ea4\u6216\u56de\u6eda\u64cd\u4f5c\u6765\u63a7\u5236\u4e8b\u52a1\u7684\u63d0\u4ea4\u6216\u64a4\u9500\uff0c\u4ece\u800c\u4e3a\u6570\u636e\u7684\u4e00\u81f4\u6027\u63d0\u4f9b\u4e86\u66f4\u7cbe\u7ec6\u7684\u63a7\u5236\u3002<\/p>\n<p>MySQL\u4e8b\u52a1\u5904\u7406\uff1a\u81ea\u52a8\u63d0\u4ea4\u4e0e\u624b\u52a8\u63d0\u4ea4\u7684\u533a\u522b<\/p>\n<p>\u5728MySQL\u6570\u636e\u5e93\u4e2d\uff0c\u4e8b\u52a1\u662f\u4e00\u7ec4SQL\u8bed\u53e5\u7684\u96c6\u5408\uff0c\u8981\u4e48\u5168\u90e8\u6267\u884c\u6210\u529f\uff0c\u8981\u4e48\u5168\u90e8\u6267\u884c\u5931\u8d25\uff0c\u4fdd\u8bc1\u4e86\u6570\u636e\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u5728MySQL\u4e2d\uff0c\u4e8b\u52a1\u53ef\u4ee5\u5206\u4e3a\u81ea\u52a8\u63d0\u4ea4\u548c\u624b\u52a8\u63d0\u4ea4\uff0c\u5176\u533a\u522b\u5728\u4e8e\u4e8b\u52a1\u63d0\u4ea4\u7684\u65f6\u673a\u4ee5\u53ca\u5bf9\u4e8b\u52a1\u7684\u63a7\u5236\u8303\u56f4\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u81ea\u52a8\u63d0\u4ea4\u548c\u624b\u52a8\u63d0\u4ea4\u7684\u533a\u522b\uff0c\u5e76\u7ed9\u51fa\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u6765\u8bf4\u660e\u3002<\/p>\n<p>\u4e00\u3001\u81ea\u52a8\u63d0\u4ea4<br \/>\u5728MySQL\u4e2d\uff0c\u5982\u679c\u6ca1\u6709\u663e\u793a\u5730\u542f\u7528\u4e8b\u52a1\u5904\u7406\uff0c\u6bcf\u4e2aSQL\u8bed\u53e5\u5c06\u88ab\u81ea\u52a8\u63d0\u4ea4\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u6bcf\u6761SQL\u8bed\u53e5\u6267\u884c\u5b8c\u6210\u540e\u90fd\u4f1a\u81ea\u52a8\u63d0\u4ea4\u4e8b\u52a1\uff0c\u6570\u636e\u7684\u4fee\u6539\u5373\u523b\u751f\u6548\uff0c\u8fd9\u6837\u5c31\u65e0\u6cd5\u4fdd\u8bc1\u6570\u636e\u7684\u4e00\u81f4\u6027\u3002<br \/>\u5728MySQL\u9ed8\u8ba4\u7684\u60c5\u51b5\u4e0b\uff0c\u4f1a\u81ea\u52a8\u542f\u7528\u81ea\u52a8\u63d0\u4ea4\u529f\u80fd\u3002\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6eautocommit\u53c2\u6570\u6765\u63a7\u5236\u81ea\u52a8\u63d0\u4ea4\u7684\u884c\u4e3a\uff0c\u5f53autocommit\u4e3a1\u65f6\uff0c\u8868\u793a\u542f\u7528\u81ea\u52a8\u63d0\u4ea4\uff1b\u5f53autocommit\u4e3a0\u65f6\uff0c\u8868\u793a\u7981\u7528\u81ea\u52a8\u63d0\u4ea4\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u6f14\u793a\u4e86\u81ea\u52a8\u63d0\u4ea4\u7684\u884c\u4e3a\uff1a<\/p>\n<pre>CREATE TABLE example_table (\n    id INT PRIMARY KEY,\n    name VARCHAR(50)\n);\n\nINSERT INTO example_table VALUES (1, 'Alice');\nINSERT INTO example_table VALUES (2, 'Bob');\n\nSELECT * FROM example_table;<\/pre>\n<p>\u4ee5\u4e0a\u4ee3\u7801\u6267\u884c\u540e\uff0c\u6570\u636e\u4f1a\u88ab\u81ea\u52a8\u63d0\u4ea4\uff0c\u6570\u636e\u7684\u4fee\u6539\u5373\u523b\u751f\u6548\u3002<\/p>\n<p>\u4e8c\u3001\u624b\u52a8\u63d0\u4ea4<br \/>\u624b\u52a8\u63d0\u4ea4\u662f\u6307\u5728\u4e00\u4e2a\u4e8b\u52a1\u5185\u6267\u884c\u591a\u4e2aSQL\u8bed\u53e5\uff0c\u7136\u540e\u5728\u5408\u9002\u7684\u65f6\u673a\u624b\u52a8\u63d0\u4ea4\u4e8b\u52a1\uff0c\u4ee5\u786e\u4fdd\u6570\u636e\u7684\u4e00\u81f4\u6027\u3002\u5728MySQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528BEGIN\u3001COMMIT\u548cROLLBACK\u8bed\u53e5\u6765\u63a7\u5236\u4e8b\u52a1\u7684\u63d0\u4ea4\u548c\u56de\u6eda\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff0c\u6f14\u793a\u4e86\u624b\u52a8\u63d0\u4ea4\u7684\u884c\u4e3a\uff1a<\/p>\n<pre>SET autocommit = 0; -- \u5173\u95ed\u81ea\u52a8\u63d0\u4ea4\n\nBEGIN; -- \u5f00\u59cb\u4e8b\u52a1\n\nUPDATE example_table SET name = 'Alice Smith' WHERE id = 1;\nDELETE FROM example_table WHERE id = 2;\n\nSELECT * FROM example_table; -- \u8fd9\u65f6\u6570\u636e\u8fd8\u672a\u63d0\u4ea4\uff0c\u67e5\u8be2\u7ed3\u679c\u4e0d\u5305\u542b\u6700\u65b0\u7684\u4fee\u6539\n\nCOMMIT; -- \u63d0\u4ea4\u4e8b\u52a1\n\nSELECT * FROM example_table; -- \u8fd9\u65f6\u6570\u636e\u5df2\u63d0\u4ea4\uff0c\u67e5\u8be2\u7ed3\u679c\u5305\u542b\u6700\u65b0\u7684\u4fee\u6539<\/pre>\n<p>\u4ee5\u4e0a\u4ee3\u7801\u4e2d\uff0c\u624b\u52a8\u63d0\u4ea4\u901a\u8fc7\u8bbe\u7f6eautocommit\u4e3a0\u6765\u7981\u7528\u81ea\u52a8\u63d0\u4ea4\uff0c\u7136\u540e\u4f7f\u7528BEGIN\u5f00\u59cb\u4e8b\u52a1\uff0c\u6267\u884c\u591a\u6761SQL\u8bed\u53e5\uff0c\u6700\u540e\u4f7f\u7528COMMIT\u63d0\u4ea4\u4e8b\u52a1\u3002\u5728\u624b\u52a8\u63d0\u4ea4\u7684\u8fc7\u7a0b\u4e2d\uff0c\u53ef\u4ee5\u968f\u65f6\u4f7f\u7528ROLLBACK\u6765\u56de\u6eda\u4e8b\u52a1\uff0c\u64a4\u9500\u4e4b\u524d\u7684\u4fee\u6539\u3002\u8fd9\u6837\u53ef\u4ee5\u786e\u4fdd\u6570\u636e\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002<\/p>\n<p>\u603b\u7ed3\uff1a<br \/>\u81ea\u52a8\u63d0\u4ea4\u548c\u624b\u52a8\u63d0\u4ea4\u662fMySQL\u4e2d\u4e8b\u52a1\u5904\u7406\u7684\u4e24\u79cd\u65b9\u5f0f\uff0c\u533a\u522b\u5728\u4e8e\u4e8b\u52a1\u63d0\u4ea4\u7684\u65f6\u673a\u548c\u63a7\u5236\u65b9\u5f0f\u3002\u81ea\u52a8\u63d0\u4ea4\u4f1a\u5728\u6bcf\u6761SQL\u8bed\u53e5\u6267\u884c\u540e\u81ea\u52a8\u63d0\u4ea4\u4e8b\u52a1\uff0c\u800c\u624b\u52a8\u63d0\u4ea4\u9700\u8981\u663e\u5f0f\u5730\u5f00\u59cb\u548c\u7ed3\u675f\u4e8b\u52a1\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u6839\u636e\u9700\u8981\u9009\u62e9\u5408\u9002\u7684\u63d0\u4ea4\u65b9\u5f0f\u6765\u4fdd\u8bc1\u6570\u636e\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002<\/p>\n<p>\u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300aMySQL\u4e8b\u52a1\u5904\u7406\uff1a\u81ea\u52a8\u63d0\u4ea4\u4e0e\u624b\u52a8\u63d0\u4ea4\u7684\u533a\u522b\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~\u7c73\u4e91\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03\u6570\u636e\u5e93\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>MySQL\u4e8b\u52a1\u5904\u7406\uff1a\u81ea\u52a8\u63d0\u4ea4\u4e0e\u624b\u52a8\u63d0\u4ea4\u7684\u533a\u522b \u5728 MySQL \u4e2d\uff0c\u4e8b\u52a1\u5904\u7406\u673a\u5236\u786e\u4fdd\u4e86\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u3002\u4e8b\u52a1\u53ef\u4ee5\u5206\u4e3a\u81ea\u52a8\u63d0\u4ea4\u548c\u624b\u52a8\u63d0\u4ea4\u4e24\u79cd\u6a21\u5f0f\u3002\u81ea\u52a8\u63d0\u4ea4\u6a21\u5f0f\u4e0b\uff0c\u6bcf\u6761 SQL \u8bed\u53e5\u6267\u884c\u540e\u90fd\u4f1a\u81ea\u52a8\u63d0\u4ea4\uff0c\u4fdd\u8bc1\u4e86\u6570\u636e\u4fee\u6539\u7684\u5b9e\u65f6\u751f\u6548\u3002\u800c\u624b\u52a8\u63d0\u4ea4\u6a21\u5f0f\u5219\u5141\u8bb8\u7528\u6237\u5728\u6267\u884c\u591a\u6761 SQL \u8bed\u53e5\u540e\uff0c\u901a\u8fc7\u660e\u786e\u7684\u63d0\u4ea4\u6216\u56de\u6eda\u64cd\u4f5c\u6765\u63a7\u5236\u4e8b\u52a1\u7684\u63d0\u4ea4\u6216\u64a4\u9500\uff0c\u4ece\u800c\u4e3a\u6570\u636e\u7684\u4e00\u81f4\u6027\u63d0\u4f9b\u4e86\u66f4\u7cbe\u7ec6\u7684\u63a7\u5236\u3002 MySQL\u4e8b\u52a1\u5904\u7406\uff1a\u81ea\u52a8\u63d0\u4ea4\u4e0e\u624b\u52a8\u63d0\u4ea4\u7684\u533a\u522b \u5728MySQL\u6570\u636e\u5e93\u4e2d\uff0c\u4e8b\u52a1\u662f\u4e00\u7ec4SQL\u8bed\u53e5\u7684\u96c6\u5408\uff0c\u8981\u4e48\u5168\u90e8\u6267\u884c\u6210\u529f\uff0c\u8981\u4e48\u5168\u90e8\u6267\u884c\u5931\u8d25\uff0c\u4fdd\u8bc1\u4e86\u6570\u636e\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u5728MySQL\u4e2d\uff0c\u4e8b\u52a1\u53ef\u4ee5\u5206\u4e3a\u81ea\u52a8\u63d0\u4ea4\u548c\u624b\u52a8\u63d0\u4ea4\uff0c\u5176\u533a\u522b\u5728\u4e8e\u4e8b\u52a1\u63d0\u4ea4\u7684\u65f6\u673a\u4ee5\u53ca\u5bf9\u4e8b\u52a1\u7684\u63a7\u5236\u8303\u56f4\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u81ea\u52a8\u63d0\u4ea4\u548c\u624b\u52a8\u63d0\u4ea4\u7684\u533a\u522b\uff0c\u5e76\u7ed9\u51fa\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u6765\u8bf4\u660e\u3002 \u4e00\u3001\u81ea\u52a8\u63d0\u4ea4\u5728MySQL\u4e2d\uff0c\u5982\u679c\u6ca1\u6709\u663e\u793a\u5730\u542f\u7528\u4e8b\u52a1\u5904\u7406\uff0c\u6bcf\u4e2aSQL\u8bed\u53e5\u5c06\u88ab\u81ea\u52a8\u63d0\u4ea4\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u6bcf\u6761SQL\u8bed\u53e5\u6267\u884c\u5b8c\u6210\u540e\u90fd\u4f1a\u81ea\u52a8\u63d0\u4ea4\u4e8b\u52a1\uff0c\u6570\u636e\u7684\u4fee\u6539\u5373\u523b\u751f\u6548\uff0c\u8fd9\u6837\u5c31\u65e0\u6cd5\u4fdd\u8bc1\u6570\u636e\u7684\u4e00\u81f4\u6027\u3002\u5728MySQL\u9ed8\u8ba4\u7684\u60c5\u51b5\u4e0b\uff0c\u4f1a\u81ea\u52a8\u542f\u7528\u81ea\u52a8\u63d0\u4ea4\u529f\u80fd\u3002\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6eautocommit\u53c2\u6570\u6765\u63a7\u5236\u81ea\u52a8\u63d0\u4ea4\u7684\u884c\u4e3a\uff0c\u5f53autocommit\u4e3a1\u65f6\uff0c\u8868\u793a\u542f\u7528\u81ea\u52a8\u63d0\u4ea4\uff1b\u5f53autocommit\u4e3a0\u65f6\uff0c\u8868\u793a\u7981\u7528\u81ea\u52a8\u63d0\u4ea4\u3002 \u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u6f14\u793a\u4e86\u81ea\u52a8\u63d0\u4ea4\u7684\u884c\u4e3a\uff1a CREATE TABLE example_table ( id INT PRIMARY KEY, name VARCHAR(50) ); INSERT INTO example_table VALUES (1, &#8216;Alice&#8217;); INSERT INTO example_table VALUES (2, &#8216;Bob&#8217;); SELECT * FROM example_table; \u4ee5\u4e0a\u4ee3\u7801\u6267\u884c\u540e\uff0c\u6570\u636e\u4f1a\u88ab\u81ea\u52a8\u63d0\u4ea4\uff0c\u6570\u636e\u7684\u4fee\u6539\u5373\u523b\u751f\u6548\u3002 \u4e8c\u3001\u624b\u52a8\u63d0\u4ea4\u624b\u52a8\u63d0\u4ea4\u662f\u6307\u5728\u4e00\u4e2a\u4e8b\u52a1\u5185\u6267\u884c\u591a\u4e2aSQL\u8bed\u53e5\uff0c\u7136\u540e\u5728\u5408\u9002\u7684\u65f6\u673a\u624b\u52a8\u63d0\u4ea4\u4e8b\u52a1\uff0c\u4ee5\u786e\u4fdd\u6570\u636e\u7684\u4e00\u81f4\u6027\u3002\u5728MySQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528BEGIN\u3001COMMIT\u548cROLLBACK\u8bed\u53e5\u6765\u63a7\u5236\u4e8b\u52a1\u7684\u63d0\u4ea4\u548c\u56de\u6eda\u3002 \u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff0c\u6f14\u793a\u4e86\u624b\u52a8\u63d0\u4ea4\u7684\u884c\u4e3a\uff1a SET autocommit = 0; &#8212; \u5173\u95ed\u81ea\u52a8\u63d0\u4ea4 BEGIN; &#8212; \u5f00\u59cb\u4e8b\u52a1 UPDATE example_table SET name 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