{"id":54973,"date":"2023-04-06T03:17:50","date_gmt":"2023-04-06T08:17:50","guid":{"rendered":"https:\/\/www.loadview-testing.com\/blog\/5-%e4%b8%aa%e6%9c%80%e5%b8%b8%e8%a7%81%e7%9a%84%e6%95%b0%e6%8d%ae%e5%ba%93%e6%80%a7%e8%83%bd%e9%97%ae%e9%a2%98%e5%92%8c%e4%bf%ae%e5%a4%8d\/"},"modified":"2025-01-29T02:30:29","modified_gmt":"2025-01-29T08:30:29","slug":"5-%e4%b8%aa%e6%9c%80%e5%b8%b8%e8%a7%81%e7%9a%84%e6%95%b0%e6%8d%ae%e5%ba%93%e6%80%a7%e8%83%bd%e9%97%ae%e9%a2%98%e5%92%8c%e4%bf%ae%e5%a4%8d","status":"publish","type":"post","link":"https:\/\/www.loadview-testing.com\/zh-hans\/blog\/5-%e4%b8%aa%e6%9c%80%e5%b8%b8%e8%a7%81%e7%9a%84%e6%95%b0%e6%8d%ae%e5%ba%93%e6%80%a7%e8%83%bd%e9%97%ae%e9%a2%98%e5%92%8c%e4%bf%ae%e5%a4%8d\/","title":{"rendered":"5 \u4e2a\u6700\u5e38\u89c1\u7684\u6570\u636e\u5e93\u6027\u80fd\u95ee\u9898\u548c\u4fee\u590d"},"content":{"rendered":"[et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;section&#8221; _builder_version=&#8221;4.20.4&#8243; custom_padding=&#8221;0px||0px||false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row admin_label=&#8221;\u884c&#8221; _builder_version=&#8221;4.16&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text admin_label=&#8221;Text&#8221; _builder_version=&#8221;4.16&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; global_colors_info=&#8221;{}&#8221;]\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.loadview-testing.com\/wp-content\/uploads\/database-performance-issues-1024x410.jpeg\" alt=\"\u6570\u636e\u5e93\u6027\u80fd\u95ee\u9898\" width=\"1024\" height=\"410\" class=\"alignnone size-large wp-image-54638\" srcset=\"https:\/\/www.loadview-testing.com\/wp-content\/uploads\/database-performance-issues-980x392.jpeg 980w, https:\/\/www.loadview-testing.com\/wp-content\/uploads\/database-performance-issues-480x192.jpeg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/p>\n<p>\u6570\u636e\u5e93\u662f\u8bb8\u591a\u5e94\u7528\u7a0b\u5e8f\u7684\u6838\u5fc3\uff0c\u5bf9\u4e8e\u5b58\u50a8\u548c\u68c0\u7d22\u6570\u636e\u81f3\u5173\u91cd\u8981\u3002 \u4f46\u662f\uff0c\u5c3d\u7ba1\u6570\u636e\u5e93\u5f88\u91cd\u8981\uff0c\u4f46\u5b83\u4eec\u5f88\u5bb9\u6613\u51fa\u73b0\u6027\u80fd\u95ee\u9898\uff0c\u4ece\u800c\u5f71\u54cd\u5e94\u7528\u7a0b\u5e8f\u6027\u80fd\u3002 \u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u4ecb\u7ecd\u4e86\u4e94\u4e2a\u6700\u5e38\u89c1\u7684\u6570\u636e\u5e93\u6027\u80fd\u95ee\u9898\u53ca\u5176\u4fee\u590d\u7a0b\u5e8f\u3002<\/p>\n<h2 id='1-\u7f3a\u4e4f\u7d22\u5f15'  id=\"boomdevs_1\"><strong>1.<\/strong> <strong>\u7f3a\u4e4f\u7d22\u5f15<\/strong><\/h2>\n<p>\u7d22\u5f15\u662f\u6570\u636e\u5e93\u6027\u80fd\u7684\u5173\u952e\u7ec4\u6210\u90e8\u5206\u3002 \u7d22\u5f15\u672c\u8d28\u4e0a\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u5141\u8bb8\u6570\u636e\u5e93\u5feb\u901f\u67e5\u627e\u7279\u5b9a\u6570\u636e\u3002 \u5f53\u6570\u636e\u5e93\u7f3a\u5c11\u7d22\u5f15\u65f6\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u67e5\u8be2\u901f\u5ea6\u53d8\u6162\u548c\u6574\u4f53\u6027\u80fd\u4e0d\u4f73\u3002<\/p>\n<p>\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u5305\u542b\u56db\u4e2a\u8868\u7684\u6570\u636e\u5e93\uff1atbl_Classroom\u3001tbl_Class\u3001tbl_Student \u548c tbl_Session\u3002 tbl_Classroom\u8868\u5305\u542b\u6709\u5173\u6bcf\u4e2a\u6559\u5ba4\u7684\u4fe1\u606f\uff0c\u4f8b\u5982\u5176\u5efa\u7b51\u7269\u540d\u79f0\u548c\u623f\u95f4\u53f7\u3002 tbl_Class\u8868\u5305\u542b\u6709\u5173\u6bcf\u4e2a\u73ed\u7ea7\u7684\u4fe1\u606f\uff0c\u4f8b\u5982\u5176\u73ed\u7ea7\u540d\u79f0\u548c\u5206\u914d\u7684\u6559\u5e08\u3002 tbl_Student\u8868\u5305\u542b\u6709\u5173\u6bcf\u4e2a\u5b66\u751f\u7684\u4fe1\u606f\uff0c\u4f8b\u5982\u4ed6\u4eec\u7684\u59d3\u540d\u548c\u5b66\u751f ID\u3002 tbl_Session\u8868\u5305\u542b\u6709\u5173\u6bcf\u4e2a\u8bfe\u5802\u4f1a\u8bdd\u7684\u4fe1\u606f\uff0c\u4f8b\u5982\u65e5\u671f\u3001\u65f6\u95f4\u548c\u6559\u5ba4\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"940\" height=\"789\" alt=\"\u6570\u636e\u5e93\u6027\u80fd\u95ee\u9898\" class=\"wp-image-54584\" src=\"https:\/\/www.loadview-testing.com\/wp-content\/uploads\/word-image-54583-1.png\" srcset=\"https:\/\/www.loadview-testing.com\/wp-content\/uploads\/word-image-54583-1.png 940w, https:\/\/www.loadview-testing.com\/wp-content\/uploads\/word-image-54583-1-480x403.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 940px, 100vw\" \/><\/p>\n<p><em>\u56fe1 &#8211; \u975e\u7d22\u5f15\u6570\u636e\u5e93<\/em><\/p>\n<p>\u5982\u679c\u6ca1\u6709\u7d22\u5f15\uff0c\u5bf9\u6b64\u6570\u636e\u5e93\u7684\u67e5\u8be2\u53ef\u80fd\u4f1a\u5f88\u6162\u4e14\u6548\u7387\u4f4e\u4e0b\uff0c\u5c24\u5176\u662f\u5728\u6570\u636e\u5e93\u5927\u5c0f\u589e\u957f\u65f6\u3002 \u4f46\u662f\uff0c\u901a\u8fc7\u6dfb\u52a0\u9002\u5f53\u7684\u7d22\u5f15\uff0c\u6211\u4eec\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u3002<\/p>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u7d22\u5f15\u6dfb\u52a0\u5230tbl_Classroom\u8868\u4e2dClassroom_ID\u5217\u3002 \u6b64\u7d22\u5f15\u5c06\u5141\u8bb8\u6570\u636e\u5e93\u6309 ID \u5feb\u901f\u67e5\u627e\u7279\u5b9a\u6559\u5ba4\uff0c\u8fd9\u5bf9\u4e8e\u201c\u67e5\u627e ID \u4e3a 4 \u7684\u6559\u5ba4\u4e2d\u53d1\u751f\u7684\u6240\u6709\u8bfe\u7a0b\u201d\u7b49\u67e5\u8be2\u975e\u5e38\u6709\u7528\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"439\" height=\"339\" alt=\"\u6570\u636e\u5e93\u6027\u80fd\u95ee\u9898\" class=\"wp-image-54593\" src=\"https:\/\/www.loadview-testing.com\/wp-content\/uploads\/word-image-54583-2.png\" srcset=\"https:\/\/www.loadview-testing.com\/wp-content\/uploads\/word-image-54583-2.png 439w, https:\/\/www.loadview-testing.com\/wp-content\/uploads\/word-image-54583-2-300x232.png 300w\" sizes=\"(max-width: 439px) 100vw, 439px\" \/><\/p>\n<p><em>\u56fe2 &#8211; \u6dfb\u52a0\u4e86tbl_Classroom PK<\/em><\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u53ef\u4ee5\u5411tbl_Class\u8868\u7684Class_ID\u548ccourse_code\u5217\u6dfb\u52a0\u4e00\u4e2a\u7d22\u5f15\u3002 \u6b64\u7d22\u5f15\u5c06\u5141\u8bb8\u6570\u636e\u5e93\u901a\u8fc7\u5176 ID \u6216\u8bfe\u7a0b\u4ee3\u7801\u5feb\u901f\u67e5\u627e\u7279\u5b9a\u7c7b\uff0c\u8fd9\u5bf9\u4e8e\u201c\u4f7f\u7528 ABC123 course_code\u67e5\u627e\u6240\u6709\u7c7b\u201d\u6216\u201c\u6309 Class_ID 17262 \u67e5\u627e\u6240\u6709\u7c7b\u201d\u7b49\u67e5\u8be2\u975e\u5e38\u6709\u7528\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"395\" height=\"444\" alt=\"\u6570\u636e\u5e93\u6027\u80fd\u95ee\u9898\" class=\"wp-image-54602\" src=\"https:\/\/www.loadview-testing.com\/wp-content\/uploads\/word-image-54583-3.png\" srcset=\"https:\/\/www.loadview-testing.com\/wp-content\/uploads\/word-image-54583-3.png 395w, https:\/\/www.loadview-testing.com\/wp-content\/uploads\/word-image-54583-3-267x300.png 267w\" sizes=\"(max-width: 395px) 100vw, 395px\" \/><\/p>\n<p><em>\u56fe3 &#8211; \u6dfb\u52a0tbl_Class\u952e<\/em><\/p>\n<p>\u6211\u4eec\u8fd8\u53ef\u4ee5\u5728\u5b66\u751f\u8868\u7684\u5b66\u751f ID \u5217\u4e2d\u6dfb\u52a0\u7d22\u5f15\u3002 \u6b64\u7d22\u5f15\u5c06\u5141\u8bb8\u6570\u636e\u5e93\u901a\u8fc7\u5176 ID \u5feb\u901f\u67e5\u627e\u7279\u5b9a\u5b66\u751f\uff0c\u8fd9\u5bf9\u4e8e\u201c\u67e5\u627e ID \u4e3a 12345 \u7684\u5b66\u751f\u201d\u7b49\u67e5\u8be2\u975e\u5e38\u6709\u7528\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"389\" height=\"344\" alt=\"\u6570\u636e\u5e93\u6027\u80fd\u95ee\u9898\" class=\"wp-image-54611\" src=\"https:\/\/www.loadview-testing.com\/wp-content\/uploads\/word-image-54583-4.png\" srcset=\"https:\/\/www.loadview-testing.com\/wp-content\/uploads\/word-image-54583-4.png 389w, https:\/\/www.loadview-testing.com\/wp-content\/uploads\/word-image-54583-4-300x265.png 300w\" sizes=\"(max-width: 389px) 100vw, 389px\" \/><\/p>\n<p><em>\u56fe4 &#8211; \u6dfb\u52a0\u4e86tbl_Student PK<\/em><\/p>\n<p>\u6700\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u5411tbl_Session\u8868\u7684\u7c7b ID \u5217\u6dfb\u52a0\u4e00\u4e2a\u7d22\u5f15\u3002 \u6b64\u7d22\u5f15\u5c06\u5141\u8bb8\u6570\u636e\u5e93\u5feb\u901f\u67e5\u627e\u7279\u5b9a\u7c7b\u7684\u6240\u6709\u4f1a\u8bdd\uff0c\u8fd9\u5bf9\u4e8e\u201c\u67e5\u627e Session_ID 5628 \u7684\u6240\u6709\u4f1a\u8bdd\u201d\u7b49\u67e5\u8be2\u975e\u5e38\u6709\u7528\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"439\" height=\"402\" alt=\"\u6570\u636e\u5e93\u6027\u80fd\u95ee\u9898\" class=\"wp-image-54620\" src=\"https:\/\/www.loadview-testing.com\/wp-content\/uploads\/word-image-54583-5.png\" srcset=\"https:\/\/www.loadview-testing.com\/wp-content\/uploads\/word-image-54583-5.png 439w, https:\/\/www.loadview-testing.com\/wp-content\/uploads\/word-image-54583-5-300x275.png 300w\" sizes=\"(max-width: 439px) 100vw, 439px\" \/><\/p>\n<p><em>\u56fe5 &#8211; \u6dfb\u52a0\u4e86tbl_Session PK<\/em><\/p>\n<p>\u901a\u8fc7\u6dfb\u52a0\u8fd9\u4e9b\u7d22\u5f15\uff0c\u5bf9\u6b64\u6570\u636e\u5e93\u7684\u67e5\u8be2\u5e94\u8be5\u66f4\u5feb\u3001\u66f4\u9ad8\u6548\u3002 \u786e\u5207\u7684\u6027\u80fd\u6539\u8fdb\u5c06\u53d6\u51b3\u4e8e\u6570\u636e\u5e93\u7684\u5927\u5c0f\u548c\u6b63\u5728\u6267\u884c\u7684\u7279\u5b9a\u67e5\u8be2\uff0c\u4f46\u7d22\u5f15\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u6570\u636e\u5e93\u6027\u80fd\u3002<\/p>\n<p>\u6b64\u95ee\u9898\u7684\u89e3\u51b3\u65b9\u6cd5\u5f88\u7b80\u5355\uff1a\u786e\u4fdd\u6240\u6709\u8868\u90fd\u6709\u9002\u5f53\u7684\u7d22\u5f15\u3002 \u9996\u5148\u786e\u5b9a\u6700\u5e38\u67e5\u8be2\u7684\u5217\uff0c\u5e76\u4e3a\u8fd9\u4e9b\u5217\u521b\u5efa\u7d22\u5f15\u3002 \u6b64\u5916\uff0c\u8bf7\u8003\u8651\u4f7f\u7528\u590d\u5408\u7d22\u5f15\uff0c\u590d\u5408\u7d22\u5f15\u662f\u8de8\u591a\u4e2a\u5217\u7684\u7d22\u5f15\u3002 \u4e0b\u56fe\u663e\u793a\u4e86\u5177\u6709\u7d22\u5f15\u548c\u5173\u7cfb\u7684\u793a\u4f8b\u6570\u636e\u5e93\uff0c\u5141\u8bb8\u7f16\u5199\u975e\u5e38\u5feb\u901f\u6709\u6548\u7684\u6570\u636e\u5e93\u67e5\u8be2\uff0c\u5e76\u4e14\u53ef\u4ee5\u5728 API \u67e5\u8be2\u4e2d\u4f7f\u7528\u4ee5\u63d0\u4f9b\u6765\u81ea\u8fdc\u7a0b\u7cfb\u7edf\u7684\u6570\u636e\u8bbf\u95ee\u3002<\/p>\n<p>\u4f7f\u7528\u8868\u4e4b\u95f4\u7684\u4e00\u5bf9\u591a\u5173\u7cfb\uff0c\u6211\u4eec\u53ef\u4ee5\u7f16\u5199\u6709\u6548\u7684\u67e5\u8be2\uff0c\u4ee5\u6839\u636e\u8868\u4e4b\u95f4\u7684\u8fde\u63a5\u6765\u63d0\u53d6\u76f8\u5173\u6570\u636e\u3002 \u8fd9\u4f7f\u6211\u4eec\u80fd\u591f\u51cf\u5c11\u91cd\u590d\u7684\u6570\u636e\uff08\u4f8b\u5982\uff0c\u65e0\u9700\u5c06\u5b66\u751f\u7684\u59d3\u540d\u5b58\u50a8\u5728tbl_Session\u8868\u4e2d\uff09\uff0c\u4ece\u800c\u51cf\u5c11\u4e86\u6570\u636e\u5e93\u5728\u67e5\u8be2\u671f\u95f4\u9700\u8981\u5b58\u50a8\u548c\u904d\u5386\u7684\u6570\u636e\u91cf\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"940\" height=\"763\" alt=\"\u6570\u636e\u5e93\u6027\u80fd\u95ee\u9898\" class=\"wp-image-54629\" src=\"https:\/\/www.loadview-testing.com\/wp-content\/uploads\/word-image-54583-6.png\" srcset=\"https:\/\/www.loadview-testing.com\/wp-content\/uploads\/word-image-54583-6.png 940w, https:\/\/www.loadview-testing.com\/wp-content\/uploads\/word-image-54583-6-480x390.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 940px, 100vw\" \/><\/p>\n<p><em>\u56fe6 &#8211; \u7d22\u5f15\u6570\u636e\u5e93<\/em> <\/p>\n<h2 id='2-\u67e5\u8be2\u6548\u7387\u4f4e\u4e0b'  id=\"boomdevs_2\"><strong>2.<\/strong> <strong>\u67e5\u8be2\u6548\u7387\u4f4e\u4e0b<\/strong><\/h2>\n<p>\u4f4e\u6548\u67e5\u8be2\u662f\u53e6\u4e00\u4e2a\u5e38\u89c1\u7684\u6570\u636e\u5e93\u6027\u80fd\u95ee\u9898\u3002 \u5f53\u67e5\u8be2\u9700\u8981\u6570\u636e\u5e93\u6267\u884c\u5927\u91cf\u5de5\u4f5c\u6765\u68c0\u7d22\u6570\u636e\u65f6\uff0c\u4f1a\u53d1\u751f\u4f4e\u6548\u67e5\u8be2\u3002 \u5f53\u67e5\u8be2\u7f16\u5199\u4e0d\u5f53\u3001\u68c0\u7d22\u4e0d\u5fc5\u8981\u7684\u6570\u636e\u6216\u672a\u9488\u5bf9\u6570\u636e\u5e93\u67b6\u6784\u8fdb\u884c\u4f18\u5316\u65f6\uff0c\u53ef\u80fd\u4f1a\u53d1\u751f\u8fd9\u79cd\u60c5\u51b5\u3002<\/p>\n<p>\u4f7f\u7528\u6211\u4eec\u5b66\u6821\u6570\u636e\u5e93\u7684\u4f4e\u6548\u67e5\u8be2\u7684\u4e00\u4e2a\u793a\u4f8b\u5982\u4e0b\uff1a-<\/p>\n<p>\u9009\u62e9 * \u4ece\u4f1a\u8bdd\uff0c\u5176\u4e2dclass_name\u7c7b\u4f3c\u4e8e\u201c%\u5386\u53f2\u8bb0\u5f55%\u201d<\/p>\n<p>\u6b64\u95ee\u9898\u7684\u89e3\u51b3\u65b9\u6cd5\u662f\u786e\u4fdd\u9488\u5bf9\u6570\u636e\u5e93\u67b6\u6784\u4f18\u5316\u6240\u6709\u67e5\u8be2\u3002 \u8fd9\u53ef\u80fd\u6d89\u53ca\u91cd\u5199\u67e5\u8be2\u4ee5\u6700\u5927\u7a0b\u5ea6\u5730\u51cf\u5c11\u6240\u9700\u7684\u5de5\u4f5c\u91cf\u3001\u4f7f\u7528\u9002\u5f53\u7684\u8054\u63a5\u4ee5\u53ca\u51cf\u5c11\u68c0\u7d22\u7684\u6570\u636e\u91cf\u3002<\/p>\n<p>\u6b64\u67e5\u8be2\u4ece\u4f1a\u8bdd\u8868\u4e2d\u68c0\u7d22\u6240\u6709\u8bb0\u5f55\uff0c\u5176\u4e2dclass_name\u5217\u5305\u542b\u5355\u8bcd\u201c\u5386\u53f2\u8bb0\u5f55\u201d\u3002 \u4f46\u662f\uff0c\u5728\u641c\u7d22\u8bcd\u4e4b\u524d\u548c\u4e4b\u540e\u4f7f\u7528\u201c%\u201d\u901a\u914d\u7b26\u4f1a\u4f7f\u6b64\u67e5\u8be2\u975e\u5e38\u6162\uff0c\u5c24\u5176\u662f\u5728\u4f1a\u8bdd\u8868\u5f88\u5927\u7684\u60c5\u51b5\u4e0b\u3002 \u6570\u636e\u5e93\u9700\u8981\u626b\u63cf\u4f1a\u8bdd\u8868\u4e2d\u7684\u6bcf\u4e00\u884c\uff0c\u5e76\u9488\u5bf9\u6bcf\u4e00\u884c\u8bc4\u4f30 LIKE \u8fd0\u7b97\u7b26\uff0c\u8fd9\u53ef\u80fd\u975e\u5e38\u8017\u65f6\u3002<\/p>\n<p>\u6b64\u67e5\u8be2\u7684\u66f4\u6709\u6548\u7248\u672c\u662f\u4f7f\u7528\u7d22\u5f15\u7684\u66f4\u6709\u9488\u5bf9\u6027\u7684\u65b9\u6cd5\u3002 \u67e5\u8be2\u7684\u7d22\u5f15\u6570\u636e\u5e93\u7248\u672c\u5c06\u662f\uff0c\u4f8b\u5982\uff1a-<\/p>\n<p>\u9009\u62e9 * \u4ece\u4f1a\u8bdd\uff0c\u5176\u4e2d Class_ID = 123<\/p>\n<p>\u6b64\u67e5\u8be2\u4ece\u4f1a\u8bdd\u8868\u4e2d\u68c0\u7d22Class_ID\u5217\u7b49\u4e8e 123 \u7684\u6240\u6709\u8bb0\u5f55\u3002 \u5982\u679c\u5bf9Class_ID\u5217\u7f16\u5236\u4e86\u7d22\u5f15\uff0c\u5219\u6b64\u67e5\u8be2\u7684\u6267\u884c\u901f\u5ea6\u6bd4\u4e0a\u4e00\u4e2a\u67e5\u8be2\u5feb\u5f97\u591a\uff0c\u56e0\u4e3a\u6570\u636e\u5e93\u53ef\u4ee5\u5feb\u901f\u627e\u5230\u76f8\u5173\u884c\u3002<\/p>\n<p>\u901a\u5e38\uff0c\u6700\u597d\u907f\u514d\u5728 SQL \u67e5\u8be2\u4e2d\u4f7f\u7528\u901a\u914d\u7b26\uff08\u5982\u201c%\u201d\uff09\uff0c\u56e0\u4e3a\u5b83\u4eec\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6027\u80fd\u7f13\u6162\u4e14\u6548\u7387\u4f4e\u4e0b\u3002 \u76f8\u53cd\uff0c\u8bf7\u5c1d\u8bd5\u4f7f\u7528\u5229\u7528\u7d22\u5f15\u6765\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u7684\u76ee\u6807\u67e5\u8be2\u3002  <\/p>\n<h2 id='3-\u6570\u636e\u7c7b\u578b\u4e0d\u6b63\u786e'  id=\"boomdevs_3\"><strong>3. \u6570\u636e\u7c7b\u578b\u4e0d\u6b63\u786e<\/strong><\/h2>\n<p>\u6570\u636e\u7c7b\u578b\u662f\u6570\u636e\u5e93\u8bbe\u8ba1\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\u3002 \u9009\u62e9\u9519\u8bef\u7684\u6570\u636e\u7c7b\u578b\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6027\u80fd\u4e0d\u4f73\u548c\u5b58\u50a8\u7a7a\u95f4\u6d6a\u8d39\u3002 \u4f8b\u5982\uff0c\u5bf9\u5e94\u4e3a\u6574\u6570\u7684\u5b57\u6bb5\u4f7f\u7528 varchar \u6570\u636e\u7c7b\u578b\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6027\u80fd\u95ee\u9898\u3002<\/p>\n<p>\u6b64\u95ee\u9898\u7684\u89e3\u51b3\u65b9\u6cd5\u662f\u786e\u4fdd\u6240\u6709\u6570\u636e\u7c7b\u578b\u90fd\u9002\u5408\u5b83\u4eec\u5b58\u50a8\u7684\u6570\u636e\u3002 \u67e5\u770b\u6570\u636e\u5e93\u67b6\u6784\u5e76\u786e\u4fdd\u6bcf\u5217\u90fd\u4f7f\u7528\u6b63\u786e\u7684\u6570\u636e\u7c7b\u578b\u3002 \u6b64\u5916\uff0c\u8bf7\u8003\u8651\u4f7f\u7528\u6570\u636e\u538b\u7f29\u6765\u964d\u4f4e\u5b58\u50a8\u8981\u6c42\u3002<\/p>\n<p>\u786e\u5b9a\u6570\u636e\u5e93\u5b57\u6bb5\u7684\u9002\u5f53\u5927\u5c0f\u5bf9\u4e8e\u6570\u636e\u5e93\u8bbe\u8ba1\u548c\u6027\u80fd\u81f3\u5173\u91cd\u8981\u3002 \u4ee5\u4e0b\u662f\u8c03\u6574\u6570\u636e\u5e93\u5b57\u6bb5\u5927\u5c0f\u7684\u4e00\u4e9b\u6700\u4f73\u5b9e\u8df5\uff1a-  <\/p>\n<h3 id='\u4e86\u89e3\u6570\u636e'  id=\"boomdevs_4\"><strong>\u4e86\u89e3\u6570\u636e<\/strong><\/h3>\n<p>\u5728\u5b9a\u4e49\u5b57\u6bb5\u5927\u5c0f\u4e4b\u524d\uff0c\u5fc5\u987b\u4e86\u89e3\u5c06\u5b58\u50a8\u5728\u5b57\u6bb5\u4e2d\u7684\u6570\u636e\u3002 \u4f8b\u5982\uff0c\u5982\u679c\u8981\u8bbe\u8ba1\u4e00\u4e2a\u5b57\u6bb5\u6765\u5b58\u50a8\u540d\u79f0\uff0c\u5219\u5e94\u8003\u8651\u540d\u79f0\u7684\u957f\u5ea6\u4ee5\u53ca\u5b83\u4eec\u662f\u5426\u53ef\u4ee5\u5305\u542b\u7279\u6b8a\u5b57\u7b26\u3002 \u540c\u6837\uff0c\u5982\u679c\u8981\u8bbe\u8ba1\u7528\u4e8e\u5b58\u50a8\u7535\u8bdd\u53f7\u7801\u7684\u5b57\u6bb5\uff0c\u5219\u5e94\u8003\u8651\u662f\u5426\u5c06\u5b58\u50a8\u56fd\u9645\u53f7\u7801\u3002  <\/p>\n<h3 id='\u4f7f\u7528\u5c3d\u53ef\u80fd\u5c0f\u7684\u5c3a\u5bf8'  id=\"boomdevs_5\"><strong>\u4f7f\u7528\u5c3d\u53ef\u80fd\u5c0f\u7684\u5c3a\u5bf8<\/strong><\/h3>\n<p>\u5b9a\u4e49\u5b57\u6bb5\u5927\u5c0f\u65f6\uff0c\u6700\u597d\u4f7f\u7528\u53ef\u4ee5\u5bb9\u7eb3\u6570\u636e\u7684\u6700\u5c0f\u5927\u5c0f\u3002 \u4f8b\u5982\uff0c\u5982\u679c\u8981\u5b58\u50a8\u5e03\u5c14\u503c\uff0c\u5219\u5b57\u6bb5\u5927\u5c0f\u4e3a 1 \u4f4d\u5c31\u8db3\u591f\u4e86\u3002 \u540c\u6837\uff0c\u5982\u679c\u8981\u5b58\u50a8\u77ed\u5b57\u7b26\u4e32\u503c\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528\u5177\u6709\u9002\u5f53\u5927\u5c0f\u7684 varchar \u5b57\u6bb5\uff0c\u800c\u4e0d\u662f\u66f4\u5927\u7684\u6587\u672c\u5b57\u6bb5\u3002  <\/p>\n<h3 id='\u7559\u51fa\u589e\u957f\u7a7a\u95f4'  id=\"boomdevs_6\"><strong>\u7559\u51fa\u589e\u957f\u7a7a\u95f4<\/strong><\/h3>\n<p>\u867d\u7136\u4f7f\u7528\u5c3d\u53ef\u80fd\u5c0f\u7684\u5927\u5c0f\u5f88\u91cd\u8981\uff0c\u4f46\u60a8\u8fd8\u5e94\u8be5\u7559\u51fa\u589e\u957f\u7a7a\u95f4\uff0c\u4ee5\u9632\u6570\u636e\u6269\u5c55\u3002 \u4f8b\u5982\uff0c\u5982\u679c\u8981\u5b58\u50a8\u5ba2\u6237\u7684\u7535\u5b50\u90ae\u4ef6\u5730\u5740\uff0c\u5219\u5e94\u5141\u8bb8\u5b57\u6bb5\u5927\u5c0f\uff0c\u4ee5\u9002\u5e94\u5c06\u6765\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u683c\u5f0f\u7684\u6f5c\u5728\u53d8\u5316\u3002  <\/p>\n<h3 id='\u8003\u8651\u6027\u80fd'  id=\"boomdevs_7\"><strong>\u8003\u8651\u6027\u80fd<\/strong><\/h3>\n<p>\u6570\u636e\u5e93\u5b57\u6bb5\u7684\u5927\u5c0f\u4f1a\u5f71\u54cd\u6570\u636e\u5e93\u6027\u80fd\u3002 \u8f83\u5927\u7684\u5b57\u6bb5\u53ef\u80fd\u4f1a\u5360\u7528\u66f4\u591a\u5b58\u50a8\u7a7a\u95f4\uff0c\u800c\u8bbf\u95ee\u8f83\u5927\u5b57\u6bb5\u7684\u67e5\u8be2\u53ef\u80fd\u9700\u8981\u66f4\u957f\u7684\u65f6\u95f4\u6765\u6267\u884c\u3002 \u56e0\u6b64\uff0c\u5fc5\u987b\u5e73\u8861\u5b57\u6bb5\u5927\u5c0f\u4e0e\u6027\u80fd\u6ce8\u610f\u4e8b\u9879\u3002  <\/p>\n<h3 id='\u4e0d\u8981\u4f9d\u8d56\u6700\u5927\u9650\u5236'  id=\"boomdevs_8\"><strong>\u4e0d\u8981\u4f9d\u8d56\u6700\u5927\u9650\u5236<\/strong><\/h3>\n<p>\u5927\u591a\u6570\u6570\u636e\u5e93\u7cfb\u7edf\u5bf9\u5b57\u6bb5\u5927\u5c0f\u90fd\u6709\u6700\u5927\u9650\u5236\uff0c\u4f46\u6700\u597d\u4e0d\u8981\u4f9d\u8d56\u8fd9\u4e9b\u9650\u5236\u3002 \u76f8\u53cd\uff0c\u8bf7\u8bbe\u8ba1\u5177\u6709\u7279\u5b9a\u7528\u9014\u7684\u5b57\u6bb5\uff0c\u5e76\u6839\u636e\u5b58\u50a8\u7684\u6570\u636e\u5b9a\u4e49\u9002\u5f53\u7684\u5927\u5c0f\u3002<\/p>\n<p>\u901a\u8fc7\u9075\u5faa\u8fd9\u4e9b\u6700\u4f73\u5b9e\u8df5\uff0c\u60a8\u53ef\u4ee5\u9002\u5f53\u5730\u8c03\u6574\u6570\u636e\u5e93\u5b57\u6bb5\u7684\u5927\u5c0f\u5e76\u4f18\u5316\u6570\u636e\u5e93\u6027\u80fd\uff0c\u540c\u65f6\u4e3a\u672a\u6765\u7684\u589e\u957f\u7559\u51fa\u7a7a\u95f4\u3002  <\/p>\n<h2 id='4-\u7f3a\u4e4f\u7ef4\u62a4'  id=\"boomdevs_9\"><strong>4. \u7f3a\u4e4f\u7ef4\u62a4<\/strong><\/h2>\n<p>\u7f3a\u4e4f\u7ef4\u62a4\u662f\u4e00\u4e2a\u5e38\u89c1\u95ee\u9898\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u4e25\u91cd\u7684\u6570\u636e\u5e93\u6027\u80fd\u95ee\u9898\u3002 \u5b9a\u671f\u7ef4\u62a4\u6d3b\u52a8\uff08\u5982\u5907\u4efd\u3001\u66f4\u65b0\u548c\u4f18\u5316\uff09\u5bf9\u4e8e\u786e\u4fdd\u6570\u636e\u5e93\u5e73\u7a33\u9ad8\u6548\u5730\u8fd0\u884c\u81f3\u5173\u91cd\u8981\u3002 \u4ee5\u4e0b\u662f\u7ef4\u62a4\u5065\u5eb7\u6570\u636e\u5e93\u6240\u5fc5\u9700\u7684\u5173\u952e\u7ef4\u62a4\u6d3b\u52a8\uff1a-  <\/p>\n<h3 id='\u6570\u636e\u5e93\u5907\u4efd'  id=\"boomdevs_10\"><strong>\u6570\u636e\u5e93\u5907\u4efd<\/strong><\/h3>\n<p>\u6570\u636e\u5e93\u5907\u4efd\u662f\u6700\u5173\u952e\u7684\u7ef4\u62a4\u4efb\u52a1\u4e4b\u4e00\u3002 \u5907\u4efd\u5141\u8bb8\u60a8\u5728\u53d1\u751f\u786c\u4ef6\u6545\u969c\u3001\u8f6f\u4ef6\u635f\u574f\u6216\u4efb\u4f55\u5176\u4ed6\u707e\u96be\u6027\u4e8b\u4ef6\u65f6\u8fd8\u539f\u6570\u636e\u5e93\u3002 \u5982\u679c\u6ca1\u6709\u5b9a\u671f\u5907\u4efd\uff0c\u60a8\u53ef\u80fd\u4f1a\u4e22\u5931\u6240\u6709\u6570\u636e\uff0c\u8fd9\u5bf9\u60a8\u7684\u4e1a\u52a1\u6765\u8bf4\u53ef\u80fd\u662f\u707e\u96be\u6027\u7684\u3002 \u5fc5\u987b\u6709\u4e00\u4e2a\u5907\u4efd\u8ba1\u5212\uff0c\u4ee5\u786e\u4fdd\u60a8\u7684\u6570\u636e\u5b9a\u671f\u5907\u4efd\uff0c\u5e76\u5c06\u5907\u4efd\u5b58\u50a8\u5728\u5b89\u5168\u7684\u4f4d\u7f6e\u3002  <\/p>\n<h3 id='\u6570\u636e\u5e93\u66f4\u65b0'  id=\"boomdevs_11\"><strong>\u6570\u636e\u5e93\u66f4\u65b0<\/strong><\/h3>\n<p>\u6570\u636e\u5e93\u66f4\u65b0\u5bf9\u4e8e\u786e\u4fdd\u6570\u636e\u5e93\u8f6f\u4ef6\u4e0e\u6700\u65b0\u7684\u4fee\u8865\u7a0b\u5e8f\u548c\u9519\u8bef\u4fee\u590d\u4fdd\u6301\u540c\u6b65\u81f3\u5173\u91cd\u8981\u3002 \u65e0\u6cd5\u66f4\u65b0\u6570\u636e\u5e93\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5b89\u5168\u6f0f\u6d1e\u3001\u8f6f\u4ef6\u9519\u8bef\u548c\u5176\u4ed6\u53ef\u80fd\u5f71\u54cd\u6570\u636e\u5e93\u6027\u80fd\u7684\u95ee\u9898\u3002 \u5b9a\u671f\u66f4\u65b0\u8fd8\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u5e93\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\uff0c\u786e\u4fdd\u5176\u5e73\u7a33\u9ad8\u6548\u5730\u8fd0\u884c\u3002  <\/p>\n<h3 id='\u6570\u636e\u5e93\u4f18\u5316'  id=\"boomdevs_12\"><strong>\u6570\u636e\u5e93\u4f18\u5316<\/strong><\/h3>\n<p>\u6570\u636e\u5e93\u4f18\u5316\u6d89\u53ca\u5fae\u8c03\u6570\u636e\u5e93\u8bbe\u7f6e\u4ee5\u786e\u4fdd\u5176\u9ad8\u6548\u8fd0\u884c\u3002 \u8fd9\u5305\u62ec\u91cd\u5efa\u7d22\u5f15\u3001\u66f4\u65b0\u7edf\u8ba1\u4fe1\u606f\u548c\u5bf9\u6570\u636e\u5e93\u8fdb\u884c\u788e\u7247\u6574\u7406\u7b49\u4efb\u52a1\u3002 \u5b9a\u671f\u4f18\u5316\u53ef\u4ee5\u901a\u8fc7\u51cf\u5c11\u6267\u884c\u67e5\u8be2\u6240\u9700\u7684\u65f6\u95f4\u548c\u6700\u5927\u9650\u5ea6\u5730\u51cf\u5c11\u6570\u636e\u5e93\u505c\u673a\u65f6\u95f4\u6765\u663e\u8457\u63d0\u9ad8\u6570\u636e\u5e93\u6027\u80fd\u3002  <\/p>\n<h3 id='\u76d1\u89c6\u548c\u6027\u80fd\u8c03\u6574'  id=\"boomdevs_13\"><strong>\u76d1\u89c6\u548c\u6027\u80fd\u8c03\u6574<\/strong><\/h3>\n<p>\u5b9a\u671f\u76d1\u89c6\u6570\u636e\u5e93\u5bf9\u4e8e\u53ca\u65e9\u53d1\u73b0\u6027\u80fd\u95ee\u9898\u81f3\u5173\u91cd\u8981\u3002 \u901a\u8fc7\u76d1\u89c6\u6570\u636e\u5e93\uff0c\u53ef\u4ee5\u68c0\u6d4b\u67e5\u8be2\u6267\u884c\u7f13\u6162\u3001CPU \u4f7f\u7528\u7387\u9ad8\u548c\u78c1\u76d8\u7a7a\u95f4\u95ee\u9898\u7b49\u95ee\u9898\u3002 \u786e\u5b9a\u95ee\u9898\u540e\uff0c\u60a8\u53ef\u4ee5\u91c7\u53d6\u63aa\u65bd\uff0c\u901a\u8fc7\u8c03\u6574\u6570\u636e\u5e93\u8bbe\u7f6e\u3001\u6dfb\u52a0\u786c\u4ef6\u8d44\u6e90\u6216\u4f18\u5316\u67e5\u8be2\u6765\u4f18\u5316\u6570\u636e\u5e93\u6027\u80fd\u3002  <\/p>\n<h2 id='5-\u786c\u4ef6\u9650\u5236'  id=\"boomdevs_14\"><strong>5. \u786c\u4ef6\u9650\u5236<\/strong><\/h2>\n<p>\u786c\u4ef6\u9650\u5236\u53ef\u80fd\u4f1a\u5bf9\u6570\u636e\u5e93\u6027\u80fd\u4ea7\u751f\u91cd\u5927\u5f71\u54cd\u3002 \u786c\u4ef6\u8d44\u6e90\uff08\u5982 RAM\u3001\u786c\u76d8\u7a7a\u95f4\u548c CPU\uff09\u5728\u786e\u5b9a\u6570\u636e\u5e93\u5904\u7406\u6570\u636e\u7684\u6548\u7387\u65b9\u9762\u8d77\u7740\u5173\u952e\u4f5c\u7528\u3002 \u8ba9\u6211\u4eec\u4ed4\u7ec6\u770b\u770b\u4e00\u4e9b\u53ef\u80fd\u5f71\u54cd\u6570\u636e\u5e93\u6027\u80fd\u7684\u5e38\u89c1\u786c\u4ef6\u9650\u5236\uff1a  <\/p>\n<h3 id='\u5185\u5b58\u4e0d\u8db3'  id=\"boomdevs_15\"><strong>\u5185\u5b58\u4e0d\u8db3<\/strong><\/h3>\n<p>RAM \u662f\u6570\u636e\u5e93\u670d\u52a1\u5668\u7684\u5173\u952e\u7ec4\u4ef6\u3002 \u5b83\u5b58\u50a8\u7ecf\u5e38\u8bbf\u95ee\u7684\u6570\u636e\u548c\u67e5\u8be2\u6267\u884c\u8ba1\u5212\uff0c\u5141\u8bb8\u6570\u636e\u5e93\u5feb\u901f\u54cd\u5e94\u7528\u6237\u8bf7\u6c42\u3002 \u5982\u679c\u6570\u636e\u5e93\u670d\u52a1\u5668\u6ca1\u6709\u8db3\u591f\u7684 RAM\uff0c\u5b83\u53ef\u80fd\u4f1a\u6c42\u52a9\u4e8e\u5c06\u786c\u76d8\u7528\u4f5c\u865a\u62df\u5185\u5b58\uff0c\u8fd9\u4f1a\u663e\u8457\u964d\u4f4e\u6570\u636e\u5e93\u6027\u80fd\u3002 \u5728\u6781\u7aef\u60c5\u51b5\u4e0b\uff0c\u6570\u636e\u5e93\u670d\u52a1\u5668\u751a\u81f3\u53ef\u80fd\u56e0\u5185\u5b58\u4e0d\u8db3\u800c\u5d29\u6e83\u3002  <\/p>\n<h3 id='\u6709\u9650\u7684\u786c\u76d8\u7a7a\u95f4'  id=\"boomdevs_16\"><strong>\u6709\u9650\u7684\u786c\u76d8\u7a7a\u95f4<\/strong><\/h3>\n<p>\u786c\u76d8\u7a7a\u95f4\u662f\u6570\u636e\u5e93\u670d\u52a1\u5668\u7684\u53e6\u4e00\u4e2a\u5173\u952e\u8d44\u6e90\u3002 \u6570\u636e\u5e93\u9700\u8981\u5927\u91cf\u7684\u78c1\u76d8\u7a7a\u95f4\u6765\u5b58\u50a8\u6570\u636e\u548c\u65e5\u5fd7\u6587\u4ef6\u3002 \u5982\u679c\u786c\u76d8\u7a7a\u95f4\u4e0d\u8db3\uff0c\u6570\u636e\u5e93\u53ef\u80fd\u4f1a\u505c\u6b62\u54cd\u5e94\uff0c\u6216\u8005\u7528\u6237\u53ef\u80fd\u65e0\u6cd5\u5c06\u6570\u636e\u4fdd\u5b58\u5230\u6570\u636e\u5e93\u4e2d\u3002 \u5b9a\u671f\u76d1\u63a7\u78c1\u76d8\u7a7a\u95f4\u4f7f\u7528\u60c5\u51b5\u5e76\u786e\u4fdd\u59cb\u7ec8\u6709\u8db3\u591f\u7684\u53ef\u7528\u7a7a\u95f4\u81f3\u5173\u91cd\u8981\u3002  <\/p>\n<h3 id='\u5904\u7406\u5668\u4e0d\u8db3'  id=\"boomdevs_17\"><strong>\u5904\u7406\u5668\u4e0d\u8db3<\/strong><\/h3>\n<p>CPU \u901a\u8fc7\u5904\u7406\u67e5\u8be2\u548c\u5176\u4ed6\u6570\u636e\u5e93\u64cd\u4f5c\uff0c\u5728\u6570\u636e\u5e93\u670d\u52a1\u5668\u7684\u6027\u80fd\u4e2d\u8d77\u7740\u5173\u952e\u4f5c\u7528\u3002 \u5982\u679c CPU \u4e0d\u8db3\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u67e5\u8be2\u6267\u884c\u7f13\u6162\u548c\u6570\u636e\u5e93\u6027\u80fd\u4e0b\u964d\u3002 \u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5347\u7ea7 CPU \u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u6570\u636e\u5e93\u6027\u80fd\u3002<\/p>\n<p>\u786c\u4ef6\u9650\u5236\u53ef\u80fd\u4f1a\u5bf9\u6570\u636e\u5e93\u6027\u80fd\u4ea7\u751f\u91cd\u5927\u5f71\u54cd\u3002 \u5fc5\u987b\u786e\u4fdd\u6570\u636e\u5e93\u670d\u52a1\u5668\u5177\u6709\u8db3\u591f\u7684 RAM\u3001\u786c\u76d8\u7a7a\u95f4\u548c CPU \u6765\u652f\u6301\u5de5\u4f5c\u8d1f\u8f7d\u3002 \u5b9a\u671f\u76d1\u63a7\u786c\u4ef6\u8d44\u6e90\u5e76\u5728\u5fc5\u8981\u65f6\u5bf9\u5176\u8fdb\u884c\u5347\u7ea7\u6709\u52a9\u4e8e\u4fdd\u6301\u6700\u4f73\u6570\u636e\u5e93\u6027\u80fd\u3002  <\/p>\n<h2 id='\u5982\u4f55\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\u548c\u95ee\u9898'  id=\"boomdevs_18\"><strong>\u5982\u4f55\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\u548c\u95ee\u9898<\/strong><\/h2>\n<p>\u63d0\u9ad8\u6570\u636e\u5e93\u6027\u80fd\u9996\u5148\u8981\u8bc6\u522b\u548c\u89e3\u51b3\u6162\u901f SQL \u67e5\u8be2\u3002\u503c\u5f97\u5e86\u5e78\u7684\u662f\uff0c\u5404\u79cd\u5de5\u5177\u548c\u6280\u672f\u53ef\u4ee5\u5e2e\u52a9\u60a8\u67e5\u660e\u6027\u80fd\u95ee\u9898\u5e76\u4f18\u5316\u6570\u636e\u5e93\u4ee5\u63d0\u9ad8\u6548\u7387\u3002 <\/p>\n<p>\u5927\u591a\u6570\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u90fd\u5e26\u6709\u5185\u7f6e\u7684\u5206\u6790\u5de5\u5177\uff0c\u5141\u8bb8\u60a8\u76d1\u63a7\u67e5\u8be2\u6027\u80fd\u3001\u5206\u6790\u6267\u884c\u8ba1\u5212\u548c\u8ddf\u8e2a\u8d44\u6e90\u5229\u7528\u7387\u3002\u4f8b\u5982\uff0cMySQL \u63d0\u4f9b\u4e86 EXPLAIN \u8bed\u53e5\uff0c\u8be5\u8bed\u53e5\u663e\u793a\u4e86\u7279\u5b9a\u67e5\u8be2\u7684\u6267\u884c\u65b9\u5f0f\uff0c\u4ece\u800c\u5e2e\u52a9\u60a8\u8bc6\u522b\u6548\u7387\u4f4e\u4e0b\u7684\u95ee\u9898\u3002\u542f\u7528\u67e5\u8be2\u65e5\u5fd7\u8bb0\u5f55\u662f\u53e6\u4e00\u79cd\u6709\u6548\u7684\u65b9\u6cd5\u3002\u901a\u8fc7\u8bb0\u5f55\u6240\u6709 SQL \u67e5\u8be2\u53ca\u5176\u6267\u884c\u65f6\u95f4\uff0c\u60a8\u53ef\u4ee5\u5206\u6790\u8fd9\u4e9b\u6570\u636e\u4ee5\u67e5\u660e\u82b1\u8d39\u65f6\u95f4\u8d85\u8fc7\u9884\u671f\u7684\u67e5\u8be2\uff0c\u5e76\u786e\u5b9a\u5176\u8fd0\u884c\u7f13\u6162\u7684\u539f\u56e0\u3002   <\/p>\n<p>New Relic \u548c Datadog 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