{"id":79066,"date":"2026-02-28T22:25:13","date_gmt":"2026-02-28T14:25:13","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/79066.html"},"modified":"2026-02-28T22:25:13","modified_gmt":"2026-02-28T14:25:13","slug":"sqlite-%e6%a0%b8%e5%bf%83%e5%a4%8d%e4%b9%a0%e6%89%8b%e5%86%8c%ef%bc%9asql%e8%af%ad%e6%b3%95%e7%b2%be%e8%ae%b2-%e4%b8%8emysql-oracle%e6%a0%b8%e5%bf%83%e5%8c%ba%e5%88%ab","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/79066.html","title":{"rendered":"# SQLite \u6838\u5fc3\u590d\u4e60\u624b\u518c\uff1aSQL\u8bed\u6cd5\u7cbe\u8bb2 + \u4e0eMySQL\/Oracle\u6838\u5fc3\u533a\u522b"},"content":{"rendered":"<h3>\u4e00\u3001SQLite \u6838\u5fc3\u7279\u6027<\/h3>\n<p>SQLite\u662f\u65e0\u670d\u52a1\u5668\u3001\u5355\u6587\u4ef6\u3001\u96f6\u914d\u7f6e\u3001ACID\u517c\u5bb9\u7684\u5d4c\u5165\u5f0f\u5173\u7cfb\u578b\u6570\u636e\u5e93&#xff0c;\u6838\u5fc3\u5e93\u4ec5\u767eKB&#xff0c;\u5e7f\u6cdb\u7528\u4e8e\u79fb\u52a8\u7aef\u3001\u684c\u9762\u5e94\u7528\u3001IoT\u3001\u672c\u5730\u7f13\u5b58\u4e0e\u5355\u5143\u6d4b\u8bd5\u3002<\/p>\n<ul>\n<li>\n<p>\u65e0\u9700\u5b89\u88c5\u670d\u52a1&#xff0c;\u76f4\u63a5\u8bfb\u5199.db\/.sqlite\u6587\u4ef6<\/p>\n<\/li>\n<li>\n<p>\u652f\u6301\u6807\u51c6SQL-92\u5b50\u96c6&#xff0c;\u8f7b\u91cf\u6613\u7528<\/p>\n<\/li>\n<li>\n<p>\u52a8\u6001\u7c7b\u578b&#043;\u7c7b\u578b\u4eb2\u548c\u6027&#xff0c;\u517c\u5bb9\u4e3b\u6d41\u6570\u636e\u5e93\u8bed\u6cd5<\/p>\n<\/li>\n<\/ul>\n<hr \/>\n<h3>\u4e8c\u3001SQLite \u6838\u5fc3SQL\u8bed\u6cd5&#xff08;\u590d\u4e60\u91cd\u70b9&#xff09;<\/h3>\n<h4>2.1 \u6570\u636e\u7c7b\u578b&#xff08;\u5fc5\u8bb0&#xff09;<\/h4>\n<p>SQLite\u5185\u90e8\u53ea\u67095\u79cd\u5b58\u50a8\u7c7b\u578b&#xff0c;\u5217\u58f0\u660e\u4ec5\u4e3a\u7c7b\u578b\u4eb2\u548c\u6027&#xff08;\u975e\u5f3a\u5236\u6821\u9a8c&#xff09;\u3002<\/p>\n<table>\n<tr>\u5b58\u50a8\u7c7b\u578b\u8bf4\u660e\u517c\u5bb9\u58f0\u660e<\/tr>\n<tbody>\n<tr>\n<td>INTEGER<\/td>\n<td>\u6574\u6570&#xff08;1\/2\/3\/4\/6\/8\u5b57\u8282&#xff09;<\/td>\n<td>INT\/BIGINT\/TINYINT<\/td>\n<\/tr>\n<tr>\n<td>TEXT<\/td>\n<td>\u5b57\u7b26\u4e32&#xff08;UTF-8\/16&#xff09;<\/td>\n<td>CHAR\/VARCHAR\/TEXT<\/td>\n<\/tr>\n<tr>\n<td>REAL<\/td>\n<td>\u6d6e\u70b9\u6570&#xff08;8\u5b57\u8282IEEE&#xff09;<\/td>\n<td>FLOAT\/DOUBLE<\/td>\n<\/tr>\n<tr>\n<td>BLOB<\/td>\n<td>\u4e8c\u8fdb\u5236\u6570\u636e&#xff08;\u539f\u6837\u5b58\u50a8&#xff09;<\/td>\n<td>BLOB<\/td>\n<\/tr>\n<tr>\n<td>NULL<\/td>\n<td>\u7a7a\u503c<\/td>\n<td>NULL<\/td>\n<\/tr>\n<tr>\n<td>\u63d0\u793a&#xff1a;3.37.0&#043;\u652f\u6301STRICT\u8868\u5f00\u542f\u4e25\u683c\u7c7b\u578b\u6821\u9a8c\u3002<\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>2.2 DDL \u6570\u636e\u5b9a\u4e49<\/h4>\n<h5>\u5efa\u8868&#xff08;\u5e26\u7ea6\u675f&#xff09;<\/h5>\n<p>CREATE TABLE user (<br \/>\n    id INTEGER PRIMARY KEY AUTOINCREMENT, &#8212; \u81ea\u589e\u4e3b\u952e<br \/>\n    username TEXT NOT NULL UNIQUE, &#8212; \u975e\u7a7a&#043;\u552f\u4e00<br \/>\n    age INTEGER CHECK (age &gt;&#061; 0), &#8212; \u68c0\u67e5\u7ea6\u675f<br \/>\n    email TEXT COLLATE NOCASE, &#8212; \u5927\u5c0f\u5199\u4e0d\u654f\u611f<br \/>\n    create_time TEXT DEFAULT CURRENT_TIMESTAMP &#8212; \u9ed8\u8ba4\u65f6\u95f4<br \/>\n);<\/p>\n<h5>\u5e38\u7528DDL<\/h5>\n<p>&#8212; \u4fee\u6539\u8868\u540d<br \/>\nALTER TABLE user RENAME TO app_user;<br \/>\n&#8212; \u6dfb\u52a0\u5b57\u6bb5<br \/>\nALTER TABLE app_user ADD COLUMN phone TEXT;<br \/>\n&#8212; \u5220\u9664\u8868<br \/>\nDROP TABLE IF EXISTS app_user;<\/p>\n<p>\u6ce8\u610f&#xff1a;\u4e0d\u652f\u6301\u76f4\u63a5\u4fee\u6539\u5b57\u6bb5\u7c7b\u578b\/\u91cd\u547d\u540d\u5b57\u6bb5&#xff0c;\u9700\u65b0\u5efa\u8868\u8fc1\u79fb\u6570\u636e\u3002<\/p>\n<h4>2.3 DML \u6570\u636e\u64cd\u4f5c<\/h4>\n<h5>\u63d2\u5165&#xff08;\u652f\u6301\u51b2\u7a81\u5904\u7406&#xff09;<\/h5>\n<p>&#8212; \u5e38\u89c4\u63d2\u5165<br \/>\nINSERT INTO user (username, age) VALUES (&#039;zhangsan&#039;, 20);<br \/>\n&#8212; \u51b2\u7a81\u66ff\u6362&#xff08;\u552f\u4e00\u952e\u51b2\u7a81\u65f6\u8986\u76d6&#xff09;<br \/>\nINSERT OR REPLACE INTO user (username, age) VALUES (&#039;zhangsan&#039;, 21);<br \/>\n&#8212; \u51b2\u7a81\u5ffd\u7565<br \/>\nINSERT OR IGNORE INTO user (username, age) VALUES (&#039;zhangsan&#039;, 22);<\/p>\n<h5>\u66f4\u65b0\/\u5220\u9664<\/h5>\n<p>&#8212; \u66f4\u65b0&#xff08;\u5fc5\u987b\u52a0WHERE&#xff0c;\u5426\u5219\u5168\u8868\u66f4\u65b0&#xff09;<br \/>\nUPDATE user SET age&#061;22 WHERE id&#061;1;<br \/>\n&#8212; \u5220\u9664<br \/>\nDELETE FROM user WHERE id&#061;1;<br \/>\n&#8212; \u6e05\u7a7a\u8868&#xff08;\u65e0TRUNCATE&#xff0c;\u7528DELETE&#xff09;<br \/>\nDELETE FROM user;<\/p>\n<h4>2.4 DQL \u6570\u636e\u67e5\u8be2<\/h4>\n<h5>\u57fa\u7840\u67e5\u8be2<\/h5>\n<p>&#8212; \u6761\u4ef6&#043;\u5206\u9875<br \/>\nSELECT id, username FROM user WHERE age&gt;18 ORDER BY id DESC LIMIT 10 OFFSET 0;<br \/>\n&#8212; \u6a21\u7cca\u67e5\u8be2<br \/>\nSELECT * FROM user WHERE username LIKE &#039;zhang%&#039;;<br \/>\n&#8212; \u805a\u5408\u67e5\u8be2<br \/>\nSELECT COUNT(*), AVG(age) FROM user GROUP BY age HAVING AVG(age)&gt;20;<\/p>\n<h5>\u591a\u8868\u8fde\u63a5<\/h5>\n<p>&#8212; \u5185\u8fde\u63a5<br \/>\nSELECT u.username, o.order_no FROM user u<br \/>\nJOIN orders o ON u.id&#061;o.user_id;<br \/>\n&#8212; \u5de6\u8fde\u63a5<br \/>\nSELECT u.username, o.order_no FROM user u<br \/>\nLEFT JOIN orders o ON u.id&#061;o.user_id;<\/p>\n<p>\u6ce8\u610f&#xff1a;\u4e0d\u652f\u6301FULL OUTER JOIN&#xff0c;\u53ef\u901a\u8fc7UNION\u6a21\u62df\u3002<\/p>\n<h4>2.5 \u4e8b\u52a1\u4e0e\u7ea6\u675f<\/h4>\n<p>&#8212; \u5f00\u542f\u4e8b\u52a1<br \/>\nBEGIN TRANSACTION;<br \/>\nUPDATE user SET age&#061;23 WHERE id&#061;1;<br \/>\n&#8212; \u63d0\u4ea4<br \/>\nCOMMIT;<br \/>\n&#8212; \u56de\u6eda<br \/>\nROLLBACK;<\/p>\n<p>&#8212; \u5f00\u542f\u5916\u952e\u7ea6\u675f&#xff08;\u9ed8\u8ba4\u5173\u95ed&#xff09;<br \/>\nPRAGMA foreign_keys &#061; ON;<\/p>\n<hr \/>\n<h3>\u4e09\u3001SQLite vs MySQL vs Oracle&#xff08;\u6838\u5fc3\u533a\u522b&#xff09;<\/h3>\n<table>\n<tr>\u5bf9\u6bd4\u7ef4\u5ea6SQLiteMySQLOracle<\/tr>\n<tbody>\n<tr>\n<td>\u67b6\u6784<\/td>\n<td>\u65e0\u670d\u52a1\u7aef&#xff08;\u5d4c\u5165\u8fdb\u7a0b&#xff09;<\/td>\n<td>\u5ba2\u6237\u7aef\/\u670d\u52a1\u7aef<\/td>\n<td>\u5ba2\u6237\u7aef\/\u670d\u52a1\u7aef<\/td>\n<\/tr>\n<tr>\n<td>\u5b58\u50a8<\/td>\n<td>\u5355\u6587\u4ef6<\/td>\n<td>\u591a\u6587\u4ef6\/\u8868\u7a7a\u95f4<\/td>\n<td>\u8868\u7a7a\u95f4&#043;\u6570\u636e\u6587\u4ef6<\/td>\n<\/tr>\n<tr>\n<td>\u7c7b\u578b\u7cfb\u7edf<\/td>\n<td>\u52a8\u6001\u7c7b\u578b&#043;\u4eb2\u548c\u6027<\/td>\n<td>\u9759\u6001\u5f3a\u7c7b\u578b<\/td>\n<td>\u9759\u6001\u5f3a\u7c7b\u578b<\/td>\n<\/tr>\n<tr>\n<td>\u5e76\u53d1<\/td>\n<td>\u5355\u5199\u591a\u8bfb&#xff0c;\u9ad8\u5e76\u53d1\u5f31<\/td>\n<td>MVCC&#xff0c;\u9ad8\u5e76\u53d1\u5f3a<\/td>\n<td>MVCC&#xff0c;\u4f01\u4e1a\u7ea7\u5e76\u53d1<\/td>\n<\/tr>\n<tr>\n<td>\u9ad8\u7ea7\u7279\u6027<\/td>\n<td>\u65e0\u5b58\u50a8\u8fc7\u7a0b\u3001\u65e0\u7528\u6237\u6743\u9650<\/td>\n<td>\u652f\u6301\u5b58\u50a8\u8fc7\u7a0b\u3001\u89e6\u53d1\u5668<\/td>\n<td>\u5b8c\u6574\u4f01\u4e1a\u7ea7\u7279\u6027<\/td>\n<\/tr>\n<tr>\n<td>\u90e8\u7f72<\/td>\n<td>\u96f6\u914d\u7f6e&#xff0c;\u5f00\u7bb1\u5373\u7528<\/td>\n<td>\u9700\u5b89\u88c5\u914d\u7f6e<\/td>\n<td>\u91cd\u578b\u90e8\u7f72&#xff0c;\u4e13\u4e1a\u8fd0\u7ef4<\/td>\n<\/tr>\n<tr>\n<td>\u9002\u7528\u573a\u666f<\/td>\n<td>\u5d4c\u5165\u5f0f\u3001\u672c\u5730\u7f13\u5b58<\/td>\n<td>Web\u5e94\u7528\u3001\u4e2d\u5c0f\u9879\u76ee<\/td>\n<td>\u91d1\u878d\u3001\u653f\u4f01\u6838\u5fc3\u7cfb\u7edf<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h3>\u56db\u3001\u9ad8\u9891\u8e29\u5751\u70b9<\/h3>\n<li>\n<p>\u65e0TRUNCATE&#xff1a;\u7528DELETE FROM \u8868\u6e05\u7a7a\u8868<\/p>\n<\/li>\n<li>\n<p>\u5b57\u6bb5\u4fee\u6539\u53d7\u9650&#xff1a;\u4e0d\u652f\u6301\u76f4\u63a5\u6539\u5b57\u6bb5\u540d\/\u7c7b\u578b<\/p>\n<\/li>\n<li>\n<p>\u5916\u952e\u9ed8\u8ba4\u5173\u95ed&#xff1a;\u9700\u624b\u52a8PRAGMA foreign_keys&#061;ON\u5f00\u542f<\/p>\n<\/li>\n<li>\n<p>\u5e76\u53d1\u5199\u5165\u74f6\u9888&#xff1a;\u5199\u64cd\u4f5c\u9501\u5e93&#xff0c;\u4e0d\u9002\u5408\u9ad8\u5e76\u53d1\u5199\u5165<\/p>\n<\/li>\n<li>\n<p>\u65e0\u6743\u9650\u7cfb\u7edf&#xff1a;\u6587\u4ef6\u5373\u6743\u9650&#xff0c;\u4f9d\u8d56\u64cd\u4f5c\u7cfb\u7edf\u6743\u9650\u63a7\u5236<\/p>\n<\/li>\n<hr \/>\n<h3>\u4e94\u3001\u9002\u7528\u573a\u666f\u603b\u7ed3<\/h3>\n<p>\u2705 \u63a8\u8350\u4f7f\u7528&#xff1a;\u79fb\u52a8\u7aef\/\u684c\u9762\u5e94\u7528\u3001IoT\u8bbe\u5907\u3001\u672c\u5730\u6570\u636e\u5b58\u50a8\u3001\u5355\u5143\u6d4b\u8bd5\u3001\u5c0f\u578b\u5de5\u5177<\/p>\n<p>\u274c \u4e0d\u63a8\u8350&#xff1a;\u9ad8\u5e76\u53d1Web\u670d\u52a1\u3001\u6d77\u91cf\u6570\u636e\u3001\u591a\u7528\u6237\u534f\u540c\u5199\u5165<\/p>\n<hr \/>\n<h3>\u516d\u3001\u7ed3\u8bed<\/h3>\n<p>SQLite\u4ee5\u8f7b\u91cf\u3001\u96f6\u914d\u7f6e\u4e3a\u6838\u5fc3\u4f18\u52bf&#xff0c;\u8bed\u6cd5\u517c\u5bb9\u6807\u51c6SQL&#xff0c;\u5b66\u4e60\u6210\u672c\u4f4e\u3002\u638c\u63e1\u672c\u6587\u8bed\u6cd5\u4e0e\u5dee\u5f02\u70b9&#xff0c;\u53ef\u5feb\u901f\u5e94\u5bf9\u9762\u8bd5\u4e0e\u65e5\u5e38\u5f00\u53d1\u3002\u5efa\u8bae\u7ed3\u5408sqlite3\u547d\u4ee4\u884c\u6216DBeaver\u5b9e\u64cd&#xff0c;\u52a0\u6df1\u8bb0\u5fc6\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001SQLite \u6838\u5fc3\u7279\u6027<br \/>\nSQLite\u662f\u65e0\u670d\u52a1\u5668\u3001\u5355\u6587\u4ef6\u3001\u96f6\u914d\u7f6e\u3001ACID\u517c\u5bb9\u7684\u5d4c\u5165\u5f0f\u5173\u7cfb\u578b\u6570\u636e\u5e93&#xff0c;\u6838\u5fc3\u5e93\u4ec5\u767eKB&#xff0c;\u5e7f\u6cdb\u7528\u4e8e\u79fb\u52a8\u7aef\u3001\u684c\u9762\u5e94\u7528\u3001IoT\u3001\u672c\u5730\u7f13\u5b58\u4e0e\u5355\u5143\u6d4b\u8bd5\u3002\u65e0\u9700\u5b89\u88c5\u670d\u52a1&#xff0c;\u76f4\u63a5\u8bfb\u5199.db\/.sqlite\u6587\u4ef6\u652f\u6301\u6807\u51c6SQL-92\u5b50\u96c6&#xff0c;\u8f7b\u91cf\u6613\u7528\u52a8\u6001\u7c7b\u578b\u7c7b\u578b\u4eb2\u548c\u6027&#xff0c;\u517c\u5bb9\u4e3b\u6d41\u6570\u636e\u5e93\u8bed\u6cd5\u4e8c\u3001SQLite \u6838\u5fc3SQL\u8bed\u6cd5&#xff08;\u590d\u4e60\u91cd\u70b9&#xff09;<br \/>\n2.1 \u6570\u636e\u7c7b\u578b&#xff08;\u5fc5\u8bb0&amp;#xf<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[114,768,2547],"topic":[],"class_list":["post-79066","post","type-post","status-publish","format-standard","hentry","category-server","tag-mysql","tag-sql","tag-sqlite"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title># SQLite \u6838\u5fc3\u590d\u4e60\u624b\u518c\uff1aSQL\u8bed\u6cd5\u7cbe\u8bb2 + \u4e0eMySQL\/Oracle\u6838\u5fc3\u533a\u522b - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/79066.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"# SQLite \u6838\u5fc3\u590d\u4e60\u624b\u518c\uff1aSQL\u8bed\u6cd5\u7cbe\u8bb2 + \u4e0eMySQL\/Oracle\u6838\u5fc3\u533a\u522b - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u4e00\u3001SQLite \u6838\u5fc3\u7279\u6027 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