{"id":160721,"date":"2024-11-04T00:27:29","date_gmt":"2024-11-03T16:27:29","guid":{"rendered":"https:\/\/server.hk\/cnblog\/160721\/"},"modified":"2024-11-04T00:27:30","modified_gmt":"2024-11-03T16:27:30","slug":"sqlite-%e6%95%99%e7%a8%8b%ef%bc%9asqlite-%e8%aa%9e%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/160721\/","title":{"rendered":"SQLITE \u6559\u7a0b\uff1aSQLite \u8a9e\u6cd5"},"content":{"rendered":"

SQLITE \u6559\u7a0b\uff1aSQLite \u8a9e\u6cd5<\/h1>\n

SQLite \u662f\u4e00\u7a2e\u8f15\u91cf\u7d1a\u7684\u95dc\u806f\u5f0f\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u61c9\u7528\u7a0b\u5f0f\u4e2d\uff0c\u7279\u5225\u662f\u5728\u79fb\u52d5\u8a2d\u5099\u548c\u5d4c\u5165\u5f0f\u7cfb\u7d71\u4e2d\u3002\u7531\u65bc\u5176\u7c21\u55ae\u6613\u7528\u548c\u9ad8\u6548\u7684\u7279\u6027\uff0cSQLite \u6210\u70ba\u4e86\u8a31\u591a\u958b\u767c\u8005\u7684\u9996\u9078\u8cc7\u6599\u5eab\u3002\u672c\u6587\u5c07\u4ecb\u7d39 SQLite \u7684\u57fa\u672c\u8a9e\u6cd5\uff0c\u5e6b\u52a9\u8b80\u8005\u5feb\u901f\u4e0a\u624b\u3002<\/p>\n

SQLite \u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

SQLite \u662f\u4e00\u500b\u81ea\u7d66\u81ea\u8db3\u7684\u3001\u7121\u4f3a\u670d\u5668\u7684\u3001\u96f6\u914d\u7f6e\u7684 SQL \u8cc7\u6599\u5eab\u5f15\u64ce\u3002\u5b83\u7684\u8cc7\u6599\u5eab\u5132\u5b58\u5728\u4e00\u500b\u55ae\u4e00\u7684\u6a94\u6848\u4e2d\uff0c\u9019\u4f7f\u5f97\u8cc7\u6599\u7684\u7ba1\u7406\u548c\u5099\u4efd\u8b8a\u5f97\u975e\u5e38\u65b9\u4fbf\u3002SQLite \u652f\u63f4\u5927\u591a\u6578 SQL \u6a19\u6e96\uff0c\u4e26\u4e14\u63d0\u4f9b\u4e86\u8c50\u5bcc\u7684\u529f\u80fd\uff0c\u5982\u4e8b\u52d9\u8655\u7406\u3001\u89f8\u767c\u5668\u548c\u8996\u5716\u7b49\u3002<\/p>\n

\u57fa\u672c\u8a9e\u6cd5<\/h2>\n

1. \u5275\u5efa\u8cc7\u6599\u5eab<\/h3>\n

\u5728 SQLite \u4e2d\uff0c\u5275\u5efa\u8cc7\u6599\u5eab\u975e\u5e38\u7c21\u55ae\u3002\u53ea\u9700\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n

sqlite3 mydatabase.db<\/code><\/pre>\n
\u9019\u5c07\u5275\u5efa\u4e00\u500b\u540d\u70ba mydatabase.db<\/code> \u7684\u8cc7\u6599\u5eab\u6a94\u6848\u3002\u5982\u679c\u6a94\u6848\u5df2\u5b58\u5728\uff0c\u5247\u6703\u6253\u958b\u8a72\u6a94\u6848\u3002<\/p>\n
2. \u5275\u5efa\u8cc7\u6599\u8868<\/h3>\n
\u4f7f\u7528 CREATE TABLE<\/code> \u8a9e\u53e5\u4f86\u5275\u5efa\u8cc7\u6599\u8868\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u5275\u5efa\u7528\u6236\u8cc7\u6599\u8868\u7684\u7bc4\u4f8b\uff1a<\/p>\n
CREATE TABLE users (\n    id INTEGER PRIMARY KEY AUTOINCREMENT,\n    name TEXT NOT NULL,\n    email TEXT NOT NULL UNIQUE\n);<\/code><\/pre>\n
\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba users<\/code> \u7684\u8cc7\u6599\u8868\uff0c\u5305\u542b\u4e09\u500b\u6b04\u4f4d\uff1aid<\/code>\u3001name<\/code> \u548c email<\/code>\u3002<\/p>\n
3. \u63d2\u5165\u8cc7\u6599<\/h3>\n
\u4f7f\u7528 INSERT INTO<\/code> \u8a9e\u53e5\u4f86\u63d2\u5165\u8cc7\u6599\u3002\u4ee5\u4e0b\u662f\u63d2\u5165\u4e00\u689d\u65b0\u7528\u6236\u7684\u7bc4\u4f8b\uff1a<\/p>\n
INSERT INTO users (name, email) VALUES ('John Doe', 'john@example.com');<\/code><\/pre>\n
4. \u67e5\u8a62\u8cc7\u6599<\/h3>\n
\u4f7f\u7528 SELECT<\/code> \u8a9e\u53e5\u4f86\u67e5\u8a62\u8cc7\u6599\u3002\u4ee5\u4e0b\u662f\u67e5\u8a62\u6240\u6709\u7528\u6236\u7684\u7bc4\u4f8b\uff1a<\/p>\n
SELECT * FROM users;<\/code><\/pre>\n
\u9019\u5c07\u8fd4\u56de users<\/code> \u8cc7\u6599\u8868\u4e2d\u7684\u6240\u6709\u8a18\u9304\u3002<\/p>\n
5. \u66f4\u65b0\u8cc7\u6599<\/h3>\n
\u4f7f\u7528 UPDATE<\/code> \u8a9e\u53e5\u4f86\u66f4\u65b0\u8cc7\u6599\u3002\u4ee5\u4e0b\u662f\u66f4\u65b0\u7528\u6236\u96fb\u5b50\u90f5\u4ef6\u7684\u7bc4\u4f8b\uff1a<\/p>\n
UPDATE users SET email = 'john.doe@example.com' WHERE id = 1;<\/code><\/pre>\n
6. \u522a\u9664\u8cc7\u6599<\/h3>\n
\u4f7f\u7528 DELETE<\/code> \u8a9e\u53e5\u4f86\u522a\u9664\u8cc7\u6599\u3002\u4ee5\u4e0b\u662f\u522a\u9664\u7279\u5b9a\u7528\u6236\u7684\u7bc4\u4f8b\uff1a<\/p>\n
DELETE FROM users WHERE id = 1;<\/code><\/pre>\n
\u9032\u968e\u529f\u80fd<\/h2>\n
1. \u4e8b\u52d9\u8655\u7406<\/h3>\n
SQLite \u652f\u63f4\u4e8b\u52d9\u8655\u7406\uff0c\u9019\u610f\u5473\u8457\u53ef\u4ee5\u5c07\u591a\u500b SQL \u64cd\u4f5c\u5305\u88dd\u5728\u4e00\u500b\u4e8b\u52d9\u4e2d\uff0c\u4ee5\u78ba\u4fdd\u8cc7\u6599\u7684\u4e00\u81f4\u6027\u3002\u4f7f\u7528 BEGIN TRANSACTION<\/code> \u958b\u59cb\u4e8b\u52d9\uff0c\u4e26\u4f7f\u7528 COMMIT<\/code> \u6216 ROLLBACK<\/code> \u4f86\u7d50\u675f\u4e8b\u52d9\u3002<\/p>\n
BEGIN TRANSACTION;\nINSERT INTO users (name, email) VALUES ('Jane Doe', 'jane@example.com');\nCOMMIT;<\/code><\/pre>\n
2. \u89f8\u767c\u5668<\/h3>\n
\u89f8\u767c\u5668\u662f\u4e00\u7a2e\u7279\u6b8a\u7684 SQL \u8a9e\u53e5\uff0c\u53ef\u4ee5\u5728\u7279\u5b9a\u4e8b\u4ef6\u767c\u751f\u6642\u81ea\u52d5\u57f7\u884c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u5728\u63d2\u5165\u65b0\u7528\u6236\u6642\u81ea\u52d5\u8a18\u9304\u7684\u89f8\u767c\u5668\u7bc4\u4f8b\uff1a<\/p>\n
CREATE TRIGGER log_user_insert\nAFTER INSERT ON users\nBEGIN\n    INSERT INTO user_log (user_id, action) VALUES (new.id, 'inserted');\nEND;<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
SQLite \u662f\u4e00\u500b\u529f\u80fd\u5f37\u5927\u4e14\u6613\u65bc\u4f7f\u7528\u7684\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u9069\u5408\u5404\u7a2e\u61c9\u7528\u5834\u666f\u3002\u672c\u6587\u4ecb\u7d39\u4e86 SQLite \u7684\u57fa\u672c\u8a9e\u6cd5\uff0c\u5305\u62ec\u5275\u5efa\u8cc7\u6599\u5eab\u3001\u8cc7\u6599\u8868\u3001\u63d2\u5165\u3001\u67e5\u8a62\u3001\u66f4\u65b0\u548c\u522a\u9664\u8cc7\u6599\u7b49\u64cd\u4f5c\u3002\u900f\u904e\u9019\u4e9b\u57fa\u672c\u77e5\u8b58\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5feb\u901f\u4e0a\u624b\u4e26\u6709\u6548\u5730\u7ba1\u7406\u8cc7\u6599\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684 SQLite \u61c9\u7528\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f \u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u9084\u662f\u5176\u4ed6\u5730\u5340\u7684\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u63f4\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5b78\u7fd2SQLite\u8a9e\u6cd5\u7684\u5168\u9762\u6559\u7a0b\uff0c\u638c\u63e1\u6578\u64da\u5eab\u7ba1\u7406\u548c\u67e5\u8a62\u6280\u5de7\uff0c\u8f15\u9b06\u4e0a\u624bSQLite\uff0c\u63d0\u5347\u958b\u767c\u6548\u7387\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-160721","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160721","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=160721"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160721\/revisions"}],"predecessor-version":[{"id":160722,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160721\/revisions\/160722"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=160721"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=160721"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=160721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}