{"id":189098,"date":"2024-11-12T04:37:20","date_gmt":"2024-11-11T20:37:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/189098\/"},"modified":"2024-11-12T04:37:21","modified_gmt":"2024-11-11T20:37:21","slug":"%e6%8f%90%e5%8d%87sqlite%e6%95%b8%e6%93%9a%e5%ba%ab%e5%9f%b7%e8%a1%8c%e6%95%88%e7%8e%87%e7%9a%84%e6%96%b9%e6%b3%95%e6%8e%a2%e7%a9%b6-sqlite%e6%95%b8%e6%93%9a%e5%ba%ab%e5%9f%b7%e8%a1%8c%e6%95%88","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/189098\/","title":{"rendered":"\u63d0\u5347sqlite\u6578\u64da\u5eab\u57f7\u884c\u6548\u7387\u7684\u65b9\u6cd5\u63a2\u7a76 (sqlite\u6578\u64da\u5eab\u57f7\u884c\u6548\u7387)"},"content":{"rendered":"

\u63d0\u5347SQLite\u6578\u64da\u5eab\u57f7\u884c\u6548\u7387\u7684\u65b9\u6cd5\u63a2\u7a76<\/h1>\n

SQLite\u662f\u4e00\u7a2e\u8f15\u91cf\u7d1a\u7684\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u79fb\u52d5\u61c9\u7528\u3001\u684c\u9762\u61c9\u7528\u53ca\u5d4c\u5165\u5f0f\u7cfb\u7d71\u4e2d\u3002\u5118\u7ba1SQLite\u7684\u8a2d\u8a08\u76ee\u7684\u662f\u70ba\u4e86\u7c21\u55ae\u548c\u9ad8\u6548\uff0c\u4f46\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6216\u9ad8\u983b\u7387\u67e5\u8a62\u6642\uff0c\u4ecd\u7136\u53ef\u80fd\u9762\u81e8\u6027\u80fd\u74f6\u9838\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5e7e\u7a2e\u63d0\u5347SQLite\u6578\u64da\u5eab\u57f7\u884c\u6548\u7387\u7684\u65b9\u6cd5\u3002<\/p>\n

1. \u4f7f\u7528\u9069\u7576\u7684\u7d22\u5f15<\/h2>\n

\u7d22\u5f15\u662f\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u7684\u95dc\u9375\u3002\u901a\u904e\u5728\u8868\u7684\u67d0\u4e9b\u5217\u4e0a\u5275\u5efa\u7d22\u5f15\uff0c\u53ef\u4ee5\u986f\u8457\u52a0\u5feb\u67e5\u8a62\u901f\u5ea6\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u7d22\u5f15\u7684\u57fa\u672c\u8a9e\u6cd5\uff1a<\/p>\n

CREATE INDEX index_name ON table_name(column_name);<\/code><\/pre>\n
\u7136\u800c\uff0c\u904e\u591a\u7684\u7d22\u5f15\u6703\u5f71\u97ff\u63d2\u5165\u548c\u66f4\u65b0\u64cd\u4f5c\u7684\u6027\u80fd\uff0c\u56e0\u6b64\u61c9\u6839\u64da\u5be6\u969b\u67e5\u8a62\u9700\u6c42\u4f86\u9078\u64c7\u6027\u5730\u5275\u5efa\u7d22\u5f15\u3002<\/p>\n
2. \u6279\u91cf\u63d2\u5165\u6578\u64da<\/h2>\n
\u5728\u63d2\u5165\u5927\u91cf\u6578\u64da\u6642\uff0c\u9010\u689d\u63d2\u5165\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002\u4f7f\u7528\u4e8b\u52d9\u4f86\u6279\u91cf\u63d2\u5165\u6578\u64da\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6548\u7387\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n
BEGIN TRANSACTION;\nINSERT INTO table_name (column1, column2) VALUES (value1, value2);\nINSERT INTO table_name (column1, column2) VALUES (value3, value4);\n-- \u66f4\u591a\u63d2\u5165\u8a9e\u53e5\nCOMMIT;<\/code><\/pre>\n
\u9019\u6a23\u505a\u53ef\u4ee5\u6e1b\u5c11\u78c1\u789f\u5beb\u5165\u7684\u6b21\u6578\uff0c\u5f9e\u800c\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n
3. \u512a\u5316\u67e5\u8a62\u8a9e\u53e5<\/h2>\n
\u67e5\u8a62\u8a9e\u53e5\u7684\u8a2d\u8a08\u5c0d\u6027\u80fd\u5f71\u97ff\u5de8\u5927\u3002\u4f7f\u7528EXPLAIN\u547d\u4ee4\u53ef\u4ee5\u5206\u6790\u67e5\u8a62\u7684\u57f7\u884c\u8a08\u5283\uff0c\u5f9e\u800c\u627e\u51fa\u6f5b\u5728\u7684\u6027\u80fd\u554f\u984c\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528EXPLAIN\u7684\u793a\u4f8b\uff1a<\/p>\n
EXPLAIN QUERY PLAN SELECT * FROM table_name WHERE column_name = value;<\/code><\/pre>\n
\u6839\u64da\u57f7\u884c\u8a08\u5283\u7684\u7d50\u679c\uff0c\u53ef\u4ee5\u8abf\u6574\u67e5\u8a62\u8a9e\u53e5\u6216\u7d22\u5f15\u8a2d\u7f6e\uff0c\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002<\/p>\n
4. \u907f\u514d\u4f7f\u7528SELECT *<\/h2>\n
\u5728\u67e5\u8a62\u6642\uff0c\u907f\u514d\u4f7f\u7528SELECT *\uff0c\u800c\u662f\u660e\u78ba\u6307\u5b9a\u9700\u8981\u7684\u5217\u3002\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u50b3\u8f38\u91cf\uff0c\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u3002\u4f8b\u5982\uff1a<\/p>\n
SELECT column1, column2 FROM table_name WHERE condition;<\/code><\/pre>\n
5. \u4f7f\u7528VACUUM\u547d\u4ee4<\/h2>\n
\u96a8\u8457\u6578\u64da\u7684\u589e\u522a\uff0cSQLite\u6578\u64da\u5eab\u6587\u4ef6\u53ef\u80fd\u6703\u8b8a\u5f97\u788e\u7247\u5316\uff0c\u5f71\u97ff\u6027\u80fd\u3002\u4f7f\u7528VACUUM\u547d\u4ee4\u53ef\u4ee5\u91cd\u5efa\u6578\u64da\u5eab\u6587\u4ef6\uff0c\u6e05\u7406\u7121\u7528\u7684\u7a7a\u9593\uff0c\u5f9e\u800c\u63d0\u9ad8\u6027\u80fd\uff1a<\/p>\n
VACUUM;<\/code><\/pre>\n
6. \u8abf\u6574SQLite\u914d\u7f6e\u53c3\u6578<\/h2>\n
SQLite\u63d0\u4f9b\u4e86\u4e00\u4e9b\u914d\u7f6e\u53c3\u6578\uff0c\u53ef\u4ee5\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9032\u884c\u8abf\u6574\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u8abf\u6574\u9801\u9762\u5927\u5c0f\u3001\u7de9\u885d\u5340\u5927\u5c0f\u7b49\uff0c\u4ee5\u9069\u61c9\u4e0d\u540c\u7684\u61c9\u7528\u5834\u666f\u3002\u4ee5\u4e0b\u662f\u8abf\u6574\u9801\u9762\u5927\u5c0f\u7684\u793a\u4f8b\uff1a<\/p>\n
PRAGMA page_size = 4096;<\/code><\/pre>\n
7. \u4f7f\u7528\u5167\u5b58\u6578\u64da\u5eab<\/h2>\n
\u5982\u679c\u61c9\u7528\u5834\u666f\u5141\u8a31\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u5167\u5b58\u6578\u64da\u5eab\u3002\u5167\u5b58\u6578\u64da\u5eab\u7684\u8b80\u5beb\u901f\u5ea6\u9060\u5feb\u65bc\u78c1\u789f\u6578\u64da\u5eab\uff0c\u9069\u5408\u9700\u8981\u9ad8\u6027\u80fd\u7684\u61c9\u7528\u3002\u5275\u5efa\u5167\u5b58\u6578\u64da\u5eab\u7684\u793a\u4f8b\uff1a<\/p>\n
sqlite3 :memory:<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
\u63d0\u5347SQLite\u6578\u64da\u5eab\u7684\u57f7\u884c\u6548\u7387\u9700\u8981\u5f9e\u591a\u65b9\u9762\u5165\u624b\uff0c\u5305\u62ec\u4f7f\u7528\u9069\u7576\u7684\u7d22\u5f15\u3001\u6279\u91cf\u63d2\u5165\u6578\u64da\u3001\u512a\u5316\u67e5\u8a62\u8a9e\u53e5\u7b49\u3002\u901a\u904e\u9019\u4e9b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\uff0c\u6eff\u8db3\u61c9\u7528\u9700\u6c42\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684\u670d\u52d9\u5668\u74b0\u5883\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc\u9999\u6e2fVPS<\/a>\u548c\u96f2\u4f3a\u670d\u5668<\/a>\u7684\u8cc7\u8a0a\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u60a8\u7684\u61c9\u7528\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22\u63d0\u5347SQLite\u6578\u64da\u5eab\u57f7\u884c\u6548\u7387\u7684\u65b9\u6cd5\uff0c\u512a\u5316\u67e5\u8a62\u6027\u80fd\uff0c\u6e1b\u5c11\u5ef6\u9072\uff0c\u5be6\u73fe\u66f4\u9ad8\u6548\u7684\u6578\u64da\u8655\u7406\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-189098","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/189098","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=189098"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/189098\/revisions"}],"predecessor-version":[{"id":189099,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/189098\/revisions\/189099"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=189098"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=189098"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=189098"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}