{"id":76048,"date":"2024-10-16T03:25:17","date_gmt":"2024-10-15T19:25:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/76048\/"},"modified":"2024-10-16T03:25:17","modified_gmt":"2024-10-15T19:25:17","slug":"mysql-%e8%a4%87%e8%a3%bd%e8%a1%a8%e7%9a%84%e5%b9%be%e7%a8%ae%e6%96%b9%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/76048\/","title":{"rendered":"MySQL \u8907\u88fd\u8868\u7684\u5e7e\u7a2e\u65b9\u5f0f"},"content":{"rendered":"

MySQL \u8907\u88fd\u8868\u7684\u5e7e\u7a2e\u65b9\u5f0f<\/h1>\n

\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0cMySQL \u662f\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u3002\u7576\u9700\u8981\u5728\u4e0d\u540c\u7684\u74b0\u5883\u4e2d\u8907\u88fd\u6578\u64da\u6642\uff0c\u8907\u88fd\u8868\u7684\u6280\u8853\u8b8a\u5f97\u5c24\u70ba\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5e7e\u7a2e\u5728 MySQL \u4e2d\u8907\u88fd\u8868\u7684\u65b9\u5f0f\uff0c\u5e6b\u52a9\u7528\u6236\u66f4\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u3002<\/p>\n

1. \u4f7f\u7528 CREATE TABLE \u8a9e\u53e5<\/h2>\n

\u6700\u57fa\u672c\u7684\u8907\u88fd\u8868\u65b9\u6cd5\u662f\u4f7f\u7528 CREATE TABLE<\/code> \u8a9e\u53e5\u3002\u9019\u7a2e\u65b9\u6cd5\u53ef\u4ee5\u5275\u5efa\u4e00\u500b\u65b0\u8868\uff0c\u4e26\u5c07\u539f\u8868\u7684\u7d50\u69cb\u8907\u88fd\u904e\u4f86\u3002\u4ee5\u4e0b\u662f\u57fa\u672c\u7684\u8a9e\u6cd5\uff1a<\/p>\n

CREATE TABLE new_table AS SELECT * FROM original_table;<\/code><\/pre>\n
\u9019\u689d\u8a9e\u53e5\u6703\u5275\u5efa\u4e00\u500b\u540d\u70ba new_table<\/code> \u7684\u65b0\u8868\uff0c\u4e26\u5c07 original_table<\/code> \u4e2d\u7684\u6240\u6709\u6578\u64da\u8907\u88fd\u904e\u4f86\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u9019\u7a2e\u65b9\u6cd5\u4e0d\u6703\u8907\u88fd\u7d22\u5f15\u548c\u7d04\u675f\u689d\u4ef6\u3002<\/p>\n
2. \u4f7f\u7528 INSERT INTO \u8a9e\u53e5<\/h2>\n
\u5982\u679c\u5df2\u7d93\u5b58\u5728\u4e00\u500b\u65b0\u8868\uff0c\u4e26\u5e0c\u671b\u5c07\u6578\u64da\u5f9e\u539f\u8868\u8907\u88fd\u5230\u65b0\u8868\uff0c\u53ef\u4ee5\u4f7f\u7528 INSERT INTO<\/code> \u8a9e\u53e5\u3002\u4ee5\u4e0b\u662f\u793a\u4f8b\uff1a<\/p>\n
INSERT INTO new_table SELECT * FROM original_table;<\/code><\/pre>\n
\u9019\u689d\u8a9e\u53e5\u6703\u5c07 original_table<\/code> \u4e2d\u7684\u6240\u6709\u6578\u64da\u63d2\u5165\u5230\u5df2\u5b58\u5728\u7684 new_table<\/code> \u4e2d\u3002\u9019\u7a2e\u65b9\u6cd5\u9069\u5408\u5728\u65b0\u8868\u5df2\u7d93\u5b58\u5728\u4e14\u9700\u8981\u586b\u5145\u6578\u64da\u7684\u60c5\u6cc1\u4e0b\u4f7f\u7528\u3002<\/p>\n
3. \u4f7f\u7528 mysqldump \u5de5\u5177<\/h2>\n
\u5c0d\u65bc\u9700\u8981\u5728\u4e0d\u540c MySQL \u4f3a\u670d\u5668\u4e4b\u9593\u8907\u88fd\u8868\u7684\u60c5\u6cc1\uff0c\u53ef\u4ee5\u4f7f\u7528 mysqldump<\/code> \u5de5\u5177\u3002\u9019\u662f\u4e00\u500b\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u53ef\u4ee5\u5c0e\u51fa\u6578\u64da\u5eab\u6216\u8868\u7684\u7d50\u69cb\u548c\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 mysqldump<\/code> \u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n
mysqldump -u username -p database_name original_table > dump_file.sql<\/code><\/pre>\n
\u9019\u689d\u547d\u4ee4\u6703\u5c07 original_table<\/code> \u7684\u6578\u64da\u5c0e\u51fa\u5230\u4e00\u500b\u540d\u70ba dump_file.sql<\/code> \u7684\u6587\u4ef6\u4e2d\u3002\u63a5\u4e0b\u4f86\uff0c\u53ef\u4ee5\u5728\u76ee\u6a19\u4f3a\u670d\u5668\u4e0a\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5c0e\u5165\u6578\u64da\uff1a<\/p>\n
mysql -u username -p database_name < dump_file.sql<\/code><\/pre>\n
\u9019\u7a2e\u65b9\u6cd5\u9069\u5408\u65bc\u9700\u8981\u5728\u4e0d\u540c\u4f3a\u670d\u5668\u4e4b\u9593\u9032\u884c\u6578\u64da\u9077\u79fb\u7684\u60c5\u6cc1\u3002<\/p>\n
4. \u4f7f\u7528 SELECT INTO OUTFILE \u548c LOAD DATA INFILE<\/h2>\n
\u53e6\u4e00\u7a2e\u6709\u6548\u7684\u8907\u88fd\u8868\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 SELECT INTO OUTFILE<\/code> \u548c LOAD DATA INFILE<\/code>\u3002\u9019\u7a2e\u65b9\u6cd5\u53ef\u4ee5\u5c07\u6578\u64da\u5c0e\u51fa\u5230\u6587\u4ef6\u4e2d\uff0c\u7136\u5f8c\u518d\u5f9e\u6587\u4ef6\u4e2d\u5c0e\u5165\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u793a\u4f8b\uff1a<\/p>\n
SELECT * INTO OUTFILE '\/path\/to\/file.csv' FROM original_table;<\/code><\/pre>\n
\u9019\u689d\u547d\u4ee4\u6703\u5c07 original_table<\/code> \u7684\u6578\u64da\u5c0e\u51fa\u5230\u6307\u5b9a\u7684 CSV \u6587\u4ef6\u4e2d\u3002\u7136\u5f8c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5c07\u6578\u64da\u5c0e\u5165\u5230\u65b0\u8868\uff1a<\/p>\n
LOAD DATA INFILE '\/path\/to\/file.csv' INTO TABLE new_table;<\/code><\/pre>\n
\u9019\u7a2e\u65b9\u6cd5\u9069\u5408\u65bc\u9700\u8981\u5c07\u6578\u64da\u5c0e\u51fa\u5230\u6587\u4ef6\u4e26\u9032\u884c\u5f8c\u7e8c\u8655\u7406\u7684\u60c5\u6cc1\u3002<\/p>\n
5. \u4f7f\u7528\u89f8\u767c\u5668<\/h2>\n
\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u9700\u8981\u5728\u6578\u64da\u63d2\u5165\u6216\u66f4\u65b0\u6642\u81ea\u52d5\u8907\u88fd\u6578\u64da\u3002\u9019\u6642\u53ef\u4ee5\u4f7f\u7528\u89f8\u767c\u5668\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u89f8\u767c\u5668\u7684\u793a\u4f8b\uff1a<\/p>\n
CREATE TRIGGER after_insert\nAFTER INSERT ON original_table\nFOR EACH ROW\nBEGIN\n    INSERT INTO new_table (column1, column2) VALUES (NEW.column1, NEW.column2);\nEND;<\/code><\/pre>\n
\u9019\u500b\u89f8\u767c\u5668\u6703\u5728\u6bcf\u6b21\u5411 original_table<\/code> \u63d2\u5165\u6578\u64da\u5f8c\uff0c\u81ea\u52d5\u5c07\u76f8\u61c9\u7684\u6578\u64da\u63d2\u5165\u5230 new_table<\/code> \u4e2d\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5728 MySQL \u4e2d\uff0c\u6709\u591a\u7a2e\u65b9\u6cd5\u53ef\u4ee5\u8907\u88fd\u8868\uff0c\u5f9e\u57fa\u672c\u7684 CREATE TABLE<\/code> \u548c INSERT INTO<\/code> \u8a9e\u53e5\uff0c\u5230\u4f7f\u7528 mysqldump<\/code> \u5de5\u5177\u548c\u89f8\u767c\u5668\u7b49\u9032\u968e\u6280\u8853\u3002\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8\u6578\u64da\u7ba1\u7406\u7684\u6548\u7387\u3002\u5982\u679c\u60a8\u9700\u8981\u9032\u4e00\u6b65\u4e86\u89e3 \u9999\u6e2fVPS<\/a> \u53ca\u5176\u76f8\u95dc\u670d\u52d9\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22 MySQL \u8907\u88fd\u8868\u7684\u5e7e\u7a2e\u65b9\u5f0f\uff0c\u4e86\u89e3\u5982\u4f55\u9ad8\u6548\u5730\u8907\u88fd\u6578\u64da\u4ee5\u63d0\u5347\u6578\u64da\u7ba1\u7406\u548c\u5099\u4efd\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-76048","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76048","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=76048"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76048\/revisions"}],"predecessor-version":[{"id":76049,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76048\/revisions\/76049"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=76048"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=76048"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=76048"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}