\u4ee5\u4e0b\u7684\u6587\u7ae0\u4e3b\u8981\u4ecb\u7ecd\u7684\u662fMySQL\u6570\u636e\u5e93\u5c0f\u6280\u5de7\uff0c\u6211\u4eec\u9996\u5148\u662f\u4eceINSERT\u8bed\u6cd5\u5f00\u59cb\u7684\u6765\u5bf9MySQL\u6570\u636e\u5e93\u7684\u4e00\u4e9b\u5c0f\u6280\u5de7\u8fdb\u884c\u8bf4\u660e\uff0c \u6211\u524d\u4e24\u5929\u5728\u76f8\u5173\u7f51\u7ad9\u770b\u89c1\u5176\u76f8\u5173\u7684\u8d44\u6599\uff0c\u89c9\u5f97\u633a\u597d\uff0c\u5c31\u62ff\u51fa\u6765\u4f9b\u5927\u5bb6\u5206\u4eab\u3002<\/p>\n
INSERT\u8bed\u6cd5<\/p>\n
<\/p>\n
\n \n \n\n \n \n
- INSERT [LOW_PRIORITY | DELAYED | HIGH_PRIORITY] [IGNORE] <\/span><\/span><\/li>\n \n \n
- [INTO] tbl_name [(col_name,...)] <\/span><\/li>\n \n \n
- VALUES ({expr | DEFAULT},...),(...),... <\/span><\/li>\n \n \n
- [ ON DUPLICATE KEY UPDATE <\/span>col_name<\/span>=<\/span>expr<\/span>, ... ] <\/span><\/li>\n \n \n <\/ol><\/pre>\n
<\/p>\n
\u6216\uff1a<\/p>\n
<\/p>\n
\n \n \n\n \n \n
- INSERT [LOW_PRIORITY | DELAYED | HIGH_PRIORITY] [IGNORE] <\/span><\/span><\/li>\n \n \n
- [INTO] tbl_name <\/span><\/li>\n \n \n
- SET <\/span>col_name<\/span>={expr | DEFAULT}, ... <\/span><\/li>\n \n \n
- [ ON DUPLICATE KEY UPDATE <\/span>col_name<\/span>=<\/span>expr<\/span>, ... ] <\/span><\/li>\n \n \n <\/ol><\/pre>\n
<\/p>\n
\u6216\uff1a<\/p>\n
\n \n \n\n \n \n
- INSERT [LOW_PRIORITY | HIGH_PRIORITY] [IGNORE] <\/span><\/span><\/li>\n \n \n
- [INTO] tbl_name [(col_name,...)] <\/span><\/li>\n \n \n
- SELECT ... <\/span><\/li>\n \n \n
- [ ON DUPLICATE KEY UPDATE <\/span>col_name<\/span>=<\/span>expr<\/span>, ... ] <\/span><\/li>\n \n \n <\/ol><\/pre>\n
\u4e00\u3001DELAYED \u7684\u4f7f\u7528<\/strong><\/p>\n
\u4f7f\u7528\u5ef6\u8fdf\u63d2\u5165\u64cd\u4f5c<\/p>\n
<\/p>\n
DELAYED\u8c03\u8282\u7b26\u5e94\u7528\u4e8eINSERT\u548cREPLACE\u8bed\u53e5\u3002\u5f53DELAYED\u63d2\u5165\u64cd\u4f5c\u5230\u8fbe\u7684\u65f6\u5019\uff0c<\/p>\n
<\/p>\n
\u670d\u52a1\u5668\u628a\u6570\u636e\u884c\u653e\u5165\u4e00\u4e2a\u961f\u5217\u4e2d\uff0c\u5e76\u7acb\u5373\u7ed9\u5ba2\u6237\u7aef\u8fd4\u56de\u4e00\u4e2a\u72b6\u6001\u4fe1\u606f\uff0c\u8fd9\u6837\u5ba2\u6237<\/p>\n
<\/p>\n
\u7aef\u5c31\u53ef\u4ee5\u5728\u6570\u636e\u8868\u88ab\u771f\u6b63\u5730\u63d2\u5165\u8bb0\u5f55\u4e4b\u524d\u7ee7\u7eed\u8fdb\u884c\u64cd\u4f5c\u4e86\u3002\u5982\u679c\u8bfb\u53d6\u8005\u4ece\u8be5\u6570\u636e<\/p>\n
<\/p>\n
\u8868\u4e2d\u8bfb\u53d6\u6570\u636e\uff0c\u961f\u5217\u4e2d\u7684\u6570\u636e\u5c31\u4f1a\u88ab\u4fdd\u6301\u7740\uff0c\u76f4\u5230\u6ca1\u6709\u8bfb\u53d6\u8005\u4e3a\u6b62\u3002\u63a5\u7740\u670d\u52a1\u5668<\/p>\n
<\/p>\n
\u5f00\u59cb\u63d2\u5165\u5ef6\u8fdf\u6570\u636e\u884c\uff08delayed-row\uff09\u961f\u5217\u4e2d\u7684\u6570\u636e\u884c\u3002\u5728\u63d2\u5165\u64cd\u4f5c\u7684\u540c\u65f6\uff0c\u670d\u52a1\u5668<\/p>\n
<\/p>\n
\u8fd8\u8981\u68c0\u67e5\u662f\u5426\u6709\u65b0\u7684\u8bfb\u53d6\u8bf7\u6c42\u5230\u8fbe\u548c\u7b49\u5f85\u3002\u5982\u679c\u6709\uff0c\u5ef6\u8fdf\u6570\u636e\u884c\u961f\u5217\u5c31\u88ab\u6302\u8d77\uff0c<\/p>\n
<\/p>\n
\u5141\u8bb8\u8bfb\u53d6\u8005\u7ee7\u7eed\u64cd\u4f5c\u3002\u5f53\u6ca1\u6709\u8bfb\u53d6\u8005\u7684\u65f6\u5019\uff0c\u670d\u52a1\u5668\u518d\u6b21\u5f00\u59cb\u63d2\u5165\u5ef6\u8fdf\u7684\u6570\u636e\u884c\u3002<\/p>\n
<\/p>\n
\u8fd9\u4e2a\u8fc7\u7a0b\u4e00\u76f4\u8fdb\u884c\uff0c\u76f4\u5230\u961f\u5217\u7a7a\u4e86\u4e3a\u6b62\u3002<\/p>\n
<\/p>\n
\u51e0\u70b9\u8981\u6ce8\u610f\u4e8b\u9879\uff1a <\/strong><\/p>\n
<\/p>\n
INSERT DELAYED\u5e94\u8be5\u4ec5\u7528\u4e8e\u6307\u5b9a\u503c\u6e05\u5355\u7684INSERT\u8bed\u53e5\u3002\u670d\u52a1\u5668\u5ffd\u7565\u7528\u4e8eINSERT DELAYED...SELECT\u8bed\u53e5\u7684DELAYED\u3002<\/p>\n
<\/p>\n
\u670d\u52a1\u5668\u5ffd\u7565\u7528\u4e8eINSERT DELAYED...ON DUPLICATE UPDATE\u8bed\u53e5\u7684DELAYED\u3002<\/p>\n
<\/p>\n
\u56e0\u4e3a\u5728\u884c\u88ab\u63d2\u5165\u524d\uff0c\u8bed\u53e5\u7acb\u523b\u8fd4\u56de\uff0c\u6240\u4ee5\u60a8\u4e0d\u80fd\u4f7f\u7528LAST_INSERT_ID()\u6765\u83b7\u53d6AUTO_INCREMENT\u503c\u3002AUTO_INCREMENT\u503c\u53ef\u80fd\u7531\u8bed\u53e5\u751f\u6210\u3002<\/p>\n
<\/p>\n
\u5bf9\u4e8eSELECT\u8bed\u53e5\uff0cDELAYED\u884c\u4e0d\u53ef\u89c1\uff0c\u76f4\u5230\u8fd9\u4e9b\u884c\u786e\u5b9e\u88ab\u63d2\u5165\u4e86\u4e3a\u6b62\u3002<\/p>\n
<\/p>\n
DELAYED\u5728\u4ece\u5c5e\u590d\u5236\u670d\u52a1\u5668\u4e2d\u88ab\u5ffd\u7565\u4e86\uff0c\u56e0\u4e3aDELAYED\u4e0d\u4f1a\u5728\u4ece\u5c5e\u670d\u52a1\u5668\u4e2d\u4ea7\u751f\u4e0e\u4e3b\u670d\u52a1\u5668\u4e0d\u4e00\u6837\u7684\u6570\u636e\u3002<\/p>\n
<\/p>\n
\u6ce8\u610f\uff0c\u76ee\u524d\u5728\u961f\u5217\u4e2d\u7684\u5404\u884c\u53ea\u4fdd\u5b58\u5728\u5b58\u50a8\u5668\u4e2d\uff0c\u76f4\u5230\u5b83\u4eec\u88ab\u63d2\u5165\u5230\u8868\u4e2d\u4e3a\u6b62\u3002\u8fd9\u610f\u5473\u7740\uff0c\u5982\u679c\u60a8\u5f3a\u884c\u4e2d\u6b62\u4e86MySQLd\uff08\u4f8b\u5982\uff0c\u4f7f\u7528kill -9\uff09<\/p>\n
<\/p>\n
\u6216\u8005\u5982\u679cMySQLd\u610f\u5916\u505c\u6b62\uff0c\u5219\u6240\u6709\u6ca1\u6709\u88ab\u5199\u5165\u78c1\u76d8\u7684\u884c\u90fd\u4f1a\u4e22\u5931\u3002<\/p>\n
<\/p>\n
\u4e8c\u3001IGNORE\u7684\u4f7f\u7528 <\/strong><\/p>\n
<\/p>\n
IGNORE\u662fMySQL\u6570\u636e\u5e93\u76f8\u5bf9\u4e8e\u6807\u51c6SQL\u7684\u6269\u5c55\u3002\u5982\u679c\u5728\u65b0\u8868\u4e2d\u6709\u91cd\u590d\u5173\u952e\u5b57\uff0c<\/p>\n
<\/p>\n
\u6216\u8005\u5f53STRICT\u6a21\u5f0f\u542f\u52a8\u540e\u51fa\u73b0\u8b66\u544a\uff0c\u5219\u4f7f\u7528IGNORE\u63a7\u5236ALTER TABLE\u7684\u8fd0\u884c\u3002<\/p>\n
<\/p>\n
\u5982\u679c\u6ca1\u6709\u6307\u5b9aIGNORE\uff0c\u5f53\u91cd\u590d\u5173\u952e\u5b57\u9519\u8bef\u53d1\u751f\u65f6\uff0c\u590d\u5236\u64cd\u4f5c\u88ab\u653e\u5f03\uff0c\u8fd4\u56de\u524d\u4e00\u6b65\u9aa4\u3002<\/p>\n
<\/p>\n
\u5982\u679c\u6307\u5b9a\u4e86IGNORE\uff0c\u5219\u5bf9\u4e8e\u6709\u91cd\u590d\u5173\u952e\u5b57\u7684\u884c\uff0c\u53ea\u4f7f\u7528***\u884c\uff0c\u5176\u5b83\u6709\u51b2\u7a81\u7684\u884c\u88ab\u5220\u9664\u3002<\/p>\n
<\/p>\n
\u5e76\u4e14\uff0c\u5bf9\u9519\u8bef\u503c\u8fdb\u884c\u4fee\u6b63\uff0c\u4f7f\u4e4b\u5c3d\u91cf\u63a5\u8fd1\u6b63\u786e\u503c\u3002<\/p>\n
<\/p>\n
insert ignore into tb(...) value(...)<\/p>\n
<\/p>\n
\u8fd9\u6837\u4e0d\u7528\u6821\u9a8c\u662f\u5426\u5b58\u5728\u4e86\uff0c\u6709\u5219\u5ffd\u7565\uff0c\u65e0\u5219\u6dfb\u52a0<\/p>\n
<\/p>\n
\u4e09\u3001ON DUPLICATE KEY UPDATE\u7684\u4f7f\u7528<\/strong><\/p>\n
\u5982\u679c\u60a8\u6307\u5b9a\u4e86ON DUPLICATE KEY UPDATE\uff0c\u5e76\u4e14\u63d2\u5165\u884c\u540e\u4f1a\u5bfc\u81f4\u5728\u4e00\u4e2aUNIQUE\u7d22\u5f15\u6216PRIMARY KEY\u4e2d\u51fa\u73b0\u91cd\u590d\u503c\uff0c\u5219\u6267\u884c\u65e7\u884cUPDATE\u3002\u4f8b\u5982\uff0c\u5982\u679c\u5217a\u88ab\u5b9a\u4e49\u4e3aUNIQUE\uff0c\u5e76\u4e14\u5305\u542b\u503c1\uff0c\u5219\u4ee5\u4e0b\u4e24\u4e2a\u8bed\u53e5\u5177\u6709\u76f8\u540c\u7684\u6548\u679c\uff1a<\/p>\n
<\/p>\n
<\/p>\n
\n \n \n\n \n \n
- MySQL<\/span>><\/span> INSERT INTO table (a,b,c) VALUES (1,2,3) <\/span><\/span><\/li>\n \n \n
- -<\/span>><\/span> ON DUPLICATE KEY UPDATE <\/span>c<\/span>c<\/span>=c+1; <\/span><\/li>\n \n \n
- MySQL<\/span>><\/span> UPDATE table SET <\/span>c<\/span>c<\/span>=c+1 WHERE <\/span>a<\/span>=<\/span>1<\/span>; <\/span><\/li>\n \n \n <\/ol><\/pre>\n
<\/p>\n
\u5982\u679c\u884c\u4f5c\u4e3a\u65b0\u8bb0\u5f55\u88ab\u63d2\u5165\uff0c\u5219\u53d7\u5f71\u54cd\u884c\u7684\u503c\u4e3a1\uff1b\u5982\u679c\u539f\u6709\u7684\u8bb0\u5f55\u88ab\u66f4\u65b0\uff0c\u5219\u53d7\u5f71\u54cd\u884c\u7684\u503c\u4e3a2\u3002<\/p>\n
<\/p>\n
\u6ce8\u91ca\uff1a\u5982\u679c\u5217b\u4e5f\u662f***\u5217\uff0c\u5219INSERT\u4e0e\u6b64UPDATE\u8bed\u53e5\u76f8\u5f53\uff1a<\/p>\n
<\/p>\n
\n \n \n\n \n \n
- MySQL<\/span>><\/span> UPDATE table SET <\/span>c<\/span>c<\/span>=c+1 WHERE <\/span>a<\/span>=<\/span>1<\/span> OR <\/span>b<\/span>=<\/span>2<\/span> LIMIT 1; <\/span><\/span><\/li>\n \n \n <\/ol><\/pre>\n
<\/p>\n
\u5982\u679ca=1 OR b=2\u4e0e\u591a\u4e2a\u884c\u5411\u5339\u914d\uff0c\u5219\u53ea\u6709\u4e00\u4e2a\u884c\u88ab\u66f4\u65b0\u3002\u901a\u5e38\uff0c\u60a8\u5e94\u8be5\u5c3d\u91cf\u907f\u514d\u5bf9\u5e26\u6709\u591a\u4e2a***\u5173\u952e\u5b57\u7684\u8868\u4f7f\u7528ON DUPLICATE KEY\u5b50\u53e5\u3002<\/p>\n
<\/p>\n
\u60a8\u53ef\u4ee5\u5728UPDATE\u5b50\u53e5\u4e2d\u4f7f\u7528VALUES(col_name)\u51fd\u6570\u4eceINSERT...UPDATE\u8bed\u53e5\u7684INSERT\u90e8\u5206\u5f15\u7528\u5217\u503c\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u5982\u679c\u6ca1\u6709\u53d1\u751f\u91cd\u590d\u5173\u952e\u5b57\u51b2\u7a81\uff0c\u5219UPDATE\u5b50\u53e5\u4e2d\u7684VALUES(col_name)\u53ef\u4ee5\u5f15\u7528\u88ab\u63d2\u5165\u7684col_name\u7684\u503c\u3002\u672c\u51fd\u6570\u7279\u522b\u9002\u7528\u4e8e\u591a\u884c\u63d2\u5165\u3002VALUES()\u51fd\u6570\u53ea\u5728INSERT...UPDATE\u8bed\u53e5\u4e2d\u6709\u610f\u4e49\uff0c\u5176\u5b83\u65f6\u5019\u4f1a\u8fd4\u56deNULL\u3002<\/p>\n
<\/p>\n
\u793a\u4f8b\uff1a<\/p>\n
<\/p>\n
\n \n \n\n \n \n
- MySQL<\/span>><\/span> INSERT INTO table (a,b,c) VALUES (1,2,3),(4,5,6) <\/span><\/span><\/li>\n \n \n
- -<\/span>><\/span> ON DUPLICATE KEY UPDATE <\/span>c<\/span>=<\/span>VALUES<\/span>(a)+VALUES(b); <\/span><\/li>\n \n \n <\/ol><\/pre>\n
<\/p>\n
\u672c\u8bed\u53e5\u4e0e\u4ee5\u4e0b\u4e24\u4e2a\u8bed\u53e5\u4f5c\u7528\u76f8\u540c\uff1a<\/p>\n
<\/p>\n
\n \n \n\n \n \n
- MySQL<\/span>><\/span> INSERT INTO table (a,b,c) VALUES (1,2,3) <\/span><\/span><\/li>\n \n \n
- -<\/span>><\/span> ON DUPLICATE KEY UPDATE <\/span>c<\/span>=<\/span>3<\/span>; <\/span><\/li>\n \n \n
- MySQL<\/span>><\/span> INSERT INTO table (a,b,c) VALUES (4,5,6) <\/span><\/li>\n \n \n
- -<\/span>><\/span> ON DUPLICATE KEY UPDATE <\/span>c<\/span>=<\/span>9<\/span>; <\/span><\/li>\n \n \n <\/ol><\/pre>\n
<\/p>\n
\u5f53\u60a8\u4f7f\u7528ON DUPLICATE KEY UPDATE\u65f6\uff0cDELAYED\u9009\u9879\u88ab\u5ffd\u7565\u3002<\/p>\n
<\/p>\n
\u4ee5\u4e0a\u7684\u76f8\u5173\u5185\u5bb9\u5c31\u662f\u5bf9MySQL\u6570\u636e\u5e93\u7684\u4ecb\u7ecd\uff0c\u671b\u4f60\u80fd\u6709\u6240\u6536\u83b7\u3002 <\/p>\n
\u3010\u7f16\u8f91\u63a8\u8350\u3011<\/p>\n
\n
- MySQL mysqldump\u547d\u4ee4\u7684\u6b63\u786e\u5e94\u7528<\/li>\n
- \u4f7f\u7528MySQL \u6570\u636e\u5e93\u51fa\u73b0\u7684\u56f0\u96be\u89e3\u51b3<\/li>\n
- \u5b9e\u73b0MySQL \u7528\u6237\u5bc6\u7801\u7684\u8bbe\u7f6e\u6b65\u9aa4<\/li>\n
- MySQL\u6570\u636e\u5e93\u5b89\u5168\u8bbe\u7f6e\u7684\u64cd\u4f5c\u6d41\u7a0b<\/li>\n
- MySQL\u57fa\u672c\u64cd\u4f5c\uff0c\u65b0\u624b\u5165\u95e8\u5b9d\u5178<\/li>\n<\/ol>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4ee5\u4e0b\u7684\u6587\u7ae0\u4e3b\u8981\u4ecb\u7ecd\u7684\u662fMySQL\u6570\u636e\u5e93\u5c0f\u6280\u5de7\uff0c\u6211\u4eec\u9996\u5148\u662f\u4eceINSERT\u8bed\u6cd5\u5f00\u59cb\u7684\u6765\u5bf9MySQL\u6570\u636e\u5e93\u7684\u4e00\u4e9b\u5c0f\u6280 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7038],"tags":[],"class_list":["post-316392","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/316392","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=316392"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/316392\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=316392"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=316392"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=316392"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}