{"id":152186,"date":"2020-09-07T05:57:48","date_gmt":"2020-09-06T21:57:48","guid":{"rendered":"http:\/\/4563.org\/?p=152186"},"modified":"2020-09-07T05:57:48","modified_gmt":"2020-09-06T21:57:48","slug":"mysql-%e5%a4%87%e4%bb%bd%e5%90%8c%e6%ad%a5","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=152186","title":{"rendered":"mysql \u5907\u4efd\u540c\u6b65"},"content":{"rendered":"<div>\n<div>\n<div>\n<h1>                  mysql \u5907\u4efd\u540c\u6b65               <\/h1>\n<p> <\/p>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : shimingzhoudf <\/span>  <span><i><\/i> 1<\/span> <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div isfirst=\"1\"> <\/p>\n<p>A \u8868\u6709 1\uff0c2\uff0c3\uff0c4\uff0c5 \u4e2a\u5b57\u6bb5\u3002\u73b0\u5728\u540c\u6b65\u4e86 1\uff0c2 \u5b57\u6bb5\u5230 B \u8868\uff0c\u6570\u636e\u4e5f\u540c\u6b65\u8fc7\u53bb\u4e86 \u73b0\u5728\u9700\u6c42\u662f\uff0c\u6211\u9700\u8981\u628a 3 \u5b57\u6bb5\u548c\u6570\u636e\u5f04\u5230 B \u8868\u4e2d\uff0c\u6bcf\u884c\u6309\u539f\u6765 A \u8868\u5bf9\u5e94<\/p>\n<\/p><\/div>\n<div> <b>\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (<span>2<\/span>)        <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<ul>\n<li data-pid=\"3190154\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : kefirzhang <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             \u4f60\u8fd9\u4e2a\u6807\u9898\u8d77\u7684\u597d\u50cf\u8ddf\u5185\u5bb9\u4e0d\u662f\u5f88\u5bf9\uff0c\u4e0d\u77e5\u9053\u4f60\u5230\u5e95\u60f3\u5e72\u4ec0\u4e48\uff0c\u6211\u6700\u540e\u7684\u731c\u60f3\u4f60\u53ef\u80fd\u662f\u8981\u66f4\u65b0 B \u8868\u7684\u6570\u636e\uff1a<br \/>\u76f4\u63a5 update \u5c31\u53ef\u4ee5\u4e86\u3002\u5c31\u50cf\u4e0b\u9762\u7684 sql \u53e5\u5b50\u4e00\u6837\uff08 ab \u4e92\u6362\uff09<br \/>Update a<br \/>Set a.importantField = b.importantField<br \/>From a Join b <br \/> On a.matchfield = b.matchfield<br \/> And a.matchfield2 = b.matchfield2                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"3190155\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : twinsdestiny <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             B \u8868\u5efa 3 \u5b57\u6bb5\uff0c\u6839\u636e 1\uff0c2 \u5b57\u6bb5\u4ece A \u8868\u66f4\u65b0\u5c31\u597d\u4e86\uff0c\u8fd8\u662f\u8bf4 1\uff0c2 \u5b57\u6bb5\u65e0\u6cd5\u786e\u5b9a\u552f\u4e00                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li>\n","protected":false},"excerpt":{"rendered":"<p>mysql \u5907\u4efd\u540c\u6b65 \u8cc7\u6df1\u5927\u4f6c :&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/152186"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=152186"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/152186\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=152186"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=152186"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=152186"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}