{"id":88,"date":"2017-12-20T10:51:22","date_gmt":"2017-12-20T02:51:22","guid":{"rendered":"http:\/\/www.leohe.net.cn\/?p=88"},"modified":"2019-10-18T23:37:14","modified_gmt":"2019-10-18T15:37:14","slug":"mysql-%e6%89%b9%e9%87%8f%e4%bf%ae%e6%94%b9%e5%ad%97%e6%ae%b5%e7%9a%84%e6%8e%92%e5%ba%8f%e8%a7%84%e5%88%99","status":"publish","type":"post","link":"https:\/\/china-abc.leohe.net.cn\/?p=88","title":{"rendered":"MYSQL \u6279\u91cf\u4fee\u6539\u5b57\u6bb5\u7684\u6392\u5e8f\u89c4\u5219"},"content":{"rendered":"<p>SELECT CONCAT('ALTER TABLE `', table_name, '` MODIFY `', column_name, '` ', DATA_TYPE, '(', CHARACTER_MAXIMUM_LENGTH, ') CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci', (CASE WHEN IS_NULLABLE = 'NO' THEN ' NOT NULL' ELSE '' END), ';')<br \/>\nFROM information_schema.COLUMNS<br \/>\nWHERE TABLE_SCHEMA = 'hr_databus'<br \/>\nAND DATA_TYPE = 'varchar'<br \/>\nAND<br \/>\n(<br \/>\nCHARACTER_SET_NAME != 'utf8mb4'<br \/>\nOR<br \/>\nCOLLATION_NAME != 'utf8mb4_general_cir'<br \/>\n);<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SELECT CONCAT('ALTER TABLE `', table_name, '` MODIFY `' [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[9,5],"tags":[],"_links":{"self":[{"href":"https:\/\/china-abc.leohe.net.cn\/index.php?rest_route=\/wp\/v2\/posts\/88"}],"collection":[{"href":"https:\/\/china-abc.leohe.net.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/china-abc.leohe.net.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/china-abc.leohe.net.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/china-abc.leohe.net.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=88"}],"version-history":[{"count":1,"href":"https:\/\/china-abc.leohe.net.cn\/index.php?rest_route=\/wp\/v2\/posts\/88\/revisions"}],"predecessor-version":[{"id":89,"href":"https:\/\/china-abc.leohe.net.cn\/index.php?rest_route=\/wp\/v2\/posts\/88\/revisions\/89"}],"wp:attachment":[{"href":"https:\/\/china-abc.leohe.net.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=88"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/china-abc.leohe.net.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=88"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/china-abc.leohe.net.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=88"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}