weixin_44327656的博客

SELECT author_id, # 用户id last_latitude, # 经度 last_longitude, #纬度 ( 3959 * acos ( cos ( radians(22.516218) ) * cos( radians( last_latitude ) ) * cos( radians( last_longitude ) - radians(113.907005) ) + sin ( ra

什么是Canal?什么是Maxwell?Canal和Maxwell对比| 特点 | Canal | Maxwell |

ALTER TABLE `dgdata`.`test` ADD COLUMN `update_time` timestamp(0) NULL DEFAULT CURRENT_TIMESTAMP(0) ON UPDATE CURRENT_TIMESTAMP(0) AFTER `value`,ADD INDEX `update_time`(`update_time`) USING BTREE;...

今天在phoenix 创建表时遇到 ERROR 1004 (42J02): Order of columns in primary key constraint must match the order in which they're declared. columnName=TB_TOURISAATS.ACT_TIMMI这种错误原SQL语句CREATE TABLE tb_test( u...