02 2021 档案

ERROR: canceling statement due to conflict with recovery
摘要：ERROR: canceling statement due to conflict with recovery 报错现象 ERROR: canceling statement due to conflict with recovery DETAIL: User query might have n 阅读全文
posted @ 2021-02-24 10:00 单调枯燥的CC 阅读(950) 评论(0) 推荐(0)
mybase修改默认的markdown样式
摘要：mybase原来的样式备份 /* CSS for Markdown Document Renderer The stylesheet code must conform to the W3C/CSS Specs. (https://www.w3.org/Style/CSS/) It's recomm 阅读全文
posted @ 2021-02-23 17:00 单调枯燥的CC 阅读(1396) 评论(0) 推荐(0)
for update 和 for update nowait的区别
摘要：for update 和 for update nowait的相同点 对操作的数据行进行加锁，在事务提交前防止其他操作对数据的修改 使用for update 测试工具 pgadmin，打开SQL窗口，关闭事务的自动提交,改成手动提交事务 select * from table1 where id = 阅读全文
posted @ 2021-02-01 10:13 单调枯燥的CC 阅读(371) 评论(0) 推荐(0)