Everyone knows what the default database isolation level of MySQL is, right? Yes, it is RR. But why do major internet ...

The table isn't tremendous but has a lot of columns (~400 or so). Every row has a single unique key that is used to detect conflicts and update rows. This is done in an in-memory database. I noticed ...

过滤点2， 先修改主键，如果为UPD_NODE_NO_ORD_CHANGE update这不做二级索引更改，也就是不调用row_upd_sec_step函数，这是显然的，因为没有二级索引的字段需要更改（函数row_upd_clust_step中实现），这里对应了 场景B， 虽然 c3字段修改了数据，但是c1\c2字段前后的值一样，所以实际索引c1和索引c2不会更改，只修改主键索引。

We are pleased to announce the public preview of Update forms and views feature in table designer. With this new experience, makers can now add columns to their forms and views on the fly, instead of ...

某银行客户在从Oracle迁移到MySQL的开发中，MySQL在READ-COMMITTED隔离级别下，出现了insert阻塞update的情况，但同样的情况下，Oracle的insert则不会阻塞update。本文通过复现该问题，分析MySQL的锁信息，确认是MySQL与Oracle在并发事务处理上的差异，在进行数据库迁移改造的程序开发应予以关注。 1.问题复现 1.1 ...

Volition has released a large update for Saints Row that has a specific focus on stability, Quality of Life, co-op, and gameplay issues.

Deep Silver Volition is releasing a new update for Saints Row and it’s going to be a big one. According to the Patch Hub, the game’s November update will add plenty of features to the game.

Removing duplicates rows from a unique index SQL Server table You can use the index to classify the duplicate data in unique index tables then delete the duplicate records. First, we need to create a ...

Volition has announced a major Saints Row update for next month, and it's aimed at tackling the vast sea of jank in which the game is swimming.

Developer Volition has detailed its Saints Row reboot's first major update, saying that while it would have "preferred to be talking about roadmaps and expansions" at this juncture, it will ...

This guide explains how to create a MySQL database and table using PHP and how to create them manually via phpMyAdmin using XAMPP stack.