数据库问题

Is it possible to create a column with a UNIX_TIMESTAMP default in MySQL?(是否可以在 MySQL 中创建一个具有 UNIX_TIMESTAMP 默认值的列?)
Table with 80 million records and adding an index takes more than 18 hours (or forever)! Now what?(包含 8000 万条记录的表并添加索引需要超过 18 小时(或永远)!怎么办?)
How can I tell if a database table is being accessed anymore? Want something like a quot;SELECT triggerquot;(如何判断数据库表是否正在被访问?想要像“选择触发器这样的东西)
Best practices to store CreditCard information into DataBase(将信用卡信息存储到数据库中的最佳实践)
How many database indexes is too many?(多少数据库索引太多了?)
Adding constraints that check a separate (linked) table for a value(添加检查单独(链接)表的值的约束)
SQL Server: One Table with 400 Columns or 40 Tables with 10 Columns?(SQL Server:一张表有 400 列还是 40 表有 10 列?)
Understanding COMPATIBILITY_LEVEL in SQL Server(了解 SQL Server 中的 COMPATIBILITY_LEVEL)
How are varchar values stored in a SQL Server database?(varchar 值如何存储在 SQL Server 数据库中?)
One to Many MySQL(一对多 MySQL)
Should I use MyISAM or InnoDB Tables for my MySQL Database?(我应该为 MySQL 数据库使用 MyISAM 还是 InnoDB 表?)
Storing HTML in SQL Server(在 SQL Server 中存储 HTML)