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- 衰减的单位dB是什么意思？ - 知乎
如果我们用dB来表示的话，第一种情况增大了3dB，而第二种情况增大了10 4dB，更能客观地反映出人的感官的感觉特性。 而在电子工程技术领域，dB是国际上统一使用的电信传输单位。
- File extension . DB - What kind of database is it exactly?
If you're on a Unix-like platform (Mac OS X, Linux, etc), you could try running file myfile db to see if that can figure out what type of file it is The file utility will inspect the beginning of the file, looking for any clues like magic numbers, headers, and so on to determine the type of the file
- *. db是什么文件，如何打开？ - 知乎
后缀是 db的文件是数据库文件，db是datebase的缩写，datebase的意思就是数据库。 数据库类型包括： 关系数据库、非关系型数据库（NoSQL） 关系型的有：Oracle，MySQL， SQLServer 等 非关系型有：Redis， mongoDB 有专门数据库管理和设计工具可以打开，比如说：Navicat就可以打开
- 伯德图（Bode Plot）的原理解析以及工程化方法
从上图，我们可以看到，Bode图由两部分组成，上半部分为幅频图，下半部分为相频图。那么我们就从这两个方向出发，彻底讲清楚Bode，并搞清楚怎么进行工程化！
- How do I see active SQL Server connections? - Stack Overflow
I am using SQL Server 2008 Enterprise I want to see any active SQL Server connections, and the related information of all the connections, like from which IP address, connect to which database or
- Reset identity seed after deleting records in SQL Server
I have inserted records into a SQL Server database table The table had a primary key defined and the auto increment identity seed is set to “Yes” This is done primarily because in SQL Azure, each
- sql server - Get size of all tables in database - Stack Overflow
I have inherited a fairly large SQL Server database It seems to take up more space than I would expect, given the data it contains Is there an easy way to determine how much space on disk each t
- ORA-28000: the account is locked error getting frequently
ORA-28000: the account is locked Is this a DB Issue ? Whenever I unlock the user account using the alter SQL query, that is ALTER USER username ACCOUNT UNLOCK, it will be temporarily OK Then after sometime the same account gets locked again The database is using oracle XE version Does anybody else have the same issue?
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