我们正在分析一种嵌入式的含水层系统,它将使用大约400兆赫的ARM9处理器。
它将有多个传感器,我们需要将标识写到SQ3号元数据库。 我们估计,可想象的最大负荷量为100至200个数据库,每秒加一。
这是否合理,或者我们是否应该审查我们的领导人?
我们正在分析一种嵌入式的含水层系统,它将使用大约400兆赫的ARM9处理器。
它将有多个传感器,我们需要将标识写到SQ3号元数据库。 我们估计,可想象的最大负荷量为100至200个数据库,每秒加一。
这是否合理,或者我们是否应该审查我们的领导人?
我认为,将原木写成 d是不合理的。 结构数据库的开发假设是经常阅读而不是书写。
I have values being cut off and would like to display the full values. Sqlite3 -column -header locations.dbs " select n.namelist, f.state, t.state from names n left join locations l on l.id = n.id ...
I ve had fine luck using SQLite with straight, direct SQL in Android, but this is the first time I m wrapping a DB in a ContentProvider. I keep getting a null pointer exception when calling ...
I got this error: OperationalError at / unable to open database file Things I ve tried so far are setting the absolute path of my dev.db file in the settings.py. I ve tried adding www-data to my ...
I am in the process of developing a desktop application that needs a database. The application is currently targeted to SQL Express 2005 and works wonderfully. However, I m not crazy about having ...
Optimizing SQLite is tricky. Bulk-insert performance of a C application can vary from 85 inserts per second to over 96,000 inserts per second! Background: We are using SQLite as part of a desktop ...
When we are using any gear enable site, and we go offline the gear automatically creating folder with /dbName#database ... assume 2 diff. website is there www.abc.com and www.xyz.com. when I go ...
How can I get metadata / constraints (primary key and "null allowed" in particular) for each column in a SQLite v2.8 table using PHP5 (like mysql_fetch_field for MySql)? sqlite_fetch_column_types (OO:...
I m working on a Java desktop application that reads and writes from/to different files. I think a better solution would be to replace the file system by a SQLite database. How hard is it to migrate ...