database
Using NoSQL database for relational purpose
Non-relational databases are attracting more attention day by day. The main limitation is that today\'s complicated data are indeed connected. Isn\'t it convenient to connect databases as we connect t[详细]
2023-04-13 09:59 分类：问答MongoDB's NumberLong only 54 bit signed?
Is a MongoDB\'s NumberLong really 64 bit signed integer really 64 bit? MongoDB\'s NumberLong is said to be a 64 bit signed integer, which should mean we can play with -2^开发者_运维问答63 <= x <[详细]
2023-04-13 09:54 分类：问答How can I separate the condition within a LINQ to SQL query?
I am using ASP.NET with C# and I need to make the condition of the query dynamic, Example: Database: NameSex[详细]
2023-04-13 09:54 分类：问答Problems updating mySQL DB
Okay, so I have successfully retrieved rows from my db where i have fields : ref,fname,lname,event1,event2,event3.[详细]
2023-04-13 09:49 分类：问答Selecting closest surrounding rows (above/below) with SQL from a MySQL database resultset
I\'m trying to retrieve the closest adjacent rows (above and below) a record in a result set that match a certain condition.[详细]
2023-04-13 09:48 分类：问答Putting a new web interface on an old fat-client database
My company has a fairly old fat client application written in Delphi. We are very interested in replacing it with a shiny new web application. This will make maintenance a breeze and many clients want[详细]
2023-04-13 09:02 分类：问答Query outputting more records than it should do
I have an SQL query wtih a lot of joins. The fact is that before the query had to join the StudentClass table and Class table, it outputted the correct amount of rows which should be 4 rows. But when[详细]
2023-04-13 08:46 分类：问答SQL: Get all missing date records from database
I have a DB table with the following structure id | dateCreated | numOfUsers Where a typical row is 1, \'2011-10-13 12:00:00\', 4[详细]
2023-04-13 08:46 分类：问答php framework for querying data from remote db [closed]
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.[详细]
2023-04-13 08:40 分类：问答Is there a way to access to the database of Google Maps for the public transport?
I\'d like to have access to the numbers and type of public transportation and for each of them, their stops of a certain city. So for instance, I\'d like to have :[详细]
2023-04-13 08:27 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
加载中,请稍侯......