{
string strConnection = "Server=DESKTOP-TH8QSR9;";
strConnection += "initial catalog=test;";
strConnection += "user id=DESKTOP-TH8QSR9\\suchao;";
strConnection += "password=;";
strConnection += "Connect Timeout=5";
strConnection += "user id=DESKTOP-TH8QSR9\\suchao;";
-- \
-- . is it not good to write directly? Concatenate strings with spaces or they are all concatenated
strConnection + = "initial catalog=test;";
when querying SQL, you need to process the data to find the difference. Some units are hours, times, and seconds. For example, when an hour subtracts seconds, the second should be converted to an hour with a difference less than a certain value to send m...
sources of topics and their own ideas related codes Please paste the code text below (do not replace the code with pictures) string cString = "data source=.;initial catalog=project;integrated security=true;"; SqlConnec...
I have a dataset with a size of about 100000. The dataset is rarely added or updated, mainly because of frequent query operations, efficient query, and regardless of memory footprint and preload time. Which solution is better to use SQL or JSON+LINQ? ...
I have a dataset with a size of about 100000. The dataset is rarely added or updated, mainly because of frequent query operations, efficient query, and regardless of memory footprint and preload time. Which solution is better to use SQL or JSON+LINQ? ...
I have a dataset with a size of about 100000. The dataset is rarely added or updated, mainly because of frequent query operations, efficient query, and regardless of memory footprint and preload time. Which solution is better to use SQL or JSON+LINQ? ...