Data room charging system-generation of strings for report and database connection

The string generated by the connection between the report and the database. The operation fails. Although I don't know why, I can solve it.

First, the database connection string statement cannot be implemented.

 

 

 

Operation failed. The string was not successfully generated and no connection was established with the database.

 

 

The second option is acceptable.

 

Creates a string to connect to the database.

 

Create an SQL statement

 

If the test succeeds, the report is connected to the database. You can view the information in the checkday_info table.

 

 

Generate the table corresponding to the checkday_info table in the report.

 

The report interacts with the database !.

 

 

Recommended connections:

Report creation: http://rong1224017082.blog.163.com/blog/static/18630240420129642421232/

Report parameter settings: http://blog.csdn.net/xiaoxian8023/article/details/6689474