Introduction - If you have any usage issues, please Google them yourself
Windows ADO interface to access the database using the system 1 with the database-independent database access, access to various types of databases (2) The code closed system interface, CADOConnection, CADOQuery, CADOTable, CADOCommand respectively, to achieve database connection, query, execute the command 3, while also achieved the database to insert a picture and read out picture functions