Problem Description:
Sometimes in the table of two or three databases, through the related keywords, queries to obtain the desired recordset, with a general SQL query statement is not implemented, and can be implemented through Access's cross-library query function.
Solution:
For example, "Mage Type" and "Mount" two tables are in different databases, specific query methods, as follows:
@ "SELECT * FROM machine type as a inner join [; database =" appdomain.currentdomain.basedirectory "Machine .ZC]. Mount AS B on A.BH = B.LXBH"
Detailed explanation:
[; Database = path; PWD = 12] .a
Access's cross-library is implemented by brackets, including path, password setting, etc .; cross-library premise is already opened a connection.
