This section explains how to use esProc channel-related functions. You can choose to skip this section if you are not a channel, push, result, attach
A composite table stores data in a special format and has the extension .ctx. Let’s look at how to generate and use a cocomposite table, ctx, create, dimension, attach, append, basetable, attached table, parent table
The f. open() function is used to open a composite table saved as a file: A B 1 =file("D:/file/dw/employees.ctx") 2 composite table, access, create, attach, cursor, icursor, index,joinx