.Q.en[dir;table]
.Q.ens[dir;table;name]

Where

• dir is a symbol handle to a folder
• table is a table
• name is a symbol atom naming a sym file in dir

the function

• creates if necessary the folder dir
• gets sym from dir if it exists
• enumerates against sym the symbols in table
• writes sym in dir
• returns table with columns enumerated (for .Q.ens, against name)

.Q.ens allows enumeration against domains (and therefore filenames) other than sym.

q)([]sym:`mysym$`a`b`c)~.Q.ens[`:db;([]sym:`a`b`c);`mysym]

Tables splayed across a directory must be fully enumerated and not keyed. The solution is to enumerate columns of type varchar before saving the table splayed.