Thanks for the help, Mr. Tirrell. Does JDB have a way to declare the length of the char column?
I've gone through the JDB doc and sample code carefully and can't find any indication of how to declare the length of the char column. I've run a few experiments and can't get a JDB database table which consists of only one char column to accept anything but a single character in each insert. Here's the code: NB. Create a table with only a single char column Create__db 'tblA';0 : 0 c1 char ) NB. Insert a single character Insert__db 'tblA';'a' Insert__db 'tblA';'b' Insert__db 'tblA';'c' NB. works fine, no problem NB. Define another table with a single char column Create__db 'tblB';0 : 0 c1 char ) NB. Insert a string of characters Insert__db 'tblB';'aaaaaaa' |assertion failure: validate | 1=#~.(#@".)&>'active';Tcolmap To summarize: I can't find any doc that outlines how to construct a table with a single char column that accepts multiple characters. Nor can I find any code samples. Various small experiments have failed. Thanks in advance for any help. --chris-- ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
