Используя Yap Prolog 6.2.0 и MySQL 5.1.41 и пытаясь использовать db_open
.
http://www.dcc.fc.up.pt/~vsc/Yap/documentation.html#MYDDAS
Источник пролога:
:- use_module(library(myddas)).
:- trace, db_open(mysql, x, localhost/myschema, web, mypassword),
write('got it'), nl.
След неисправности:
?- db_open(mysql,x,localhost/myschema,web,mypassword).
(1) call:db_open(mysql,x,localhost/myschema,web,mypassword) ?
(2) call:myddas:db_open(mysql,x,localhost/myschema/0/_131406,web,mypassword) ?
(3) call:myddas_errors:'$error_checks'(db_open(mysql,x,localhost/myschema/0/_131406,web,mypassword)) ?
(3) exit:myddas_errors:'$error_checks'(db_open(mysql,x,localhost/myschema/0/_131406,web,mypassword)) ?
(4) call:myddas:c_db_my_connect(localhost,web,mypassword,myschema,0,_131406,_131634) ?
(4) fail:myddas:c_db_my_connect(localhost,web,mypassword,myschema,0,_131406,_131634) ?
(2) fail:myddas:db_open(mysql,x,localhost/myschema/0/_131406,web,mypassword) ?
(1) fail:db_open(mysql,x,localhost/myschema,web,mypassword) ?