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--- doc:defining_computables [2014/11/26 20:55] – admin
+++ doc:defining_computables [2014/11/26 21:00] (current) – [SQL computables] admin
@@ Line 33: / Line 33: @@
 ===== Prolog computables =====
-  * Prolog computables, which evaluate a binary Prolog predicate that computes an OWL relation
+Prolog computables computes an OWL relation by evaluating a binary Prolog predicate.
@@ Line 86: / Line 86: @@
 ===== SQL computables =====
-SQL computables, which use SQL queries for reading external data, and
+SQL computables used SQL queries for reading external data. They are currently deactivated, but the code is still available in the rdfs_computable module. You need to make sure that [[http://swi-prolog.org/pldoc/doc_for?object=section%28%27packages/odbc.html%27%29|ODBC is set up correctly]]. **The following paragraphs have been kept for archival reasons, but SQL computables are currently not functional.**
 ==== SQL properties ====