Solution Alternative for https://connor-mcdonald.com/2024/05/20/a-sql-conundrum/

solution_alternative_1.sql

-- MLE inline call spec in 23.3 (does not work in 24.4) anymore
/*
create or replace function find_terms (
   "in_terms" in varchar2, 
   "in_text"  in varchar2
) return json is mle language javascript q'[
    var found_terms = [];
    var terms_array = in_terms.split(',');
    for (var i = 0; i < terms_array.length; i++) {
        var term = terms_array[i].trim().toLowerCase();
        if (in_text.toLowerCase().includes(term)) {
           found_terms.push(term);
        }
    }
    return {"terms": found_terms, "hits": found_terms.length};
]';
/
*/

-- MLE module and call spec (wrapper) in 23.4 as workaround (works also in 23.3)
create or replace mle module find_terms_mod language javascript as
export function findTerms(terms, text) {
    var found_terms = [];
    var terms_array = terms.split(',');
    for (var i = 0; i < terms_array.length; i++) {
        var term = terms_array[i].trim().toLowerCase();
        if (text.toLowerCase().includes(term)) {
           found_terms.push(term);
        }
    }
    return {"terms": found_terms, "hits": found_terms.length};
}
/
create or replace function find_terms(in_terms in varchar2, in_text in varchar2)
   return json is
      mle module find_terms_mod
      signature 'findTerms';
/

-- format output for SQL*Plus or SQLcl
set linesize 200
set pagesize 100
column hits format 999
column terms format a44
column txt format a100

-- bug in 23.3, 23.4: throws ORA-00904: "HITS": invalid identifier
/*
with
   base as (
      select id, 
             find_terms('create,database,privilege,select,drop,view,table', txt) as found_terms,
             txt
        from t
   )
select id, 
       j.found_terms.terms, 
       to_number(j.found_terms.hits) as hits,
       txt
  from base j
 where j.found_terms.hits > 3
 order by hits desc;
*/

-- Workaround for bug in 23.3 and 23.4: call json_value once (does not matter for what)
with
   base as (
      select id, 
             find_terms('create,database,privilege,select,drop,view,table', txt) as found_terms,
             txt
        from t
   )
select id, 
       j.found_terms.terms, 
       to_number(json_value(j.found_terms, '$.hits')) as hits,
       txt
  from base j
 where j.found_terms.hits > 3
 order by hits desc;