У меня есть таблица со столбцами слова и предложения.Идея состоит в том, чтобы заменить слова в предложении ссылкой (включая само слово), если слово найдено в столбце слов.Приведенный ниже запрос прекрасно заменяет, но поскольку ссылка составлена из столбца temp.word, регистр слов в предложении заменяется регистром слов в столбце слов.Есть ли способ сохранить тот же случай в самом предложении?
Create table temp(
id NUMBER,
word VARCHAR2(1000),
sentence VARCHAR2(2000)
);
insert into temp
SELECT 1,'automation testing', 'automtestingation Testing is popular kind of testing' FROM DUAL UNION ALL
SELECT 2,'testing','manual testing' FROM DUAL UNION ALL
SELECT 3,'manual testing','this is an old method of testing' FROM DUAL UNION ALL
SELECT 4,'punctuation','automation testing,manual testing,punctuation,automanual testing-testing' FROM DUAL UNION ALL
SELECT 5,'B-number analysis','B-number analysis table' FROM DUAL UNION ALL
SELECT 6,'B-number analysis table','testing B-number analysis' FROM DUAL UNION ALL
SELECT 7,'Not Matched','testing testing testing' FROM DUAL;
with words(id, word, word_length, search1, replace1, search2, replace2) as (
select id, word, length(word),
'(^|\W)' || REGEXP_REPLACE(word, '([][)(}{|^$\.*+?])', '\\\1') || '($|\W)',
'\1{'|| id ||'}\2',
'{'|| id ||'}',
'http://localhost/' || id || '/<u>' || word || '</u>'
FROM temp
)
, joined_data as (
select w.search1, w.replace1, w.search2, w.replace2,
s.rowid s_rid, s.sentence,
row_number() over(partition by s.rowid order by word_length desc) rn
from words w
join temp s
on instr(UPPER(s.sentence), UPPER(w.word)) > 0
and regexp_like(s.sentence, w.search1)
)
, unpivoted_data as (
select S_RID, SENTENCE, PHASE, SEARCH_STRING, REPLACE_STRING,
row_number() over(partition by s_rid order by phase, rn) rn,
case when row_number() over(partition by s_rid order by phase, rn)
= count(*) over(partition by s_rid)
then 1
else 0
end is_last
from joined_data
unpivot(
(search_string, replace_string)
for phase in ( (search1, replace1) as 1, (search2, replace2) as 2 ))
)
, replaced_data(S_RID, RN, is_last, SENTENCE) as (
select S_RID, RN, is_last,
regexp_replace(SENTENCE, search_string, replace_string,1,0,'i')
from unpivoted_data
where rn = 1
union all
select n.S_RID, n.RN, n.is_last,
case when n.phase = 1
then regexp_replace(o.SENTENCE, n.search_string, n.replace_string,1,0,'i')
else replace(o.SENTENCE, n.search_string, n.replace_string)
end
from unpivoted_data n
join replaced_data o
on o.s_rid = n.s_rid and n.rn = o.rn + 1
)
select s_rid, sentence from replaced_data
where is_last = 1
order by s_rid;
For example, for id = 1, the sentence is automtestingation Testing is popular kind of testing
After replacement it will be automtestingation http://localhost/2/<u>testing</u> is popular kind of http://localhost/2/<u>testing</u>.
The word Testing is replaced with testing(from the temp.word column).
Ожидаемый результат -
automtestingation http://localhost/2/<u>Testing</u> is popular kind of http://localhost/2/<u>testing</u>