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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;
4 rows affected
MERGE INTO temp dst
USING (
WITH ordered_words ( rn, id, word ) AS (
SELECT ROW_NUMBER() OVER ( ORDER BY LENGTH( word ) ASC, word DESC ),
id,
word
FROM temp
),
sentences ( rid, sentence, rn ) AS (
SELECT ROWID,
sentence,
COUNT(*) OVER () + 1
FROM temp
UNION ALL
SELECT s.rid,
REGEXP_REPLACE(
REGEXP_REPLACE(
s.sentence,
'(^|[^a-z])' || w.word || '($|[^a-z])',
'\1' || w.id || '\2',
1,
0,
'i'
),
'(^|[^a-z])' || w.word || '($|[^a-z])',
'\1' || w.id || '\2',
1,
0,
'i'
),
s.rn - 1
FROM sentences s
INNER JOIN ordered_words w
ON ( s.rn - 1 = w.rn )
)
SELECT rid, sentence
4 rows affected
SELECT * FROM temp
| ID | WORD | SENTENCE |
|---|---|---|
| 1 | automation testing | automtestingation 2 is popular kind of 2 |
| 2 | testing | 3 |
| 3 | manual testing | this is an old method of 2 |
| 4 | punctuation | 1,3,4,automanual 2-2 |