Regex ! " " & @ # " ^. 我将在代码中包含这些内容。@Ana您不需要将它们全部转义。只有正则表达式的特殊字符，它们应该已经在我的代码中列出了。嗨，MT0，我正在一个有45k个单词和句子的表上运行这段代码。它已经运行了15个多小时，而且还在运行。你认
Regex ! " " & @ # " ^. 我将在代码中包含这些内容。@Ana您不需要将它们全部转义。只有正则表达式的特殊字符，它们应该已经在我的代码中列出了。嗨，MT0，我正在一个有45k个单词和句子的表上运行这段代码。它已经运行了15个多小时，而且还在运行。你认,regex,oracle,replace,pattern-matching,regexp-replace,Regex,Oracle,Replace,Pattern Matching,Regexp Replace,! " " & @ # " ^. 我将在代码中包含这些内容。@Ana您不需要将它们全部转义。只有正则表达式的特殊字符，它们应该已经在我的代码中列出了。嗨，MT0，我正在一个有45k个单词和句子的表上运行这段代码。它已经运行了15个多小时，而且还在运行。你认为我们必须修改代码来提高性能吗？或者有没有办法确定在任何给定时间更新了多少行？ Create table temp( id NUMBER, word VARCHAR2(1000), Sentence VARCHA
! " " & @ # " ^. 我将在代码中包含这些内容。@Ana您不需要将它们全部转义。只有正则表达式的特殊字符，它们应该已经在我的代码中列出了。嗨，MT0，我正在一个有45k个单词和句子的表上运行这段代码。它已经运行了15个多小时，而且还在运行。你认为我们必须修改代码来提高性能吗？或者有没有办法确定在任何给定时间更新了多少行？
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 5,'B-number analysis','B-number analysis table' FROM DUAL UNION ALL
SELECT 6,'B-number analysis table','testing B-number analysis' FROM DUAL;
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 || '($|[^a-z])',
'\1' || 'http://localhost/'|| w.id ||'/<u>'||w.word ||'<u>' || '\2',
1,
0,
'i'
),
'(^|[^a-z])' || w.word || '($|[^a-z])',
'\1' || w.word || '\2',
1,
0,
'i'
),
s.rn - 1
FROM sentences s
INNER JOIN ordered_words w
ON ( s.rn - 1 = w.rn )
)
SELECT rid, sentence
FROM sentences
WHERE rn = 1
) src
ON ( dst.ROWID = src.RID )
WHEN MATCHED THEN
UPDATE
SET sentence = src.sentence;
ID WORD SENTENCE
1 automation testing automtestingation http://localhost/2/<u>testing<u>
is popular kind of http://localhost/2/<u>testing<u>
2 testing http://localhost/3/<u>manual
http://localhost/2/<u>testing<u><u>
3 manual testing this is an old method of
http://localhost/2/<u>testing<u>
5 B-number analysis http://localhost/6/<u>http://localhost/5/<u>B-
number analysis<u> table<u>
6 B-number analysis table http://localhost/2/<u>testing<u>
http://localhost/5/<u>B-number analysis<u>