REGEXP_LIKE(TEMP_OBJECTS(I).COND_COL_NAME, '[=(=]') 这个'[=(=]'表示什么意思
是匹配 ‘=（=’ 的意思吗
oracle REGEXP_LIKE()正则表达式问题
答案:1 悬赏:0
解决时间 2021-02-21 11:13
- 提问者网友：沉默的哀伤
- 2021-02-21 08:13
最佳答案
- 二级知识专家网友：不羁的心
- 2021-02-21 09:23
这是从oracle官方文档上截下来的
Equivalence Class '[= =]' in Regular Expressions
Oracle Database also supports equivalence classes through the [= =] syntax as recommended by the POSIX standard. A base letter and all of the accented versions of the base constitute an equivalence class. For example, the equivalence class [=a=] matches ä as well as â. The current implementation does not support matching of Unicode composed and decomposed forms for performance reasons. For example, ä (a umlaut) does not match 'a followed by umlaut'.
只翻译关键部分： [=a=] 会匹配 ä 和â等类似的字符
Equivalence Class '[= =]' in Regular Expressions
Oracle Database also supports equivalence classes through the [= =] syntax as recommended by the POSIX standard. A base letter and all of the accented versions of the base constitute an equivalence class. For example, the equivalence class [=a=] matches ä as well as â. The current implementation does not support matching of Unicode composed and decomposed forms for performance reasons. For example, ä (a umlaut) does not match 'a followed by umlaut'.
只翻译关键部分： [=a=] 会匹配 ä 和â等类似的字符
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