oracle REGEXP_LIKE()正则表达式问题
REGEXP_LIKE(TEMP_OBJECTS(I).COND_COL_NAME,'[=(=]')这个'[=(=]'表示什么意思是匹配‘=（=’的意思吗...
REGEXP_LIKE(TEMP_OBJECTS(I).COND_COL_NAME, '[=(=]') 这个'[=(=]'表示什么意思
是匹配 ‘=（=’ 的意思吗 展开
是匹配 ‘=（=’ 的意思吗 展开
展开全部
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
本回答由提问者推荐
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
推荐律师服务：
若未解决您的问题，请您详细描述您的问题，通过百度律临进行免费专业咨询
