Such character references can be used in any character string passed to DB2 to replace code points that cannot be represented in the database code page.
可以在任何传递给DB2的字符串中使用那样的字符引用来替代不能在数据库代码页中表示的代码点。
When specified during a search and replace operation, then sections of the character container sequence being searched that do match the regular expression, are not copied to the output string.
指定进行搜索和替换的操作中，字符容器序列中不被匹配的部分，不拷贝到输出字符。
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