小编Bas*_*sti的帖子

我不明白,为什么我的列reg1和reg2从我的字符串中删除"bbb",只有reg3按预期工作.

WITH t AS (SELECT 'aaa <b>bbb</b> ccc' AS teststring FROM dual)

SELECT
  teststring,
  regexp_replace(teststring, '<.+>') AS reg1,
  regexp_replace(teststring, '<.*>') AS reg2,
  regexp_replace(teststring, '<.*?>') AS reg3
FROM t


TESTSTRING             REG1        REG2          REG3
aaa <b>bbb</b> ccc     aaa ccc     aaa ccc       aaa bbb ccc

非常感谢!