Question

我正在尝试检查oracle中包含大写和小写字母的字段，所以我有这个代码

Select Column
From TABLE
WHERE Column NOT LIKE '%ABC%' AND Column NOT LIKE '%abc%'

有一种更有效的方法可以用来检查一个LIKE语句中的大写和小写字母吗？

Answer 1

如何大写它：

where  upper(column) not like '%ABC%'

Answer 2

怎么样？

WITH test
  AS (SELECT 'aaa' TEXT FROM DUAL
       UNION ALL
      SELECT 'AaA' FROM DUAL
      UNION ALL
      SELECT 'aAA' FROM dual
      UNION ALL
      SELECT 'AAA' FROM DUAL)
SELECT * 
  FROM test
 WHERE text != DECODE(SUBSTR(LOWER(text),1,1),SUBSTR(text,1,1), LOWER(text), UPPER(text));

使用LIKE比较ORACLE中的Capital和小写字母

2 个答案: