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HomeDatabaseMysql TutorialAccess字符串处理函数整理

在access数据库中用的到的一些字符串处理函数代码,需要的朋友可以参考下。

1.Asc
说明:返回字母的Acsii值
举例:select Asc("A")返回65

2.Chr
说明:将ascii值转换到字符
举例:select chr(65)返回"A"

3.Format
说明:格式化字符串
举例:Select Format(now(),"yyyy-mm-dd")返回类似于"2008-04-03"
Select Format(3/9,"0.00")返回0.33

4.InStr
说明:查询子串在字符串中的第一个出现的位置,没有返回0
举例:select Instr("abc","a") 返回1

5.LCase
说明:返回字符串的小写形式
举例:select LCase("ABC") 返回"abc"

6.Left
说明:左截取字符串
举例:select Left("ABC",1) 返回"A"

7.Len
说明:返回字符串长度
举例:select Len("ABC你好")返回5

8.LTrim
说明:左截取空格
举例:select LTrim(" 111") 返回"111"

9.Mid
说明:取得子字符串
举例:select mid("abcd",1,2) 返回"ab"

10.Right
说明:右截取字符串
举例:select Right("ABC",1) 返回"C"

11.RTrim
说明:右截取空格
举例:select Right("ABC ") 返回"ABC"

12.Space
说明:产生空格
举例:select Space(5) 返回5个空格

13.StrComp
说明:比较两个字符串是否内容一致(不区分大小写)
举例:select StrComp("abc","ABC")返回0
select StrComp("abc","123")返回-1

14.Trim
说明:截取字符串两头的空格
举例:select Trim(" ABC ") 返回"ABC"

15.UCase
说明:将字符串转大写
举例:select UCase("abc") 返回"ABC"
Statement
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