请教delphi中如何查询某个范围内的数据

[dongmei757]

access数据库中保存有图片，
另外还有两个字段分别保存了图片的宽和高（文本类型PIC_W,PIC_H）,表名师PIC，
请教如何能查询到宽度是 strtoint(edit1.text) -5 <= 宽度 <= strtoint(edit1.text) +5,并且高度是 strtoint(edit2.text) - 5 <= 高度 <= strtoint(edit2.text) +5的图片？

[ACMAIN_CHM]

select * from access数据库 where PIC_W+0 between strtoint(edit1.text) -5 and strtoint(edit1.text) +5 and PIC_H+0 between strtoint(edit2.text) - 5 and strtoint(edit2.text) +5

[WWWWA]

select * from tt where val(PIC_W) between strtoint(edit1.text) -5 and strtoint(edit1.text) +5 and val(PIC_H) between strtoint(edit2.text) - 5 and strtoint(edit2.text) +5