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delete enterpriseonly #1046

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4 changes: 0 additions & 4 deletions docs-2.0/3.ngql-guide/10.tag-statements/6.delete-tag.md
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`DELETE TAG`语句可以删除指定点上的指定Tag。

!!! enterpriseonly

仅企业版支持本功能。

点可以有一个或多个Tag。

- 如果某个点只有一个Tag,删除这个点上的Tag后,用户就**无法访问**这个点,下次Compaction操作时会删除该点,但点上的边仍然存在。
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`concat()`和`concat_ws()`函数返回一个或多个字符串连接产生的字符串。

!!! enterpriseonly

仅企业版支持本功能。

## concat()函数

`concat()`函数至少需要两个或以上字符串参数,并将所有参数连接成一个字符串。