---
title: "RESET 语句"
weight: 15
type: docs
aliases:
  - /zh/docs/sql/reference/reset/
  - /zh/dev/table/sql/reset.html
---
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<a name="reset-statements"></a>

# RESET 语句

`RESET` 语句用于将配置重置为默认值。

<a name="run-a-reset-statement"></a>

## 执行 RESET 语句

{{< tabs "reset statement" >}}
{{< tab "SQL CLI" >}}

`RESET` 语句可以在 [SQL CLI]({{< ref "docs/sql/interfaces/sql-client" >}}) 中执行。

以下示例展示了如何在 SQL CLI 中执行一条 `RESET` 语句。

{{< /tab >}}
{{< /tabs >}}

{{< tabs "reset" >}}
{{< tab "SQL CLI" >}}
```sql
Flink SQL> RESET 'table.planner';
[INFO] Session property has been reset.

Flink SQL> RESET;
[INFO] All session properties have been set to their default values.
```
{{< /tab >}}
{{< /tabs >}}

<a name="syntax"></a>

## Syntax

```sql
RESET ('key')?
```

如果未指定 key，则将所有属性重置为默认值。否则，将指定的 key 重置为默认值。

{{< top >}}
