Amazon Redshift 將不再支援在 2026 年 6 月 30 日之後使用 Python UDFs。我們將開始分階段強制執行。如需 Python 生命週期結束和遷移選項的詳細資訊，請參閱 2025 年 6 月 30 日發佈的[部落格文章](https://aws.amazon.com/blogs/big-data/amazon-redshift-python-user-defined-functions-will-reach-end-of-support-after-june-30-2026/)。

本文為英文版的機器翻譯版本，如內容有任何歧義或不一致之處，概以英文版為準。

# SELECT
<a name="r_SELECT_synopsis"></a>

從資料表、檢視及使用者定義的函數中刪除資料列。

**注意**  
單一 SQL 陳述式的大小上限為 16 MB。

## 語法
<a name="r_SELECT_synopsis-synopsis"></a>

```
[ WITH with_subquery [, ...] ]
SELECT
[ TOP number | [ ALL | DISTINCT ]
* | expression [ AS output_name ] [, ...] ]
[ EXCLUDE column_list ]
[ FROM table_reference [, ...] ]
[ WHERE condition ]
[ [ START WITH expression ] CONNECT BY expression ]
[ GROUP BY ALL | expression [, ...] ]
[ HAVING condition ]
[ QUALIFY condition ]
[ { UNION | ALL | INTERSECT | EXCEPT | MINUS } query ]
[ ORDER BY expression [ ASC | DESC ] ]
[ LIMIT { number | ALL } ]
[ OFFSET start ]
```

**Topics**
+ [語法](#r_SELECT_synopsis-synopsis)
+ [WITH 子句](r_WITH_clause.md)
+ [SELECT 清單](r_SELECT_list.md)
+ [EXCLUDE column\_list](r_EXCLUDE_list.md)
+ [FROM 子句](r_FROM_clause30.md)
+ [WHERE 子句](r_WHERE_clause.md)
+ [GROUP BY 子句](r_GROUP_BY_clause.md)
+ [HAVING 子句](r_HAVING_clause.md)
+ [QUALIFY 子句](r_QUALIFY_clause.md)
+ [UNION、INTERSECT 和 EXCEPT](r_UNION.md)
+ [ORDER BY 子句](r_ORDER_BY_clause.md)
+ [CONNECT BY 子句](r_CONNECT_BY_clause.md)
+ [子查詢範例](r_Subquery_examples.md)
+ [相互關聯子查詢](r_correlated_subqueries.md)