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fix: remove postgresql-isnull feature flag
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owenlongbo committed Feb 21, 2024
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Expand Up @@ -6,7 +6,6 @@ authors: [ owen ]
image: https://cdn.illacloud.com/illa-website/blog/postgresql-isnull/cover.webp
tags: [ postgresql, isnull, isnotnull ]
date: 2024-02-04T11:00
is_featured: true
---

This article explains how to use the `IS NULL` operator in PostgreSQL to check if a value is `NULL`.
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Expand Up @@ -6,7 +6,6 @@ authors: [ owen ]
image: https://cdn.illacloud.com/illa-website/blog/postgresql-isnull/cover.webp
tags: [ postgresql, isnull, isnotnull ]
date: 2024-02-04T11:00
is_featured: true
---

Dieser Artikel erläutert die Verwendung des `IS NULL`-Operators in PostgreSQL, um zu überprüfen, ob ein Wert `NULL` ist.
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Expand Up @@ -6,7 +6,6 @@ authors: [ owen ]
image: https://cdn.illacloud.com/illa-website/blog/postgresql-isnull/cover.webp
tags: [ postgresql, isnull, isnotnull ]
date: 2024-02-04T11:00
is_featured: true
---

この記事では、PostgreSQLの `IS NULL` 演算子を使用して値が `NULL` かどうかを確認する方法について説明します。PostgreSQLの `IS NULL` は、値が `NULL` かどうかを確認するブール演算子です。`NULL` 値は何も示さない特殊な値であり、空の文字列でもなく、falseでもありません。
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Expand Up @@ -6,7 +6,6 @@ authors: [ owen ]
image: https://cdn.illacloud.com/illa-website/blog/postgresql-isnull/cover.webp
tags: [ postgresql, isnull, isnotnull ]
date: 2024-02-04T11:00
is_featured: true
---

本文介绍了在 PostgreSQL 中如何使用 `IS NULL` 运算符检查一个值是不是 `NULL`。PostgreSQL `IS NULL` 是一个布尔运算符,它检查一个值是不是`NULL``NULL`值是一个特殊的值,它表示什么都没有,它即不是空字符串也不是false。
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