After years of efforts, countries decided where exactly the Prime Meridian and the equator would cross each other.

Spread the loveNULL in SQL is a powerful concept, representing the absence of a value. It’s used when data is unavailable or unknown, but its usage requires careful consideration. The first step is ...

The lack of information within relational databases expressed as NULL values presents a problem in ensuring the quality of data and the information retrieved by SQL queries. This is so because there ...

然后使用flink-sql到sr中，我从来ods使用flink-sql清洗到sr中，或者是直接paimon-dw层中flink-sql到sr，都会出现NULL value in non-nullable column，字段为null值，但是这个null值是操作数据，为什么在paimon或者直接在mysql中是可以写入的呢？ 就算我是定义主键了。

Null pointer exceptions are no fun. You can avoid them and keep your code clean and maintainable by using these techniques to elegantly handle null values in C#.

Learn to change the default behavior and return HTTP 404 when action methods in ASP.NET Core return null values.

Is your SQL drawing a blank? It’s NULL a surprise! The title of this post is a play on words, but very appropriate. We are going to discuss the inconsistent results, as well as performance ...

Motivation This proposal is to improve handling of null values in druid by treating nulls as missing values which don’t actually exist. This will make it more compatible to SQL standard and help wi ...