sort of中文翻译
sql根据字段中的逗号截取偏移排序方法
English:
To achieve this in SQL, you can use the combination of the SUBSTRING_INDEX function and the ORDER BY clause. The SUBSTRING_INDEX function allows you to extract a substring from a string before a specified number of occurrences of a delimiter, in this case, a comma. You can specify the offset and use it to extract the desired portion of the string. Then, you can use the ORDER BY clause to sort the results based on the extracted substring. For example, if you have a column with comma-separated values and you want to extract and sort based on the second value after the first comma, you can use a query like:
SELECT column_name
FROM table_name
ORDER BY SUBSTRING_INDEX(SUBSTRING_INDEX(column_name, ',', 2), ',', -1);
This query uses the SUBSTRING_INDEX function twice to extract the desired portion and then sorts the results based on that extracted substring.
中文翻译:
在SQL中实现这一点，可以使用SUBSTRING_INDEX函数和ORDER BY子句的组合。SUBSTRING_INDEX函数允许您从字符串中提取子字符串，直到指定的分隔符出现的次数，在本例中是逗号。您可以指定偏移量，并使用它来提取字符串的所需部分。然后，您可以使用ORDER BY子句根据提取的子字符串对结果进行排序。例如，如果您有一个包含逗号分隔值的列，并且想要提取并根据第一个逗号后的第二个值进行排序，可以使用如下查询：
SELECT column_name
FROM table_name
ORDER BY SUBSTRING_INDEX(SUBSTRING_INDEX(column_name, ',', 2), ',', -1);
该查询使用SUBSTRING_INDEX函数两次来提取所需部分，然后根据提取的子字符串对结果进行排序。

版权声明：本站内容均来自互联网，仅供演示用，请勿用于商业和其他非法用途。如果侵犯了您的权益请与我们联系QQ:729038198，我们将在24小时内删除。