Question

是否可以仅使用SQL计算每个单词的长度？例如，对于以下句子：

I have a length of x.

1  4   1  6     2  1

Answer 1

可以尝试自定义方法来创建：

以下是可以提供帮助的示例代码：

Declare @products varchar(200) = 'I have a length of x.'
Declare @individual varchar(20) = null
Declare @lengthOfProducts varchar(20) = null

WHILE LEN(@products) > 0
BEGIN
    IF PATINDEX('% %', @products) > 0
    BEGIN
        SET @individual = SUBSTRING(@products,
                                    0,
                                    PATINDEX('% %', @products))
        SELECT @individual
        SET @lengthOfProducts = @lengthOfProducts + ' ' + LEN(@individual)

        SET @products = SUBSTRING(@products,
                                  LEN(@individual + ' ') + 1,
                                  LEN(@products))
    END
    ELSE
    BEGIN
        SET @individual = @products
        SET @products = NULL
        SELECT @lengthOfProducts
    END
END

Answer 2

有LEN()功能。你只需要在SQL中使用它

SELECT LEN(column_name) FROM table_name;

这在Oracle中

SELECT LENGTH(column_name) FROM table_name;

致谢：SQL LEN() Function

Answer 3

在sql server中，使用LEN(column_name)。对于oracle使用LENGTH(column_name) 例如SELECT CustomerName,LEN(Address) as LengthOfAddress FROM Customers;

用SQL计算单词长度

3 个答案: