Как получить параметры URL в SQL

Используем следующую функцию: 

alter FUNCTION dbo.str_DecomposeUrl 
(
    @input_string NVARCHAR(4000) 
)
RETURNS TABLE
AS
RETURN
(

    WITH CTE AS 
    (
        SELECT 
             SUBSTRING(@input_string, 1, NULLIF(CHARINDEX('?', @input_string) - 1, -1)) AS query_path 
            ,RIGHT(@input_string, LEN(@input_string) - NULLIF(CHARINDEX(N'#', @input_string), 0)  ) AS query_hash 
            ,SUBSTRING
            (
                 @input_string
                ,1
                ,COALESCE(NULLIF(CHARINDEX(N'#', @input_string), 0) - 1, LEN(@input_string) )
            ) AS PathWithoutHash 
    )
    ,CTE2 AS 
    (
        SELECT 
             CTE.query_path 
            ,CTE.query_hash 
            ,SUBSTRING
            (    PathWithoutHash
                ,CHARINDEX(N'?', PathWithoutHash) + 1 
                ,100000
            ) AS KeyValueString  
        FROM CTE 
    )
    ,Split(id, stpos, endpos, data, query_path, query_hash) 
    AS
    (
        SELECT 
             0 AS id 
            ,0 AS stpos 
            ,CHARINDEX(N'&', CTE2.KeyValueString) AS endpos 
            ,SUBSTRING(CTE2.KeyValueString, 0, COALESCE(NULLIF(CHARINDEX(N'&', CTE2.KeyValueString), 0), LEN(CTE2.KeyValueString)+1) ) AS data 
            ,CTE2.query_path 
            ,CTE2.query_hash 
        FROM CTE2 

        UNION ALL

        SELECT 
             Split.id + 1 AS id 
            ,Split.endpos + 1 AS stpos 
            ,CHARINDEX(N'&', CTE2.KeyValueString, Split.endpos+1) AS endpos 
            ,SUBSTRING(CTE2.KeyValueString, Split.endpos + 1, COALESCE(NULLIF(CHARINDEX(N'&', CTE2.KeyValueString, Split.endpos+1), 0), LEN(CTE2.KeyValueString)+1) - Split.endpos - 1) AS data  
            ,CTE2.query_path 
            ,CTE2.query_hash 
        FROM Split 
        CROSS JOIN CTE2 
        WHERE endpos > 0
    )
    SELECT 
         id
         -- ,stpos
         -- ,endpos
         -- ,SUBSTRING(@String, stpos, COALESCE(NULLIF(endpos, 0), LEN(@String)+1) - stpos) AS data_simple 
        ,data
        ,query_path 
        ,query_hash 
        ,SUBSTRING(data, 1, NULLIF(CHARINDEX('=', data), 0) -1) AS [key]
        ,SUBSTRING(data, NULLIF(CHARINDEX('=', data), 0) + 1, LEN(data)) AS value 
    FROM Split 
)

Использование: 

select * 
from dbo.str_DecomposeUrl('https://falcon.web-automation.ru/project-concept?par1=444&name=132')

Результат:

Источник: https://stackoverflow.com/questions/36208967/how-to-extract-url-querystring-parameters-in-sql-server-without-writing-a-functi