sql server 匯入c#dll
阿新 • • 發佈:2021-07-20
1.編寫c# 類庫
[SqlFunction(IsDeterministic = true, DataAccess = DataAccessKind.None)] public static SqlString GetKeyWords(SqlString input, SqlString pattern) { GroupCollection groups = Regex.Match(input.ToString(), pattern.ToString()).Groups; return (SqlString)groups[1].Value; }
2.匯入dll
exec sp_configure 'clr enabled', 1; reconfigure; use JRE; create assembly RegExp from'C:\Users\Administrator\Documents\visual studio 2015\Projects\Jsonparser\Jsonparser\bin\Debug\Jsonparser.dll'
3.編寫對應的函式
CREATE FUNCTION dbo.GetKeyWords ( @input AS NVARCHAR(MAX) , @patternAS NVARCHAR(MAX) ) RETURNS NVARCHAR(MAX) WITH RETURNS NULL ON NULL INPUT EXTERNAL NAME [RegExp].[Jsonparser.RegExp].[GetKeyWords];
4.呼叫函式
SELECT dbo.GetKeyWords('http://webapi.jrechina.com/MobileRequest.ashx?action=Jre&lan=1&Method=T_Houses.JreWebEnSearch&Cont={"ID":"137331"%2C"Category":"Near"}&EType=Soa&page=1&rows=8','"ID":"(.*)"%2C|\}')
5.常用正則
"ID":"(\d{1,10})" "KeyWord":"(.*)"