CREATE FUNCTION dbo.clr_UserLogin
(
    @name AS  NVARCHAR(100),
    @password AS NVARCHAR(100)
)
RETURNS INT 
AS
EXTERNAL NAME asmXXX.[xxx.CLRFunctions].UserLogin;
GO

namespace AQMN.Bussiness
{
    public class UserFunctions
    {
        public static string UserLogin(string username, string password)
        {
            var random = new Random();

            var isSuccess = random.Next() % 2 == 0;

            return isSuccess ? "登錄成功" : "登錄失敗";
        }
    }
}

EXEC sp_configure 'clr enabled', 1;
RECONFIGURE;
GO

ALTER DATABASE MyTestDB SET TRUSTWORTHY ON;
GO

CREATE ASSEMBLY clr_AQMN_Bussiness
FROM 'D:\net6\SQLCrawl\AQMN.Bussiness\bin\Debug\AQMN.Bussiness.dll'
WITH PERMISSION_SET = UNSAFE;
GO

CREATE FUNCTION dbo.clr_UserLogin
(
    @username AS NVARCHAR(100),
 @password AS NVARCHAR(100)
)
RETURNS NVARCHAR(100)
AS
EXTERNAL NAME clr_AQMN_Bussiness.[AQMN.Bussiness.UserFunctions].UserLogin;
GO

SELECT * FROM sys.assemblies
SELECT * FROM sys.assembly_files;
SELECT * FROM sys.assembly_modules;

SELECT dbo.clr_UserLogin(N'jack',N'123456') AS 'State'
GO 10

0:092> lm
start             end                 module name

...
00007ff8`d3960000 00007ff8`d3aaf000   clrjit     (deferred)    
00007ff8`de040000 00007ff8`deb02000   clr        (deferred)     
...

0:092> !eeversion
4.8.4300.0 free
Server mode with 12 gc heaps
SOS Version: 4.8.4300.0 retail build

0:090> !name2ee AQMN.Bussiness!AQMN.Bussiness.UserFunctions.UserLogin
Module:      00007ff87ee37988
Assembly:    AQMN.Bussiness, Versinotallow=1.0.0.0, Culture=neutral, PublicKeyToken=null
Token:       0000000006000001
MethodDesc:  00007ff87ee38020
Name:        AQMN.Bussiness.UserFunctions.UserLogin(System.String, System.String)
JITTED Code Address: 00007ff87ec560d0

0:090> bp 00007ff87ec560d0
0:090> g

0:090> k
 # Child-SP          RetAddr               Call Site
00 000000df`1557ae48 00007ff8`7ee500b6     0x00007ff8`7ec560d0
01 000000df`1557ae50 00007ff8`7ec55ef1     0x00007ff8`7ee500b6
02 000000df`1557aeb0 00007ff8`de04222e     0x00007ff8`7ec55ef1
03 000000df`1557af00 00007ff8`a2b79ff3     clr!UMThunkStub+0x6e
04 000000df`1557af90 00007ff8`a2b741bd     sqllang!CallProtectorImpl::CallWithSEH<AppDomainCallTraits,void,FunctionCallBinder_3<void,void (__cdecl*)(void (__cdecl*)(void * __ptr64),void * __ptr64,enum ESqlReturnCode * __ptr64),void (__cdecl*)(void * __ptr64),void * __ptr64,enum ESqlReturnCode * __ptr64> const >+0x23
05 000000df`1557afc0 00007ff8`a2b6bfc4     sqllang!CallProtectorImpl::CallExternalFull<AppDomainUserCallTraits,void,FunctionCallBinder_3<void,void (__cdecl*)(CXVariant * __ptr64,CXVariant * __ptr64,CClrLobContext * __ptr64),CXVariant * __ptr64,CXVariant * __ptr64,CClrLobContext * __ptr64> const >+0x2dd
06 000000df`1557b130 00007ff8`a2bda602     sqllang!CAppDomain::InvokeClrFn+0xd4
07 000000df`1557b1d0 00007ff8`aef51ee7     sqllang!UDFInvokeExternalImpl+0xb72
08 000000df`1557b7e0 00007ff8`9de52e24     sqlTsEs!CEsExec::GeneralEval4+0xe7
09 000000df`1557b8b0 00007ff8`9de52d64     sqlmin!CQScanProjectNew::EvalExprs+0x18f
0a 000000df`1557b920 00007ff8`9ddd8759     sqlmin!CQScanProjectNew::GetRow+0x98
0b 000000df`1557b970 00007ff8`9ddc73de     sqlmin!CQScanLightProfileNew::GetRow+0x19
0c 000000df`1557b9a0 00007ff8`a25e51d7     sqlmin!CQueryScan::GetRow+0x80
0d 000000df`1557b9d0 00007ff8`a32a78b2     sqllang!CXStmtQuery::ErsqExecuteQuery+0x3d8
0e 000000df`1557bb40 00007ff8`a2bc2451     sqllang!CXStmtSelect::XretDoExecute+0x342
0f 000000df`1557bc10 00007ff8`a2b733d3     sqllang!UM_LoopbackForStatementExecution+0x191
10 000000df`1557bd00 00007ff8`de48e940     sqllang!AppDomainCallback<FunctionCallBinder_5<void,void (__cdecl*)(CXStmtQuery * __ptr64,CCompExecCtxtStmt const * __ptr64,CMsqlExecContext * __ptr64,unsigned long * __ptr64,enum ESqlReturnCode * __ptr64),CXStmtQuery * __ptr64,CCompExecCtxtStmt const * __ptr64,CMsqlExecContext * __ptr64,unsigned long * __ptr64,enum ESqlReturnCode * __ptr64> >+0x23
11 000000df`1557bd40 00007ff8`de48e193     clr!ExecuteInAppDomainHelper+0x40
12 000000df`1557bd80 00007ff8`a2b79f39     clr!CorHost2::ExecuteInAppDomain+0x3a0
13 000000df`1557c0a0 00007ff8`a2b73a86     sqllang!CallProtectorImpl::CallWithSEH<AppDomainCallTraits,long,MethodCallBinder_3<long,ICLRRuntimeHost,long (__cdecl ICLRRuntimeHost::*)(unsigned long,long (__cdecl*)(void * __ptr64),void * __ptr64) __ptr64,unsigned long,long (__cdecl*)(void * __ptr64),void * __ptr64> >+0x29
14 000000df`1557c0d0 00007ff8`a2b6c2d0     sqllang!CallProtectorImpl::CallExternalFull<AppDomainCallTraits,long,MethodCallBinder_3<long,ICLRRuntimeHost,long (__cdecl ICLRRuntimeHost::*)(unsigned long,long (__cdecl*)(void * __ptr64),void * __ptr64) __ptr64,unsigned long,long (__cdecl*)(void * __ptr64),void * __ptr64> >+0x186
15 000000df`1557c170 00007ff8`a32a72f4     sqllang!CAppDomain::LoopbackForStatementExecution+0x180
16 000000df`1557c230 00007ff8`a32a79ad     sqllang!CXStmtQuery::XretCLRExecute+0x104
17 000000df`1557c2a0 00007ff8`a25e4a65     sqllang!CXStmtSelect::XretExecute+0x4a
18 000000df`1557c370 00007ff8`a25e44a8     sqllang!CMsqlExecContext::ExecuteStmts<1,1>+0x8f2
19 000000df`1557cf10 00007ff8`a25e3a2c     sqllang!CMsqlExecContext::FExecute+0x936
1a 000000df`1557def0 00007ff8`a25ee67b     sqllang!CSQLSource::Execute+0xc5c
1b 000000df`1557e3d0 00007ff8`a25ed815     sqllang!process_request+0xca6
1c 000000df`1557ead0 00007ff8`a25ed5ef     sqllang!process_commands_internal+0x4b7
1d 000000df`1557ec00 00007ff8`b1e46523     sqllang!process_messages+0x1d6
1e 000000df`1557ede0 00007ff8`b1e46e6d     sqldk!SOS_Task::Param::Execute+0x232
1f 000000df`1557f3e0 00007ff8`b1e46c75     sqldk!SOS_Scheduler::RunTask+0xa5
20 000000df`1557f450 00007ff8`b1e6b160     sqldk!SOS_Scheduler::ProcessTasks+0x39d
21 000000df`1557f570 00007ff8`b1e6aa5b     sqldk!SchedulerManager::WorkerEntryPoint+0x2a1
22 000000df`1557f640 00007ff8`b1e6afa4     sqldk!SystemThreadDispatcher::ProcessWorker+0x3ed
23 000000df`1557f940 00007ff8`f6d86fd4     sqldk!SchedulerManager::ThreadEntryPoint+0x3b5
24 000000df`1557fa30 00007ff8`f865cec1     KERNEL32!BaseThreadInitThunk+0x14
25 000000df`1557fa60 00000000`00000000     ntdll!RtlUserThreadStart+0x21

0:090> !clrstack
OS Thread Id: 0x6df4 (90)
        Child SP               IP Call Site
000000df1557ae48 00007ff87ec560d0 AQMN.Bussiness.UserFunctions.UserLogin(System.String, System.String)
000000df1557ae50 00007ff87ee500b6 DynamicClass.SQLCLR_Eval(IntPtr, IntPtr, IntPtr)
000000df1557aeb0 00007ff87ec55ef1 DomainBoundILStubClass.IL_STUB_ReversePInvoke(Int64, Int64, Int64)
000000df1557bf18 00007ff8de04222e [ContextTransitionFrame: 000000df1557bf18]