sql server - How to use newid() to assign a value to a stored procedure variable? -

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i trying generate new guid , assign value newreportid. but, unsure if replace @newreportid everywhere in procedure newid() generate new guid each line.

what have generate 1 guid , assign newreportid value of guid?

i have tried in variable declaration: @newreportid varchar(50)=newid() gave me lots of errors.

alter procedure [dbo].[amendinsertduplicatefields] (@reportid varchar(50), @newreportid varchar(50))      begin             insert [mvcomar].[dbo].[pridemvccollisionbegin]   ([reportid], [localincidentnum], [version], [mtoreferenceno], [submitted]) select @newreportid, [localincidentnum], [version], [mtoreferenceno], [submitted] [mvcomar].[dbo].[pridemvccollisionbegin] [reportid]=@reportid;  insert [mvcomar].[dbo].[pridemvccollisiondetails] ([classification]      ,     [reporttype]      ,[collisiondate]      ,[collisionday]      ,     [collisiontime]      ,[collisionloc]      ,[impactloc]      ,[thrulaneno]      ,     [weather1]      ,[weather2]      ,[light]      ,[trafficcontrol]      ,     [trafficcontrolcond]      ,[roadchar1]      ,[roadchar2]      ,     [roadsurface1]      ,[roadsurface2]      ,[roadcond1]      ,[roadcond2]      ,     [roadsurfacecond1]      ,[roadsurfacecond2]      ,[roadalignment1]      ,     [roadalignment2]      ,[roadpavementmarking1]      ,[roadpavementmarking2]      ,     [othercollisionloc]      ,[otherimpactloc]      ,[otherweather1]      ,     [otherweather2]      ,[otherlight]      ,[othertraffic]      ,     [otherroadsurface1]      ,[otherroadsurface2]      ,[otherroadsurfacecond1]      ,     [otherroadsurfacecond2]      ,[otherclassification]      ,     [diagramdescription]      ,[r1numlanes]      ,[r1maxspeed]      ,     [r1advisespeed]      ,[r2numlanes]      ,[r2maxspeed]      ,[r2advisespeed]      ,     [numinvolved]      ,[officerid]      ,[checked]      ,[lastmodified]      ,     [lastmodifiedby]      ,[starttime]      ,[endtime]      ,[display]      ,     [reportid]      ,[initialimpacttype]      ,[otherinitialimpacttype]      ,     [selfreported]) select [classification]      ,[reporttype]      ,[collisiondate]      ,     [collisionday]      ,[collisiontime]      ,[collisionloc]      ,[impactloc]      ,     [thrulaneno]      ,[weather1]      ,[weather2]      ,[light]      ,     [trafficcontrol]      ,[trafficcontrolcond]      ,[roadchar1]      ,     [roadchar2]      ,[roadsurface1]      ,[roadsurface2]      ,[roadcond1]      ,     [roadcond2]      ,[roadsurfacecond1]      ,[roadsurfacecond2]      ,     [roadalignment1]      ,[roadalignment2]      ,[roadpavementmarking1]      ,     [roadpavementmarking2]      ,[othercollisionloc]      ,[otherimpactloc]      ,     [otherweather1]      ,[otherweather2]      ,[otherlight]      ,     [othertraffic]      ,[otherroadsurface1]      ,[otherroadsurface2]      ,     [otherroadsurfacecond1]      ,[otherroadsurfacecond2]      ,     [otherclassification]      ,[diagramdescription]      ,[r1numlanes]      ,     [r1maxspeed]      ,[r1advisespeed]      ,[r2numlanes]      ,[r2maxspeed]      ,     [r2advisespeed]      ,[numinvolved]      ,[officerid]      ,[checked]      ,     [lastmodified]      ,[lastmodifiedby]      ,[starttime]             end

use correct data type? uniqueidentifier

declare @newreportid uniqueidentifier  set @newreportid = newid()

what flavour of sql-server using? tried said erroring:

i have tried in variable declaration: @newreportid varchar(50)=newid() gave me lots of errors.

but works me

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