Stored procedure inside a trigger for logging - sql

Question

I am using an identical trigger for multiple tables for logging DML events and because of that I have lots of redundant code. How can I write a stored procedure and call it inside those triggers to log data?
Here is what my trigger looks like
CREATE OR ALTER TRIGGER [Person].tr_logInsertDeleteOrUpdateemployee
ON [Person].employee
AFTER INSERT, UPDATE, DELETE
AS
BEGIN
SET NOCOUNT ON
DECLARE #tableName varchar(100) = '[Person].employee'
IF EXISTS (SELECT TOP 1 * FROM inserted)
AND EXISTS (SELECT TOP 1 * FROM Deleted)
BEGIN
INSERT INTO dbo.DMLLogs
SELECT updatedRecord = 'updated row', #tableName, ID, SYSTEM_USER, GETDATE()
FROM deleted
END
IF EXISTS (SELECT TOP 1 * FROM inserted)
AND NOT EXISTS (SELECT TOP 1 * FROM Deleted)
BEGIN
INSERT INTO dbo.DMLLogs
SELECT insertedRecord = 'inserted', #tableName, ID, SYSTEM_USER, GETDATE()
FROM inserted
END
IF EXISTS (SELECT TOP 1 * FROM deleted)
AND NOT EXISTS (SELECT TOP 1 * FROM inserted)
BEGIN
INSERT INTO dbo.DMLLogs
SELECT deletedRecord = 'deleted from', #tableName, ID, SYSTEM_USER, GETDATE()
FROM deleted
END
END

Answer 1

Putting aside the question of whether there's a better option than creating triggers, the inserted and deleted virtual tables are not visible in a stored procedure, so there's not really a way to do that. The usual practice here is to automate the creation of the boilerplate triggers so they are all created from a single template. Something like:
create schema admin
go
create or alter proc admin.GenerateAuditingTriggers
as
begin
declare c cursor local for
select name, schema_name(schema_id)
from sys.tables
where schema_id in (schema_id('dbo'))
open c
declare #tableName sysname
declare #schemaName sysname
fetch next from c into #tableName, #schemaName
while ##FETCH_STATUS = 0
begin
declare #sql nvarchar(max) = concat(
'
CREATE OR ALTER TRIGGER ',quotename(#schemaName),'.',quotename('tr_logInsert' + #tableName),'
ON ',quotename(#schemaName),'.',quotename(#tableName),'
AFTER INSERT
AS
BEGIN
SET NOCOUNT ON
DECLARE #tableName varchar(100) = ''',quotename(#schemaName),'.',quotename(#tableName),'''
INSERT INTO dbo.DMLLogs
SELECT updatedRecord = ''inserted row'', #tableName, ID, SYSTEM_USER, GETDATE()
FROM inserted
END
')
print #sql
exec (#sql)
print 'trigger created'
print ''
fetch next from c into #tableName, #schemaName
end
close c
deallocate c
end