SQLite 3.27

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create table t1 as
    select 'value1' col1, 'value2' col2, 'value3' col3
create trigger inst1 insert on t1 
begin
    select raise (fail, 'illegal insert on t1');
end;
create trigger delt1 delete on t1 
begin
    select raise (fail, 'illegal delete on t1');
end;
update t1 set col1='new value'
select * from t1


col1
col2
col3


new value
value2
value3


insert into t1 (col1,col2,col3) values ('val4','val5','val6')


col1
col2
col3


new value
value2
value3


illegal insert on t1

delete from t1


col1
col2
col3


new value
value2
value3


illegal delete on t1