select count(*)
From user_objects where object_n
ame=up
PEr(p_table_name);&nbs
p; select count(*) f
rom user_tables where table_name=upper(p_table_name);
create or replace
PRocedure p_drop_table_if_exist_v1(
p_table_name in v
Archar2
) is
v_count number(10);
be
gin select count(*)
into v_count
from user_objects
where object_name=upper(p_table_name);
if v_count > 0 then
execute immediate 'drop table ' || p_table_name || '
purge';
end if;
exception
when no_data_found then
begin
null;
end;
end;
/
create or replace procedure p_drop_table_if_exist_v2(
p_table_name in
VARchar2
) is
v_table_name varchar2(20);
begin
select table_name
into v_table_name
from user_tables
where table_name=upper(p_table_name);
if length(v_table_name)>0 then
execute immediate 'drop table ' || p_table_name || ' cas
CADe constr
aints';
end if;
exception
when no_data_found then
begin
null;
end;
end;
/