[Oracle]如果表存在则删除重新创建

1.创建procedure

create or replace procedure proc_dropifexists(p_table in varchar2)
is
v_count number(10);
begin
  select count(*)
  into v_count
  from user_tables
  where table_name = upper(p_table);
  if v_count > 0 
  then
     execute immediate 'drop table '||p_table||' purge';
  end if;
end proc_dropifexists;

2.使用时

--delete test_table
call proc_dropifexists('test_table');
--create test_table
CREATE TABLE test_table(
  id number(12)  primary key,
  testname varchar(100) NOT NULL 
);