Stored procedure parameters cannot be prefixed with "_"

create or replace procedure proc_provider_register(_table_name PRI_PROVIDER_REGISTER.tablename%type, data_sizes PRI_PROVIDER_REGISTER.sizes%type,batchNumber PRI_PROVIDER_REGISTER.batch1%type)
is
begin
insert into PRI_PROVIDER_REGISTER(sizes,TABLENAME,batch1) values (data_sizes,_table_name,batchNumber);
end;
PROCEDURE SCOTT.PROC_PROVIDER_REGISTER 编译错误

错误：PLS-00103: Encountered the symbol “_” when expecting one of the following:

      <an identifier> <a double-quoted delimited-identifier>
      current delete exists prior
   The symbol "_" was ignored.

行：1
文本：create or replace procedure proc_provider_register(_table_name PRI_PROVIDER_REGISTER.tablename%type, data_sizes PRI_PROVIDER_REGISTER.sizes%type,batchNumber PRI_PROVIDER_REGISTER.batch1%type)

错误：PLS-00103: Encountered the symbol “_” when expecting one of the following:

      ( - + case mod new not null <an identifier>
      <a double-quoted delimited-identifier> <a bind variable>
      continue avg count current exists max min prior sql stddev
      sum variance execute forall merge time timestamp interval
      date <a string literal with character set specification>
      <a number> <a single-quoted SQL string> pipe
      <an alternatively-quoted string literal with character set specification>
      <an alternatively

行：4
文本：insert into PRI_PROVIDER_REGISTER(sizes,TABLENAME,batch1) values (data_sizes,_table_name,batchNumber);

The exception is that the parameter name is prefixed with "_", just remove it.