为含有分区及子分区的模型添加分区。

create or replace procedure p_test_gy(v_datacycle_id varchar2, --添加分区的上限值
                                      v_entity_owner varchar2,
                                      v_entity_name  varchar2,
                                      v_retcode      out varchar2,
                                      v_retinfo      out varchar2) is

  v_cnt1           number; --实体检测
  v_cnt2           number; --分区是否存在检测
  v_cnt3           number; --模板子分区是否存在检测
  v_part_type      varchar2(30); --分区类型
  v_subpart_type   varchar2(30); --子分区类型
  v_part_value_max varchar2(30); --分区最大值
  v_part_style     varchar2(30); --分区命名格式
  v_part_value     varchar2(30); --分区值变量
  v_sql            varchar2(4000); --动态执行SQL
  v_sub_template   varchar2(4000); --调整模板子分区 
  v_high_value  long; --子分区值变量
  v_subpart_value     varchar2(30); --子分区值变量

  /*v_pkg
  v_procname */
begin
  /*--插入日志部分
  p_insert_log(v_acct_month, v_pkg, v_procname, v_prov_id, sysdate, '');*/
  --检测输入参数是否有误
  select count(0)
    into v_cnt1
    from sys.dba_objects
   where owner = v_entity_owner
     and object_name = v_entity_name
     and object_type = 'TABLE';
  if v_cnt1 = 0 then
    v_retcode := 'FAIL';
    v_retinfo := '目标表信息输入有误';
  else
    --检测目标表有无分区
    select count(0)
      into v_cnt2
      from sys.dba_part_tables t
     where t.owner = v_entity_owner
       and t.table_name = v_entity_name;
    if v_cnt2 = 0 then
      v_retcode := 'SUCCESS';
      v_retinfo := '目标表无分区';
    else
      --检测分区是否已存在
      select regexp_replace(max(t.partition_name), '[^0-9]', ''),
             regexp_replace(max(t.partition_name), '[0-9]', '')
        into v_part_value_max, v_part_style
        from sys.dba_tab_partitions t
       where t.table_owner = v_entity_owner
         and t.table_name = v_entity_name;
      select partitioning_type, subpartitioning_type
        into v_part_type, v_subpart_type
        from sys.dba_part_tables t
       where t.owner = v_entity_owner
         and t.table_name = v_entity_name;
         --分区已存在&分区是LIST/HASH分区
      if v_part_value_max >= v_datacycle_id OR v_part_type <> 'RANGE' then
        v_retcode := 'SUCCESS';
        v_retinfo := '分区已存在';
      else
        select count(0)
          into v_cnt3
          from sys.dba_subpartition_templates
         where table_name = v_entity_name
           and user_name = v_entity_owner;
           --无子分区&有子分区且为模板子分区
        if v_part_type = 'RANGE' AND
           ((v_subpart_type = 'LIST' AND v_cnt3 <> 0) OR
           nvl(v_subpart_type, '**') = 'NONE') then
          v_part_value := to_char(add_months(to_date(v_part_value_max,
                                                     'yyyymm'),
                                             1),
                                  'yyyymm');
          while v_part_value <= v_datacycle_id loop
            v_sql := 'alter table ' || v_entity_owner || '.' ||
                     v_entity_name || ' add partition ' || v_part_style ||
                     v_part_value || ' 
  values less than (''' ||
                     to_char(add_months(to_date(v_part_value, 'yyyymm'), 1),
                             'yyyymm') || ''') tablespace ';
             --日志检索                
            /*dbms_output.put_line(v_sql);*/
            --需要分配分区(或者建表设置默认表空间)
            execute immediate v_sql;
            v_part_value := to_char(add_months(to_date(v_part_value,
                                                       'yyyymm'),
                                               1),
                                    'yyyymm');
          end loop;
          v_retcode := 'SUCCESS';
          v_retinfo := '成功';
        else
          /*--顺序不太好看
             select 
                 rtrim(wmsys.wm_concat(' subpartition ' || substr(subpartition_name,length(partition_name)+2) || ' values ( ''' ||
                regexp_replace(substr(subpartition_name, length(partition_name)+2),'[^0-9]','') || ''' ) '),',') into v_sub_template
           from sys.dba_tab_subpartitions
          where table_owner = v_entity_owner
            and partition_name = v_part_value_max
            and table_name = v_entity_name;*/
            --有子分区且非模板子分区
          v_sub_template := 'alter table ' || v_entity_owner || '.' ||
                            v_entity_name || '
set subpartition template(';
--''' ||regexp_replace(substr(subpartition_name,length(partition_name) + 2),'[^0-9]','') || '''
          for t in (select /*+parallel(sub,4)*/*
                      from sys.dba_tab_subpartitions sub
                     where table_owner = v_entity_owner
                       and partition_name = v_part_style || v_part_value_max
                       and table_name = v_entity_name
                     order by length(regexp_replace(subpartition_name, '[0-9]', '')),subpartition_name) loop
          v_high_value:=t.high_value;
          v_subpart_value:=substr(v_high_value,1,4000);
          /*if v_subpart_value= 'DEFAULT' then 
            v_subpart_value:='''DEFAULT''';
            end if;*/
            v_sub_template := v_sub_template ||' subpartition ' ||
                           substr(t.subpartition_name,
                                  length(t.partition_name) + 2) ||
                           ' values ( '||v_subpart_value||' ) ,' ;
          end loop;
          --日志检索
          dbms_output.put_line(rtrim(v_sub_template, ',') || ')');
          insert into dm_check_log
            select rtrim(v_sub_template, ',') || ')',
                   v_datacycle_id,
                   sysdate
              from dual;
          commit;
          execute immediate rtrim(v_sub_template, ',') || ')';
          v_part_value := to_char(add_months(to_date(v_part_value_max,
                                                     'yyyymm'),
                                             1),
                                  'yyyymm');
          while v_part_value <= v_datacycle_id loop
            v_sql := 'alter table ' || v_entity_owner || '.' ||
                     v_entity_name || ' add partition ' || v_part_style ||
                     v_part_value || ' 
  values less than (''' ||
                     to_char(add_months(to_date(v_part_value, 'yyyymm'), 1),
                             'yyyymm') || ''') tablespace ';
            /*dbms_output.put_line(v_sql);*/
          execute immediate v_sql;
            --需要分配分区(或者建表设置默认表空间)
            v_part_value := to_char(add_months(to_date(v_part_value,
                                                       'yyyymm'),
                                               1),
                                    'yyyymm');
          end loop;
          v_retcode := 'SUCCESS';
          v_retinfo := '成功';
        end if;
      end if;
    end if;
  end if;
end;