Oracle 11g 间隔分区(INTERVAL)批量规范命名

--Oracle 11g 间隔分区(INTERVAL)重命名，批量生成rename分区脚本
set linesize
180
set serverout on
declare
v_table_owner          varchar2(100) :=
'OP%';
v_table_name_day_p     varchar2(100);
v_table_name_month_p
varchar2(100);
v_print                number:=1; --1:只打印执行脚本，2，DB直接执行
v_new_partition_name   varchar2(100);
v_sql
varchar2(2000);
vSqlerrm               varchar2(256);
begin
for i
in (select t1.table_owner,
t2.table_name,
t1.partition_name,
t2.interval,
t1.high_value
from
dba_tab_partitions t1,dba_part_tables t2
where t2.owner =
t1.table_owner
and t2.table_name = t1.table_name
and t1.interval =
'YES'
and t2.partitioning_type='RANGE'
and t1.partition_name like
'SYS\_%' escape '\'
and table_owner like v_table_owner order by
t1.table_owner,t1.partition_name) loop
if
i.interval='NUMTODSINTERVAL(1,''DAY'')' then
v_table_name_day_p :=
substr(i.table_name, 1, 19);  --日分区取前19位字符；
execute immediate 'select
to_char(' || i.high_value ||
' -
NUMTODSINTERVAL(1,''DAY''), ''"' ||
v_table_name_day_p
|| '"YYYY"M"MM"D"DD'') from dual'
into
v_new_partition_name;
elsif i.interval='NUMTOYMINTERVAL(1,''MONTH'')'
then
v_table_name_month_p := substr(i.table_name, 1, 23);
--月分区取前23位字符;
execute immediate 'select to_char(' || i.high_value
||
' - NUMTOYMINTERVAL(1,''MONTH''), ''"'
||
v_table_name_month_p || '"YYYY"M"MM'') from
dual'
into v_new_partition_name;
end if;
if v_print=1
then
dbms_output.put_line('alter table ' || i.table_owner || '.'
||i.table_name || ' rename partition ' ||i.partition_name || ' to ' ||
v_new_partition_name || ';');
elsif v_print=2 then
v_sql :=
'alter table ' || i.table_owner || '.' ||i.table_name || ' rename partition '
||i.partition_name || ' to ' || v_new_partition_name;
execute
immediate v_sql;
end if;
end loop;
exception
when others
then
vSqlerrm := sqlerrm;
dbms_output.put_line(vSqlerrm||'|'||v_sql);
end;