Oracle 统计用户下表的数据量实现脚本
要想统计用户下所有表的数据量，可以查看user_tables，此表里面是统计信息，当然这个可能不太准，要想非常精确，需要直接count表。下面的脚本有异常不中断，可以重复执行的特点。
create table bk_count_tables
(
owner VARCHAR2(30),
table_name VARCHAR2(30),
part_col varchar2(100),–分区字段
row_s number,
gather_time date
);
create index ind_bct_own_table on bk_count_tables(owner,table_name);
set serveroutput on
declare
cursor c_cursor is select s.OWNER, s.TABLE_NAME, col.column_name part_col
from dba_tables s,
(select owner,
name,
listagg(column_name, ‘,’) within group(order by null) column_name
from (select owner, name, column_name
from dba_part_key_columns
where owner in (‘TEST’)
and object_type = ‘TABLE’
and name not like ‘BIN$%’
union all
select owner, name, column_name
from dba_subpart_key_columns
where owner in (‘TEST’)
and object_type = ‘TABLE’
and name not like ‘BIN$%’)
group by owner, name) col
where s.OWNER in (‘TEST’)
and not regexp_like(table_name, ‘[0-9]{3,8}’)
and s.table_name not like ‘%BAK%’
and s.table_name not like ‘%A2K%’
and s.table_name not like ‘BK%’
and s.table_name not like ‘BIN%’
and s.OWNER = col.owner(+)
and s.TABLE_NAME = col.name(+)
order by s.TABLE_NAME ;
c_row c_cursor%rowtype;
t_rows number;
begin
for c_row in c_cursor loop
begin
execute immediate ‘select count(*) from bk_count_tables where owner=:1 and TABLE_NAME=:2 and rownum=1’
into t_rows using c_row.OWNER,c_row.TABLE_NAME ;
if(t_rows = 0) then
execute immediate ‘select count(*) from “‘||c_row.TABLE_NAME||'”‘ into t_rows;
insert into bk_count_tables values(c_row.OWNER,c_row.TABLE_NAME,c_row.part_col,t_rows,sysdate);
commit;
end if;
EXCEPTION
WHEN OTHERS THEN
DBMS_OUTPUT.PUT_LINE(c_row.OWNER||’—‘||c_row.TABLE_NAME);
rollback;
end;
end loop;
end;
/
总结
以上所述是小编给大家介绍的Oracle 统计用户下表的数据量实现脚本，大家如有疑问可以留言，或者联系站长。感谢亲们支持！！！
