Oracle 统计用户下表的数据量

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。

所属用户 表名 分区字段 数据量 收集时间

OWNER TABLE_NAME PART_COL ROW_S GATHER_TIME
LCA F_AMRETIREORDER CREATE_TIME 9973 2017/9/12 10:35:07
LCA MENU_LOG CREATE_TIME 9908156 2017/9/12 10:31:26
LCA PUB_LOGS 9881080 2017/9/12 10:31:21
LCA FT_ACTROLE CODE 9663 2017/9/12 10:34:46

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$%'
union all
select owner,column_name
from dba_subpart_key_columns
where owner in ('TEST')
and object_type = 'TABLE'
and name not like 'BIN$%')
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; /

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