首先建立一个计算函数
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
create or replace function count_rows(table_name in varchar2,
owner in varchar2 default null)
return number
authid current_user
IS
num_rows number;
stmt varchar2(2000);
begin
if owner is null then
stmt := 'select count(*) from "'||table_name||'"';
else
stmt := 'select count(*) from "'||owner||'"."'||table_name||'"';
end if;
execute immediate stmt into num_rows;
return num_rows;
end;
然后通过计算函数进行统计
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
create or replace function count_rows(table_name in varchar2,
owner in varchar2 default null)
return number
authid current_user
IS
num_rows number;
stmt varchar2(2000);
begin
if owner is null then
stmt := 'select count(*) from "'||table_name||'"';
else
stmt := 'select count(*) from "'||owner||'"."'||table_name||'"';
end if;
execute immediate stmt into num_rows;
return num_rows;
end;
然后通过计算函数进行统计
select table_name, count_rows(table_name) nrows from user_tables
本文转自pizibaidu 51CTO博客，原文链接：http://blog.51cto.com/pizibaidu/1683502，如需转载请自行联系原作者
