oracle账号及权限设置oracle查询所有表的记录数SQL

oracle查询所有表的记录数SQL

查询用户所有表的总记录数, 并按总记录数进行排序. 

1、创建函数 

Sql代码  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_roracle账号ows;     return num_rows;  end;  

2.然后通过计算函数进行统计 

Sql代码  select table_name, count_rows(table_name)  nrows from user_tables order by nrows desc