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oracle查询所有表的记录数SQL

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Release: 2016-06-07 15:13:15
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欢迎进入Oracle社区论坛,与200万技术人员互动交流 >>进入 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 auth

欢迎进入Oracle社区论坛,与200万技术人员互动交流 >>进入

  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_rows;

  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

oracle查询所有表的记录数SQL

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