select * from
user_tables;
select * from user_views;
select * from user_sequences;
select * from user_triggers;
想查找表的數(shù)據(jù)條數(shù)
試試這個(gè)
select t.table_name,t.num_rows from user_tables t
如果沒有值,那就創(chuàng)建個(gè)函數(shù)
代碼
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
再執(zhí)行查詢
select table_name, count_rows(table_name) nrows from user_tables