Writing a query to count entries for all tables

Question

I'd like to write a query to count the number of rows in every table for a given database. For example, if I have two tables in a database called TEST1 and TEST2 with 20 and 30 rows respectively, I'd like the output of the query to be
TABLE_NAME          ROW_COUNT
TEST1               20
TEST2               30
Any ideas?

Answer 1

or justin,
How about this
SQL> ed
Wrote file afiedt.buf
  1  declare
  2  t_count number;
  3  begin
  4    dbms_output.put_line('table_name          Num_rows  ');
  5    dbms_output.put_line('----------         ---------- ');
  6   for i in (select table_name  from user_tables) loop
  7    execute immediate 'select count(*) from '||i.table_name into t_count;
  8    dbms_output.put_line(i.table_name||'       '||t_count);
  9    end loop;
10* end;
SQL> /
table_name          Num_rows
EMP_TEST         0
BOOK            2
MONTH           36
BOOK_SALES           65
CURRENCY          2
EMP          18
BONUS          0
DEPT          5
SALGRADE         0
PLAN_TABLE         0
PL/SQL procedure successfully completed.