Topic: SQL*Plus and PL/SQL >> About Number of Rows in a table
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| Title: About Number of Rows in a table |
| bhmadhukar |
Posted: Feb 20, 2008 08:35:59 AM |
Total Post: 14
Joined: Jan, 2008
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if i give below query,
select num_rows from user_tables where table_name like 'EMP';
output: default it has 14 rows & it is returning 14 rows.
but, i created a table with name EMPLOYEE (table) and inserted 5 rows. Again, i gave the query like below,
select num_rows from user_tables where table_name like 'EMPLOYEE';
output: it is not returing number of rows.
any solution or reason?
thanx in adv.
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 Mohammed Taj |
| Posted: Feb 20, 2008 10:23:05 AM |  |
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Total Post: 746
Joined: Jul, 2007
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you have to first analyze your new created table then query in dba_tables views.
1. create table a ( no number)
2. insert into a (100);
commit;
3. exec dbms_stats.gather_table_stats('TABLE','A');
4. select table_name,num_rows from dba_tables where table_name='A';
Regards
Taj
YOu have to always gather statistics to populate dictionary tables.
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