Query Count of rows

Hi Everyone,
I have a table Table1
Table1: ID, Name, Sales, Time
Sample data:
1, Loo, Y, 20-JUL-09 01.20.17.000000000 PM
2, Rey, Y, 20-JUL-09 01.20.17.000000000 PM
1, Loo, Y, 20-JUL-09 01.20.17.000000000 PM
1, Loo, Y, 20-JUL-09 01.20.17.000000000 PM
3, Bon, Y, 20-JUL-09 01.20.17.000000000 PM
1, Loo, Y, 19-JUL-09 01.20.17.000000000 PM
I want the result as:
1, 3
2, 1
3, 1
i.e employee with id 1 and count of his apperaince in the table where data is 20-JULY-09
Any suggestions and inputs are appreciated.
Thanks
Kasi

Hi,
user10651875 wrote:
Thanks that worked.
If i want to change the query to get the ID which is having a count > 20 keeping all the other clauses, what should i modify?Do you mean you only want to diplay rows where count>20 (if any)?
Add a HAVING clause, immediately after the GROUP BY clause:
SELECT    id
,       COUNT (*)     AS cnt
FROM       table1
WHERE       TRUNC (time)     = DATE '2009-07-20'
GROUP BY id
HAVING       COUNT (*)     > 20;HAVING is similar to WHERE, but WHERE is evaluated before aggregate functions (like COUNT in this example) are compute. HAVING is evaluated after the aggregate functions are computed, therefore, you can use them in the HAVING clause. (In fact, you should never have a HAVING clause that doesn't use aggregate functions.)

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import java.sql.*;
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2 /
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PL/SQL procedure successfully completed.
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2 SELECT ename,
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PLAN_TABLE_OUTPUT
Plan hash value: 1444408506
| Id | Operation           | Name | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT    |      |    14 |   728 |     4 (25)| 00:00:01 |
|* 1 | VIEW               |      |    14 |   728 |     4 (25)| 00:00:01 |
|   2 |   WINDOW BUFFER     |      |    14 |   252 |     4 (25)| 00:00:01 |
|   3 |    TABLE ACCESS FULL| EMP1 |    14 |   252 |     3   (0)| 00:00:01 |
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|   0 | SELECT STATEMENT      |      |     9 |   468 |     2   (0)| 00:00:01 |
|* 1 | VIEW                 |      |     9 |   468 |     2   (0)| 00:00:01 |
|* 2 |   COUNT STOPKEY       |      |       |       |            |          |
|   3 |    VIEW               |      |     9 |   351 |     2   (0)| 00:00:01 |
|   4 |     WINDOW BUFFER     |      |     9 |   162 |     2   (0)| 00:00:01 |
|   5 |      TABLE ACCESS FULL| EMP1 |     9 |   162 |     2   (0)| 00:00:01 |
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SY.
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