Hello,
I have a table with more than 1,000,000 rows.
mysqldescribe views_date;
+----------+-------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+----------+-------------+------+-----+---------+----------------+
| id | bigint(20) | NO | PRI | NULL | auto_increment |
| id_count | bigint(20) | YES | | NULL | |
| date | datetime | YES | | NULL | |
| type | int(3) | YES | | NULL | |
| ip | varchar(15) | YES | | NULL | |
| user | bigint(20) | YES | | NULL | |
+----------+-------------+------+-----+---------+----------------+
6 rows in set (0.00 sec)
This table is used to log info on which video the visitor has viewed
and its IP address.
Everytime a visitor views a video a new row is inserted.
Then I use the following query to know if the visitor has already
viewed the video:
mysqlSELECT count(*) from views_date WHERE id_count = $videoid AND
ip = '$ip';
+----------+
| count(*) |
+----------+
| 1 |
+----------+
1 row in set (6.19 sec)
mysqlexplain SELECT count(*) from views_date WHERE id_count = 8731
AND ip = '121.97.245.124 ';
+----+-------------+------------+------+---------------+------
+---------+------+---------+-------------+
| id | select_type | table | type | possible_keys | key |
key_len | ref | rows | Extra |
+----+-------------+------------+------+---------------+------
+---------+------+---------+-------------+
| 1 | SIMPLE | views_date | ALL | NULL | NULL |
NULL | NULL | 1089103 | Using where |
+----+-------------+------------+------+---------------+------
+---------+------+---------+-------------+
1 row in set (0.04 sec)
Can anyone give me tips on how to optimize the table to run faster
queries?
Thanks!
Antoni
3  4560 
On Mar 27, 4:15 pm, "Antoni" <antonimassom.. .@gmail.comwrot e:
Hello,
I have a table with more than 1,000,000 rows.
mysqldescribe views_date;
+----------+-------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+----------+-------------+------+-----+---------+----------------+
| id | bigint(20) | NO | PRI | NULL | auto_increment |
| id_count | bigint(20) | YES | | NULL | |
| date | datetime | YES | | NULL | |
| type | int(3) | YES | | NULL | |
| ip | varchar(15) | YES | | NULL | |
| user | bigint(20) | YES | | NULL | |
+----------+-------------+------+-----+---------+----------------+
6 rows in set (0.00 sec)
This table is used to log info on which video the visitor has viewed
and its IP address.
Everytime a visitor views a video a new row is inserted.
Then I use the following query to know if the visitor has already
viewed the video:
mysqlSELECT count(*) from views_date WHERE id_count = $videoid AND
ip = '$ip';
+----------+
| count(*) |
+----------+
| 1 |
+----------+
1 row in set (6.19 sec)
mysqlexplain SELECT count(*) from views_date WHERE id_count = 8731
AND ip = '121.97.245.124 ';
+----+-------------+------------+------+---------------+------
+---------+------+---------+-------------+
| id | select_type | table | type | possible_keys | key |
key_len | ref | rows | Extra |
+----+-------------+------------+------+---------------+------
+---------+------+---------+-------------+
| 1 | SIMPLE | views_date | ALL | NULL | NULL |
NULL | NULL | 1089103 | Using where |
+----+-------------+------------+------+---------------+------
+---------+------+---------+-------------+
1 row in set (0.04 sec)
Can anyone give me tips on how to optimize the table to run faster
queries?
Thanks!
Antoni
Try putting an index on ip and id_count
How do I put an index on them? Will I lost any data?
strawberry ha escrit:
On Mar 27, 4:15 pm, "Antoni" <antonimassom.. .@gmail.comwrot e:
Hello,
I have a table with more than 1,000,000 rows.
mysqldescribe views_date;
+----------+-------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+----------+-------------+------+-----+---------+----------------+
| id | bigint(20) | NO | PRI | NULL | auto_increment |
| id_count | bigint(20) | YES | | NULL | |
| date | datetime | YES | | NULL | |
| type | int(3) | YES | | NULL | |
| ip | varchar(15) | YES | | NULL | |
| user | bigint(20) | YES | | NULL | |
+----------+-------------+------+-----+---------+----------------+
6 rows in set (0.00 sec)
This table is used to log info on which video the visitor has viewed
and its IP address.
Everytime a visitor views a video a new row is inserted.
Then I use the following query to know if the visitor has already
viewed the video:
mysqlSELECT count(*) from views_date WHERE id_count = $videoid AND
ip = '$ip';
+----------+
| count(*) |
+----------+
| 1 |
+----------+
1 row in set (6.19 sec)
mysqlexplain SELECT count(*) from views_date WHERE id_count = 8731
AND ip = '121.97.245.124 ';
+----+-------------+------------+------+---------------+------
+---------+------+---------+-------------+
| id | select_type | table | type | possible_keys | key |
key_len | ref | rows | Extra |
+----+-------------+------------+------+---------------+------
+---------+------+---------+-------------+
| 1 | SIMPLE | views_date | ALL | NULL | NULL |
NULL | NULL | 1089103 | Using where |
+----+-------------+------------+------+---------------+------
+---------+------+---------+-------------+
1 row in set (0.04 sec)
Can anyone give me tips on how to optimize the table to run faster
queries?
Thanks!
Antoni
Try putting an index on ip and id_count
Antoni wrote:
How do I put an index on them? Will I lost any data?
strawberry ha escrit:
>>On Mar 27, 4:15 pm, "Antoni" <antonimassom.. .@gmail.comwrot e:
>>>Hello,
I have a table with more than 1,000,000 rows.
mysqldescrib e views_date;
+----------+-------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+----------+-------------+------+-----+---------+----------------+
| id | bigint(20) | NO | PRI | NULL | auto_increment |
| id_count | bigint(20) | YES | | NULL | |
| date | datetime | YES | | NULL | |
| type | int(3) | YES | | NULL | |
| ip | varchar(15) | YES | | NULL | |
| user | bigint(20) | YES | | NULL | |
+----------+-------------+------+-----+---------+----------------+
6 rows in set (0.00 sec)
This table is used to log info on which video the visitor has viewed
and its IP address.
Everytime a visitor views a video a new row is inserted.
Then I use the following query to know if the visitor has already
viewed the video:
mysqlSELEC T count(*) from views_date WHERE id_count = $videoid AND
ip = '$ip';
+----------+
| count(*) |
+----------+
| 1 |
+----------+
1 row in set (6.19 sec)
mysqlexpla in SELECT count(*) from views_date WHERE id_count = 8731
AND ip = '121.97.245.124 ';
+----+-------------+------------+------+---------------+------
+---------+------+---------+-------------+
| id | select_type | table | type | possible_keys | key |
key_len | ref | rows | Extra |
+----+-------------+------------+------+---------------+------
+---------+------+---------+-------------+
| 1 | SIMPLE | views_date | ALL | NULL | NULL |
NULL | NULL | 1089103 | Using where |
+----+-------------+------------+------+---------------+------
+---------+------+---------+-------------+
1 row in set (0.04 sec)
Can anyone give me tips on how to optimize the table to run faster
queries?
Thanks!
Antoni
Try putting an index on ip and id_count
see the docs for create index statement. And no you will not lose any data.
And BTW, you cannot be guaranteed that the person using that IP address has not
already viewed that particular movie. An unfortunate side-affect of DHCP.
--
Michael Austin
Database Consultant
Domain Registration and Linux/Windows Web Hosting Reseller http://www.spacelots.com This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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