conditional update records mysql query
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Shakti Singh
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Published on 2010-12-25T09:39:53Z
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2010/12/25
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Hi,
Is there any single msql query which can update customer DOB?
I want to update the DOB of those customers which have DOB greater than current date.
example:- if a customer have dob 2034 update it to 1934 , if have 2068 updated with 1968
.
There was a bug in my system if you enter date less than 1970 it was storing it as 2070. The bug is solved now but what about the customers which have wrong DOB. So I have to update their DOB.
All customers are stored in customer_entity
table and the entity_id
is the customer_id
Details is as follows:-
desc customer_entity
-> ;
+------------------+----------------------+------+-----+---------------------+----------------+
| Field | Type | Null | Key | Default | Extra |
+------------------+----------------------+------+-----+---------------------+----------------+
| entity_id | int(10) unsigned | NO | PRI | NULL | auto_increment |
| entity_type_id | smallint(8) unsigned | NO | MUL | 0 | |
| attribute_set_id | smallint(5) unsigned | NO | | 0 | |
| website_id | smallint(5) unsigned | YES | MUL | NULL | |
| email | varchar(255) | NO | MUL | | |
| group_id | smallint(3) unsigned | NO | | 0 | |
| increment_id | varchar(50) | NO | | | |
| store_id | smallint(5) unsigned | YES | MUL | 0 | |
| created_at | datetime | NO | | 0000-00-00 00:00:00 | |
| updated_at | datetime | NO | | 0000-00-00 00:00:00 | |
| is_active | tinyint(1) unsigned | NO | | 1 | |
+------------------+----------------------+------+-----+---------------------+----------------+
11 rows in set (0.00 sec)
And the DOB is stored in the customer_entity_datetime
table the column value
contain the DOB. but in this table values of all other attribute are also stored such as fname,lname etc. So the attribute_id
with value 11
is DOB attribute.
mysql> desc customer_entity_datetime;
+----------------+----------------------+------+-----+---------------------+----------------+
| Field | Type | Null | Key | Default | Extra |
+----------------+----------------------+------+-----+---------------------+----------------+
| value_id | int(11) | NO | PRI | NULL | auto_increment |
| entity_type_id | smallint(8) unsigned | NO | MUL | 0 | |
| attribute_id | smallint(5) unsigned | NO | MUL | 0 | |
| entity_id | int(10) unsigned | NO | MUL | 0 | |
| value | datetime | NO | | 0000-00-00 00:00:00 | |
+----------------+----------------------+------+-----+---------------------+----------------+
5 rows in set (0.01 sec)
Thanks.
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