The query i want to the results should get updated in my customer_info table. I do know have any relation ships between the table, however i have to use inner join to run queries. Please help.
current tags table
_reader_ID_|__tag_no__|__area |_maxtime_____
| | |
Tag_logs table
reader_ID_|__tag_no__|timestamp___
| |
Aisle_info table
reader_ID_|_area_|
| |
customer_info table
name_|__email__|__reader_id |_tag_no|_area|_maxtime_
| | | | |
INSERT INTO customer_info
SELECT aisle_info.reader_ID, tag_no, aisle_info.area, customer_info.name, TIMESTAMPDIFF(SECOND,MIN(timestamp),MAX(timestamp)) AS MAXTIME FROM tag_logs INNER JOIN aisle_info ON tag_logs.reader_ID = aisle_info.reader_ID AND customer_info INNER JOIN current_tags ON customer_info.name = customer_info.name
WHERE tag_no = 3222813112261
1052 - Column 'tag_no' in field list is ambiguous
You should add the table name when a column is present in more then a table so assuming that tag_no is present in tag_logs table try tag_logs.tag_no
INSERT INTO customer_info
SELECT aisle_info.reader_ID
, tag_logs.tag_no
, aisle_info.area
, customer_info.name
, TIMESTAMPDIFF(SECOND,MIN(timestamp)
,MAX(timestamp)) AS MAXTIME
FROM tag_logs
INNER JOIN aisle_info ON tag_logs.reader_ID = aisle_info.reader_ID
AND customer_info
INNER JOIN current_tags ON customer_info.name = customer_info.name
WHERE tag_logs.tag_no = 3222813112261
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