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MySQL Join vs. Left Join, etc
I have two tables that are related.
In one table, there's a list of tags and products they're associated with. (Row 1 = Tag, Row 2 = Product ID)
In the second table, there's the list of products the actual products. (Row 1 = Product ID, Row(s) 2-X other product info)
I know that getting the two together requires a join of some sort.
How would you go phrasing the SQL query to
(From Table 1)
?
Thanks!
In one table, there's a list of tags and products they're associated with. (Row 1 = Tag, Row 2 = Product ID)
In the second table, there's the list of products the actual products. (Row 1 = Product ID, Row(s) 2-X other product info)
I know that getting the two together requires a join of some sort.
How would you go phrasing the SQL query to
(From Table 1)
"Select * from TAG where TAG = "x"
(and then display (from table 2))
All product IDs identified from Table 1
?
Thanks!
MySQL Server
Last Comment
erzoolander
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ASKER
Awesome!
One last question.
I'm trying to do a left join on one table... The column is formatted as
product/x
(where x has been defined earlier..)
What would the syntax be to say:
LEFT JOIN product_alias t5 on t5.src = 'product/'.t1.productid
Can I do something like that?
One last question.
I'm trying to do a left join on one table... The column is formatted as
product/x
(where x has been defined earlier..)
What would the syntax be to say:
LEFT JOIN product_alias t5 on t5.src = 'product/'.t1.productid
Can I do something like that?
Try
SELECT *
FROM Table1 t1
LEFT JOIN Table2 t2 ON t2.ProductId = t1.ProductId
LEFT JOIN product_alias t5 on t5.src = 'product/'+convert(varchar
WHERE t1.Tag = 'X'
SELECT *
FROM Table1 t1
LEFT JOIN Table2 t2 ON t2.ProductId = t1.ProductId
LEFT JOIN product_alias t5 on t5.src = 'product/'+convert(varchar
WHERE t1.Tag = 'X'
ASKER
Nope, unfortunately!
I assume you mean you don't get any matches?
Can you give an example how product_alias.src actually looks like?
Can you give an example how product_alias.src actually looks like?
Excuse me. U should close this question and open a new question for your second query.
ASKER
True - I thought about that but got all excited and asked right away :)
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