Question

i have a problem with a query, for example with this one i can retrieve the records:

SELECT 
l.*, 
ll.f_cocacola as cocacola, 
 le.name AS deposit, 
 lp.price
FROM 
 KPC AS l, 
 KPC_cocacola AS ll, 
 KPC_deposit AS le, 
 KPC_price AS lp 
WHERE 
l.cod_deposit = le.id_deposit 
AND l.code = ll.code
AND lp.code = l.code
AND l.code_deposit = '002365' 

but now i need to include another date from another table -intranet- that has the fields code and url then need to show from this table the url field .. keep in mind that the relationship is on the code field.

so i change the query in this way:

SELECT l.*,ll.f_cocacola as cocacola, le.name AS deposit, 
lp.price, lintranet.url 
FROM tableX AS l, intranet_cocacola AS ll, tableX_deposit AS le, 
tableX_price AS lp, 
tableX_intranet as lintranet 
WHERE l.code_deposit = le.id_deposit
AND l.code = ll.code
AND lp.code = l.code 
AND l.code = lintranet.code
AND l.code_deposit = '456852147'

but the issue is that some records don’t have a url and if is not exist a url then this query don’t show me the record .. well what i need that even if there is not a url associated to a record i want to see that recorda, thanks

Answer 1

Rewrite your query using ANSI join syntax and use LEFT JOIN:

SELECT  l.*, ll.f_cocacola as cocacola, le.name AS deposit, 
        lp.price, lintranet.url 
FROM    tableX AS l,
JOIN    intranet_cocacola AS ll
ON      ll.code = l.code
JOIN    tableX_deposit AS le
ON      le.id_deposit = l.code_deposit
JOIN    tableX_price AS lp
ON      lp.code = l.code
LEFT JOIN
        tableX_intranet as lintranet
ON      lintranet.code = l.code
WHERE   l.code_deposit = '456852147'