I want to count for each gallery number of images in it, here's my query:
$req = db_query("SELECT count(*) FROM node,node_file WHERE node.nid = node_file.nid AND nid = ".$value['nid']);
here's the two tables :
node_file:
nid |fid |
-------------
1 | 1 |
-------------
1 | 2 |
-------------
1 | 3 |
-------------
2 | 1 |
-------------
2 | 2 |
-------------
2 | 3 |
node:
nid |type |
-------------
1 |Gallery1|
-------------
2 |gallery2|
The error : Query : SELECT count(*) FROM node,node_file WHERE node.nid = node_file.nid AND nid = 34 Message : SQLSTATE[23000]: Integrity constraint violation: 1052 Column 'nid' in where clause is ambiguous
Thanks!
Both of your tables have column nid
and you are using column in AND
clause so you need to specify to which table it belongs.
SELECT
count(*)
FROM
node,
node_file
WHERE
node.nid = node_file.nid AND node.nid = 34
OR
SELECT
count(*)
FROM
node,
node_file
WHERE
node.nid = node_file.nid AND node_file.nid = 34
用这个
$req = db_query("SELECT count(*) FROM node,node_file WHERE node.nid = node_file.nid AND node.nid = ".$value['nid']);
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