Mysql select statement
I need a proper way to write a simple WHERE, AND, OR statement. This one doesn't work:
SELECT `content`
FROM `bx_wall_events`
开发者_StackOverflowWHERE `type` = 'wall_common_text'
OR `type` = 'wall_common_fb'
OR `type`= 'wall_common_tw'
AND `owner_id`='{$iId}'
ORDER BY `date` DESC
LIMIT 1
It's a valid statement, but I imagine the issue is the ORs aren't being interpreted like you'd expect. Use the IN syntax instead:
SELECT content
FROM bx_wall_events
WHERE `type` IN ('wall_common_text', 'wall_common_fb', 'wall_common_tw')
AND `owner_id` = '{$iId}'
ORDER BY `date` DESC
LIMIT 1
I removed the backticks in certain spots because they're only necessary for escaping table & column names that are using MySQL reserved keywords.
The way this:
WHERE `type` = 'wall_common_text'
OR `type` = 'wall_common_fb'
OR `type`= 'wall_common_tw'
AND `owner_id`='{$iId}'
...is evaluating is:
WHERE (`type` = 'wall_common_text')
OR (`type` = 'wall_common_fb')
OR (`type`= 'wall_common_tw' AND `owner_id`='{$iId}')
"SELECT content
FROM bx_wall_events
WHERE ((type
= 'wall_common_text') || (type
= 'wall_common_fb') || (type
= 'wall_common_tw'))
AND owner_id
='{$iId}' ORDER BY date
DESC LIMIT 1"
Found a great solution using the IN
"SELECT `content`
FROM `bx_wall_events`
WHERE `owner_id`='{$iId}'
AND `type`
IN ('wall_common_text', 'wall_common_fb', 'wall_common_tw')
ORDER BY `date`
DESC LIMIT 1"
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