EEK
Tables structures :P
mysql describe CompanyDetails;
+---+---+--+-+-+
+
| Field | Type | Null | Key | Default |
Extra |
+---+---+--+-+-+
+
| CompanyID | tinyint(4) unsigned | | PRI | NULL|
auto_increment |
| CompanyActive | enum('1','0') | | MUL | 0 |
|
| CompanySuspended | enum('0','1','2','3','4','5') | | MUL | 0 |
|
snip
mysql describe CompanyDNSZones;
+--+
---+--+-+-++
| Field| Type
| Null | Key | Default | Extra |
+--+
---+--+-+-++
| ZoneID | int(11)
| | PRI | NULL| auto_increment |
| CompanyID| smallint(6)
| | MUL | 0 ||
| ZoneName | varchar(250)
| | UNI | ||
| ZoneServices |
set('HasMail','HasMailingList','HasBackupMail','IsMegaDNS','IsSecondary') |
| MUL | ||
- Original Message -
From: Chris Knipe [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Saturday, August 17, 2002 11:44 PM
Subject: where clause structures
Lo everyone,
I seem to be having a problem with the structuring of my query - more
specifically, with the WHERE clause...
mysql SELECT ZoneName
- FROM CompanyDNSZones
- LEFT JOIN CompanyDetails ON
CompanyDetails.CompanyID=CompanyDNSZones.CompanyID
- WHERE CompanyDetails.CompanySuspended='0' AND
- CompanyDNSZones.ZoneName='megalan.co.za' AND
- CompanyDNSZones.ZoneServices LIKE '%HasMail%' OR
- CompanyDNSZones.ZoneServices LIKE '%HasMailingList%';
+-+
| ZoneName|
+-+
| megalan.co.za |
| lists.megalan.co.za |
+-+
2 rows in set (0.01 sec)
How do I get it to only return the item specified in the WHERE clause?
I explictly tell MySQL in my where clause to only return results where
CompanyDNSZones.ZoneName='megalan.co.za', so where does it fall out
returning lists.megalan.co.za as well?
--
me
PS: Just for interest takes, can LEFT / RIGHT / a combination of LEFT
RIGHT joins be used to cross-reference three or more tables, or is it
limited to 2 tables only?
-
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