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Old 12 Mar 2002, 17:31
TECK's Avatar
TECK TECK is offline
 
Join Date: Dec 2001
Real name: Floren Munteanu
LEFT JOIN in tables?

can you please explain to me what are the LEFT JOIN functions when doing a query?
i see it all the time when grabbing some code from a table.

thanks alot.
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Old 12 Mar 2002, 17:37
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Chen Chen is offline
 
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Shouldn't you, eh... get married instead of mumbling about JOINs?
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  #3  
Old 12 Mar 2002, 21:08
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Mark Hensler Mark Hensler is offline
 
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(inner) joins combine two tables where a field in table1 match a field in table2. any records that do not have a match, are thrown out of the resulting recordset

left joins include all matches and any orphan records from the left table

right joins appear to do the same but really reverse the table order, then perfom a left join

outer joins include all records


all records that do not have a matching record from the other table will have null values for those fields
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Old 13 Mar 2002, 05:08
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TECK TECK is offline
 
Join Date: Dec 2001
Real name: Floren Munteanu
thanks alot mark.
firefly, ur not gonna believe it.. the plane broke down.. i post in details what happened in Lounge..
i will be leaving tomorrow at 4pm.. grrrrrr
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