Question

While I have looked at different examples on the internet I am having trouble selecting data from multiple tables. I have 2 tables.

     1st  has 'logUID', 'groupUID' field.

the other

    2nd has 'logUID' , 'User ID' , 'LogEntry' , 'LogTypeUID'

What I am trying to accomplish is to get the log entries where the LogUID match each other and return the groupUID field , so I know which group the log was against. When I have tried select’s or joins I seem to be getting one logUID field repeating.

SELECT TOP 10000 [log].[dbo].[Logs].[LogUID], [log].[dbo].[LogGroups].[LogUID],     [Weblog].[dbo].[LogGroups].[GroupUID] 

FROM [log].[dbo].[LogGroups], [log].[dbo].[Logs] INNER JOIN [log].[dbo].[LogGroups] as LG
ON [log].[dbo].[Logs].[LogUID] = LG.LogUID ;

Any help.

Answer 1

You have the [LogGroups] table in there twice…

• FROM table1, table2 means table1 CROSS JOIN table2

So, just change your code to the following…

SELECT TOP 10000
  [Logs].[LogUID],
  [LogGroups].[LogUID],
  [LogGroups].[GroupUID]
FROM
  [log].[dbo].[Logs]
INNER JOIN
  [log].[dbo].[LogGroups]
    ON [Logs].[LogUID] = [LogGroups].LogUID ;