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Teradata Query Assistance

Posted on 2013-11-21
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Last Modified: 2013-11-21
Can someone assist with this?  I am getting 3706 Syntax error, expected something between ',' and 'LEFT' keyword:

SELECT TOP 500 * 
FROM (SELECT l.CustomerID, l.DateCreated, l.TranType, l.BeforeImage, l.AfterImage, l.Initials, c.LastName 
FROM PROD_STEAKHOUSE_TB.TranLog l
   LEFT OUTER JOIN PROD_STEAKHOUSE_TB.Customer c ON l.CustomerID = c.CustomerID WHERE l.TranType = 'Res Chg' AND c.LastName LIKE 'k%' 
UNION SELECT l.CustomerID, l.Time_Stamp, 'SEC', LEFT(l.ActionContext + N' ' + CASE WHEN l.AuthSuccess = 1 THEN 'Success' 
   ELSE 'Failure' END + N' on ' + l.PhysicalLocation, 255), '', ISNULL(w.WaiterInitials, ''), ISNULL(c.LastName, '') FROM PROD_STEAKHOUSE_TB.SecurityLog AS l 
     LEFT OUTER JOIN PROD_STEAKHOUSE_TB.Waiter w ON l.WaiterID = w.WaiterID 
     LEFT OUTER JOIN PROD_STEAKHOUSE_TB.Customer c UNION ON l.CustomerID = c.CustomerID WHERE  'SEC' = 'Res Chg' AND c.LastName LIKE 'kr%' ) a 
ORDER BY DateCreated DESC;

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Question by:codyvance1
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6 Comments
 
LVL 42

Expert Comment

by:pcelba
ID: 39667638
I am not Terradata expert but what means  " UNION ON " inside the last LEFT JOIN ?

Also 'SEC' = 'Res Chg'  cannot evaluate to True so the whole command can be reduced to
SELECT TOP 500 * 
FROM (SELECT l.CustomerID, l.DateCreated, l.TranType, l.BeforeImage, l.AfterImage, l.Initials, c.LastName 
FROM PROD_STEAKHOUSE_TB.TranLog l
   LEFT OUTER JOIN PROD_STEAKHOUSE_TB.Customer c ON l.CustomerID = c.CustomerID WHERE l.TranType = 'Res Chg' AND c.LastName LIKE 'k%') a 
ORDER BY DateCreated DESC;

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Author Comment

by:codyvance1
ID: 39667661
TO be honest, someone else created this and is no longer available to troubleshoot..
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LVL 13

Assisted Solution

by:magarity
magarity earned 150 total points
ID: 39667760
I think the problem is the UNION ON in the join should just be ON.

The 'SEC' = 'Res Chg' will work - that's Teradata's column aliasing at work in the third element of the UNION statement on line 5.
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LVL 42

Accepted Solution

by:
pcelba earned 350 total points
ID: 39667767
So the final result could be:

SELECT TOP 500 l.CustomerID, l.DateCreated, l.TranType, l.BeforeImage, l.AfterImage, l.Initials, c.LastName 
  FROM PROD_STEAKHOUSE_TB.TranLog l
  LEFT OUTER JOIN PROD_STEAKHOUSE_TB.Customer c ON l.CustomerID = c.CustomerID
 WHERE l.TranType = 'Res Chg' AND c.LastName LIKE 'k%'
 ORDER BY l.DateCreated DESC;

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The removed UNION part was in the command for some future extensions planned.
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Author Closing Comment

by:codyvance1
ID: 39667778
Thanks that worked
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LVL 42

Expert Comment

by:pcelba
ID: 39667785
The 'SEC' = 'Res Chg' will work ??

Maybe yes... If the 'SEC' is handled as quoted column name and 'Res Chg' is either quoted column name or string constant. I don't know whether Teradata handles quoted identifiers this mixed way...

I know T-SQL and some MySQL and 'SEC' means a character string constant obviously. It should result into constant value in the third column but quoted column name is also an explanation.

The more exact answer could be possible if we would know your data model.
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