Data Element Length - Restriction / Best Practice

Many databases in the market currently allows table/column names to be 128 characters long. Our developers are suggesting that 30-35 characters is the limit one should strive for.
One thought is that Business Objects cannot handle queries bigger than 64K u2013 is this true? If a query has several filters or results fields that are very long will that be a problem?
Also, is there some potential usage issue / best practice by which using a shorter name would be advantageous in Business Objects?
Our tool stack is SQL Server 2005 / Informatica 8.1.1 / Business Objects XI R2

Hi Jennifer,
I am not sure if the 64K limit is true. However, given that this is the query string that BO is passing to your SQL Server, it would be a limit
The following query is 2k, so you can imagine that a 64k one would be difficult to read
SELECT
     A_Long_Table_Name.TestField1,
     A_Long_Table_Name.TestField12,
     A_Long_Table_Name.TestField22,
     A_Long_Table_Name.TestField32,
     A_Long_Table_Name.TestField42,
     A_Long_Table_Name.TestField52,
     A_Long_Table_Name.TestField62,
     A_Long_Table_Name.TestField72,
     Another_Long_Table_Name.TestField1,
     Another_Long_Table_Name.TestField12,
     Another_Long_Table_Name.TestField13,
     Another_Long_Table_Name.TestField14,
     Another_Long_Table_Name.TestField15,
     Another_Long_Table_Name.TestField16,
     Another_Long_Table_Name.TestField17
FROM
     A_Long_Table_Name,
     Another_Long_Table_Name
WHERE
     A_Long_Table_Name.TestField1 =      Another_Long_Table_Name.TestField1
UNION ALL
SELECT
     A_Long_Table_Name2.TestField1,
     A_Long_Table_Name2.TestField12,
     A_Long_Table_Name2.TestField22,
     A_Long_Table_Name2.TestField32,
     A_Long_Table_Name2.TestField42,
     A_Long_Table_Name2.TestField52,
     A_Long_Table_Name2.TestField62,
     A_Long_Table_Name2.TestField72,
     Another_Long_Table_Name.TestField1,
     Another_Long_Table_Name.TestField12,
     Another_Long_Table_Name.TestField13,
     Another_Long_Table_Name.TestField14,
     Another_Long_Table_Name.TestField15,
     Another_Long_Table_Name.TestField16,
     Another_Long_Table_Name.TestField17
FROM
     A_Long_Table_Name2,
     Another_Long_Table_Name
WHERE
     A_Long_Table_Name2.TestField1 =      Another_Long_Table_Name.TestField1
On the object names, I do not believe you will recieve any noticable difference in performance. It is better to keep the names of columns and tables legible, and your DBAs suggestion of 30-35 is about right.
Regards
Alan

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