Error while running QTD using TODATE

Question

Hi All,
I am having two tables TIME_DIM (YEAR->Quarter->Month) with ID
Iam having a sales fact table (ID,TIME_ID,Sales).
I have a time dimension with Year at root level and Month as ChronologicalKey.
I have made a aggregation rule as sum on Sales column of FACT table.
I have created a new logical column QTD sales with TODATE(SALES,Quarter).
I get no errors when I do a global consistency check.
In answers, when I run using QTD Sales , My BI server gets shutdown and gives an ODBC error with
State: HY000. Code: 10058. [NQODBC] [SQL_STATE: HY000] [nQSError: 10058] A general error has occurred. [nQSError: 12002] Socket communication error at call=recv: (Number=10038) An operation was attempted on something that is not a socket. (HY000)
SQL Issued: SELECT REVENUE_TIM_DIM.FISCAL_YEAR saw_0, REVENUE_TIM_DIM.QUARTER saw_1, REVENUE_TIM_DIM."MONTH" saw_2, "REVENUE_TIM_DIM"."KEY_ID" saw_3, Sales.SALES saw_4, Sales."QTD Sales" saw_5 FROM Test ORDER BY saw_0, saw_1, saw_2, saw_3
Any help would be appreciated.
Regards
(S.Prashant)

Answer 1

Since the column definition and the consistency check aren't throwing errors, we'll assume that your OBIEE columns are properly configured. That points us toward a problem somewhere in the database itself when executing the query, or to an incompatibility between columns in the query.
So let's start with a simpler query. Try running the query without the Year and Month columns, just Quarter and QTD Sales. Does that work? If so, there's your problem. After all, what is the QTD value for a year-level time dimension value? It has no meaning. Now add the Month column back into the query. Does that run? Try to break the query down to its very simplest form, then add columns until you find the culprit.
If the query does not run even with just Quarter and QTD Sales, you can diagnose the query by setting your user's logging level to 2, and running the simple Quarter and QTD Sales query. Let it fail. At at that point, you should be able to look at the session log (Manage Sessions, or look at nqquery.log) and pick out the PHYSICAL SQL that was sent to the database. Grab that Physical SQL and execute it on the database, using Toad or SQL Developer, whatever tool you like. It's possible that there is a database option whose flag isn't set to YES in the repository (Physical Layer, database object, Database Features tab).
By the way, the phrase "root level" in a hierarchy typically means the lowest level, like the roots on a tree. In your case, that would be Month.