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Qlik ODBC Connector package cut long Teradata filednames to 30 characters

Article Number: 000031333 | Last Modified: 2019/01/17

Description

When using Teradata connector in Qlik ODBC Connector Package to connect to a Teradata database, filed names which are longer than 30 characters will be shorten to 30 first characters. As a result, Data preview and reload fails with error "Column <shortened name> not found".

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Cause

This is a known limitation of Qlik ODBC Connector Package, which is currently investigated in bug QVXODBC-744

Resolution

Consider the following work-around solutions:
  • Modify filed names in the database to make sure imported field names are shorter than 30 chars
  • Use SELECT * instead of SELECT <fields> in the reload script. Note: this will load all data from the table, which will increase traffic between QlikView/ Qlik Sense and Teradata. Unnecessary fields may need to be removed later by resident loading and dropping the temp table. This solution should only be applied for small data tables.
  • Configure a generic ODBC connection using official Teradata ODBC driver instead of Qlik ODBC Connector package. Teradata ODBC driver can be downloaded at http://downloads.teradata.com/download/connectivity/odbc-driver/windows

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