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IBM Data and AI Ideas Portal for Customers

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Status Under review
Created by Guest
Created on Jan 31, 2024


We have a table with a XML column defined NOT NULL. 
We periodically transfer data from production to preproduction using unload/load.
Because XML column has value nobody have to read after having transfered data applications execute a sql update  for all rows.
Because rows to update are about 14 million the update is quite long anf heavy.
My idea is to unload rows from table setting the xml column with the fix string and avoid to execute the update  because the xml column will be already changed after the load.
I can't do it. CONSTANT option is not allowed for XML columns also you can't specify DEFAULTIF for XML columns. Without this option it is not possible to UNLOAD&LOAD the XML column with constant value.  Loading data by using the cross-loader function the xml column can be set BUT  unfortunately this solution  works only if in target table XML column will be specify without NOT NULL clause!

See case TS014808321


Needed By Not sure -- Just thought it was cool