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On Version number: 9.6.621.0 we are facing exceptions on the following case:

executing update commands with multiple parameters where one of this parameter is a huge text being saved on a column of type 'Long' or of type 'CLOB'.

>>>>
on oracle version 12.2.0.1.0

no errors

>>>>
on oracle version 12.1.0.2.0

if the text has lots of characters (>4000)
we get the exception when using OracleDbType.VarChar or OracleDbType.Long

if the text has fewer character (<4000)
we get the exception when using OracleDbType.Long

>>>>
on oracle version 11.2.0.1.0
if the text has lots of characters (>4000)
we get the exception when using OracleDbType.VarChar

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