ORA-12742: unable to create the collation key
Cause:
The character argument of a collation-sensitive operator was too long or it had too many decomposable characters to create a collation key for it in the available buffer space.
Action:
Shorten the argument value or, if using a UCA-based collation, increase the ratio of characters with short or no Unicode decomposition to characters with long Unicode decomposition in the value.
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