After the number length of Oracle exceeds 19, the entity uses long mapping. Why does this cause problems?

Oracle Of NUMBER The length exceeds 19 after , Entity use Long mapping , The row information cannot be obtained , Lead to undo_log Can't insert , Cannot roll back ？

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Take the answer 1：

Oracle Of NUMBER The length exceeds 19 after , use Long Words ,setObject Will not find out the data , The Long It is amended as follows BigInteger or BigDecimal Problem solvable .

This answer is to sort out the self nailing group “3 Group -Seata Open source discussion group ”

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