PLS-00620: type mismatch found at 'string' among operands in a COALESCE expression

PLS-00620: type mismatch found at 'string' among operands in a COALESCE expression
Cause: In a COALESCE expression, the operands do not match in datatype, and it is unclear which implicit conversion is required to correct the mismatch.
Action: Change the operands so that their datatypes match. Consider using datatype conversion functions in the operands.

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小智 2018-08-30 19:02

PLS-00620：COALESCE表达式中的操作数之间的“ string ” 发现类型不匹配,
.原因：在COALESCE表达式中，操作数在数据类型中不匹配，并且不清楚需要哪个隐式转换来纠正不匹配。,
.操作：更改操作数，使其数据类型匹配。考虑在操作数中使用数据类型转换函数。,
.

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PLS-00620: type mismatch found at 'string' among operands in a COALESCE expression

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