The “ORA-06502: PL/SQL: numeric or value error” error occurs when a PL/SQL block encounters an exception related to numeric or value errors. This error can be caused by various reasons, such as trying to assign a value that is too large for the target variable, or trying to use a character string in a numeric operation.
Here are some possible reasons for this error and ways to solve it:
- Invalid data type conversion: If you are trying to convert a value to a data type that is incompatible or too small for the value, the “ORA-06502” error can occur. To solve this error, make sure that the data types match or that the target data type can accommodate the value being converted.
- Incorrect data format: If you are trying to perform operations on a data value with an incorrect format or precision, the “ORA-06502” error can occur. To solve this error, make sure that the data format matches the operation being performed.
- Input parameter value out of range: If you are passing an input parameter value that is out of the acceptable range for the target variable, the “ORA-06502” error can occur. To solve this error, check the input parameter values and make sure they are within the acceptable range.
Here is an example code that generates the “ORA-06502” error:
DECLARE v_myNumber NUMBER(2) := 1234; BEGIN NULL; END; /
In the above code, we declared a variable “v_myNumber” of data type “NUMBER(2)” and assigned it a value of 1234, which is larger than the maximum value that can be stored in a “NUMBER(2)” data type. This will cause the “ORA-06502” error.
To fix this error, we can change the data type of the variable to “NUMBER(4)” to accommodate the value being assigned:
DECLARE v_myNumber NUMBER(4) := 1234; BEGIN NULL; END; /
In the corrected code, we modified the data type of the variable to “NUMBER(4)”, which can store values up to 9999.
In summary, the “ORA-06502: PL/SQL: numeric or value error” error can occur due to invalid data type conversion, incorrect data format, or input parameter value out of range. To solve the error, you need to identify the cause and take appropriate actions, such as checking the data types, data format, and input parameter values.