ora06502 plsql numeric or value error character string buffer too small


What is “ora06502 plsql numeric or value error character string buffer too small”?

“ora06502 plsql numeric or value error character string buffer too small” is an error that can occur in PL/SQL when a character string is too small to hold the requested number of characters. Typically, this happens when a VARCHAR2 variable is declared with a length that is too small to hold the data being stored in it.

How can this error be fixed?

The error ORA-06502: PL/SQL: numeric or value error: character string buffer too small can be fixed by increasing the size of the character string buffer. This can be done by setting the size of the buffer to a larger value, or by using a different data type that can hold a larger value.

What are some common causes of this error?


The ORA-06502 error is caused by an arithmetic, numeric, string, conversion, or data type error. In other words, something has gone wrong with an attempted mathematical operation, numeric conversion, character string manipulation, or data type assignment. This error can occur when:

-You attempt to store a number that is too large for the number column
-You attempt to store a value that is not a number in a number column
-You attempt to concatenate a character string that is too long for the character string column
-You attempt to convert a character string to a number and the string contains characters that cannot be converted to numbers

How can this error be prevented?

This error is typically caused by trying to insert a string value into a numeric column. In order to prevent this error, you can either change the data type of the column to varchar2 or use the to_number function to convert the string value into a number before inserting it into the column.


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