How to fix the Oracle error ORA-12899: value too large for column string (actual: string, maximum: string)?

In this post, you’ll learn more about the Oracle ErrorORA-12899: value too large for column string (actual: string, maximum: string) with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-12899: value too large for column string (actual: string, maximum: string)

Reason for the Error ORA-12899: value too large for column string (actual: string, maximum: string)

An attempt was made to insert or update a column with a value which is too wide for the width of the destination column. The name of the column is given, along with the actual width of the value, and the maximum allowed width of the column. Note that widths are reported in characters if character length semantics are in effect for the column, otherwise widths are reported in bytes.

How to fix the Error ORA-12899: value too large for column string (actual: string, maximum: string) ?

You can fix this error in Oracle by following the below steps

Examine the SQL statement for correctness. Check source and destination column data types. Either make the destination column wider, or use a subset of the source column (i.e. use substring).