ORA-01401 inserted value too large for column

I got ” ORA-01401 inserted value too large for column ”  error in Oracle database.

ORA-01401 inserted value too large for column

Details of error are as follows.

ORA-01401 inserted value too large for column
Cause: The value entered is larger than the maximum width defined for the column.

Action: Enter a value smaller than the column width or use the MODIFY option with
 ALTER TABLE to expand the column width.

inserted value too large for column

This ORA-01401 error is related to the value entered is larger than the maximum width defined for the column.

Enter a value smaller than the column width or use the MODIFY option with ALTER TABLE to expand the column width.

For example; I have created test table and id column has NOT NULL constraint as follows.

CREATE TABLE TEST_TABLE
(
id NUMBER(2) NOT NULL,
name VARCHAR2(10)
);

When you insert more than 10 characters value, you will get this error.

INSERT INTO TEST_TABLE (id, name)
VALUES (1,'Mehmet Salih');

ORA-01401 inserted value too large for column

To solve this error, Enter a value smaller than the column width or use the MODIFY option with ALTER TABLE to expand the column width as follows.

INSERT INTO TEST_TABLE (id, name) VALUES (1,'Mehmet');

OR  modify Column size as follows.

alter table TEST_TABLE modify name VARCHAR2(20);

Do you want to learn Oracle Database for Beginners, then read the following articles.

Oracle Tutorial | Oracle Database Tutorials for Beginners ( Junior Oracle DBA )