Error starting at line : 17 in command -
INSERT INTO STUDENT VALUES ('Smith', 17, 1, 'CS')
Error report -
SQL Error: ORA-12899: value too large for column "SYSTEM"."STUDENT"."STUDENT_NUMBER" (actual: 2, maximum: 1)
12899. 00000 -  "value too large for column %s (actual: %s, maximum: %s)"
*Cause:    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.
*Action:   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).

Error starting at line : 18 in command -
INSERT INTO STUDENT VALUES ('Brown', 8, 2, 'CS')
Error report -
SQL Error: ORA-00001: unique constraint (SYSTEM.SYS_C007131) violated
00001. 00000 -  "unique constraint (%s.%s) violated"
*Cause:    An UPDATE or INSERT statement attempted to insert a duplicate key.
           For Trusted Oracle configured in DBMS MAC mode, you may see
           this message if a duplicate entry exists at a different level.
*Action:   Either remove the unique restriction or do not insert the key.