Violate a ckeck constraint : Check « Table « Oracle PL/SQL Tutorial

SQL> create table myTable(
  2     col1 char(1)constraint check_col1 check (col1 in ('B','G','N'))
  3  );

Table created.

SQL>
SQL> insert into myTable values ('B');

1 row created.

SQL> insert into myTable values ('C');
insert into myTable values ('C')
*
ERROR at line 1:
ORA-02290: check constraint (JAVA2S.CHECK_COL1)
violated


SQL> insert into myTable values ('C')
  2
SQL>
SQL> drop table myTable;

Table dropped.

6.13.Check
	6.13.1.	Create a table with check constraint
	6.13.2.	Adding a CHECK Constraint
	6.13.3.	Use comparison operators with a CHECK constraint
	6.13.4.	Constraint with Two conditions
	6.13.5.	Add condition constraint with 'and' operator
	6.13.6.	Check constraint with decode and nvl2
	6.13.7.	Check constraint with MOD function
	6.13.8.	A column with upper case constraint
	6.13.9.	check constraint: must be positive value
	6.13.10.	Check constraint: one column must less than another column
	6.13.11.	Add constraint to ensure that value from one column is bigger than that from another
	6.13.12.	Salary column value cannot be greater than 1000
	6.13.13.	Setting CHECK constraint for number type field
	6.13.14.	Setting the Regular expression check for varchar field
	6.13.15.	Use char function to build default column value
	6.13.16.	Use decode() function in check constraints
	6.13.17.	Violate a ckeck constraint
	6.13.18.	Must be upper case