A check constraint can also be created or added as a table constraint.

   
SQL>
SQL> CREATE TABLE myTable
  2  (policy_id      NUMBER
  3  ,holder_name    VARCHAR2(40)
  4  ,gender         VARCHAR2(1) constraint chk_gender CHECK   (gender in ('M','F'))  --inline syntax
  5  ,marital_status VARCHAR2(1)
  6  ,date_of_birth  DATE
  7  
  8  ,constraint chk_marital CHECK (marital_status in ('S' ,'M'  ,'D' ,'W'))
  9  );

Table created.

SQL>
SQL> drop table myTable;

Table dropped.

SQL>

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4.	add constraint for a column: check (gender in ('MALE', 'FEMALE'))
5.	Constraint check with 'upper' function
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7.	Violate constraints
8.	Check date type column for nullable and value range
9.	Check nullable and value range for one single column data
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12.	Add constraint to ensure that value from one column is bigger than that from another
13.	Setting CHECK constraint for number type field
14.	Setting the Check constraint for int value field during declaration
15.	Syntax for adding check constraint to a column
16.	Use decode() function in check constraints
17.	Violate a check constraint
18.	alter table dept add emp_count number, constraint must_be_between_3_8, check(emp_count between 3 and 8 OR emp_count = 0), deferrable initially deferred
19.	Could only contain three values
20.	Must be upper case

A check constraint can also be created or added as a table constraint. : Constraint Check « Constraints « Oracle PL / SQL

Related examples in the same category