Add constraint for date type column : Constraint Check « Constraints « Oracle PL / SQL

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Oracle PL / SQL » Constraints » Constraint Check

Add constraint for date type column


   

SQL>

SQL> CREATE TABLE product (

  2       product_name  VARCHAR2(25),

  3       product_price NUMBER(4,2),

  4       last_stock_date date

  5       );



Table created.



SQL>

SQL> ALTER TABLE product ADD (

  2       CONSTRAINT reasonable_date CHECK(

  3            TO_CHAR(last_stock_date, 'YYYY-MM-DD') >= '2001-12-31'

  4            )

  5       );



Table altered.



SQL>

SQL>

SQL> drop table product;



Table dropped.

Related examples in the same category

1.	Constriant: check value between 0 and 100
2.	State a check constraint that check relation between two columns
3.	Follow the contraint
4.	add constraint for a column: check (gender in ('MALE', 'FEMALE'))
5.	Constraint check with 'upper' function
6.	Constraint check with in function
7.	Violate constraints
8.	Check date type column for nullable and value range
9.	Check nullable and value range for one single column data
10.	Add two conditions for one column
11.	A check constraint can also be created or added as a table constraint.
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

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