Check nullable and value range for one single column data : Constraint Check « Constraints « Oracle PL / SQL






  1. Oracle PL / SQL
  2. Constraints
  3. Constraint Check

Check nullable and value range for one single column data

   
SQL>
SQL> CREATE TABLE product (
  2       product_name  VARCHAR2(25),
  3       product_price NUMBER(4,2)
  4       );

Table created.

SQL>
SQL> ALTER TABLE product ADD (
  2       CONSTRAINT valid_price CHECK(
  3            product_price IS NOT NULL
  4            AND
  5            product_price BETWEEN 0 AND 10000
  6            )
  7       );

Table altered.

SQL>
SQL> drop table product;

Table dropped.








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