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Oracle MID TYPE


Type declaration:

CREATE OR REPLACE TYPE mid_type UNDER base_type
(
 mid_attr DATE,
 CONSTRUCTOR FUNCTION mid_type
 (
 i_base_id INTEGER,
i_base_attr VARCHAR2,
 i_mid_attr DATE
 ) RETURN SELF AS RESULT,
 MEMBER FUNCTION get_mid_attr RETURN DATE,
 MEMBER PROCEDURE set_mid_attr(i_mid_attr DATE),
 OVERRIDING MEMBER FUNCTION to_string RETURN VARCHAR2
) INSTANTIABLE NOT FINAL

Type body:

CREATE OR REPLACE TYPE BODY mid_type AS
 CONSTRUCTOR FUNCTION mid_type
 (
 i_base_id INTEGER,
 i_base_attr VARCHAR2,
 i_mid_attr DATE
 ) RETURN SELF AS RESULT
 IS
 BEGIN
 self.base_id := i_base_id;
 self.base_attr := i_base_attr;
 self.mid_attr := i_mid_attr;
 RETURN;
 END mid_type;
 MEMBER FUNCTION get_mid_attr RETURN DATE IS
 BEGIN
 RETURN self.mid_attr;
 END get_mid_attr;
 MEMBER PROCEDURE set_mid_attr(i_mid_attr DATE) IS
 BEGIN
 self.mid_attr := i_mid_attr;
 END set_mid_attr;
 OVERRIDING MEMBER FUNCTION to_string RETURN VARCHAR2
 IS
 BEGIN
 RETURN (SELF AS base_type).to_string || '; MID_ATTR [' || self.mid_attr || ']';
 END to_string;
END;



Conclusion

In this page (written and validated by ) you learned about Oracle MID TYPE . What's Next? If you are interested in completing Oracle tutorial, your next topic will be learning about: Oracle LEAF TYPE.



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