Create a constrained subtype DB_STRING : subtype « PL SQL « Oracle PL / SQL

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Oracle PL / SQL » PL SQL » subtype

Create a constrained subtype DB_STRING


    

SQL>

SQL> DECLARE

  2    SUBTYPE db_string IS VARCHAR2(4000 BYTE);

  3    c VARCHAR2(1 CHAR) := 'A';

  4    d DB_STRING;

  5  BEGIN

  6    d := c;

  7  END;

  8  /



PL/SQL procedure successfully completed.



SQL>

SQL>

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