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

1. Oracle PL / SQL
2. PL SQL
3. 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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