Identical declarations using NUMBER subtypes

   
SQL>
SQL>
SQL> -- Identical declarations using NUMBER subtypes.
SQL> SET SERVEROUTPUT ON
SQL>
SQL> DECLARE
  2     -- all these declarations are identical.
  3     num_dec     DECIMAL(5,2);
  4     num_int     INTEGER(5,2);
  5     num_dbl     DOUBLE PRECISION(5);
  6     num_num     NUMERIC(5,2);
  7     num_real    REAL(5);
  8     num_sint    SMALLINT(5,2);
  9     num_flt     FLOAT(17);
 10
 11  BEGIN
 12
 13     num_dec := 123.456;
 14     num_int := 123.456;
 15     num_dbl := 123.456;
 16     num_num := 123.456;
 17     num_real := 123.456;
 18     num_sint := 123.456;
 19     num_flt := 123.456;
 20
 21     DBMS_OUTPUT.PUT_LINE(num_dec);
 22     DBMS_OUTPUT.PUT_LINE(num_int);
 23     DBMS_OUTPUT.PUT_LINE(num_dbl);
 24     DBMS_OUTPUT.PUT_LINE(num_num);
 25     DBMS_OUTPUT.PUT_LINE(num_real);
 26     DBMS_OUTPUT.PUT_LINE(num_sint);
 27     DBMS_OUTPUT.PUT_LINE(num_flt);
 28   END;
 29  /
123.46
123.46
120
123.46
120
123.46
123.456

PL/SQL procedure successfully completed.

SQL>
SQL>
SQL>

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Identical declarations using NUMBER subtypes : Number Type « Data Type « Oracle PL / SQL

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