Use ABS for column data : ABS « Numerical Math Functions « Oracle PL/SQL Tutorial






SQL> -- create demo table
SQL> create table myTable(
  2    id           NUMBER(2),
  3    value        NUMBER(6,2)
  4  )
  5  /

Table created.

SQL>
SQL> -- prepare data
SQL> insert into myTable(ID,  value)values (1,9)
  2  /

1 row created.

SQL> insert into myTable(ID,  value)values (2,2.11)
  2  /

1 row created.

SQL> insert into myTable(ID,  value)values (3,3.44)
  2  /

1 row created.

SQL> insert into myTable(ID,  value)values (4,-4.21)
  2  /

1 row created.

SQL> insert into myTable(ID,  value)values (5,10)
  2  /

1 row created.

SQL> insert into myTable(ID,  value)values (6,3)
  2  /

1 row created.

SQL> insert into myTable(ID,  value)values (7,-5.88)
  2  /

1 row created.

SQL> insert into myTable(ID,  value)values (8,123.45)
  2  /

1 row created.

SQL> insert into myTable(ID,  value)values (9,98.23)
  2  /

1 row created.

SQL>
SQL> select * from myTable
  2  /

        ID      VALUE
---------- ----------
         1          9
         2       2.11
         3       3.44
         4      -4.21
         5         10
         6          3
         7      -5.88
         8     123.45
         9      98.23

9 rows selected.

SQL>
SQL>
SQL> SELECT id, value, ABS(value)FROM myTable
  2  /

        ID      VALUE ABS(VALUE)
---------- ---------- ----------
         1          9          9
         2       2.11       2.11
         3       3.44       3.44
         4      -4.21       4.21
         5         10         10
         6          3          3
         7      -5.88       5.88
         8     123.45     123.45
         9      98.23      98.23

9 rows selected.

SQL>
SQL>
SQL> -- clean the table
SQL> drop table myTable
  2  /

Table dropped.

SQL>
SQL>








14.2.ABS
14.2.1.ABS(x) gets the absolute value of x
14.2.2.ABS(10)
14.2.3.ABS(-10) (2)
14.2.4.Use ABS for column data
14.2.5.SQRT and ABS