To_char function with alias column name

  
SQL>
SQL> CREATE TABLE product (
  2       product_name     VARCHAR2(25),
  3       product_price    NUMBER(4,2),
  4       quantity_on_hand NUMBER(5,0),
  5       last_stock_date  DATE);

Table created.

SQL>
SQL> INSERT INTO product VALUES ('Small Widget', 99, 1, '15-JAN-03');

1 row created.

SQL> INSERT INTO product VALUES ('Medium Widget', 75, 1000, '15-JAN-02');

1 row created.

SQL> INSERT INTO product VALUES ('Product Number', 50, 100, '15-JAN-03');

1 row created.

SQL> INSERT INTO product VALUES ('Round Church Station', 25, 10000, null);

1 row created.

SQL>
SQL>
SQL> select PRODUCT_NAME,
  2         to_char(PRODUCT_PRICE, '$9,999.00') "Price",
  3         to_char(QUANTITY_ON_HAND, '999,999') "On Hand",
  4         '  '|| to_char(LAST_STOCK_DATE, 'MON DD, YYYY') "Last Stocked"
  5  from   PRODUCT;

PRODUCT_NAME              Price      On Hand  Last Stocked
------------------------- ---------- -------- --------------
Small Widget                  $99.00        1   JAN 15, 2003
Medium Widget                 $75.00    1,000   JAN 15, 2002
Product Number                $50.00      100   JAN 15, 2003
Round Church Station          $25.00   10,000

SQL>
SQL> DROP TABLE product;

Table dropped.

SQL>

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4.	Using Aliases
5.	Using Aliases with Simple Subqueries
6.	Using Aliasing in Equi-Joins
7.	Use table alias to reference column names

To_char function with alias column name : alias column « Select Query « Oracle PL / SQL

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