Dynamic read table command in ABAP

REPORT ZDYREADTABLE.

* Parameters for reading a single line, can be modified by the end user

PARAMETERS: KEY1(10)         DEFAULT 'NAME',

            VALUE1(25),

            KEY2   LIKE KEY1 DEFAULT 'ID',

            VALUE2 LIKE VALUE1.

* Declarations for later use

TABLES CUSTOMERS.

DATA ALL_CUSTOMERS LIKE CUSTOMERS OCCURS 100

                   WITH HEADER LINE.

* Filling the internal table

SELECT * FROM CUSTOMERS INTO TABLE ALL_CUSTOMERS.

* Dynamic read table command

READ TABLE ALL_CUSTOMERS

   WITH KEY (KEY1) = VALUE1

            (KEY2) = VALUE2.

* Displaying the result

IF SY-SUBRC EQ 0.

  WRITE: / ALL_CUSTOMERS-ID,

           ALL_CUSTOMERS-NAME,

           ALL_CUSTOMERS-CITY,

           ALL_CUSTOMERS-TELEPHONE.

ELSE.

  WRITE 'Entry not found'.

ENDIF.