Standard Internal Table

Standard table is an index table which has non-unique key. It can be accessed by index or key also. If we want to access by key then the key must be defined otherwise default key would be considered. The declaration is as follows:

DATA: it_mat TYPE STANDARD TABLE OF ty_mat WITH NON-UNIQUE KEY matnr.

OR

DATA: it_mat TYPE TABLE OF ty_mat WITH NON-UNIQUE KEY matnr.

                        OR

DATA: it_mat TYPE TABLE OF ty_mat.

If we don’t mention “STANDARD TABLE OF” clause then by default the system takes it as a standard internal table. We can enter data into a standard internal table by using the APPEND statement. APPEND always enters data at the last row of the table.

APPEND wa_mat TO it_mat.

We can sort data records in the standard table.

SORT itab BY item.

Here item is the field of the table. We can sort table by any of its fields or multiple fields. Here we have an example of Standard table.

REPORT  zabap_gui.

* Declaring the local structure of internal table
TYPES:
      BEGIN OF ty_tab,
        item     TYPE char10,
        quantity TYPE i,
        price    TYPE i,
      END OF ty_tab.

* Declaring the Standard internal table with non unique key
DATA:
      itab TYPE STANDARD TABLE OF ty_tab WITH NON-UNIQUE KEY item,
      wtab TYPE ty_tab.

* Entering records to each field
wtab-item = 'Rice'. wtab-quantity = 2. wtab-price = 80.

* Now one single row has been fulfilled with data
* Next appending one single row data into the table
APPEND wtab TO itab.

wtab-item = 'Suger'. wtab-quantity = 1. wtab-price = 90.
APPEND wtab TO itab.

wtab-item = 'Tea'. wtab-quantity = 1. wtab-price = 100.
APPEND wtab TO itab.

wtab-item = 'Rice'. wtab-quantity = 3. wtab-price = 150.
APPEND wtab TO itab.

wtab-item = 'Horlicks'. wtab-quantity = 1. wtab-price = 200.
APPEND wtab TO itab.

wtab-item = 'Suger'. wtab-quantity = 2. wtab-price = 70.
APPEND wtab TO itab.

WRITE:  /3 'Item',
        17 'Quantity',
        32 'Price'.
WRITE / '=========================================='.
SKIP. " Skipping one single line

LOOP AT itab INTO wtab.

  WRITE:  /3 wtab-item,
          12 wtab-quantity,
          25 wtab-price.
ENDLOOP.

SKIP.
WRITE '=========================================='.