ABAP Select data from SAP table /SAPAPO/ZEITREIHE4 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPAPO/ZEITREIHE4 table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to /SAPAPO/ZEITREIHE4. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the /SAPAPO/ZEITREIHE4 table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_/SAPAPO/ZEITREIHE4 TYPE STANDARD TABLE OF /SAPAPO/ZEITREIHE4,
      WA_/SAPAPO/ZEITREIHE4 TYPE /SAPAPO/ZEITREIHE4,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: </SAPAPO/ZEITREIHE4> TYPE /SAPAPO/ZEITREIHE4.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/SAPAPO/ZEITREIHE4.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPAPO/ZEITREIHE4
  INTO TABLE IT_/SAPAPO/ZEITREIHE4.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/ZEITREIHE4
*  INTO TABLE @DATA(IT_/SAPAPO/ZEITREIHE42).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_/SAPAPO/ZEITREIHE4 INDEX 1 INTO DATA(WA_/SAPAPO/ZEITREIHE42).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPAPO/ZEITREIHE4 ASSIGNING </SAPAPO/ZEITREIHE4>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/ZEITREIHE4>-CNT = 1.
</SAPAPO/ZEITREIHE4>-Z1 = 1.
</SAPAPO/ZEITREIHE4>-Z2 = 1.
</SAPAPO/ZEITREIHE4>-Z3 = 1.
</SAPAPO/ZEITREIHE4>-Z4 = 1.

ENDLOOP.

LOOP AT IT_/SAPAPO/ZEITREIHE4 INTO WA_/SAPAPO/ZEITREIHE4.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/ZEITREIHE4-Z5, sy-vline,
  WA_/SAPAPO/ZEITREIHE4-Z6, sy-vline,
  WA_/SAPAPO/ZEITREIHE4-Z7, sy-vline,
  WA_/SAPAPO/ZEITREIHE4-Z8, sy-vline,
  WA_/SAPAPO/ZEITREIHE4-Z9, sy-vline,
  WA_/SAPAPO/ZEITREIHE4-Z10, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/ZEITREIHE4 you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_/SAPAPO/ZEITREIHE4 TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_/SAPAPO/ZEITREIHE4 INTO WA_/SAPAPO/ZEITREIHE4.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_/SAPAPO/ZEITREIHE4_STR, 
CNT TYPE STRING,
Z1 TYPE STRING,
Z2 TYPE STRING,
Z3 TYPE STRING,
Z4 TYPE STRING,
Z5 TYPE STRING,
Z6 TYPE STRING,
Z7 TYPE STRING,
Z8 TYPE STRING,
Z9 TYPE STRING,
Z10 TYPE STRING,
Z11 TYPE STRING,
Z12 TYPE STRING,
Z13 TYPE STRING,
Z14 TYPE STRING,
Z15 TYPE STRING,
Z16 TYPE STRING,
Z17 TYPE STRING,
Z18 TYPE STRING,
Z19 TYPE STRING,
Z20 TYPE STRING,
Z21 TYPE STRING,
Z22 TYPE STRING,
Z23 TYPE STRING,
Z24 TYPE STRING,
Z25 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/ZEITREIHE4_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_/SAPAPO/ZEITREIHE4_STR-CNT sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z1 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z2 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z3 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z4 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z5 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z6 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z7 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z8 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z9 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z10 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z11 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z12 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z13 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z14 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z15 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z16 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z17 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z18 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z19 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z20 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z21 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z22 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z23 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z24 sy-vline 
WA_/SAPAPO/ZEITREIHE4_STR-Z25 sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.