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

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPAPO/CIF_PU_DOC_EX_X 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/CIF_PU_DOC_EX_X. 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/CIF_PU_DOC_EX_X 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/CIF_PU_DOC_EX_X TYPE STANDARD TABLE OF /SAPAPO/CIF_PU_DOC_EX_X,
      WA_/SAPAPO/CIF_PU_DOC_EX_X TYPE /SAPAPO/CIF_PU_DOC_EX_X,
      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/CIF_PU_DOC_EX_X> TYPE /SAPAPO/CIF_PU_DOC_EX_X.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/CIF_PU_DOC_EX_X
*  INTO TABLE @DATA(IT_/SAPAPO/CIF_PU_DOC_EX_X2).
*--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/CIF_PU_DOC_EX_X INDEX 1 INTO DATA(WA_/SAPAPO/CIF_PU_DOC_EX_X2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/CIF_PU_DOC_EX_X>-ORDID = 1.
</SAPAPO/CIF_PU_DOC_EX_X>-SCHEDID = 1.
</SAPAPO/CIF_PU_DOC_EX_X>-MATERIAL = 1.
</SAPAPO/CIF_PU_DOC_EX_X>-PLANT = 1.
</SAPAPO/CIF_PU_DOC_EX_X>-STORAGELOC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/CIF_PU_DOC_EX_X-SP_STK_IND, sy-vline,
  WA_/SAPAPO/CIF_PU_DOC_EX_X-SPEC_STOCK, sy-vline,
  WA_/SAPAPO/CIF_PU_DOC_EX_X-VENDOR, sy-vline,
  WA_/SAPAPO/CIF_PU_DOC_EX_X-GR_PROC_TI, sy-vline,
  WA_/SAPAPO/CIF_PU_DOC_EX_X-UNITOFMEAS, sy-vline,
  WA_/SAPAPO/CIF_PU_DOC_EX_X-UOM_ISO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/CIF_PU_DOC_EX_X 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/CIF_PU_DOC_EX_X 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/CIF_PU_DOC_EX_X INTO WA_/SAPAPO/CIF_PU_DOC_EX_X.


*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/CIF_PU_DOC_EX_X_STR, 
ORDID TYPE STRING,
SCHEDID TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
STORAGELOC TYPE STRING,
SP_STK_IND TYPE STRING,
SPEC_STOCK TYPE STRING,
VENDOR TYPE STRING,
GR_PROC_TI TYPE STRING,
UNITOFMEAS TYPE STRING,
UOM_ISO TYPE STRING,
BATCH TYPE STRING,
QUANTITY TYPE STRING,
REQ_TSTAMP TYPE STRING,
FIXED TYPE STRING,
ATPCAT TYPE STRING,
REL_TSTAMP TYPE STRING,
LOC_FROM TYPE STRING,
WHAT_ACT TYPE STRING,
PURCH_ORG TYPE STRING,
CON_NUMBER TYPE STRING,
CON_ITEM TYPE STRING,
DOC_SRC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/CIF_PU_DOC_EX_X_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/CIF_PU_DOC_EX_X_STR-ORDID sy-vline 
WA_/SAPAPO/CIF_PU_DOC_EX_X_STR-SCHEDID sy-vline 
WA_/SAPAPO/CIF_PU_DOC_EX_X_STR-MATERIAL sy-vline 
WA_/SAPAPO/CIF_PU_DOC_EX_X_STR-PLANT sy-vline 
WA_/SAPAPO/CIF_PU_DOC_EX_X_STR-STORAGELOC sy-vline 
WA_/SAPAPO/CIF_PU_DOC_EX_X_STR-SP_STK_IND sy-vline 
WA_/SAPAPO/CIF_PU_DOC_EX_X_STR-SPEC_STOCK sy-vline 
WA_/SAPAPO/CIF_PU_DOC_EX_X_STR-VENDOR sy-vline 
WA_/SAPAPO/CIF_PU_DOC_EX_X_STR-GR_PROC_TI sy-vline 
WA_/SAPAPO/CIF_PU_DOC_EX_X_STR-UNITOFMEAS sy-vline 
WA_/SAPAPO/CIF_PU_DOC_EX_X_STR-UOM_ISO sy-vline 
WA_/SAPAPO/CIF_PU_DOC_EX_X_STR-BATCH sy-vline 
WA_/SAPAPO/CIF_PU_DOC_EX_X_STR-QUANTITY sy-vline 
WA_/SAPAPO/CIF_PU_DOC_EX_X_STR-REQ_TSTAMP sy-vline 
WA_/SAPAPO/CIF_PU_DOC_EX_X_STR-FIXED sy-vline 
WA_/SAPAPO/CIF_PU_DOC_EX_X_STR-ATPCAT sy-vline 
WA_/SAPAPO/CIF_PU_DOC_EX_X_STR-REL_TSTAMP sy-vline 
WA_/SAPAPO/CIF_PU_DOC_EX_X_STR-LOC_FROM sy-vline 
WA_/SAPAPO/CIF_PU_DOC_EX_X_STR-WHAT_ACT sy-vline 
WA_/SAPAPO/CIF_PU_DOC_EX_X_STR-PURCH_ORG sy-vline 
WA_/SAPAPO/CIF_PU_DOC_EX_X_STR-CON_NUMBER sy-vline 
WA_/SAPAPO/CIF_PU_DOC_EX_X_STR-CON_ITEM sy-vline 
WA_/SAPAPO/CIF_PU_DOC_EX_X_STR-DOC_SRC sy-vline      INTO ld_text SEPARATED BY SPACE.

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