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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/BWEX_SDLS_SCHEDLIN
*  INTO TABLE @DATA(IT_/SAPAPO/BWEX_SDLS_SCHEDLIN2).
*--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/BWEX_SDLS_SCHEDLIN INDEX 1 INTO DATA(WA_/SAPAPO/BWEX_SDLS_SCHEDLIN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/BWEX_SDLS_SCHEDLIN>-RECORDMODE = 1.
</SAPAPO/BWEX_SDLS_SCHEDLIN>-VBELN = 1.
</SAPAPO/BWEX_SDLS_SCHEDLIN>-VBELP = 1.
</SAPAPO/BWEX_SDLS_SCHEDLIN>-LOGSY = 1.
</SAPAPO/BWEX_SDLS_SCHEDLIN>-REQUIREMENT_DATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/BWEX_SDLS_SCHEDLIN-REQUIREMENT_TIME, sy-vline,
  WA_/SAPAPO/BWEX_SDLS_SCHEDLIN-LOADING_DATE, sy-vline,
  WA_/SAPAPO/BWEX_SDLS_SCHEDLIN-LOADING_TIME, sy-vline,
  WA_/SAPAPO/BWEX_SDLS_SCHEDLIN-STAGGING_DATE, sy-vline,
  WA_/SAPAPO/BWEX_SDLS_SCHEDLIN-STAGGING_TIME, sy-vline,
  WA_/SAPAPO/BWEX_SDLS_SCHEDLIN-DELIVERY_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/BWEX_SDLS_SCHEDLIN 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/BWEX_SDLS_SCHEDLIN 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/BWEX_SDLS_SCHEDLIN INTO WA_/SAPAPO/BWEX_SDLS_SCHEDLIN.


*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.

*Conversion exit ALPHA, internal->external for field LOGSY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/BWEX_SDLS_SCHEDLIN-LOGSY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/BWEX_SDLS_SCHEDLIN-LOGSY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/BWEX_SDLS_SCHEDLIN-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/BWEX_SDLS_SCHEDLIN-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/BWEX_SDLS_SCHEDLIN-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/BWEX_SDLS_SCHEDLIN-MATNR.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR, 
RECORDMODE TYPE STRING,
VBELN TYPE STRING,
VBELP TYPE STRING,
LOGSY TYPE STRING,
REQUIREMENT_DATE TYPE STRING,
REQUIREMENT_TIME TYPE STRING,
LOADING_DATE TYPE STRING,
LOADING_TIME TYPE STRING,
STAGGING_DATE TYPE STRING,
STAGGING_TIME TYPE STRING,
DELIVERY_DATE TYPE STRING,
DELIVERY_TIME TYPE STRING,
GR_START_DATE TYPE STRING,
GR_START_TIME TYPE STRING,
AVAIL_DATE TYPE STRING,
AVAIL_TIME TYPE STRING,
OPEN_QUANTITY TYPE STRING,
ORIG_QUANTITY TYPE STRING,
LFNKD TYPE STRING,
ABART TYPE STRING,
START_DATE TYPE STRING,
MEINS TYPE STRING,
TERSL TYPE STRING,
MATNR TYPE STRING,
LOCFR TYPE STRING,
LOCTO TYPE STRING,
VKORG TYPE STRING,
RELEASE_DATE TYPE STRING,
RELEASE_TIME TYPE STRING,
PLANNER_PPS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_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/BWEX_SDLS_SCHEDLIN_STR-RECORDMODE sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-VBELN sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-VBELP sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-LOGSY sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-REQUIREMENT_DATE sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-REQUIREMENT_TIME sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-LOADING_DATE sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-LOADING_TIME sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-STAGGING_DATE sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-STAGGING_TIME sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-DELIVERY_DATE sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-DELIVERY_TIME sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-GR_START_DATE sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-GR_START_TIME sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-AVAIL_DATE sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-AVAIL_TIME sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-OPEN_QUANTITY sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-ORIG_QUANTITY sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-LFNKD sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-ABART sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-START_DATE sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-MEINS sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-TERSL sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-MATNR sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-LOCFR sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-LOCTO sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-VKORG sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-RELEASE_DATE sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-RELEASE_TIME sy-vline 
WA_/SAPAPO/BWEX_SDLS_SCHEDLIN_STR-PLANNER_PPS sy-vline      INTO ld_text SEPARATED BY SPACE.

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