ABAP Select data from SAP table GLE_MCA_STR_POSTLINE_AMOUNTS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP GLE_MCA_STR_POSTLINE_AMOUNTS 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 GLE_MCA_STR_POSTLINE_AMOUNTS. 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 GLE_MCA_STR_POSTLINE_AMOUNTS 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_GLE_MCA_STR_POSTLINE_AMOUNTS TYPE STANDARD TABLE OF GLE_MCA_STR_POSTLINE_AMOUNTS,
      WA_GLE_MCA_STR_POSTLINE_AMOUNTS TYPE GLE_MCA_STR_POSTLINE_AMOUNTS,
      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: <GLE_MCA_STR_POSTLINE_AMOUNTS> TYPE GLE_MCA_STR_POSTLINE_AMOUNTS.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM GLE_MCA_STR_POSTLINE_AMOUNTS
  INTO TABLE IT_GLE_MCA_STR_POSTLINE_AMOUNTS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GLE_MCA_STR_POSTLINE_AMOUNTS
*  INTO TABLE @DATA(IT_GLE_MCA_STR_POSTLINE_AMOUNTS2).
*--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_GLE_MCA_STR_POSTLINE_AMOUNTS INDEX 1 INTO DATA(WA_GLE_MCA_STR_POSTLINE_AMOUNTS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_GLE_MCA_STR_POSTLINE_AMOUNTS ASSIGNING <GLE_MCA_STR_POSTLINE_AMOUNTS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GLE_MCA_STR_POSTLINE_AMOUNTS>-TSL = 1.
<GLE_MCA_STR_POSTLINE_AMOUNTS>-WSL = 1.
<GLE_MCA_STR_POSTLINE_AMOUNTS>-HSL = 1.
<GLE_MCA_STR_POSTLINE_AMOUNTS>-KSL = 1.
<GLE_MCA_STR_POSTLINE_AMOUNTS>-OSL = 1.

ENDLOOP.

LOOP AT IT_GLE_MCA_STR_POSTLINE_AMOUNTS INTO WA_GLE_MCA_STR_POSTLINE_AMOUNTS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GLE_MCA_STR_POSTLINE_AMOUNTS-VSL, sy-vline,
  WA_GLE_MCA_STR_POSTLINE_AMOUNTS-BSL, sy-vline,
  WA_GLE_MCA_STR_POSTLINE_AMOUNTS-CSL, sy-vline,
  WA_GLE_MCA_STR_POSTLINE_AMOUNTS-DSL, sy-vline,
  WA_GLE_MCA_STR_POSTLINE_AMOUNTS-ESL, sy-vline,
  WA_GLE_MCA_STR_POSTLINE_AMOUNTS-FSL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GLE_MCA_STR_POSTLINE_AMOUNTS 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_GLE_MCA_STR_POSTLINE_AMOUNTS 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_GLE_MCA_STR_POSTLINE_AMOUNTS INTO WA_GLE_MCA_STR_POSTLINE_AMOUNTS.


*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_GLE_MCA_STR_POSTLINE_AMOUNTS_STR, 
TSL TYPE STRING,
WSL TYPE STRING,
HSL TYPE STRING,
KSL TYPE STRING,
OSL TYPE STRING,
VSL TYPE STRING,
BSL TYPE STRING,
CSL TYPE STRING,
DSL TYPE STRING,
ESL TYPE STRING,
FSL TYPE STRING,
GSL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GLE_MCA_STR_POSTLINE_AMOUNTS_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_GLE_MCA_STR_POSTLINE_AMOUNTS_STR-TSL sy-vline 
WA_GLE_MCA_STR_POSTLINE_AMOUNTS_STR-WSL sy-vline 
WA_GLE_MCA_STR_POSTLINE_AMOUNTS_STR-HSL sy-vline 
WA_GLE_MCA_STR_POSTLINE_AMOUNTS_STR-KSL sy-vline 
WA_GLE_MCA_STR_POSTLINE_AMOUNTS_STR-OSL sy-vline 
WA_GLE_MCA_STR_POSTLINE_AMOUNTS_STR-VSL sy-vline 
WA_GLE_MCA_STR_POSTLINE_AMOUNTS_STR-BSL sy-vline 
WA_GLE_MCA_STR_POSTLINE_AMOUNTS_STR-CSL sy-vline 
WA_GLE_MCA_STR_POSTLINE_AMOUNTS_STR-DSL sy-vline 
WA_GLE_MCA_STR_POSTLINE_AMOUNTS_STR-ESL sy-vline 
WA_GLE_MCA_STR_POSTLINE_AMOUNTS_STR-FSL sy-vline 
WA_GLE_MCA_STR_POSTLINE_AMOUNTS_STR-GSL sy-vline      INTO ld_text SEPARATED BY SPACE.

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