ABAP Select data from SAP table PIN_MLCU_FIELD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIN_MLCU_FIELD
*  INTO TABLE @DATA(IT_PIN_MLCU_FIELD2).
*--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_PIN_MLCU_FIELD INDEX 1 INTO DATA(WA_PIN_MLCU_FIELD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIN_MLCU_FIELD>-CDT01 = 1.
<PIN_MLCU_FIELD>-CDT02 = 1.
<PIN_MLCU_FIELD>-CDT03 = 1.
<PIN_MLCU_FIELD>-CDT04 = 1.
<PIN_MLCU_FIELD>-CDT05 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIN_MLCU_FIELD-CDT06, sy-vline,
  WA_PIN_MLCU_FIELD-CDT07, sy-vline,
  WA_PIN_MLCU_FIELD-CDT08, sy-vline,
  WA_PIN_MLCU_FIELD-CDT09, sy-vline,
  WA_PIN_MLCU_FIELD-CDT10, sy-vline,
  WA_PIN_MLCU_FIELD-C01T1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIN_MLCU_FIELD 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_PIN_MLCU_FIELD 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_PIN_MLCU_FIELD INTO WA_PIN_MLCU_FIELD.


*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_PIN_MLCU_FIELD_STR, 
CDT01 TYPE STRING,
CDT02 TYPE STRING,
CDT03 TYPE STRING,
CDT04 TYPE STRING,
CDT05 TYPE STRING,
CDT06 TYPE STRING,
CDT07 TYPE STRING,
CDT08 TYPE STRING,
CDT09 TYPE STRING,
CDT10 TYPE STRING,
C01T1 TYPE STRING,
C01T2 TYPE STRING,
C01T3 TYPE STRING,
C01T4 TYPE STRING,
C01T5 TYPE STRING,
C03T1 TYPE STRING,
C03T2 TYPE STRING,
C03T3 TYPE STRING,
C03T4 TYPE STRING,
C03T5 TYPE STRING,
C10T1 TYPE STRING,
C10T2 TYPE STRING,
C10T3 TYPE STRING,
C10T4 TYPE STRING,
C10T5 TYPE STRING,
C20T1 TYPE STRING,
C20T2 TYPE STRING,
C20T3 TYPE STRING,
C20T4 TYPE STRING,
C20T5 TYPE STRING,
C40T1 TYPE STRING,
C40T2 TYPE STRING,
C40T3 TYPE STRING,
C40T4 TYPE STRING,
C40T5 TYPE STRING,
N02N1 TYPE STRING,
N02N2 TYPE STRING,
N02N3 TYPE STRING,
N02N4 TYPE STRING,
N02N5 TYPE STRING,
N05N1 TYPE STRING,
N05N2 TYPE STRING,
N05N3 TYPE STRING,
N05N4 TYPE STRING,
N05N5 TYPE STRING,
N10N1 TYPE STRING,
N10N2 TYPE STRING,
N10N3 TYPE STRING,
N10N4 TYPE STRING,
N10N5 TYPE STRING,
N20N1 TYPE STRING,
N20N2 TYPE STRING,
N20N3 TYPE STRING,
N20N4 TYPE STRING,
N20N5 TYPE STRING,
N16N1 TYPE STRING,
N16N2 TYPE STRING,
N16N3 TYPE STRING,
N16N4 TYPE STRING,
N16N5 TYPE STRING,
CKB01 TYPE STRING,
CKB02 TYPE STRING,
CKB03 TYPE STRING,
CKB04 TYPE STRING,
CKB05 TYPE STRING,
CKB06 TYPE STRING,
CKB07 TYPE STRING,
CKB08 TYPE STRING,
CKB09 TYPE STRING,
CKB10 TYPE STRING,
AMT01 TYPE STRING,
AMT02 TYPE STRING,
AMT03 TYPE STRING,
AMT04 TYPE STRING,
AMT05 TYPE STRING,
AMT06 TYPE STRING,
AMT07 TYPE STRING,
AMT08 TYPE STRING,
AMT09 TYPE STRING,
AMT10 TYPE STRING,
DEC01 TYPE STRING,
DEC02 TYPE STRING,
DEC03 TYPE STRING,
DEC04 TYPE STRING,
DEC05 TYPE STRING,
C04T1 TYPE STRING,
C04T2 TYPE STRING,
C04T3 TYPE STRING,
C04T4 TYPE STRING,
C04T5 TYPE STRING,
C80T1 TYPE STRING,
C80T2 TYPE STRING,
C80T3 TYPE STRING,
C80T4 TYPE STRING,
C80T5 TYPE STRING,
C200T1 TYPE STRING,
C200T2 TYPE STRING,
C200T3 TYPE STRING,
C500T1 TYPE STRING,
C500T2 TYPE STRING,
C1000T1 TYPE STRING,
WAERM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIN_MLCU_FIELD_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_PIN_MLCU_FIELD_STR-CDT01 sy-vline 
WA_PIN_MLCU_FIELD_STR-CDT02 sy-vline 
WA_PIN_MLCU_FIELD_STR-CDT03 sy-vline 
WA_PIN_MLCU_FIELD_STR-CDT04 sy-vline 
WA_PIN_MLCU_FIELD_STR-CDT05 sy-vline 
WA_PIN_MLCU_FIELD_STR-CDT06 sy-vline 
WA_PIN_MLCU_FIELD_STR-CDT07 sy-vline 
WA_PIN_MLCU_FIELD_STR-CDT08 sy-vline 
WA_PIN_MLCU_FIELD_STR-CDT09 sy-vline 
WA_PIN_MLCU_FIELD_STR-CDT10 sy-vline 
WA_PIN_MLCU_FIELD_STR-C01T1 sy-vline 
WA_PIN_MLCU_FIELD_STR-C01T2 sy-vline 
WA_PIN_MLCU_FIELD_STR-C01T3 sy-vline 
WA_PIN_MLCU_FIELD_STR-C01T4 sy-vline 
WA_PIN_MLCU_FIELD_STR-C01T5 sy-vline 
WA_PIN_MLCU_FIELD_STR-C03T1 sy-vline 
WA_PIN_MLCU_FIELD_STR-C03T2 sy-vline 
WA_PIN_MLCU_FIELD_STR-C03T3 sy-vline 
WA_PIN_MLCU_FIELD_STR-C03T4 sy-vline 
WA_PIN_MLCU_FIELD_STR-C03T5 sy-vline 
WA_PIN_MLCU_FIELD_STR-C10T1 sy-vline 
WA_PIN_MLCU_FIELD_STR-C10T2 sy-vline 
WA_PIN_MLCU_FIELD_STR-C10T3 sy-vline 
WA_PIN_MLCU_FIELD_STR-C10T4 sy-vline 
WA_PIN_MLCU_FIELD_STR-C10T5 sy-vline 
WA_PIN_MLCU_FIELD_STR-C20T1 sy-vline 
WA_PIN_MLCU_FIELD_STR-C20T2 sy-vline 
WA_PIN_MLCU_FIELD_STR-C20T3 sy-vline 
WA_PIN_MLCU_FIELD_STR-C20T4 sy-vline 
WA_PIN_MLCU_FIELD_STR-C20T5 sy-vline 
WA_PIN_MLCU_FIELD_STR-C40T1 sy-vline 
WA_PIN_MLCU_FIELD_STR-C40T2 sy-vline 
WA_PIN_MLCU_FIELD_STR-C40T3 sy-vline 
WA_PIN_MLCU_FIELD_STR-C40T4 sy-vline 
WA_PIN_MLCU_FIELD_STR-C40T5 sy-vline 
WA_PIN_MLCU_FIELD_STR-N02N1 sy-vline 
WA_PIN_MLCU_FIELD_STR-N02N2 sy-vline 
WA_PIN_MLCU_FIELD_STR-N02N3 sy-vline 
WA_PIN_MLCU_FIELD_STR-N02N4 sy-vline 
WA_PIN_MLCU_FIELD_STR-N02N5 sy-vline 
WA_PIN_MLCU_FIELD_STR-N05N1 sy-vline 
WA_PIN_MLCU_FIELD_STR-N05N2 sy-vline 
WA_PIN_MLCU_FIELD_STR-N05N3 sy-vline 
WA_PIN_MLCU_FIELD_STR-N05N4 sy-vline 
WA_PIN_MLCU_FIELD_STR-N05N5 sy-vline 
WA_PIN_MLCU_FIELD_STR-N10N1 sy-vline 
WA_PIN_MLCU_FIELD_STR-N10N2 sy-vline 
WA_PIN_MLCU_FIELD_STR-N10N3 sy-vline 
WA_PIN_MLCU_FIELD_STR-N10N4 sy-vline 
WA_PIN_MLCU_FIELD_STR-N10N5 sy-vline 
WA_PIN_MLCU_FIELD_STR-N20N1 sy-vline 
WA_PIN_MLCU_FIELD_STR-N20N2 sy-vline 
WA_PIN_MLCU_FIELD_STR-N20N3 sy-vline 
WA_PIN_MLCU_FIELD_STR-N20N4 sy-vline 
WA_PIN_MLCU_FIELD_STR-N20N5 sy-vline 
WA_PIN_MLCU_FIELD_STR-N16N1 sy-vline 
WA_PIN_MLCU_FIELD_STR-N16N2 sy-vline 
WA_PIN_MLCU_FIELD_STR-N16N3 sy-vline 
WA_PIN_MLCU_FIELD_STR-N16N4 sy-vline 
WA_PIN_MLCU_FIELD_STR-N16N5 sy-vline 
WA_PIN_MLCU_FIELD_STR-CKB01 sy-vline 
WA_PIN_MLCU_FIELD_STR-CKB02 sy-vline 
WA_PIN_MLCU_FIELD_STR-CKB03 sy-vline 
WA_PIN_MLCU_FIELD_STR-CKB04 sy-vline 
WA_PIN_MLCU_FIELD_STR-CKB05 sy-vline 
WA_PIN_MLCU_FIELD_STR-CKB06 sy-vline 
WA_PIN_MLCU_FIELD_STR-CKB07 sy-vline 
WA_PIN_MLCU_FIELD_STR-CKB08 sy-vline 
WA_PIN_MLCU_FIELD_STR-CKB09 sy-vline 
WA_PIN_MLCU_FIELD_STR-CKB10 sy-vline 
WA_PIN_MLCU_FIELD_STR-AMT01 sy-vline 
WA_PIN_MLCU_FIELD_STR-AMT02 sy-vline 
WA_PIN_MLCU_FIELD_STR-AMT03 sy-vline 
WA_PIN_MLCU_FIELD_STR-AMT04 sy-vline 
WA_PIN_MLCU_FIELD_STR-AMT05 sy-vline 
WA_PIN_MLCU_FIELD_STR-AMT06 sy-vline 
WA_PIN_MLCU_FIELD_STR-AMT07 sy-vline 
WA_PIN_MLCU_FIELD_STR-AMT08 sy-vline 
WA_PIN_MLCU_FIELD_STR-AMT09 sy-vline 
WA_PIN_MLCU_FIELD_STR-AMT10 sy-vline 
WA_PIN_MLCU_FIELD_STR-DEC01 sy-vline 
WA_PIN_MLCU_FIELD_STR-DEC02 sy-vline 
WA_PIN_MLCU_FIELD_STR-DEC03 sy-vline 
WA_PIN_MLCU_FIELD_STR-DEC04 sy-vline 
WA_PIN_MLCU_FIELD_STR-DEC05 sy-vline 
WA_PIN_MLCU_FIELD_STR-C04T1 sy-vline 
WA_PIN_MLCU_FIELD_STR-C04T2 sy-vline 
WA_PIN_MLCU_FIELD_STR-C04T3 sy-vline 
WA_PIN_MLCU_FIELD_STR-C04T4 sy-vline 
WA_PIN_MLCU_FIELD_STR-C04T5 sy-vline 
WA_PIN_MLCU_FIELD_STR-C80T1 sy-vline 
WA_PIN_MLCU_FIELD_STR-C80T2 sy-vline 
WA_PIN_MLCU_FIELD_STR-C80T3 sy-vline 
WA_PIN_MLCU_FIELD_STR-C80T4 sy-vline 
WA_PIN_MLCU_FIELD_STR-C80T5 sy-vline 
WA_PIN_MLCU_FIELD_STR-C200T1 sy-vline 
WA_PIN_MLCU_FIELD_STR-C200T2 sy-vline 
WA_PIN_MLCU_FIELD_STR-C200T3 sy-vline 
WA_PIN_MLCU_FIELD_STR-C500T1 sy-vline 
WA_PIN_MLCU_FIELD_STR-C500T2 sy-vline 
WA_PIN_MLCU_FIELD_STR-C1000T1 sy-vline 
WA_PIN_MLCU_FIELD_STR-WAERM sy-vline      INTO ld_text SEPARATED BY SPACE.

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