ABAP Select data from SAP table /TDAG/CPS_REP_COMPLINF_ALV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /TDAG/CPS_REP_COMPLINF_ALV 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 /TDAG/CPS_REP_COMPLINF_ALV. 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 /TDAG/CPS_REP_COMPLINF_ALV 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_/TDAG/CPS_REP_COMPLINF_ALV TYPE STANDARD TABLE OF /TDAG/CPS_REP_COMPLINF_ALV,
      WA_/TDAG/CPS_REP_COMPLINF_ALV TYPE /TDAG/CPS_REP_COMPLINF_ALV,
      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: </TDAG/CPS_REP_COMPLINF_ALV> TYPE /TDAG/CPS_REP_COMPLINF_ALV.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /TDAG/CPS_REP_COMPLINF_ALV
*  INTO TABLE @DATA(IT_/TDAG/CPS_REP_COMPLINF_ALV2).
*--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_/TDAG/CPS_REP_COMPLINF_ALV INDEX 1 INTO DATA(WA_/TDAG/CPS_REP_COMPLINF_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</TDAG/CPS_REP_COMPLINF_ALV>-ORD = 1.
</TDAG/CPS_REP_COMPLINF_ALV>-LEVEL1 = 1.
</TDAG/CPS_REP_COMPLINF_ALV>-LEVEL2 = 1.
</TDAG/CPS_REP_COMPLINF_ALV>-LEVEL3 = 1.
</TDAG/CPS_REP_COMPLINF_ALV>-LEVEL4 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/TDAG/CPS_REP_COMPLINF_ALV-LEVEL5, sy-vline,
  WA_/TDAG/CPS_REP_COMPLINF_ALV-LEVEL6, sy-vline,
  WA_/TDAG/CPS_REP_COMPLINF_ALV-LEVEL7, sy-vline,
  WA_/TDAG/CPS_REP_COMPLINF_ALV-LEVEL8, sy-vline,
  WA_/TDAG/CPS_REP_COMPLINF_ALV-LEVEL9, sy-vline,
  WA_/TDAG/CPS_REP_COMPLINF_ALV-MATNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/TDAG/CPS_REP_COMPLINF_ALV 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_/TDAG/CPS_REP_COMPLINF_ALV 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_/TDAG/CPS_REP_COMPLINF_ALV INTO WA_/TDAG/CPS_REP_COMPLINF_ALV.


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

*Conversion exit SPEC1, internal->external for field SUBID
CALL FUNCTION 'CONVERSION_EXIT_SPEC1_OUTPUT'
  EXPORTING
    input =                      WA_/TDAG/CPS_REP_COMPLINF_ALV-SUBID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/TDAG/CPS_REP_COMPLINF_ALV-SUBID.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit SPEC1, internal->external for field PURE_SUBID
CALL FUNCTION 'CONVERSION_EXIT_SPEC1_OUTPUT'
  EXPORTING
    input =                      WA_/TDAG/CPS_REP_COMPLINF_ALV-PURE_SUBID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/TDAG/CPS_REP_COMPLINF_ALV-PURE_SUBID.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field MASS_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/TDAG/CPS_REP_COMPLINF_ALV-MASS_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/TDAG/CPS_REP_COMPLINF_ALV-MASS_UNIT.
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_/TDAG/CPS_REP_COMPLINF_ALV_STR, 
ORD TYPE STRING,
LEVEL1 TYPE STRING,
LEVEL2 TYPE STRING,
LEVEL3 TYPE STRING,
LEVEL4 TYPE STRING,
LEVEL5 TYPE STRING,
LEVEL6 TYPE STRING,
LEVEL7 TYPE STRING,
LEVEL8 TYPE STRING,
LEVEL9 TYPE STRING,
MATNR TYPE STRING,
SUBID TYPE STRING,
IDENT1 TYPE STRING,
IDENT2 TYPE STRING,
IDENT3 TYPE STRING,
IDENT4 TYPE STRING,
MPN TYPE STRING,
MFG TYPE STRING,
COMPLSTATUS TYPE STRING,
DECLARABLE TYPE STRING,
EXCEED TYPE STRING,
PURE_RECN TYPE STRING,
PURE_SUBID TYPE STRING,
NAM_PURE TYPE STRING,
NUM_CAS TYPE STRING,
PROP TYPE STRING,
PROP_UNIT TYPE STRING,
MASS TYPE STRING,
MASS_UNIT TYPE STRING,
PROH TYPE STRING,
DECLARE TYPE STRING,
THRE TYPE STRING,
EXEMPTION TYPE STRING,
MARKFLG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/TDAG/CPS_REP_COMPLINF_ALV_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_/TDAG/CPS_REP_COMPLINF_ALV_STR-ORD sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-LEVEL1 sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-LEVEL2 sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-LEVEL3 sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-LEVEL4 sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-LEVEL5 sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-LEVEL6 sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-LEVEL7 sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-LEVEL8 sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-LEVEL9 sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-MATNR sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-SUBID sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-IDENT1 sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-IDENT2 sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-IDENT3 sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-IDENT4 sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-MPN sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-MFG sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-COMPLSTATUS sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-DECLARABLE sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-EXCEED sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-PURE_RECN sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-PURE_SUBID sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-NAM_PURE sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-NUM_CAS sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-PROP sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-PROP_UNIT sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-MASS sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-MASS_UNIT sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-PROH sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-DECLARE sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-THRE sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-EXEMPTION sy-vline 
WA_/TDAG/CPS_REP_COMPLINF_ALV_STR-MARKFLG sy-vline      INTO ld_text SEPARATED BY SPACE.

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