ABAP Select data from SAP table CRM_ISU_PAYSCHEMELINES_ATTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRM_ISU_PAYSCHEMELINES_ATTR
*  INTO TABLE @DATA(IT_CRM_ISU_PAYSCHEMELINES_ATTR2).
*--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_CRM_ISU_PAYSCHEMELINES_ATTR INDEX 1 INTO DATA(WA_CRM_ISU_PAYSCHEMELINES_ATTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRM_ISU_PAYSCHEMELINES_ATTR>-OPBEL = 1.
<CRM_ISU_PAYSCHEMELINES_ATTR>-COUNTER = 1.
<CRM_ISU_PAYSCHEMELINES_ATTR>-BEGDAT = 1.
<CRM_ISU_PAYSCHEMELINES_ATTR>-ENDDAT = 1.
<CRM_ISU_PAYSCHEMELINES_ATTR>-VKONTO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRM_ISU_PAYSCHEMELINES_ATTR-WAERS, sy-vline,
  WA_CRM_ISU_PAYSCHEMELINES_ATTR-BETRW, sy-vline,
  WA_CRM_ISU_PAYSCHEMELINES_ATTR-BETRWBILL, sy-vline,
  WA_CRM_ISU_PAYSCHEMELINES_ATTR-BETRWBILLTOT, sy-vline,
  WA_CRM_ISU_PAYSCHEMELINES_ATTR-BETRWBILLACT, sy-vline,
  WA_CRM_ISU_PAYSCHEMELINES_ATTR-BETRWBILLPROP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRM_ISU_PAYSCHEMELINES_ATTR 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_CRM_ISU_PAYSCHEMELINES_ATTR 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_CRM_ISU_PAYSCHEMELINES_ATTR INTO WA_CRM_ISU_PAYSCHEMELINES_ATTR.


*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 OPBEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRM_ISU_PAYSCHEMELINES_ATTR-OPBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRM_ISU_PAYSCHEMELINES_ATTR-OPBEL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field LASTBELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRM_ISU_PAYSCHEMELINES_ATTR-LASTBELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRM_ISU_PAYSCHEMELINES_ATTR-LASTBELNR.
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_CRM_ISU_PAYSCHEMELINES_ATTR_STR, 
OPBEL TYPE STRING,
COUNTER TYPE STRING,
BEGDAT TYPE STRING,
ENDDAT TYPE STRING,
VKONTO TYPE STRING,
WAERS TYPE STRING,
BETRW TYPE STRING,
BETRWBILL TYPE STRING,
BETRWBILLTOT TYPE STRING,
BETRWBILLACT TYPE STRING,
BETRWBILLPROP TYPE STRING,
BETRWEXT TYPE STRING,
PAYFREQ TYPE STRING,
PAYFREQ_TXT TYPE STRING,
PAYDATE TYPE STRING,
LASTDUEDATE TYPE STRING,
LASTBELNR TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
CHGRSN TYPE STRING,
CHGSTATUS TYPE STRING,
NEXTCHGDATE TYPE STRING,
PSTYPE TYPE STRING,
PSTYPE_TXT TYPE STRING,
INSTALLMENTS TYPE STRING,
TOTINSTAMOUNT TYPE STRING,
BETRWEXTRATO TYPE STRING,
PAYDATEALT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRM_ISU_PAYSCHEMELINES_ATTR_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_CRM_ISU_PAYSCHEMELINES_ATTR_STR-OPBEL sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-COUNTER sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-BEGDAT sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-ENDDAT sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-VKONTO sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-WAERS sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-BETRW sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-BETRWBILL sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-BETRWBILLTOT sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-BETRWBILLACT sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-BETRWBILLPROP sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-BETRWEXT sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-PAYFREQ sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-PAYFREQ_TXT sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-PAYDATE sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-LASTDUEDATE sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-LASTBELNR sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-ERDAT sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-ERNAM sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-AEDAT sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-AENAM sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-CHGRSN sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-CHGSTATUS sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-NEXTCHGDATE sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-PSTYPE sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-PSTYPE_TXT sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-INSTALLMENTS sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-TOTINSTAMOUNT sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-BETRWEXTRATO sy-vline 
WA_CRM_ISU_PAYSCHEMELINES_ATTR_STR-PAYDATEALT sy-vline      INTO ld_text SEPARATED BY SPACE.

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