ABAP Select data from SAP table ESD_CONSUMER_GROUPS_S into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESD_CONSUMER_GROUPS_S
*  INTO TABLE @DATA(IT_ESD_CONSUMER_GROUPS_S2).
*--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_ESD_CONSUMER_GROUPS_S INDEX 1 INTO DATA(WA_ESD_CONSUMER_GROUPS_S2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESD_CONSUMER_GROUPS_S>-REGISTRY_DATA = 1.
<ESD_CONSUMER_GROUPS_S>-REG_LISTBOX_VALS = 1.
<ESD_CONSUMER_GROUPS_S>-REGISTRY = 1.
<ESD_CONSUMER_GROUPS_S>-VERSION = 1.
<ESD_CONSUMER_GROUPS_S>-PROXY_CLASS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESD_CONSUMER_GROUPS_S-LOGICAL_PORT, sy-vline,
  WA_ESD_CONSUMER_GROUPS_S-SYTEM_ID, sy-vline,
  WA_ESD_CONSUMER_GROUPS_S-DB_HOST_NAME, sy-vline,
  WA_ESD_CONSUMER_GROUPS_S-SLD_ID, sy-vline,
  WA_ESD_CONSUMER_GROUPS_S-CLIENT_NUMBER, sy-vline,
  WA_ESD_CONSUMER_GROUPS_S-PRIMARY_REG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESD_CONSUMER_GROUPS_S 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_ESD_CONSUMER_GROUPS_S 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_ESD_CONSUMER_GROUPS_S INTO WA_ESD_CONSUMER_GROUPS_S.


*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_ESD_CONSUMER_GROUPS_S_STR, 
REGISTRY_DATA TYPE STRING,
REG_LISTBOX_VALS TYPE STRING,
REGISTRY TYPE STRING,
VERSION TYPE STRING,
PROXY_CLASS TYPE STRING,
LOGICAL_PORT TYPE STRING,
SYTEM_ID TYPE STRING,
DB_HOST_NAME TYPE STRING,
SLD_ID TYPE STRING,
CLIENT_NUMBER TYPE STRING,
PRIMARY_REG TYPE STRING,
ALT_HOST_NAME TYPE STRING,
ALT_PORT TYPE STRING,
ALT_PORT_HTTPS TYPE STRING,
REVERSE_PROXY TYPE STRING,
PUB_SCHEDULE TYPE STRING,
PUB_START_DATE TYPE STRING,
PUB_START_TIME TYPE STRING,
PUB_FREQUENCY TYPE STRING,
PUB_JOB_ID TYPE STRING,
APPL_KEY TYPE STRING,
CHANGE_KEY TYPE STRING,
CONNECTION_TYPE TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_ON TYPE STRING,
CREATED_AT TYPE STRING,
CREATED_TC TYPE STRING,
CREATED_CP TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGED_ON TYPE STRING,
CHANGED_AT TYPE STRING,
CHANGED_TC TYPE STRING,
CHANGED_CP TYPE STRING,
PRIORITY TYPE STRING,
AVAIL_REGISTRIES TYPE STRING,
CO_R3_NAME TYPE STRING,
CO_PORTYPE_NAME TYPE STRING,
CO_PORTYPE_NSPCE TYPE STRING,
PR_PORTYPE_NAME TYPE STRING,
PR_PORTYPE_NSPCE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESD_CONSUMER_GROUPS_S_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_ESD_CONSUMER_GROUPS_S_STR-REGISTRY_DATA sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-REG_LISTBOX_VALS sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-REGISTRY sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-VERSION sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-PROXY_CLASS sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-LOGICAL_PORT sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-SYTEM_ID sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-DB_HOST_NAME sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-SLD_ID sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-CLIENT_NUMBER sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-PRIMARY_REG sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-ALT_HOST_NAME sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-ALT_PORT sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-ALT_PORT_HTTPS sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-REVERSE_PROXY sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-PUB_SCHEDULE sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-PUB_START_DATE sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-PUB_START_TIME sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-PUB_FREQUENCY sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-PUB_JOB_ID sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-APPL_KEY sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-CHANGE_KEY sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-CONNECTION_TYPE sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-CREATED_BY sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-CREATED_ON sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-CREATED_AT sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-CREATED_TC sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-CREATED_CP sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-CHANGED_BY sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-CHANGED_ON sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-CHANGED_AT sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-CHANGED_TC sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-CHANGED_CP sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-PRIORITY sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-AVAIL_REGISTRIES sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-CO_R3_NAME sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-CO_PORTYPE_NAME sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-CO_PORTYPE_NSPCE sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-PR_PORTYPE_NAME sy-vline 
WA_ESD_CONSUMER_GROUPS_S_STR-PR_PORTYPE_NSPCE sy-vline      INTO ld_text SEPARATED BY SPACE.

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