ABAP Select data from SAP table EMMA_INT_ALV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EMMA_INT_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 EMMA_INT_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 EMMA_INT_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_EMMA_INT_ALV TYPE STANDARD TABLE OF EMMA_INT_ALV,
      WA_EMMA_INT_ALV TYPE EMMA_INT_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: <EMMA_INT_ALV> TYPE EMMA_INT_ALV.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EMMA_INT_ALV
*  INTO TABLE @DATA(IT_EMMA_INT_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_EMMA_INT_ALV INDEX 1 INTO DATA(WA_EMMA_INT_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EMMA_INT_ALV>-STATUS = 1.
<EMMA_INT_ALV>-CLIENT = 1.
<EMMA_INT_ALV>-RUNID = 1.
<EMMA_INT_ALV>-INTNR = 1.
<EMMA_INT_ALV>-INTLO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EMMA_INT_ALV-INTHI, sy-vline,
  WA_EMMA_INT_ALV-EXTRUNID, sy-vline,
  WA_EMMA_INT_ALV-OBJECT_PROCESS, sy-vline,
  WA_EMMA_INT_ALV-OBJECT_ERROR, sy-vline,
  WA_EMMA_INT_ALV-OBJECT_WARNING, sy-vline,
  WA_EMMA_INT_ALV-OBJECT_SUCCESS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EMMA_INT_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_EMMA_INT_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_EMMA_INT_ALV INTO WA_EMMA_INT_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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_EMMA_INT_ALV_STR, 
STATUS TYPE STRING,
CLIENT TYPE STRING,
RUNID TYPE STRING,
INTNR TYPE STRING,
INTLO TYPE STRING,
INTHI TYPE STRING,
EXTRUNID TYPE STRING,
OBJECT_PROCESS TYPE STRING,
OBJECT_ERROR TYPE STRING,
OBJECT_WARNING TYPE STRING,
OBJECT_SUCCESS TYPE STRING,
MESSAGE_ERROR TYPE STRING,
MESSAGE_WARNING TYPE STRING,
MESSAGE_INFO TYPE STRING,
MESSAGE_COUNT TYPE STRING,
FTCHBY TYPE STRING,
XFIN TYPE STRING,
ERRNUM TYPE STRING,
HITNUM TYPE STRING,
TBEG TYPE STRING,
DBEG TYPE STRING,
TEND TYPE STRING,
DEND TYPE STRING,
MOBRUNSTATUS TYPE STRING,
EMMA_CASE TYPE STRING,
LOGDATE TYPE STRING,
LOGTIME TYPE STRING,
CGEN_STATUS TYPE STRING,
XPREP TYPE STRING,
LOGNUMBER TYPE STRING,
EXTNUMBER TYPE STRING,
BOX TYPE STRING,
LOGTCODE TYPE STRING,
LOGUSER TYPE STRING,
JRUNSTATUS TYPE STRING,
CASES TYPE STRING,
XCSTATUS TYPE STRING,
XPCASESTATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EMMA_INT_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_EMMA_INT_ALV_STR-STATUS sy-vline 
WA_EMMA_INT_ALV_STR-CLIENT sy-vline 
WA_EMMA_INT_ALV_STR-RUNID sy-vline 
WA_EMMA_INT_ALV_STR-INTNR sy-vline 
WA_EMMA_INT_ALV_STR-INTLO sy-vline 
WA_EMMA_INT_ALV_STR-INTHI sy-vline 
WA_EMMA_INT_ALV_STR-EXTRUNID sy-vline 
WA_EMMA_INT_ALV_STR-OBJECT_PROCESS sy-vline 
WA_EMMA_INT_ALV_STR-OBJECT_ERROR sy-vline 
WA_EMMA_INT_ALV_STR-OBJECT_WARNING sy-vline 
WA_EMMA_INT_ALV_STR-OBJECT_SUCCESS sy-vline 
WA_EMMA_INT_ALV_STR-MESSAGE_ERROR sy-vline 
WA_EMMA_INT_ALV_STR-MESSAGE_WARNING sy-vline 
WA_EMMA_INT_ALV_STR-MESSAGE_INFO sy-vline 
WA_EMMA_INT_ALV_STR-MESSAGE_COUNT sy-vline 
WA_EMMA_INT_ALV_STR-FTCHBY sy-vline 
WA_EMMA_INT_ALV_STR-XFIN sy-vline 
WA_EMMA_INT_ALV_STR-ERRNUM sy-vline 
WA_EMMA_INT_ALV_STR-HITNUM sy-vline 
WA_EMMA_INT_ALV_STR-TBEG sy-vline 
WA_EMMA_INT_ALV_STR-DBEG sy-vline 
WA_EMMA_INT_ALV_STR-TEND sy-vline 
WA_EMMA_INT_ALV_STR-DEND sy-vline 
WA_EMMA_INT_ALV_STR-MOBRUNSTATUS sy-vline 
WA_EMMA_INT_ALV_STR-EMMA_CASE sy-vline 
WA_EMMA_INT_ALV_STR-LOGDATE sy-vline 
WA_EMMA_INT_ALV_STR-LOGTIME sy-vline 
WA_EMMA_INT_ALV_STR-CGEN_STATUS sy-vline 
WA_EMMA_INT_ALV_STR-XPREP sy-vline 
WA_EMMA_INT_ALV_STR-LOGNUMBER sy-vline 
WA_EMMA_INT_ALV_STR-EXTNUMBER sy-vline 
WA_EMMA_INT_ALV_STR-BOX sy-vline 
WA_EMMA_INT_ALV_STR-LOGTCODE sy-vline 
WA_EMMA_INT_ALV_STR-LOGUSER sy-vline 
WA_EMMA_INT_ALV_STR-JRUNSTATUS sy-vline 
WA_EMMA_INT_ALV_STR-CASES sy-vline 
WA_EMMA_INT_ALV_STR-XCSTATUS sy-vline 
WA_EMMA_INT_ALV_STR-XPCASESTATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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