ABAP Select data from SAP table IFMEUF_CERT_AMTS_TEST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IFMEUF_CERT_AMTS_TEST
*  INTO TABLE @DATA(IT_IFMEUF_CERT_AMTS_TEST2).
*--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_IFMEUF_CERT_AMTS_TEST INDEX 1 INTO DATA(WA_IFMEUF_CERT_AMTS_TEST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IFMEUF_CERT_AMTS_TEST>-CERT_ITEM = 1.
<IFMEUF_CERT_AMTS_TEST>-AWTYP = 1.
<IFMEUF_CERT_AMTS_TEST>-AWSYS = 1.
<IFMEUF_CERT_AMTS_TEST>-AWKEY = 1.
<IFMEUF_CERT_AMTS_TEST>-AWPOS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IFMEUF_CERT_AMTS_TEST-FINEXC, sy-vline,
  WA_IFMEUF_CERT_AMTS_TEST-BUKRS, sy-vline,
  WA_IFMEUF_CERT_AMTS_TEST-BELNR, sy-vline,
  WA_IFMEUF_CERT_AMTS_TEST-GJAHR, sy-vline,
  WA_IFMEUF_CERT_AMTS_TEST-FINEXL, sy-vline,
  WA_IFMEUF_CERT_AMTS_TEST-DOC_CURR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IFMEUF_CERT_AMTS_TEST 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_IFMEUF_CERT_AMTS_TEST 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_IFMEUF_CERT_AMTS_TEST INTO WA_IFMEUF_CERT_AMTS_TEST.


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

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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IFMEUF_CERT_AMTS_TEST-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFMEUF_CERT_AMTS_TEST-GJAHR.
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_IFMEUF_CERT_AMTS_TEST_STR, 
CERT_ITEM TYPE STRING,
AWTYP TYPE STRING,
AWSYS TYPE STRING,
AWKEY TYPE STRING,
AWPOS TYPE STRING,
FINEXC TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
FINEXL TYPE STRING,
DOC_CURR TYPE STRING,
CURR_CONV_DAT TYPE STRING,
PAY_DAT TYPE STRING,
OPERA TYPE STRING,
DOCGRP TYPE STRING,
GROSS TYPE STRING,
NET TYPE STRING,
ELIG TYPE STRING,
PART_PAY TYPE STRING,
APP_AMT TYPE STRING,
CURR TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
CUST_CORRECT TYPE STRING,
FINSRC TYPE STRING,
RUNAMT TYPE STRING,
COMPL TYPE STRING,
PREV_S TYPE STRING,
PREV_T TYPE STRING,
FINALZ TYPE STRING,
TIMESL TYPE STRING,
CERTIF TYPE STRING,
CERTIF_SYS TYPE STRING,
IGNORE_LINE TYPE STRING,
CORRECTION TYPE STRING,
CORR_CERDT TYPE STRING,
CORR_CERNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IFMEUF_CERT_AMTS_TEST_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_IFMEUF_CERT_AMTS_TEST_STR-CERT_ITEM sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-AWTYP sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-AWSYS sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-AWKEY sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-AWPOS sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-FINEXC sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-BUKRS sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-BELNR sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-GJAHR sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-FINEXL sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-DOC_CURR sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-CURR_CONV_DAT sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-PAY_DAT sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-OPERA sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-DOCGRP sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-GROSS sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-NET sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-ELIG sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-PART_PAY sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-APP_AMT sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-CURR sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-BLDAT sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-BUDAT sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-CUST_CORRECT sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-FINSRC sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-RUNAMT sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-COMPL sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-PREV_S sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-PREV_T sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-FINALZ sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-TIMESL sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-CERTIF sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-CERTIF_SYS sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-IGNORE_LINE sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-CORRECTION sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-CORR_CERDT sy-vline 
WA_IFMEUF_CERT_AMTS_TEST_STR-CORR_CERNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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