ABAP Select data from SAP table OIUH_JE17 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP OIUH_JE17 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 OIUH_JE17. 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 OIUH_JE17 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_OIUH_JE17 TYPE STANDARD TABLE OF OIUH_JE17,
      WA_OIUH_JE17 TYPE OIUH_JE17,
      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: <OIUH_JE17> TYPE OIUH_JE17.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_OIUH_JE17.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM OIUH_JE17
  INTO TABLE IT_OIUH_JE17.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIUH_JE17
*  INTO TABLE @DATA(IT_OIUH_JE172).
*--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_OIUH_JE17 INDEX 1 INTO DATA(WA_OIUH_JE172).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_OIUH_JE17 ASSIGNING <OIUH_JE17>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIUH_JE17>-C_GL_GL_SYS_NO = 1.
<OIUH_JE17>-C_GL_OR_LVL_1_NO = 1.
<OIUH_JE17>-C_OR1_OR_LVL_1_NM = 1.
<OIUH_JE17>-C_GL_ACCT_PERD_DT = 1.
<OIUH_JE17>-C_GL_ACCT_NO = 1.

ENDLOOP.

LOOP AT IT_OIUH_JE17 INTO WA_OIUH_JE17.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIUH_JE17-C_COA_ACCT_NM, sy-vline,
  WA_OIUH_JE17-C_GL_WL_NO, sy-vline,
  WA_OIUH_JE17-C_GL_WC_NO, sy-vline,
  WA_OIUH_JE17-C_WC_WC_NM, sy-vline,
  WA_OIUH_JE17-C_GL_PR_NO, sy-vline,
  WA_OIUH_JE17-C_GL_DOI_NO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIUH_JE17 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_OIUH_JE17 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_OIUH_JE17 INTO WA_OIUH_JE17.


*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 C_GL_SA_MP_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIUH_JE17-C_GL_SA_MP_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIUH_JE17-C_GL_SA_MP_NO.
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_OIUH_JE17_STR, 
C_GL_GL_SYS_NO TYPE STRING,
C_GL_OR_LVL_1_NO TYPE STRING,
C_OR1_OR_LVL_1_NM TYPE STRING,
C_GL_ACCT_PERD_DT TYPE STRING,
C_GL_ACCT_NO TYPE STRING,
C_COA_ACCT_NM TYPE STRING,
C_GL_WL_NO TYPE STRING,
C_GL_WC_NO TYPE STRING,
C_WC_WC_NM TYPE STRING,
C_GL_PR_NO TYPE STRING,
C_GL_DOI_NO TYPE STRING,
C_DI_DI_NM TYPE STRING,
C_GL_PD_CD TYPE STRING,
C_A_TT_ELEM_DE TYPE STRING,
C_GL_SA_DT TYPE STRING,
C_GL_CT_NO TYPE STRING,
C_B_TT_ELEM_DE TYPE STRING,
C_GL_DN_NO TYPE STRING,
C_GL_SUB_NWK_NO TYPE STRING,
C_DN_DN_DE TYPE STRING,
C_TPSL_PRDR_NO TYPE STRING,
C_TPSL_PRDR_SEQ_NO TYPE STRING,
C_C_TT_ELEM_DE TYPE STRING,
C_D_TT_ELEM_DE TYPE STRING,
C_TPSL_ORIG_MP_NO TYPE STRING,
C_E_TT_ELEM_DE TYPE STRING,
C_TPSL_UNIT_PR_NO TYPE STRING,
C_F_TT_ELEM_DE TYPE STRING,
C_GL_SA_MP_NO TYPE STRING,
C_MP_MP_DE TYPE STRING,
C_TPSL_ST_CD TYPE STRING,
C_TPSL_TAX_CD TYPE STRING,
C_GL_TRANS_AM TYPE STRING,
C_GL_TRANS_QY TYPE STRING,
C_GL_GR_AM TYPE STRING,
C_GL_GR_QY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIUH_JE17_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_OIUH_JE17_STR-C_GL_GL_SYS_NO sy-vline 
WA_OIUH_JE17_STR-C_GL_OR_LVL_1_NO sy-vline 
WA_OIUH_JE17_STR-C_OR1_OR_LVL_1_NM sy-vline 
WA_OIUH_JE17_STR-C_GL_ACCT_PERD_DT sy-vline 
WA_OIUH_JE17_STR-C_GL_ACCT_NO sy-vline 
WA_OIUH_JE17_STR-C_COA_ACCT_NM sy-vline 
WA_OIUH_JE17_STR-C_GL_WL_NO sy-vline 
WA_OIUH_JE17_STR-C_GL_WC_NO sy-vline 
WA_OIUH_JE17_STR-C_WC_WC_NM sy-vline 
WA_OIUH_JE17_STR-C_GL_PR_NO sy-vline 
WA_OIUH_JE17_STR-C_GL_DOI_NO sy-vline 
WA_OIUH_JE17_STR-C_DI_DI_NM sy-vline 
WA_OIUH_JE17_STR-C_GL_PD_CD sy-vline 
WA_OIUH_JE17_STR-C_A_TT_ELEM_DE sy-vline 
WA_OIUH_JE17_STR-C_GL_SA_DT sy-vline 
WA_OIUH_JE17_STR-C_GL_CT_NO sy-vline 
WA_OIUH_JE17_STR-C_B_TT_ELEM_DE sy-vline 
WA_OIUH_JE17_STR-C_GL_DN_NO sy-vline 
WA_OIUH_JE17_STR-C_GL_SUB_NWK_NO sy-vline 
WA_OIUH_JE17_STR-C_DN_DN_DE sy-vline 
WA_OIUH_JE17_STR-C_TPSL_PRDR_NO sy-vline 
WA_OIUH_JE17_STR-C_TPSL_PRDR_SEQ_NO sy-vline 
WA_OIUH_JE17_STR-C_C_TT_ELEM_DE sy-vline 
WA_OIUH_JE17_STR-C_D_TT_ELEM_DE sy-vline 
WA_OIUH_JE17_STR-C_TPSL_ORIG_MP_NO sy-vline 
WA_OIUH_JE17_STR-C_E_TT_ELEM_DE sy-vline 
WA_OIUH_JE17_STR-C_TPSL_UNIT_PR_NO sy-vline 
WA_OIUH_JE17_STR-C_F_TT_ELEM_DE sy-vline 
WA_OIUH_JE17_STR-C_GL_SA_MP_NO sy-vline 
WA_OIUH_JE17_STR-C_MP_MP_DE sy-vline 
WA_OIUH_JE17_STR-C_TPSL_ST_CD sy-vline 
WA_OIUH_JE17_STR-C_TPSL_TAX_CD sy-vline 
WA_OIUH_JE17_STR-C_GL_TRANS_AM sy-vline 
WA_OIUH_JE17_STR-C_GL_TRANS_QY sy-vline 
WA_OIUH_JE17_STR-C_GL_GR_AM sy-vline 
WA_OIUH_JE17_STR-C_GL_GR_QY sy-vline      INTO ld_text SEPARATED BY SPACE.

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