ABAP Select data from SAP table IAPJEITMAGGRID into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IAPJEITMAGGRID
*  INTO TABLE @DATA(IT_IAPJEITMAGGRID2).
*--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_IAPJEITMAGGRID INDEX 1 INTO DATA(WA_IAPJEITMAGGRID2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IAPJEITMAGGRID>-MANDT = 1.
<IAPJEITMAGGRID>-COMPANYCODE = 1.
<IAPJEITMAGGRID>-FISCALYEAR = 1.
<IAPJEITMAGGRID>-ACCOUNTINGDOCUMENT = 1.
<IAPJEITMAGGRID>-LEDGERGLLINEITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IAPJEITMAGGRID-ACCOUNTINGDOCUMENTITEM, sy-vline,
  WA_IAPJEITMAGGRID-FINANCIALACCOUNTTYPE, sy-vline,
  WA_IAPJEITMAGGRID-SUPPLIER, sy-vline,
  WA_IAPJEITMAGGRID-GLACCOUNT, sy-vline,
  WA_IAPJEITMAGGRID-SPECIALGLCODE, sy-vline,
  WA_IAPJEITMAGGRID-PROFITCENTER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IAPJEITMAGGRID 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_IAPJEITMAGGRID 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_IAPJEITMAGGRID INTO WA_IAPJEITMAGGRID.


*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 GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IAPJEITMAGGRID-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IAPJEITMAGGRID-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field RECONCILIATIONACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IAPJEITMAGGRID-RECONCILIATIONACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IAPJEITMAGGRID-RECONCILIATIONACCOUNT.
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_IAPJEITMAGGRID_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
FISCALYEAR TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
LEDGERGLLINEITEM TYPE STRING,
ACCOUNTINGDOCUMENTITEM TYPE STRING,
FINANCIALACCOUNTTYPE TYPE STRING,
SUPPLIER TYPE STRING,
GLACCOUNT TYPE STRING,
SPECIALGLCODE TYPE STRING,
PROFITCENTER TYPE STRING,
BUSINESSAREA TYPE STRING,
SEGMENT TYPE STRING,
ASSIGNMENTREFERENCE TYPE STRING,
NETDUEINTERVALTEXT TYPE STRING,
SUPPLIERCOUNTRY TYPE STRING,
SUPPLIERREGION TYPE STRING,
ACCOUNTINGCLERK TYPE STRING,
CHARTOFACCOUNTS TYPE STRING,
RECONCILIATIONACCOUNT TYPE STRING,
SUPPLIERBASICAUTHORIZATIONGRP TYPE STRING,
SUPPLIERFINSAUTHORIZATIONGRP TYPE STRING,
SUPPLIERACCOUNTGROUP TYPE STRING,
DISPLAYCURRENCY TYPE STRING,
TOTALAMOUNTINDISPLAYCRCY TYPE STRING,
TOTALNOTOVRDAMTINDSPCRCY TYPE STRING,
TOTALOVERDUEAMTINDSPCRCY TYPE STRING,
NETDUEINTVL1AMTINDSPCRCY TYPE STRING,
NETDUEINTVL2AMTINDSPCRCY TYPE STRING,
NETDUEINTVL3AMTINDSPCRCY TYPE STRING,
NETDUEINTVL4AMTINDSPCRCY TYPE STRING,
FIRSTINTVLFUTRDUEAMTINDSPCRCY TYPE STRING,
SECONDINTVLFUTRDUEAMTINDSPCRCY TYPE STRING,
THIRDINTVLFUTRDUEAMTINDSPCRCY TYPE STRING,
FOURTHINTVLFUTRDUEAMTINDSPCRCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IAPJEITMAGGRID_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_IAPJEITMAGGRID_STR-MANDT sy-vline 
WA_IAPJEITMAGGRID_STR-COMPANYCODE sy-vline 
WA_IAPJEITMAGGRID_STR-FISCALYEAR sy-vline 
WA_IAPJEITMAGGRID_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_IAPJEITMAGGRID_STR-LEDGERGLLINEITEM sy-vline 
WA_IAPJEITMAGGRID_STR-ACCOUNTINGDOCUMENTITEM sy-vline 
WA_IAPJEITMAGGRID_STR-FINANCIALACCOUNTTYPE sy-vline 
WA_IAPJEITMAGGRID_STR-SUPPLIER sy-vline 
WA_IAPJEITMAGGRID_STR-GLACCOUNT sy-vline 
WA_IAPJEITMAGGRID_STR-SPECIALGLCODE sy-vline 
WA_IAPJEITMAGGRID_STR-PROFITCENTER sy-vline 
WA_IAPJEITMAGGRID_STR-BUSINESSAREA sy-vline 
WA_IAPJEITMAGGRID_STR-SEGMENT sy-vline 
WA_IAPJEITMAGGRID_STR-ASSIGNMENTREFERENCE sy-vline 
WA_IAPJEITMAGGRID_STR-NETDUEINTERVALTEXT sy-vline 
WA_IAPJEITMAGGRID_STR-SUPPLIERCOUNTRY sy-vline 
WA_IAPJEITMAGGRID_STR-SUPPLIERREGION sy-vline 
WA_IAPJEITMAGGRID_STR-ACCOUNTINGCLERK sy-vline 
WA_IAPJEITMAGGRID_STR-CHARTOFACCOUNTS sy-vline 
WA_IAPJEITMAGGRID_STR-RECONCILIATIONACCOUNT sy-vline 
WA_IAPJEITMAGGRID_STR-SUPPLIERBASICAUTHORIZATIONGRP sy-vline 
WA_IAPJEITMAGGRID_STR-SUPPLIERFINSAUTHORIZATIONGRP sy-vline 
WA_IAPJEITMAGGRID_STR-SUPPLIERACCOUNTGROUP sy-vline 
WA_IAPJEITMAGGRID_STR-DISPLAYCURRENCY sy-vline 
WA_IAPJEITMAGGRID_STR-TOTALAMOUNTINDISPLAYCRCY sy-vline 
WA_IAPJEITMAGGRID_STR-TOTALNOTOVRDAMTINDSPCRCY sy-vline 
WA_IAPJEITMAGGRID_STR-TOTALOVERDUEAMTINDSPCRCY sy-vline 
WA_IAPJEITMAGGRID_STR-NETDUEINTVL1AMTINDSPCRCY sy-vline 
WA_IAPJEITMAGGRID_STR-NETDUEINTVL2AMTINDSPCRCY sy-vline 
WA_IAPJEITMAGGRID_STR-NETDUEINTVL3AMTINDSPCRCY sy-vline 
WA_IAPJEITMAGGRID_STR-NETDUEINTVL4AMTINDSPCRCY sy-vline 
WA_IAPJEITMAGGRID_STR-FIRSTINTVLFUTRDUEAMTINDSPCRCY sy-vline 
WA_IAPJEITMAGGRID_STR-SECONDINTVLFUTRDUEAMTINDSPCRCY sy-vline 
WA_IAPJEITMAGGRID_STR-THIRDINTVLFUTRDUEAMTINDSPCRCY sy-vline 
WA_IAPJEITMAGGRID_STR-FOURTHINTVLFUTRDUEAMTINDSPCRCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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