ABAP Select data from SAP table IEQS_EQUZ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IEQS_EQUZ
*  INTO TABLE @DATA(IT_IEQS_EQUZ2).
*--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_IEQS_EQUZ INDEX 1 INTO DATA(WA_IEQS_EQUZ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IEQS_EQUZ>-DATBI = 1.
<IEQS_EQUZ>-EQLFN = 1.
<IEQS_EQUZ>-EQUZN = 1.
<IEQS_EQUZ>-ERDAT = 1.
<IEQS_EQUZ>-ERNAM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IEQS_EQUZ-AEDAT, sy-vline,
  WA_IEQS_EQUZ-AENAM, sy-vline,
  WA_IEQS_EQUZ-TIMBI, sy-vline,
  WA_IEQS_EQUZ-ESTAI, sy-vline,
  WA_IEQS_EQUZ-ESTAE, sy-vline,
  WA_IEQS_EQUZ-STNAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IEQS_EQUZ 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_IEQS_EQUZ 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_IEQS_EQUZ INTO WA_IEQS_EQUZ.


*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 MATN1, internal->external for field SUBMT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IEQS_EQUZ-SUBMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IEQS_EQUZ-SUBMT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field KUND1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IEQS_EQUZ-KUND1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IEQS_EQUZ-KUND1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUND2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IEQS_EQUZ-KUND2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IEQS_EQUZ-KUND2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUND3
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IEQS_EQUZ-KUND3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IEQS_EQUZ-KUND3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field IBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IEQS_EQUZ-IBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IEQS_EQUZ-IBLNR.
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_IEQS_EQUZ_STR, 
DATBI TYPE STRING,
EQLFN TYPE STRING,
EQUZN TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
TIMBI TYPE STRING,
ESTAI TYPE STRING,
ESTAE TYPE STRING,
STNAM TYPE STRING,
LVORM TYPE STRING,
DATAB TYPE STRING,
IWERK TYPE STRING,
IWERKI TYPE STRING,
SUBMT TYPE STRING,
MAPAR TYPE STRING,
HEQUI TYPE STRING,
HEQNR TYPE STRING,
INGRP TYPE STRING,
INGRPI TYPE STRING,
PM_OBJTY TYPE STRING,
GEWRK TYPE STRING,
GEWRKI TYPE STRING,
TIDNR TYPE STRING,
TIDNRI TYPE STRING,
ILOAN TYPE STRING,
KUND1 TYPE STRING,
KUND2 TYPE STRING,
KUND3 TYPE STRING,
LIZNR TYPE STRING,
RBNR TYPE STRING,
EZDAT TYPE STRING,
EZBER TYPE STRING,
EZNUM TYPE STRING,
RBNR_I TYPE STRING,
IBLNR TYPE STRING,
BLDAT TYPE STRING,
PVS_FOCUS TYPE STRING,
PPEGUID TYPE STRING,
TECHS TYPE STRING,
FUNCID TYPE STRING,
FRCFIT TYPE STRING,
FRCRMV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IEQS_EQUZ_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_IEQS_EQUZ_STR-DATBI sy-vline 
WA_IEQS_EQUZ_STR-EQLFN sy-vline 
WA_IEQS_EQUZ_STR-EQUZN sy-vline 
WA_IEQS_EQUZ_STR-ERDAT sy-vline 
WA_IEQS_EQUZ_STR-ERNAM sy-vline 
WA_IEQS_EQUZ_STR-AEDAT sy-vline 
WA_IEQS_EQUZ_STR-AENAM sy-vline 
WA_IEQS_EQUZ_STR-TIMBI sy-vline 
WA_IEQS_EQUZ_STR-ESTAI sy-vline 
WA_IEQS_EQUZ_STR-ESTAE sy-vline 
WA_IEQS_EQUZ_STR-STNAM sy-vline 
WA_IEQS_EQUZ_STR-LVORM sy-vline 
WA_IEQS_EQUZ_STR-DATAB sy-vline 
WA_IEQS_EQUZ_STR-IWERK sy-vline 
WA_IEQS_EQUZ_STR-IWERKI sy-vline 
WA_IEQS_EQUZ_STR-SUBMT sy-vline 
WA_IEQS_EQUZ_STR-MAPAR sy-vline 
WA_IEQS_EQUZ_STR-HEQUI sy-vline 
WA_IEQS_EQUZ_STR-HEQNR sy-vline 
WA_IEQS_EQUZ_STR-INGRP sy-vline 
WA_IEQS_EQUZ_STR-INGRPI sy-vline 
WA_IEQS_EQUZ_STR-PM_OBJTY sy-vline 
WA_IEQS_EQUZ_STR-GEWRK sy-vline 
WA_IEQS_EQUZ_STR-GEWRKI sy-vline 
WA_IEQS_EQUZ_STR-TIDNR sy-vline 
WA_IEQS_EQUZ_STR-TIDNRI sy-vline 
WA_IEQS_EQUZ_STR-ILOAN sy-vline 
WA_IEQS_EQUZ_STR-KUND1 sy-vline 
WA_IEQS_EQUZ_STR-KUND2 sy-vline 
WA_IEQS_EQUZ_STR-KUND3 sy-vline 
WA_IEQS_EQUZ_STR-LIZNR sy-vline 
WA_IEQS_EQUZ_STR-RBNR sy-vline 
WA_IEQS_EQUZ_STR-EZDAT sy-vline 
WA_IEQS_EQUZ_STR-EZBER sy-vline 
WA_IEQS_EQUZ_STR-EZNUM sy-vline 
WA_IEQS_EQUZ_STR-RBNR_I sy-vline 
WA_IEQS_EQUZ_STR-IBLNR sy-vline 
WA_IEQS_EQUZ_STR-BLDAT sy-vline 
WA_IEQS_EQUZ_STR-PVS_FOCUS sy-vline 
WA_IEQS_EQUZ_STR-PPEGUID sy-vline 
WA_IEQS_EQUZ_STR-TECHS sy-vline 
WA_IEQS_EQUZ_STR-FUNCID sy-vline 
WA_IEQS_EQUZ_STR-FRCFIT sy-vline 
WA_IEQS_EQUZ_STR-FRCRMV sy-vline      INTO ld_text SEPARATED BY SPACE.

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