ABAP Select data from SAP table ISU2A_ABRZEIT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ISU2A_ABRZEIT 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 ISU2A_ABRZEIT. 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 ISU2A_ABRZEIT 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_ISU2A_ABRZEIT TYPE STANDARD TABLE OF ISU2A_ABRZEIT,
      WA_ISU2A_ABRZEIT TYPE ISU2A_ABRZEIT,
      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: <ISU2A_ABRZEIT> TYPE ISU2A_ABRZEIT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ISU2A_ABRZEIT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ISU2A_ABRZEIT
  INTO TABLE IT_ISU2A_ABRZEIT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISU2A_ABRZEIT
*  INTO TABLE @DATA(IT_ISU2A_ABRZEIT2).
*--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_ISU2A_ABRZEIT INDEX 1 INTO DATA(WA_ISU2A_ABRZEIT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ISU2A_ABRZEIT ASSIGNING <ISU2A_ABRZEIT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISU2A_ABRZEIT>-NO_ABRZEIT = 1.
<ISU2A_ABRZEIT>-AB = 1.
<ISU2A_ABRZEIT>-BIS = 1.
<ISU2A_ABRZEIT>-PERTYP = 1.
<ISU2A_ABRZEIT>-PERCREA = 1.

ENDLOOP.

LOOP AT IT_ISU2A_ABRZEIT INTO WA_ISU2A_ABRZEIT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISU2A_ABRZEIT-USEESTMR, sy-vline,
  WA_ISU2A_ABRZEIT-EINZUG, sy-vline,
  WA_ISU2A_ABRZEIT-XVERA, sy-vline,
  WA_ISU2A_ABRZEIT-AUSZUG, sy-vline,
  WA_ISU2A_ABRZEIT-BACKNO, sy-vline,
  WA_ISU2A_ABRZEIT-MONAT_AB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISU2A_ABRZEIT 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_ISU2A_ABRZEIT 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_ISU2A_ABRZEIT INTO WA_ISU2A_ABRZEIT.


*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 PERCREA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU2A_ABRZEIT-PERCREA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU2A_ABRZEIT-PERCREA.
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_ISU2A_ABRZEIT_STR, 
NO_ABRZEIT TYPE STRING,
AB TYPE STRING,
BIS TYPE STRING,
PERTYP TYPE STRING,
PERCREA TYPE STRING,
USEESTMR TYPE STRING,
EINZUG TYPE STRING,
XVERA TYPE STRING,
AUSZUG TYPE STRING,
BACKNO TYPE STRING,
MONAT_AB TYPE STRING,
MONAT_BIS TYPE STRING,
PLANBIS TYPE STRING,
EINZDAT TYPE STRING,
XVERA2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISU2A_ABRZEIT_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_ISU2A_ABRZEIT_STR-NO_ABRZEIT sy-vline 
WA_ISU2A_ABRZEIT_STR-AB sy-vline 
WA_ISU2A_ABRZEIT_STR-BIS sy-vline 
WA_ISU2A_ABRZEIT_STR-PERTYP sy-vline 
WA_ISU2A_ABRZEIT_STR-PERCREA sy-vline 
WA_ISU2A_ABRZEIT_STR-USEESTMR sy-vline 
WA_ISU2A_ABRZEIT_STR-EINZUG sy-vline 
WA_ISU2A_ABRZEIT_STR-XVERA sy-vline 
WA_ISU2A_ABRZEIT_STR-AUSZUG sy-vline 
WA_ISU2A_ABRZEIT_STR-BACKNO sy-vline 
WA_ISU2A_ABRZEIT_STR-MONAT_AB sy-vline 
WA_ISU2A_ABRZEIT_STR-MONAT_BIS sy-vline 
WA_ISU2A_ABRZEIT_STR-PLANBIS sy-vline 
WA_ISU2A_ABRZEIT_STR-EINZDAT sy-vline 
WA_ISU2A_ABRZEIT_STR-XVERA2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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