ABAP Select data from SAP table TABA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TABA
*  INTO TABLE @DATA(IT_TABA2).
*--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_TABA INDEX 1 INTO DATA(WA_TABA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TABA>-MANDT = 1.
<TABA>-BUKRS = 1.
<TABA>-LDGRP = 1.
<TABA>-AFBLGJ = 1.
<TABA>-AFBLPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TABA-AFBANZ, sy-vline,
  WA_TABA-BLNRF, sy-vline,
  WA_TABA-BLNRT, sy-vline,
  WA_TABA-XBUKZ, sy-vline,
  WA_TABA-EDATE, sy-vline,
  WA_TABA-ETIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TABA 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_TABA 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_TABA INTO WA_TABA.


*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 AFBLGJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_TABA-AFBLGJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TABA-AFBLGJ.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field BLNRT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TABA-BLNRT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TABA-BLNRT.
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_TABA_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
LDGRP TYPE STRING,
AFBLGJ TYPE STRING,
AFBLPE TYPE STRING,
AFBANZ TYPE STRING,
BLNRF TYPE STRING,
BLNRT TYPE STRING,
XBUKZ TYPE STRING,
EDATE TYPE STRING,
ETIME TYPE STRING,
RTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TABA_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_TABA_STR-MANDT sy-vline 
WA_TABA_STR-BUKRS sy-vline 
WA_TABA_STR-LDGRP sy-vline 
WA_TABA_STR-AFBLGJ sy-vline 
WA_TABA_STR-AFBLPE sy-vline 
WA_TABA_STR-AFBANZ sy-vline 
WA_TABA_STR-BLNRF sy-vline 
WA_TABA_STR-BLNRT sy-vline 
WA_TABA_STR-XBUKZ sy-vline 
WA_TABA_STR-EDATE sy-vline 
WA_TABA_STR-ETIME sy-vline 
WA_TABA_STR-RTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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