ABAP Select data from SAP table WB2_S_T006_T006A into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP WB2_S_T006_T006A 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 WB2_S_T006_T006A. 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 WB2_S_T006_T006A 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_WB2_S_T006_T006A TYPE STANDARD TABLE OF WB2_S_T006_T006A,
      WA_WB2_S_T006_T006A TYPE WB2_S_T006_T006A,
      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: <WB2_S_T006_T006A> TYPE WB2_S_T006_T006A.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_WB2_S_T006_T006A.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM WB2_S_T006_T006A
  INTO TABLE IT_WB2_S_T006_T006A.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WB2_S_T006_T006A
*  INTO TABLE @DATA(IT_WB2_S_T006_T006A2).
*--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_WB2_S_T006_T006A INDEX 1 INTO DATA(WA_WB2_S_T006_T006A2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_WB2_S_T006_T006A ASSIGNING <WB2_S_T006_T006A>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WB2_S_T006_T006A>-MANDT = 1.
<WB2_S_T006_T006A>-MSEHI = 1.
<WB2_S_T006_T006A>-KZEX3 = 1.
<WB2_S_T006_T006A>-KZEX6 = 1.
<WB2_S_T006_T006A>-ANDEC = 1.

ENDLOOP.

LOOP AT IT_WB2_S_T006_T006A INTO WA_WB2_S_T006_T006A.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WB2_S_T006_T006A-KZKEH, sy-vline,
  WA_WB2_S_T006_T006A-KZWOB, sy-vline,
  WA_WB2_S_T006_T006A-KZ1EH, sy-vline,
  WA_WB2_S_T006_T006A-KZ2EH, sy-vline,
  WA_WB2_S_T006_T006A-DIMID, sy-vline,
  WA_WB2_S_T006_T006A-ZAEHL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WB2_S_T006_T006A 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_WB2_S_T006_T006A 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_WB2_S_T006_T006A INTO WA_WB2_S_T006_T006A.


*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 CUNIT, internal->external for field MSEHI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WB2_S_T006_T006A-MSEHI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_S_T006_T006A-MSEHI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field TEMP_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WB2_S_T006_T006A-TEMP_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_S_T006_T006A-TEMP_UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PRESS_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WB2_S_T006_T006A-PRESS_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_S_T006_T006A-PRESS_UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS_TX
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_WB2_S_T006_T006A-SPRAS_TX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_S_T006_T006A-SPRAS_TX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MSEHI_TX
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WB2_S_T006_T006A-MSEHI_TX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_S_T006_T006A-MSEHI_TX.
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_WB2_S_T006_T006A_STR, 
MANDT TYPE STRING,
MSEHI TYPE STRING,
KZEX3 TYPE STRING,
KZEX6 TYPE STRING,
ANDEC TYPE STRING,
KZKEH TYPE STRING,
KZWOB TYPE STRING,
KZ1EH TYPE STRING,
KZ2EH TYPE STRING,
DIMID TYPE STRING,
ZAEHL TYPE STRING,
NENNR TYPE STRING,
EXP10 TYPE STRING,
ADDKO TYPE STRING,
EXPON TYPE STRING,
DECAN TYPE STRING,
ISOCODE TYPE STRING,
PRIMARY TYPE STRING,
TEMP_VALUE TYPE STRING,
TEMP_UNIT TYPE STRING,
FAMUNIT TYPE STRING,
PRESS_VAL TYPE STRING,
PRESS_UNIT TYPE STRING,
MANDT_TX TYPE STRING,
SPRAS_TX TYPE STRING,
MSEHI_TX TYPE STRING,
MSEH3_TX TYPE STRING,
MSEH6_TX TYPE STRING,
MSEHT_TX TYPE STRING,
MSEHL_TX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WB2_S_T006_T006A_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_WB2_S_T006_T006A_STR-MANDT sy-vline 
WA_WB2_S_T006_T006A_STR-MSEHI sy-vline 
WA_WB2_S_T006_T006A_STR-KZEX3 sy-vline 
WA_WB2_S_T006_T006A_STR-KZEX6 sy-vline 
WA_WB2_S_T006_T006A_STR-ANDEC sy-vline 
WA_WB2_S_T006_T006A_STR-KZKEH sy-vline 
WA_WB2_S_T006_T006A_STR-KZWOB sy-vline 
WA_WB2_S_T006_T006A_STR-KZ1EH sy-vline 
WA_WB2_S_T006_T006A_STR-KZ2EH sy-vline 
WA_WB2_S_T006_T006A_STR-DIMID sy-vline 
WA_WB2_S_T006_T006A_STR-ZAEHL sy-vline 
WA_WB2_S_T006_T006A_STR-NENNR sy-vline 
WA_WB2_S_T006_T006A_STR-EXP10 sy-vline 
WA_WB2_S_T006_T006A_STR-ADDKO sy-vline 
WA_WB2_S_T006_T006A_STR-EXPON sy-vline 
WA_WB2_S_T006_T006A_STR-DECAN sy-vline 
WA_WB2_S_T006_T006A_STR-ISOCODE sy-vline 
WA_WB2_S_T006_T006A_STR-PRIMARY sy-vline 
WA_WB2_S_T006_T006A_STR-TEMP_VALUE sy-vline 
WA_WB2_S_T006_T006A_STR-TEMP_UNIT sy-vline 
WA_WB2_S_T006_T006A_STR-FAMUNIT sy-vline 
WA_WB2_S_T006_T006A_STR-PRESS_VAL sy-vline 
WA_WB2_S_T006_T006A_STR-PRESS_UNIT sy-vline 
WA_WB2_S_T006_T006A_STR-MANDT_TX sy-vline 
WA_WB2_S_T006_T006A_STR-SPRAS_TX sy-vline 
WA_WB2_S_T006_T006A_STR-MSEHI_TX sy-vline 
WA_WB2_S_T006_T006A_STR-MSEH3_TX sy-vline 
WA_WB2_S_T006_T006A_STR-MSEH6_TX sy-vline 
WA_WB2_S_T006_T006A_STR-MSEHT_TX sy-vline 
WA_WB2_S_T006_T006A_STR-MSEHL_TX sy-vline      INTO ld_text SEPARATED BY SPACE.

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