ABAP Select data from SAP table /SAPAPO/MSNP_TLB_HEAD_DATA 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 /SAPAPO/MSNP_TLB_HEAD_DATA 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 /SAPAPO/MSNP_TLB_HEAD_DATA. 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 /SAPAPO/MSNP_TLB_HEAD_DATA 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_/SAPAPO/MSNP_TLB_HEAD_DATA TYPE STANDARD TABLE OF /SAPAPO/MSNP_TLB_HEAD_DATA,
      WA_/SAPAPO/MSNP_TLB_HEAD_DATA TYPE /SAPAPO/MSNP_TLB_HEAD_DATA,
      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: </SAPAPO/MSNP_TLB_HEAD_DATA> TYPE /SAPAPO/MSNP_TLB_HEAD_DATA.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPAPO/MSNP_TLB_HEAD_DATA
  INTO TABLE IT_/SAPAPO/MSNP_TLB_HEAD_DATA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/MSNP_TLB_HEAD_DATA
*  INTO TABLE @DATA(IT_/SAPAPO/MSNP_TLB_HEAD_DATA2).
*--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_/SAPAPO/MSNP_TLB_HEAD_DATA INDEX 1 INTO DATA(WA_/SAPAPO/MSNP_TLB_HEAD_DATA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPAPO/MSNP_TLB_HEAD_DATA ASSIGNING </SAPAPO/MSNP_TLB_HEAD_DATA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/MSNP_TLB_HEAD_DATA>-TEXT1A = 1.
</SAPAPO/MSNP_TLB_HEAD_DATA>-TEXT1B = 1.
</SAPAPO/MSNP_TLB_HEAD_DATA>-TEXT2A = 1.
</SAPAPO/MSNP_TLB_HEAD_DATA>-TEXT2B = 1.
</SAPAPO/MSNP_TLB_HEAD_DATA>-TEXT3A = 1.

ENDLOOP.

LOOP AT IT_/SAPAPO/MSNP_TLB_HEAD_DATA INTO WA_/SAPAPO/MSNP_TLB_HEAD_DATA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/MSNP_TLB_HEAD_DATA-TEXT3B, sy-vline,
  WA_/SAPAPO/MSNP_TLB_HEAD_DATA-TEXT4A, sy-vline,
  WA_/SAPAPO/MSNP_TLB_HEAD_DATA-TEXT4B, sy-vline,
  WA_/SAPAPO/MSNP_TLB_HEAD_DATA-TEXT5A, sy-vline,
  WA_/SAPAPO/MSNP_TLB_HEAD_DATA-TEXT5B, sy-vline,
  WA_/SAPAPO/MSNP_TLB_HEAD_DATA-MINVO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/MSNP_TLB_HEAD_DATA 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_/SAPAPO/MSNP_TLB_HEAD_DATA 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_/SAPAPO/MSNP_TLB_HEAD_DATA INTO WA_/SAPAPO/MSNP_TLB_HEAD_DATA.


*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 MINVOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/MSNP_TLB_HEAD_DATA-MINVOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/MSNP_TLB_HEAD_DATA-MINVOLEH.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit CUNIT, internal->external for field PALUN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/MSNP_TLB_HEAD_DATA-PALUN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/MSNP_TLB_HEAD_DATA-PALUN.
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_/SAPAPO/MSNP_TLB_HEAD_DATA_STR, 
TEXT1A TYPE STRING,
TEXT1B TYPE STRING,
TEXT2A TYPE STRING,
TEXT2B TYPE STRING,
TEXT3A TYPE STRING,
TEXT3B TYPE STRING,
TEXT4A TYPE STRING,
TEXT4B TYPE STRING,
TEXT5A TYPE STRING,
TEXT5B TYPE STRING,
MINVO TYPE STRING,
MINVOLEH TYPE STRING,
MAXVO TYPE STRING,
VOLEH TYPE STRING,
MINWE TYPE STRING,
MINGEWEI TYPE STRING,
MAXWE TYPE STRING,
GEWEI TYPE STRING,
MINSP TYPE STRING,
MAXSP TYPE STRING,
PALUN TYPE STRING,
TVHOR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/MSNP_TLB_HEAD_DATA_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_/SAPAPO/MSNP_TLB_HEAD_DATA_STR-TEXT1A sy-vline 
WA_/SAPAPO/MSNP_TLB_HEAD_DATA_STR-TEXT1B sy-vline 
WA_/SAPAPO/MSNP_TLB_HEAD_DATA_STR-TEXT2A sy-vline 
WA_/SAPAPO/MSNP_TLB_HEAD_DATA_STR-TEXT2B sy-vline 
WA_/SAPAPO/MSNP_TLB_HEAD_DATA_STR-TEXT3A sy-vline 
WA_/SAPAPO/MSNP_TLB_HEAD_DATA_STR-TEXT3B sy-vline 
WA_/SAPAPO/MSNP_TLB_HEAD_DATA_STR-TEXT4A sy-vline 
WA_/SAPAPO/MSNP_TLB_HEAD_DATA_STR-TEXT4B sy-vline 
WA_/SAPAPO/MSNP_TLB_HEAD_DATA_STR-TEXT5A sy-vline 
WA_/SAPAPO/MSNP_TLB_HEAD_DATA_STR-TEXT5B sy-vline 
WA_/SAPAPO/MSNP_TLB_HEAD_DATA_STR-MINVO sy-vline 
WA_/SAPAPO/MSNP_TLB_HEAD_DATA_STR-MINVOLEH sy-vline 
WA_/SAPAPO/MSNP_TLB_HEAD_DATA_STR-MAXVO sy-vline 
WA_/SAPAPO/MSNP_TLB_HEAD_DATA_STR-VOLEH sy-vline 
WA_/SAPAPO/MSNP_TLB_HEAD_DATA_STR-MINWE sy-vline 
WA_/SAPAPO/MSNP_TLB_HEAD_DATA_STR-MINGEWEI sy-vline 
WA_/SAPAPO/MSNP_TLB_HEAD_DATA_STR-MAXWE sy-vline 
WA_/SAPAPO/MSNP_TLB_HEAD_DATA_STR-GEWEI sy-vline 
WA_/SAPAPO/MSNP_TLB_HEAD_DATA_STR-MINSP sy-vline 
WA_/SAPAPO/MSNP_TLB_HEAD_DATA_STR-MAXSP sy-vline 
WA_/SAPAPO/MSNP_TLB_HEAD_DATA_STR-PALUN sy-vline 
WA_/SAPAPO/MSNP_TLB_HEAD_DATA_STR-TVHOR sy-vline      INTO ld_text SEPARATED BY SPACE.

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