ABAP Select data from SAP table /MAP/TS_SSMWL_EX into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /MAP/TS_SSMWL_EX 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 /MAP/TS_SSMWL_EX. 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 /MAP/TS_SSMWL_EX 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_/MAP/TS_SSMWL_EX TYPE STANDARD TABLE OF /MAP/TS_SSMWL_EX,
      WA_/MAP/TS_SSMWL_EX TYPE /MAP/TS_SSMWL_EX,
      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: </MAP/TS_SSMWL_EX> TYPE /MAP/TS_SSMWL_EX.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /MAP/TS_SSMWL_EX
*  INTO TABLE @DATA(IT_/MAP/TS_SSMWL_EX2).
*--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_/MAP/TS_SSMWL_EX INDEX 1 INTO DATA(WA_/MAP/TS_SSMWL_EX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</MAP/TS_SSMWL_EX>-MANDT = 1.
</MAP/TS_SSMWL_EX>-LSTPER = 1.
</MAP/TS_SSMWL_EX>-FISCVARNT = 1.
</MAP/TS_SSMWL_EX>-PRODUCT = 1.
</MAP/TS_SSMWL_EX>-SALESORG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/MAP/TS_SSMWL_EX-DISTR_CHAN, sy-vline,
  WA_/MAP/TS_SSMWL_EX-COLOR, sy-vline,
  WA_/MAP/TS_SSMWL_EX-MAPSIZE, sy-vline,
  WA_/MAP/TS_SSMWL_EX-PRICELIST, sy-vline,
  WA_/MAP/TS_SSMWL_EX-STGRTP, sy-vline,
  WA_/MAP/TS_SSMWL_EX-STRGRP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/MAP/TS_SSMWL_EX 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_/MAP/TS_SSMWL_EX 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_/MAP/TS_SSMWL_EX INTO WA_/MAP/TS_SSMWL_EX.


*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 PERI7, internal->external for field LSTPER
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_/MAP/TS_SSMWL_EX-LSTPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MAP/TS_SSMWL_EX-LSTPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field PRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/MAP/TS_SSMWL_EX-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MAP/TS_SSMWL_EX-PRODUCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/MAP/TS_SSMWL_EX-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MAP/TS_SSMWL_EX-UNIT.
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_/MAP/TS_SSMWL_EX_STR, 
MANDT TYPE STRING,
LSTPER TYPE STRING,
FISCVARNT TYPE STRING,
PRODUCT TYPE STRING,
SALESORG TYPE STRING,
DISTR_CHAN TYPE STRING,
COLOR TYPE STRING,
MAPSIZE TYPE STRING,
PRICELIST TYPE STRING,
STGRTP TYPE STRING,
STRGRP TYPE STRING,
LOCATION TYPE STRING,
ANLDATE TYPE STRING,
ACTRUNTM TYPE STRING,
TARGET TYPE STRING,
ACTSLSRTIO TYPE STRING,
MDPRC TYPE STRING,
STOCK TYPE STRING,
UNIT TYPE STRING,
RUNTM TYPE STRING,
ANEPRE TYPE STRING,
NOLOC TYPE STRING,
MDPROF TYPE STRING,
STATUS TYPE STRING,
S TYPE STRING,
ICON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/MAP/TS_SSMWL_EX_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_/MAP/TS_SSMWL_EX_STR-MANDT sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-LSTPER sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-FISCVARNT sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-PRODUCT sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-SALESORG sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-DISTR_CHAN sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-COLOR sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-MAPSIZE sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-PRICELIST sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-STGRTP sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-STRGRP sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-LOCATION sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-ANLDATE sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-ACTRUNTM sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-TARGET sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-ACTSLSRTIO sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-MDPRC sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-STOCK sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-UNIT sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-RUNTM sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-ANEPRE sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-NOLOC sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-MDPROF sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-STATUS sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-S sy-vline 
WA_/MAP/TS_SSMWL_EX_STR-ICON sy-vline      INTO ld_text SEPARATED BY SPACE.

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