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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /MAP/S_TDLOCASGRID
*  INTO TABLE @DATA(IT_/MAP/S_TDLOCASGRID2).
*--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/S_TDLOCASGRID INDEX 1 INTO DATA(WA_/MAP/S_TDLOCASGRID2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</MAP/S_TDLOCASGRID>-LIGHT = 1.
</MAP/S_TDLOCASGRID>-PLANT = 1.
</MAP/S_TDLOCASGRID>-PLANTT = 1.
</MAP/S_TDLOCASGRID>-ASORTACT = 1.
</MAP/S_TDLOCASGRID>-ASORTACTT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/MAP/S_TDLOCASGRID-DATEACTF, sy-vline,
  WA_/MAP/S_TDLOCASGRID-DATEACTU, sy-vline,
  WA_/MAP/S_TDLOCASGRID-DIM1ACT, sy-vline,
  WA_/MAP/S_TDLOCASGRID-DIM1ACTT, sy-vline,
  WA_/MAP/S_TDLOCASGRID-DIM2ACT, sy-vline,
  WA_/MAP/S_TDLOCASGRID-DIM2ACTT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/MAP/S_TDLOCASGRID 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/S_TDLOCASGRID 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/S_TDLOCASGRID INTO WA_/MAP/S_TDLOCASGRID.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_/MAP/S_TDLOCASGRID_STR, 
LIGHT TYPE STRING,
PLANT TYPE STRING,
PLANTT TYPE STRING,
ASORTACT TYPE STRING,
ASORTACTT TYPE STRING,
DATEACTF TYPE STRING,
DATEACTU TYPE STRING,
DIM1ACT TYPE STRING,
DIM1ACTT TYPE STRING,
DIM2ACT TYPE STRING,
DIM2ACTT TYPE STRING,
DIM3ACT TYPE STRING,
DIM3ACTT TYPE STRING,
RT_ASORT TYPE STRING,
RT_ASORTT TYPE STRING,
RF_DIM1 TYPE STRING,
RF_DIM1T TYPE STRING,
RF_RDIM1 TYPE STRING,
RF_DIM2 TYPE STRING,
RF_DIM2T TYPE STRING,
RF_RDIM2 TYPE STRING,
RF_DIM3 TYPE STRING,
RF_DIM3T TYPE STRING,
RF_RDIM3 TYPE STRING,
RT_DATEF TYPE STRING,
RT_DATEU TYPE STRING,
CT TYPE STRING,
RT_MDRELST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/MAP/S_TDLOCASGRID_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/S_TDLOCASGRID_STR-LIGHT sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-PLANT sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-PLANTT sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-ASORTACT sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-ASORTACTT sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-DATEACTF sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-DATEACTU sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-DIM1ACT sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-DIM1ACTT sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-DIM2ACT sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-DIM2ACTT sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-DIM3ACT sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-DIM3ACTT sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-RT_ASORT sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-RT_ASORTT sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-RF_DIM1 sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-RF_DIM1T sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-RF_RDIM1 sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-RF_DIM2 sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-RF_DIM2T sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-RF_RDIM2 sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-RF_DIM3 sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-RF_DIM3T sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-RF_RDIM3 sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-RT_DATEF sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-RT_DATEU sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-CT sy-vline 
WA_/MAP/S_TDLOCASGRID_STR-RT_MDRELST sy-vline      INTO ld_text SEPARATED BY SPACE.

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