ABAP Select data from SAP table TEMP21PG5 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TEMP21PG5 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 TEMP21PG5. 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 TEMP21PG5 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_TEMP21PG5 TYPE STANDARD TABLE OF TEMP21PG5,
      WA_TEMP21PG5 TYPE TEMP21PG5,
      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: <TEMP21PG5> TYPE TEMP21PG5.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TEMP21PG5.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TEMP21PG5
  INTO TABLE IT_TEMP21PG5.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TEMP21PG5
*  INTO TABLE @DATA(IT_TEMP21PG52).
*--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_TEMP21PG5 INDEX 1 INTO DATA(WA_TEMP21PG52).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TEMP21PG5 ASSIGNING <TEMP21PG5>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TEMP21PG5>-PERNRPG5 = 1.
<TEMP21PG5>-ADDRESSE1 = 1.
<TEMP21PG5>-BEGDAE2_YRMIN0 = 1.
<TEMP21PG5>-BEGDAE2_YRMIN1 = 1.
<TEMP21PG5>-ENDDAE2_YRMIN0 = 1.

ENDLOOP.

LOOP AT IT_TEMP21PG5 INTO WA_TEMP21PG5.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TEMP21PG5-ENDDAE2_YRMIN1, sy-vline,
  WA_TEMP21PG5-ITEME3_YRMIN0, sy-vline,
  WA_TEMP21PG5-ITEME3_YRMIN1, sy-vline,
  WA_TEMP21PG5-ITEME4A_YRMIN0, sy-vline,
  WA_TEMP21PG5-ITEME4A_YRMIN1, sy-vline,
  WA_TEMP21PG5-ITEME4B_YRMIN0, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TEMP21PG5 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_TEMP21PG5 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_TEMP21PG5 INTO WA_TEMP21PG5.


*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_TEMP21PG5_STR, 
PERNRPG5 TYPE STRING,
ADDRESSE1 TYPE STRING,
BEGDAE2_YRMIN0 TYPE STRING,
BEGDAE2_YRMIN1 TYPE STRING,
ENDDAE2_YRMIN0 TYPE STRING,
ENDDAE2_YRMIN1 TYPE STRING,
ITEME3_YRMIN0 TYPE STRING,
ITEME3_YRMIN1 TYPE STRING,
ITEME4A_YRMIN0 TYPE STRING,
ITEME4A_YRMIN1 TYPE STRING,
ITEME4B_YRMIN0 TYPE STRING,
ITEME4B_YRMIN1 TYPE STRING,
ITEME4C_YRMIN0 TYPE STRING,
ITEME4C_YRMIN1 TYPE STRING,
ITEME5_YRMIN1 TYPE STRING,
ITEME5_YRMIN0 TYPE STRING,
ITEME6_YRMIN1 TYPE STRING,
ITEME6_YRMIN0 TYPE STRING,
ADDRESSE7A TYPE STRING,
ADDRESSE7B TYPE STRING,
BEGDAE8_YRMIN0 TYPE STRING,
BEGDAE8_YRMIN1 TYPE STRING,
ENDDAE8_YRMIN0 TYPE STRING,
ENDDAE8_YRMIN1 TYPE STRING,
ITEME9_YRMIN0 TYPE STRING,
ITEME9_YRMIN1 TYPE STRING,
ITEME10A_YRMIN0 TYPE STRING,
ITEME10A_YRMIN1 TYPE STRING,
ITEME10B_YRMIN0 TYPE STRING,
ITEME10B_YRMIN1 TYPE STRING,
ITEME10C_YRMIN0 TYPE STRING,
ITEME10C_YRMIN1 TYPE STRING,
ITEME11_YRMIN0 TYPE STRING,
ITEME11_YRMIN1 TYPE STRING,
ITEME12_YRMIN0 TYPE STRING,
ITEME12_YRMIN1 TYPE STRING,
ITEME13_YRMIN0 TYPE STRING,
ITEME13_YRMIN1 TYPE STRING,
ITEME14_YRMIN0 TYPE STRING,
ITEME14_YRMIN1 TYPE STRING,
ITEME15_YRMIN0 TYPE STRING,
ITEME15_YRMIN1 TYPE STRING,
ITEME16_YRMIN0 TYPE STRING,
ITEME16_YRMIN1 TYPE STRING,
ITEME17_YRMIN0 TYPE STRING,
ITEME17_YRMIN1 TYPE STRING,
ITEME18_YRMIN0 TYPE STRING,
ITEME18_YRMIN1 TYPE STRING,
ITEMF1_YRMIN0 TYPE STRING,
ITEMF1_YRMIN1 TYPE STRING,
ITEMF2_YRMIN0 TYPE STRING,
ITEMF2_YRMIN1 TYPE STRING,
PAGENOPG5 TYPE STRING,
ADDRESSE1L TYPE STRING,
ADDRESSE7L TYPE STRING,
EE_NAME_PG5 TYPE STRING,
EE_NRIC_PG5 TYPE STRING,
EE_FIN_PG5 TYPE STRING,
TOT_ACC0_PG5 TYPE STRING,
TOT_ACC1_PG5 TYPE STRING,
TOTAL0_PG5 TYPE STRING,
TOTAL1_PG5 TYPE STRING,
ITEME6A_YRMIN1 TYPE STRING,
ITEME6A_YRMIN0 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TEMP21PG5_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_TEMP21PG5_STR-PERNRPG5 sy-vline 
WA_TEMP21PG5_STR-ADDRESSE1 sy-vline 
WA_TEMP21PG5_STR-BEGDAE2_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-BEGDAE2_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ENDDAE2_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-ENDDAE2_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ITEME3_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-ITEME3_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ITEME4A_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-ITEME4A_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ITEME4B_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-ITEME4B_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ITEME4C_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-ITEME4C_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ITEME5_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ITEME5_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-ITEME6_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ITEME6_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-ADDRESSE7A sy-vline 
WA_TEMP21PG5_STR-ADDRESSE7B sy-vline 
WA_TEMP21PG5_STR-BEGDAE8_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-BEGDAE8_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ENDDAE8_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-ENDDAE8_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ITEME9_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-ITEME9_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ITEME10A_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-ITEME10A_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ITEME10B_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-ITEME10B_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ITEME10C_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-ITEME10C_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ITEME11_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-ITEME11_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ITEME12_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-ITEME12_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ITEME13_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-ITEME13_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ITEME14_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-ITEME14_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ITEME15_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-ITEME15_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ITEME16_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-ITEME16_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ITEME17_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-ITEME17_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ITEME18_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-ITEME18_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ITEMF1_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-ITEMF1_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ITEMF2_YRMIN0 sy-vline 
WA_TEMP21PG5_STR-ITEMF2_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-PAGENOPG5 sy-vline 
WA_TEMP21PG5_STR-ADDRESSE1L sy-vline 
WA_TEMP21PG5_STR-ADDRESSE7L sy-vline 
WA_TEMP21PG5_STR-EE_NAME_PG5 sy-vline 
WA_TEMP21PG5_STR-EE_NRIC_PG5 sy-vline 
WA_TEMP21PG5_STR-EE_FIN_PG5 sy-vline 
WA_TEMP21PG5_STR-TOT_ACC0_PG5 sy-vline 
WA_TEMP21PG5_STR-TOT_ACC1_PG5 sy-vline 
WA_TEMP21PG5_STR-TOTAL0_PG5 sy-vline 
WA_TEMP21PG5_STR-TOTAL1_PG5 sy-vline 
WA_TEMP21PG5_STR-ITEME6A_YRMIN1 sy-vline 
WA_TEMP21PG5_STR-ITEME6A_YRMIN0 sy-vline      INTO ld_text SEPARATED BY SPACE.

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