ABAP Select data from SAP table T552A into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T552A 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 T552A. 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 T552A 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_T552A TYPE STANDARD TABLE OF T552A,
      WA_T552A TYPE T552A,
      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: <T552A> TYPE T552A.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T552A.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T552A
  INTO TABLE IT_T552A.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T552A
*  INTO TABLE @DATA(IT_T552A2).
*--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_T552A INDEX 1 INTO DATA(WA_T552A2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T552A ASSIGNING <T552A>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T552A>-MANDT = 1.
<T552A>-ZEITY = 1.
<T552A>-MOFID = 1.
<T552A>-MOSID = 1.
<T552A>-SCHKZ = 1.

ENDLOOP.

LOOP AT IT_T552A INTO WA_T552A.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T552A-KJAHR, sy-vline,
  WA_T552A-MONAT, sy-vline,
  WA_T552A-SOLST, sy-vline,
  WA_T552A-AEDTM, sy-vline,
  WA_T552A-USERA, sy-vline,
  WA_T552A-TPR01, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T552A 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_T552A 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_T552A INTO WA_T552A.


*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 GJAHR, internal->external for field KJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_T552A-KJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T552A-KJAHR.
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_T552A_STR, 
MANDT TYPE STRING,
ZEITY TYPE STRING,
MOFID TYPE STRING,
MOSID TYPE STRING,
SCHKZ TYPE STRING,
KJAHR TYPE STRING,
MONAT TYPE STRING,
SOLST TYPE STRING,
AEDTM TYPE STRING,
USERA TYPE STRING,
TPR01 TYPE STRING,
TTP01 TYPE STRING,
FTK01 TYPE STRING,
VAR01 TYPE STRING,
KNF01 TYPE STRING,
TPR02 TYPE STRING,
TTP02 TYPE STRING,
FTK02 TYPE STRING,
VAR02 TYPE STRING,
KNF02 TYPE STRING,
TPR03 TYPE STRING,
TTP03 TYPE STRING,
FTK03 TYPE STRING,
VAR03 TYPE STRING,
KNF03 TYPE STRING,
TPR04 TYPE STRING,
TTP04 TYPE STRING,
FTK04 TYPE STRING,
VAR04 TYPE STRING,
KNF04 TYPE STRING,
TPR05 TYPE STRING,
TTP05 TYPE STRING,
FTK05 TYPE STRING,
VAR05 TYPE STRING,
KNF05 TYPE STRING,
TPR06 TYPE STRING,
TTP06 TYPE STRING,
FTK06 TYPE STRING,
VAR06 TYPE STRING,
KNF06 TYPE STRING,
TPR07 TYPE STRING,
TTP07 TYPE STRING,
FTK07 TYPE STRING,
VAR07 TYPE STRING,
KNF07 TYPE STRING,
TPR08 TYPE STRING,
TTP08 TYPE STRING,
FTK08 TYPE STRING,
VAR08 TYPE STRING,
KNF08 TYPE STRING,
TPR09 TYPE STRING,
TTP09 TYPE STRING,
FTK09 TYPE STRING,
VAR09 TYPE STRING,
KNF09 TYPE STRING,
TPR10 TYPE STRING,
TTP10 TYPE STRING,
FTK10 TYPE STRING,
VAR10 TYPE STRING,
KNF10 TYPE STRING,
TPR11 TYPE STRING,
TTP11 TYPE STRING,
FTK11 TYPE STRING,
VAR11 TYPE STRING,
KNF11 TYPE STRING,
TPR12 TYPE STRING,
TTP12 TYPE STRING,
FTK12 TYPE STRING,
VAR12 TYPE STRING,
KNF12 TYPE STRING,
TPR13 TYPE STRING,
TTP13 TYPE STRING,
FTK13 TYPE STRING,
VAR13 TYPE STRING,
KNF13 TYPE STRING,
TPR14 TYPE STRING,
TTP14 TYPE STRING,
FTK14 TYPE STRING,
VAR14 TYPE STRING,
KNF14 TYPE STRING,
TPR15 TYPE STRING,
TTP15 TYPE STRING,
FTK15 TYPE STRING,
VAR15 TYPE STRING,
KNF15 TYPE STRING,
TPR16 TYPE STRING,
TTP16 TYPE STRING,
FTK16 TYPE STRING,
VAR16 TYPE STRING,
KNF16 TYPE STRING,
TPR17 TYPE STRING,
TTP17 TYPE STRING,
FTK17 TYPE STRING,
VAR17 TYPE STRING,
KNF17 TYPE STRING,
TPR18 TYPE STRING,
TTP18 TYPE STRING,
FTK18 TYPE STRING,
VAR18 TYPE STRING,
KNF18 TYPE STRING,
TPR19 TYPE STRING,
TTP19 TYPE STRING,
FTK19 TYPE STRING,
VAR19 TYPE STRING,
KNF19 TYPE STRING,
TPR20 TYPE STRING,
TTP20 TYPE STRING,
FTK20 TYPE STRING,
VAR20 TYPE STRING,
KNF20 TYPE STRING,
TPR21 TYPE STRING,
TTP21 TYPE STRING,
FTK21 TYPE STRING,
VAR21 TYPE STRING,
KNF21 TYPE STRING,
TPR22 TYPE STRING,
TTP22 TYPE STRING,
FTK22 TYPE STRING,
VAR22 TYPE STRING,
KNF22 TYPE STRING,
TPR23 TYPE STRING,
TTP23 TYPE STRING,
FTK23 TYPE STRING,
VAR23 TYPE STRING,
KNF23 TYPE STRING,
TPR24 TYPE STRING,
TTP24 TYPE STRING,
FTK24 TYPE STRING,
VAR24 TYPE STRING,
KNF24 TYPE STRING,
TPR25 TYPE STRING,
TTP25 TYPE STRING,
FTK25 TYPE STRING,
VAR25 TYPE STRING,
KNF25 TYPE STRING,
TPR26 TYPE STRING,
TTP26 TYPE STRING,
FTK26 TYPE STRING,
VAR26 TYPE STRING,
KNF26 TYPE STRING,
TPR27 TYPE STRING,
TTP27 TYPE STRING,
FTK27 TYPE STRING,
VAR27 TYPE STRING,
KNF27 TYPE STRING,
TPR28 TYPE STRING,
TTP28 TYPE STRING,
FTK28 TYPE STRING,
VAR28 TYPE STRING,
KNF28 TYPE STRING,
TPR29 TYPE STRING,
TTP29 TYPE STRING,
FTK29 TYPE STRING,
VAR29 TYPE STRING,
KNF29 TYPE STRING,
TPR30 TYPE STRING,
TTP30 TYPE STRING,
FTK30 TYPE STRING,
VAR30 TYPE STRING,
KNF30 TYPE STRING,
TPR31 TYPE STRING,
TTP31 TYPE STRING,
FTK31 TYPE STRING,
VAR31 TYPE STRING,
KNF31 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T552A_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_T552A_STR-MANDT sy-vline 
WA_T552A_STR-ZEITY sy-vline 
WA_T552A_STR-MOFID sy-vline 
WA_T552A_STR-MOSID sy-vline 
WA_T552A_STR-SCHKZ sy-vline 
WA_T552A_STR-KJAHR sy-vline 
WA_T552A_STR-MONAT sy-vline 
WA_T552A_STR-SOLST sy-vline 
WA_T552A_STR-AEDTM sy-vline 
WA_T552A_STR-USERA sy-vline 
WA_T552A_STR-TPR01 sy-vline 
WA_T552A_STR-TTP01 sy-vline 
WA_T552A_STR-FTK01 sy-vline 
WA_T552A_STR-VAR01 sy-vline 
WA_T552A_STR-KNF01 sy-vline 
WA_T552A_STR-TPR02 sy-vline 
WA_T552A_STR-TTP02 sy-vline 
WA_T552A_STR-FTK02 sy-vline 
WA_T552A_STR-VAR02 sy-vline 
WA_T552A_STR-KNF02 sy-vline 
WA_T552A_STR-TPR03 sy-vline 
WA_T552A_STR-TTP03 sy-vline 
WA_T552A_STR-FTK03 sy-vline 
WA_T552A_STR-VAR03 sy-vline 
WA_T552A_STR-KNF03 sy-vline 
WA_T552A_STR-TPR04 sy-vline 
WA_T552A_STR-TTP04 sy-vline 
WA_T552A_STR-FTK04 sy-vline 
WA_T552A_STR-VAR04 sy-vline 
WA_T552A_STR-KNF04 sy-vline 
WA_T552A_STR-TPR05 sy-vline 
WA_T552A_STR-TTP05 sy-vline 
WA_T552A_STR-FTK05 sy-vline 
WA_T552A_STR-VAR05 sy-vline 
WA_T552A_STR-KNF05 sy-vline 
WA_T552A_STR-TPR06 sy-vline 
WA_T552A_STR-TTP06 sy-vline 
WA_T552A_STR-FTK06 sy-vline 
WA_T552A_STR-VAR06 sy-vline 
WA_T552A_STR-KNF06 sy-vline 
WA_T552A_STR-TPR07 sy-vline 
WA_T552A_STR-TTP07 sy-vline 
WA_T552A_STR-FTK07 sy-vline 
WA_T552A_STR-VAR07 sy-vline 
WA_T552A_STR-KNF07 sy-vline 
WA_T552A_STR-TPR08 sy-vline 
WA_T552A_STR-TTP08 sy-vline 
WA_T552A_STR-FTK08 sy-vline 
WA_T552A_STR-VAR08 sy-vline 
WA_T552A_STR-KNF08 sy-vline 
WA_T552A_STR-TPR09 sy-vline 
WA_T552A_STR-TTP09 sy-vline 
WA_T552A_STR-FTK09 sy-vline 
WA_T552A_STR-VAR09 sy-vline 
WA_T552A_STR-KNF09 sy-vline 
WA_T552A_STR-TPR10 sy-vline 
WA_T552A_STR-TTP10 sy-vline 
WA_T552A_STR-FTK10 sy-vline 
WA_T552A_STR-VAR10 sy-vline 
WA_T552A_STR-KNF10 sy-vline 
WA_T552A_STR-TPR11 sy-vline 
WA_T552A_STR-TTP11 sy-vline 
WA_T552A_STR-FTK11 sy-vline 
WA_T552A_STR-VAR11 sy-vline 
WA_T552A_STR-KNF11 sy-vline 
WA_T552A_STR-TPR12 sy-vline 
WA_T552A_STR-TTP12 sy-vline 
WA_T552A_STR-FTK12 sy-vline 
WA_T552A_STR-VAR12 sy-vline 
WA_T552A_STR-KNF12 sy-vline 
WA_T552A_STR-TPR13 sy-vline 
WA_T552A_STR-TTP13 sy-vline 
WA_T552A_STR-FTK13 sy-vline 
WA_T552A_STR-VAR13 sy-vline 
WA_T552A_STR-KNF13 sy-vline 
WA_T552A_STR-TPR14 sy-vline 
WA_T552A_STR-TTP14 sy-vline 
WA_T552A_STR-FTK14 sy-vline 
WA_T552A_STR-VAR14 sy-vline 
WA_T552A_STR-KNF14 sy-vline 
WA_T552A_STR-TPR15 sy-vline 
WA_T552A_STR-TTP15 sy-vline 
WA_T552A_STR-FTK15 sy-vline 
WA_T552A_STR-VAR15 sy-vline 
WA_T552A_STR-KNF15 sy-vline 
WA_T552A_STR-TPR16 sy-vline 
WA_T552A_STR-TTP16 sy-vline 
WA_T552A_STR-FTK16 sy-vline 
WA_T552A_STR-VAR16 sy-vline 
WA_T552A_STR-KNF16 sy-vline 
WA_T552A_STR-TPR17 sy-vline 
WA_T552A_STR-TTP17 sy-vline 
WA_T552A_STR-FTK17 sy-vline 
WA_T552A_STR-VAR17 sy-vline 
WA_T552A_STR-KNF17 sy-vline 
WA_T552A_STR-TPR18 sy-vline 
WA_T552A_STR-TTP18 sy-vline 
WA_T552A_STR-FTK18 sy-vline 
WA_T552A_STR-VAR18 sy-vline 
WA_T552A_STR-KNF18 sy-vline 
WA_T552A_STR-TPR19 sy-vline 
WA_T552A_STR-TTP19 sy-vline 
WA_T552A_STR-FTK19 sy-vline 
WA_T552A_STR-VAR19 sy-vline 
WA_T552A_STR-KNF19 sy-vline 
WA_T552A_STR-TPR20 sy-vline 
WA_T552A_STR-TTP20 sy-vline 
WA_T552A_STR-FTK20 sy-vline 
WA_T552A_STR-VAR20 sy-vline 
WA_T552A_STR-KNF20 sy-vline 
WA_T552A_STR-TPR21 sy-vline 
WA_T552A_STR-TTP21 sy-vline 
WA_T552A_STR-FTK21 sy-vline 
WA_T552A_STR-VAR21 sy-vline 
WA_T552A_STR-KNF21 sy-vline 
WA_T552A_STR-TPR22 sy-vline 
WA_T552A_STR-TTP22 sy-vline 
WA_T552A_STR-FTK22 sy-vline 
WA_T552A_STR-VAR22 sy-vline 
WA_T552A_STR-KNF22 sy-vline 
WA_T552A_STR-TPR23 sy-vline 
WA_T552A_STR-TTP23 sy-vline 
WA_T552A_STR-FTK23 sy-vline 
WA_T552A_STR-VAR23 sy-vline 
WA_T552A_STR-KNF23 sy-vline 
WA_T552A_STR-TPR24 sy-vline 
WA_T552A_STR-TTP24 sy-vline 
WA_T552A_STR-FTK24 sy-vline 
WA_T552A_STR-VAR24 sy-vline 
WA_T552A_STR-KNF24 sy-vline 
WA_T552A_STR-TPR25 sy-vline 
WA_T552A_STR-TTP25 sy-vline 
WA_T552A_STR-FTK25 sy-vline 
WA_T552A_STR-VAR25 sy-vline 
WA_T552A_STR-KNF25 sy-vline 
WA_T552A_STR-TPR26 sy-vline 
WA_T552A_STR-TTP26 sy-vline 
WA_T552A_STR-FTK26 sy-vline 
WA_T552A_STR-VAR26 sy-vline 
WA_T552A_STR-KNF26 sy-vline 
WA_T552A_STR-TPR27 sy-vline 
WA_T552A_STR-TTP27 sy-vline 
WA_T552A_STR-FTK27 sy-vline 
WA_T552A_STR-VAR27 sy-vline 
WA_T552A_STR-KNF27 sy-vline 
WA_T552A_STR-TPR28 sy-vline 
WA_T552A_STR-TTP28 sy-vline 
WA_T552A_STR-FTK28 sy-vline 
WA_T552A_STR-VAR28 sy-vline 
WA_T552A_STR-KNF28 sy-vline 
WA_T552A_STR-TPR29 sy-vline 
WA_T552A_STR-TTP29 sy-vline 
WA_T552A_STR-FTK29 sy-vline 
WA_T552A_STR-VAR29 sy-vline 
WA_T552A_STR-KNF29 sy-vline 
WA_T552A_STR-TPR30 sy-vline 
WA_T552A_STR-TTP30 sy-vline 
WA_T552A_STR-FTK30 sy-vline 
WA_T552A_STR-VAR30 sy-vline 
WA_T552A_STR-KNF30 sy-vline 
WA_T552A_STR-TPR31 sy-vline 
WA_T552A_STR-TTP31 sy-vline 
WA_T552A_STR-FTK31 sy-vline 
WA_T552A_STR-VAR31 sy-vline 
WA_T552A_STR-KNF31 sy-vline      INTO ld_text SEPARATED BY SPACE.

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