ABAP Select data from SAP table P37_FORM_CONTR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P37_FORM_CONTR 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 P37_FORM_CONTR. 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 P37_FORM_CONTR 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_P37_FORM_CONTR TYPE STANDARD TABLE OF P37_FORM_CONTR,
      WA_P37_FORM_CONTR TYPE P37_FORM_CONTR,
      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: <P37_FORM_CONTR> TYPE P37_FORM_CONTR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P37_FORM_CONTR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P37_FORM_CONTR
  INTO TABLE IT_P37_FORM_CONTR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P37_FORM_CONTR
*  INTO TABLE @DATA(IT_P37_FORM_CONTR2).
*--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_P37_FORM_CONTR INDEX 1 INTO DATA(WA_P37_FORM_CONTR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P37_FORM_CONTR ASSIGNING <P37_FORM_CONTR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P37_FORM_CONTR>-HEADER = 1.
<P37_FORM_CONTR>-PERNR = 1.
<P37_FORM_CONTR>-EMPRESA = 1.
<P37_FORM_CONTR>-CITY = 1.
<P37_FORM_CONTR>-STATE = 1.

ENDLOOP.

LOOP AT IT_P37_FORM_CONTR INTO WA_P37_FORM_CONTR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P37_FORM_CONTR-ADDRESS, sy-vline,
  WA_P37_FORM_CONTR-CGC, sy-vline,
  WA_P37_FORM_CONTR-EMPREGADO, sy-vline,
  WA_P37_FORM_CONTR-NATIONALITY, sy-vline,
  WA_P37_FORM_CONTR-ESTADO_CIVIL, sy-vline,
  WA_P37_FORM_CONTR-CTPS_NUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P37_FORM_CONTR 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_P37_FORM_CONTR 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_P37_FORM_CONTR INTO WA_P37_FORM_CONTR.


*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 CGCBR, internal->external for field CGC
CALL FUNCTION 'CONVERSION_EXIT_CGCBR_OUTPUT'
  EXPORTING
    input =                      WA_P37_FORM_CONTR-CGC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P37_FORM_CONTR-CGC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PDATE, internal->external for field DATA_NASC
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_P37_FORM_CONTR-DATA_NASC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P37_FORM_CONTR-DATA_NASC.
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_P37_FORM_CONTR_STR, 
HEADER TYPE STRING,
PERNR TYPE STRING,
EMPRESA TYPE STRING,
CITY TYPE STRING,
STATE TYPE STRING,
ADDRESS TYPE STRING,
CGC TYPE STRING,
EMPREGADO TYPE STRING,
NATIONALITY TYPE STRING,
ESTADO_CIVIL TYPE STRING,
CTPS_NUM TYPE STRING,
CTPS_SER TYPE STRING,
ADDRESS_EE TYPE STRING,
POSITION TYPE STRING,
POSITION_TEXT TYPE STRING,
CBO TYPE STRING,
CBODE TYPE STRING,
CONTRACT_DAYS1 TYPE STRING,
CONTRACT_DAYS2 TYPE STRING,
CONTR_BEGDA1 TYPE STRING,
CONTR_ENDDA1 TYPE STRING,
CONTR_BEGDA2 TYPE STRING,
CONTR_ENDDA2 TYPE STRING,
HOURS_WEEK TYPE STRING,
TIME_FROM TYPE STRING,
TIME_TO TYPE STRING,
BREAK_TIME TYPE STRING,
SALARY TYPE STRING,
MOEDA TYPE STRING,
FOOTER TYPE STRING,
PERNR TYPE STRING,
CITY TYPE STRING,
DAY TYPE STRING,
MONTH TYPE STRING,
YEAR TYPE STRING,
COMP_NAME TYPE STRING,
EMPL_NAME TYPE STRING,
FATHER_NAME TYPE STRING,
MOTHER_NAME TYPE STRING,
GRAU_INSTR TYPE STRING,
TITULO_NR TYPE STRING,
TITULO_ZONA TYPE STRING,
TITULO_SECAO TYPE STRING,
RESERV_NR TYPE STRING,
RESERV_CATEG TYPE STRING,
PIS_NUM TYPE STRING,
PIS_DATE TYPE STRING,
CPF TYPE STRING,
RG TYPE STRING,
DATA_NASC TYPE STRING,
LOCAL_NASC TYPE STRING,
BANK_FGTS TYPE STRING,
NAME_BK_FGTS TYPE STRING,
AGENCY_FGTS TYPE STRING,
FGTS_CITY TYPE STRING,
BANK_PIS TYPE STRING,
NAME_BK_PIS TYPE STRING,
AGENCY_PIS TYPE STRING,
PIS_CITY TYPE STRING,
CART_HABIL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P37_FORM_CONTR_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_P37_FORM_CONTR_STR-HEADER sy-vline 
WA_P37_FORM_CONTR_STR-PERNR sy-vline 
WA_P37_FORM_CONTR_STR-EMPRESA sy-vline 
WA_P37_FORM_CONTR_STR-CITY sy-vline 
WA_P37_FORM_CONTR_STR-STATE sy-vline 
WA_P37_FORM_CONTR_STR-ADDRESS sy-vline 
WA_P37_FORM_CONTR_STR-CGC sy-vline 
WA_P37_FORM_CONTR_STR-EMPREGADO sy-vline 
WA_P37_FORM_CONTR_STR-NATIONALITY sy-vline 
WA_P37_FORM_CONTR_STR-ESTADO_CIVIL sy-vline 
WA_P37_FORM_CONTR_STR-CTPS_NUM sy-vline 
WA_P37_FORM_CONTR_STR-CTPS_SER sy-vline 
WA_P37_FORM_CONTR_STR-ADDRESS_EE sy-vline 
WA_P37_FORM_CONTR_STR-POSITION sy-vline 
WA_P37_FORM_CONTR_STR-POSITION_TEXT sy-vline 
WA_P37_FORM_CONTR_STR-CBO sy-vline 
WA_P37_FORM_CONTR_STR-CBODE sy-vline 
WA_P37_FORM_CONTR_STR-CONTRACT_DAYS1 sy-vline 
WA_P37_FORM_CONTR_STR-CONTRACT_DAYS2 sy-vline 
WA_P37_FORM_CONTR_STR-CONTR_BEGDA1 sy-vline 
WA_P37_FORM_CONTR_STR-CONTR_ENDDA1 sy-vline 
WA_P37_FORM_CONTR_STR-CONTR_BEGDA2 sy-vline 
WA_P37_FORM_CONTR_STR-CONTR_ENDDA2 sy-vline 
WA_P37_FORM_CONTR_STR-HOURS_WEEK sy-vline 
WA_P37_FORM_CONTR_STR-TIME_FROM sy-vline 
WA_P37_FORM_CONTR_STR-TIME_TO sy-vline 
WA_P37_FORM_CONTR_STR-BREAK_TIME sy-vline 
WA_P37_FORM_CONTR_STR-SALARY sy-vline 
WA_P37_FORM_CONTR_STR-MOEDA sy-vline 
WA_P37_FORM_CONTR_STR-FOOTER sy-vline 
WA_P37_FORM_CONTR_STR-PERNR sy-vline 
WA_P37_FORM_CONTR_STR-CITY sy-vline 
WA_P37_FORM_CONTR_STR-DAY sy-vline 
WA_P37_FORM_CONTR_STR-MONTH sy-vline 
WA_P37_FORM_CONTR_STR-YEAR sy-vline 
WA_P37_FORM_CONTR_STR-COMP_NAME sy-vline 
WA_P37_FORM_CONTR_STR-EMPL_NAME sy-vline 
WA_P37_FORM_CONTR_STR-FATHER_NAME sy-vline 
WA_P37_FORM_CONTR_STR-MOTHER_NAME sy-vline 
WA_P37_FORM_CONTR_STR-GRAU_INSTR sy-vline 
WA_P37_FORM_CONTR_STR-TITULO_NR sy-vline 
WA_P37_FORM_CONTR_STR-TITULO_ZONA sy-vline 
WA_P37_FORM_CONTR_STR-TITULO_SECAO sy-vline 
WA_P37_FORM_CONTR_STR-RESERV_NR sy-vline 
WA_P37_FORM_CONTR_STR-RESERV_CATEG sy-vline 
WA_P37_FORM_CONTR_STR-PIS_NUM sy-vline 
WA_P37_FORM_CONTR_STR-PIS_DATE sy-vline 
WA_P37_FORM_CONTR_STR-CPF sy-vline 
WA_P37_FORM_CONTR_STR-RG sy-vline 
WA_P37_FORM_CONTR_STR-DATA_NASC sy-vline 
WA_P37_FORM_CONTR_STR-LOCAL_NASC sy-vline 
WA_P37_FORM_CONTR_STR-BANK_FGTS sy-vline 
WA_P37_FORM_CONTR_STR-NAME_BK_FGTS sy-vline 
WA_P37_FORM_CONTR_STR-AGENCY_FGTS sy-vline 
WA_P37_FORM_CONTR_STR-FGTS_CITY sy-vline 
WA_P37_FORM_CONTR_STR-BANK_PIS sy-vline 
WA_P37_FORM_CONTR_STR-NAME_BK_PIS sy-vline 
WA_P37_FORM_CONTR_STR-AGENCY_PIS sy-vline 
WA_P37_FORM_CONTR_STR-PIS_CITY sy-vline 
WA_P37_FORM_CONTR_STR-CART_HABIL sy-vline      INTO ld_text SEPARATED BY SPACE.

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