ABAP Select data from SAP table OIISOCO1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP OIISOCO1 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 OIISOCO1. 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 OIISOCO1 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_OIISOCO1 TYPE STANDARD TABLE OF OIISOCO1,
      WA_OIISOCO1 TYPE OIISOCO1,
      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: <OIISOCO1> TYPE OIISOCO1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_OIISOCO1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM OIISOCO1
  INTO TABLE IT_OIISOCO1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIISOCO1
*  INTO TABLE @DATA(IT_OIISOCO12).
*--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_OIISOCO1 INDEX 1 INTO DATA(WA_OIISOCO12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_OIISOCO1 ASSIGNING <OIISOCO1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIISOCO1>-MANDT = 1.
<OIISOCO1>-SOCNR = 1.
<OIISOCO1>-LVC_METH = 1.
<OIISOCO1>-CALI_HIST = 1.
<OIISOCO1>-SLVNR = 1.

ENDLOOP.

LOOP AT IT_OIISOCO1 INTO WA_OIISOCO1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIISOCO1-SLVIND, sy-vline,
  WA_OIISOCO1-VALFROM, sy-vline,
  WA_OIISOCO1-MAXIN, sy-vline,
  WA_OIISOCO1-MAXOUT, sy-vline,
  WA_OIISOCO1-WASKZ, sy-vline,
  WA_OIISOCO1-WASPC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIISOCO1 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_OIISOCO1 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_OIISOCO1 INTO WA_OIISOCO1.


*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_OIISOCO1_STR, 
MANDT TYPE STRING,
SOCNR TYPE STRING,
LVC_METH TYPE STRING,
CALI_HIST TYPE STRING,
SLVNR TYPE STRING,
SLVIND TYPE STRING,
VALFROM TYPE STRING,
MAXIN TYPE STRING,
MAXOUT TYPE STRING,
WASKZ TYPE STRING,
WASPC TYPE STRING,
GFLAG TYPE STRING,
HFLAG TYPE STRING,
AZEIT TYPE STRING,
EXPACORR TYPE STRING,
ROOFCORR TYPE STRING,
WATRCORR TYPE STRING,
UL_IN_IND TYPE STRING,
ISO_SHELL TYPE STRING,
MULT_TAPE TYPE STRING,
ERDAT TYPE STRING,
ERZEIT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AEZEIT TYPE STRING,
AENAM TYPE STRING,
BLOIND TYPE STRING,
DELIND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIISOCO1_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_OIISOCO1_STR-MANDT sy-vline 
WA_OIISOCO1_STR-SOCNR sy-vline 
WA_OIISOCO1_STR-LVC_METH sy-vline 
WA_OIISOCO1_STR-CALI_HIST sy-vline 
WA_OIISOCO1_STR-SLVNR sy-vline 
WA_OIISOCO1_STR-SLVIND sy-vline 
WA_OIISOCO1_STR-VALFROM sy-vline 
WA_OIISOCO1_STR-MAXIN sy-vline 
WA_OIISOCO1_STR-MAXOUT sy-vline 
WA_OIISOCO1_STR-WASKZ sy-vline 
WA_OIISOCO1_STR-WASPC sy-vline 
WA_OIISOCO1_STR-GFLAG sy-vline 
WA_OIISOCO1_STR-HFLAG sy-vline 
WA_OIISOCO1_STR-AZEIT sy-vline 
WA_OIISOCO1_STR-EXPACORR sy-vline 
WA_OIISOCO1_STR-ROOFCORR sy-vline 
WA_OIISOCO1_STR-WATRCORR sy-vline 
WA_OIISOCO1_STR-UL_IN_IND sy-vline 
WA_OIISOCO1_STR-ISO_SHELL sy-vline 
WA_OIISOCO1_STR-MULT_TAPE sy-vline 
WA_OIISOCO1_STR-ERDAT sy-vline 
WA_OIISOCO1_STR-ERZEIT sy-vline 
WA_OIISOCO1_STR-ERNAM sy-vline 
WA_OIISOCO1_STR-AEDAT sy-vline 
WA_OIISOCO1_STR-AEZEIT sy-vline 
WA_OIISOCO1_STR-AENAM sy-vline 
WA_OIISOCO1_STR-BLOIND sy-vline 
WA_OIISOCO1_STR-DELIND sy-vline      INTO ld_text SEPARATED BY SPACE.

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