ABAP Select data from SAP table OIK37 into internal table

Get Example source ABAP code based on a different SAP table
  

Below is a number of ABAP code snippets to demonstrate how to select data from SAP OIK37 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 OIK37. 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 OIK37 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_OIK37 TYPE STANDARD TABLE OF OIK37,
      WA_OIK37 TYPE OIK37,
      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: <OIK37> TYPE OIK37.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_OIK37.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM OIK37
  INTO TABLE IT_OIK37.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIK37
*  INTO TABLE @DATA(IT_OIK372).
*--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_OIK37 INDEX 1 INTO DATA(WA_OIK372).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_OIK37 ASSIGNING <OIK37>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIK37>-MANDT = 1.
<OIK37>-VBTYP = 1.
<OIK37>-VBELN = 1.
<OIK37>-POSNR = 1.
<OIK37>-COUNTER = 1.
ENDLOOP.

LOOP AT IT_OIK37 INTO WA_OIK37.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIK37-APPLIC, sy-vline,
WA_OIK37-SOCNR, sy-vline,
WA_OIK37-SOCAM, sy-vline,
WA_OIK37-OWNOBJ, sy-vline,
WA_OIK37-SUBOBJ, sy-vline,
WA_OIK37-SHNUMBER, sy-vline.
ENDLOOP. *Add any further fields from structure WA_OIK37 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_OIK37 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_OIK37 INTO WA_OIK37. *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 ALPHA, internal->external for field VBELN CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_OIK37-VBELN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_OIK37-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SHNUMBER CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_OIK37-SHNUMBER IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_OIK37-SHNUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEDST CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_OIK37-MEDST IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_OIK37-MEDST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EXT_DOC_NR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_OIK37-EXT_DOC_NR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_OIK37-EXT_DOC_NR.
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_OIK37_STR,
MANDT TYPE STRING,
VBTYP TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
COUNTER TYPE STRING,
APPLIC TYPE STRING,
SOCNR TYPE STRING,
SOCAM TYPE STRING,
OWNOBJ TYPE STRING,
SUBOBJ TYPE STRING,
SHNUMBER TYPE STRING,
DISTZ TYPE STRING,
MEDST TYPE STRING,
SHIFT_STDT TYPE STRING,
ETA TYPE STRING,
EDA TYPE STRING,
EXT_DOC_NR TYPE STRING,
TIME_FRAME TYPE STRING,
FROMTIME TYPE STRING,
TOTIME TYPE STRING,
TZONE TYPE STRING,
TF_DATE TYPE STRING,
INVERT TYPE STRING,
INCLOSE TYPE STRING,
TO_DATE TYPE STRING,
FROMDATE TYPE STRING,
TIME_WIND TYPE STRING,
TODATE TYPE STRING,END OF T_EKKO_STR. DATA: WA_OIK37_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_OIK37_STR-MANDT sy-vline
WA_OIK37_STR-VBTYP sy-vline
WA_OIK37_STR-VBELN sy-vline
WA_OIK37_STR-POSNR sy-vline
WA_OIK37_STR-COUNTER sy-vline
WA_OIK37_STR-APPLIC sy-vline
WA_OIK37_STR-SOCNR sy-vline
WA_OIK37_STR-SOCAM sy-vline
WA_OIK37_STR-OWNOBJ sy-vline
WA_OIK37_STR-SUBOBJ sy-vline
WA_OIK37_STR-SHNUMBER sy-vline
WA_OIK37_STR-DISTZ sy-vline
WA_OIK37_STR-MEDST sy-vline
WA_OIK37_STR-SHIFT_STDT sy-vline
WA_OIK37_STR-ETA sy-vline
WA_OIK37_STR-EDA sy-vline
WA_OIK37_STR-EXT_DOC_NR sy-vline
WA_OIK37_STR-TIME_FRAME sy-vline
WA_OIK37_STR-FROMTIME sy-vline
WA_OIK37_STR-TOTIME sy-vline
WA_OIK37_STR-TZONE sy-vline
WA_OIK37_STR-TF_DATE sy-vline
WA_OIK37_STR-INVERT sy-vline
WA_OIK37_STR-INCLOSE sy-vline
WA_OIK37_STR-TO_DATE sy-vline
WA_OIK37_STR-FROMDATE sy-vline
WA_OIK37_STR-TIME_WIND sy-vline
WA_OIK37_STR-TODATE sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.