ABAP Select data from SAP table OIJWL 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 OIJWL 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 OIJWL. 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 OIJWL 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_OIJWL TYPE STANDARD TABLE OF OIJWL,
      WA_OIJWL TYPE OIJWL,
      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: <OIJWL> TYPE OIJWL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIJWL
*  INTO TABLE @DATA(IT_OIJWL2).
*--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_OIJWL INDEX 1 INTO DATA(WA_OIJWL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_OIJWL ASSIGNING <OIJWL>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIJWL>-MANDT = 1.
<OIJWL>-WLITEM = 1.
<OIJWL>-WLRC = 1.
<OIJWL>-TSYST = 1.
<OIJWL>-LOCID = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIJWL-MATNR, sy-vline,
WA_OIJWL-NOMNR, sy-vline,
WA_OIJWL-NOMTK, sy-vline,
WA_OIJWL-NOMIT, sy-vline,
WA_OIJWL-PTSYST, sy-vline,
WA_OIJWL-PLOCID, sy-vline.
ENDLOOP. *Add any further fields from structure WA_OIJWL 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_OIJWL 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_OIJWL INTO WA_OIJWL. *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 MATN1, internal->external for field MATNR CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT' EXPORTING input = WA_OIJWL-MATNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_OIJWL-MATNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field TKONN CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_OIJWL-TKONN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_OIJWL-TKONN.
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_OIJWL_STR,
MANDT TYPE STRING,
WLITEM TYPE STRING,
WLRC TYPE STRING,
TSYST TYPE STRING,
LOCID TYPE STRING,
MATNR TYPE STRING,
NOMNR TYPE STRING,
NOMTK TYPE STRING,
NOMIT TYPE STRING,
PTSYST TYPE STRING,
PLOCID TYPE STRING,
DATUM TYPE STRING,
SITYP TYPE STRING,
TKONN TYPE STRING,
TPOSN TYPE STRING,
VBTYP TYPE STRING,
WARN TYPE STRING,
DELET 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,
TKTSELECT TYPE STRING,END OF T_EKKO_STR. DATA: WA_OIJWL_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_OIJWL_STR-MANDT sy-vline
WA_OIJWL_STR-WLITEM sy-vline
WA_OIJWL_STR-WLRC sy-vline
WA_OIJWL_STR-TSYST sy-vline
WA_OIJWL_STR-LOCID sy-vline
WA_OIJWL_STR-MATNR sy-vline
WA_OIJWL_STR-NOMNR sy-vline
WA_OIJWL_STR-NOMTK sy-vline
WA_OIJWL_STR-NOMIT sy-vline
WA_OIJWL_STR-PTSYST sy-vline
WA_OIJWL_STR-PLOCID sy-vline
WA_OIJWL_STR-DATUM sy-vline
WA_OIJWL_STR-SITYP sy-vline
WA_OIJWL_STR-TKONN sy-vline
WA_OIJWL_STR-TPOSN sy-vline
WA_OIJWL_STR-VBTYP sy-vline
WA_OIJWL_STR-WARN sy-vline
WA_OIJWL_STR-DELET sy-vline
WA_OIJWL_STR-ERDAT sy-vline
WA_OIJWL_STR-ERZEIT sy-vline
WA_OIJWL_STR-ERNAM sy-vline
WA_OIJWL_STR-AEDAT sy-vline
WA_OIJWL_STR-AEZEIT sy-vline
WA_OIJWL_STR-AENAM sy-vline
WA_OIJWL_STR-BLOIND sy-vline
WA_OIJWL_STR-DELIND sy-vline
WA_OIJWL_STR-TKTSELECT sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.