ABAP Select data from SAP table V_TCACS_OAWLD 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 V_TCACS_OAWLD 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 V_TCACS_OAWLD. 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 V_TCACS_OAWLD 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_V_TCACS_OAWLD TYPE STANDARD TABLE OF V_TCACS_OAWLD,
      WA_V_TCACS_OAWLD TYPE V_TCACS_OAWLD,
      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: <V_TCACS_OAWLD> TYPE V_TCACS_OAWLD.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TCACS_OAWLD
*  INTO TABLE @DATA(IT_V_TCACS_OAWLD2).
*--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_V_TCACS_OAWLD INDEX 1 INTO DATA(WA_V_TCACS_OAWLD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_TCACS_OAWLD ASSIGNING <V_TCACS_OAWLD>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TCACS_OAWLD>-MANDT = 1.
<V_TCACS_OAWLD>-OAWLDID = 1.
<V_TCACS_OAWLD>-OATYID = 1.
<V_TCACS_OAWLD>-IMPLCL = 1.
<V_TCACS_OAWLD>-OARUID = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TCACS_OAWLD-OSELSTRUCT, sy-vline,
WA_V_TCACS_OAWLD-OSELMETH, sy-vline,
WA_V_TCACS_OAWLD-OSELVAR, sy-vline,
WA_V_TCACS_OAWLD-MAXOBJCNT, sy-vline,
WA_V_TCACS_OAWLD-TSELSTRUCT, sy-vline,
WA_V_TCACS_OAWLD-TSELMETH, sy-vline.
ENDLOOP. *Add any further fields from structure WA_V_TCACS_OAWLD 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_V_TCACS_OAWLD 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_V_TCACS_OAWLD INTO WA_V_TCACS_OAWLD. *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_V_TCACS_OAWLD_STR,
MANDT TYPE STRING,
OAWLDID TYPE STRING,
OATYID TYPE STRING,
IMPLCL TYPE STRING,
OARUID TYPE STRING,
OSELSTRUCT TYPE STRING,
OSELMETH TYPE STRING,
OSELVAR TYPE STRING,
MAXOBJCNT TYPE STRING,
TSELSTRUCT TYPE STRING,
TSELMETH TYPE STRING,
TSELVAR TYPE STRING,
MAXTGTCNT TYPE STRING,
PARSTRUCT TYPE STRING,
PARMETH TYPE STRING,
PARVAR TYPE STRING,
CTXTSTRUCT TYPE STRING,
CTXTMETH TYPE STRING,
CTXTVAR TYPE STRING,
NRNR TYPE STRING,
OAMAXIND TYPE STRING,
DESCR TYPE STRING,END OF T_EKKO_STR. DATA: WA_V_TCACS_OAWLD_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_V_TCACS_OAWLD_STR-MANDT sy-vline
WA_V_TCACS_OAWLD_STR-OAWLDID sy-vline
WA_V_TCACS_OAWLD_STR-OATYID sy-vline
WA_V_TCACS_OAWLD_STR-IMPLCL sy-vline
WA_V_TCACS_OAWLD_STR-OARUID sy-vline
WA_V_TCACS_OAWLD_STR-OSELSTRUCT sy-vline
WA_V_TCACS_OAWLD_STR-OSELMETH sy-vline
WA_V_TCACS_OAWLD_STR-OSELVAR sy-vline
WA_V_TCACS_OAWLD_STR-MAXOBJCNT sy-vline
WA_V_TCACS_OAWLD_STR-TSELSTRUCT sy-vline
WA_V_TCACS_OAWLD_STR-TSELMETH sy-vline
WA_V_TCACS_OAWLD_STR-TSELVAR sy-vline
WA_V_TCACS_OAWLD_STR-MAXTGTCNT sy-vline
WA_V_TCACS_OAWLD_STR-PARSTRUCT sy-vline
WA_V_TCACS_OAWLD_STR-PARMETH sy-vline
WA_V_TCACS_OAWLD_STR-PARVAR sy-vline
WA_V_TCACS_OAWLD_STR-CTXTSTRUCT sy-vline
WA_V_TCACS_OAWLD_STR-CTXTMETH sy-vline
WA_V_TCACS_OAWLD_STR-CTXTVAR sy-vline
WA_V_TCACS_OAWLD_STR-NRNR sy-vline
WA_V_TCACS_OAWLD_STR-OAMAXIND sy-vline
WA_V_TCACS_OAWLD_STR-DESCR sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.