ABAP Select data from SAP table V_TMCPF 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_TMCPF 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_TMCPF. 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_TMCPF 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_TMCPF TYPE STANDARD TABLE OF V_TMCPF,
      WA_V_TMCPF TYPE V_TMCPF,
      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_TMCPF> TYPE V_TMCPF.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TMCPF
*  INTO TABLE @DATA(IT_V_TMCPF2).
*--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_TMCPF INDEX 1 INTO DATA(WA_V_TMCPF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_TMCPF ASSIGNING <V_TMCPF>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TMCPF>-MANDT = 1.
<V_TMCPF>-LFARN = 1.
<V_TMCPF>-LFARV = 1.
<V_TMCPF>-BOART = 1.
<V_TMCPF>-LFTYPV = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TMCPF-KNPRS, sy-vline,
WA_V_TMCPF-POSVO, sy-vline,
WA_V_TMCPF-PDKUR, sy-vline,
WA_V_TMCPF-VTEXT, sy-vline,
WA_V_TMCPF-WZKUR, sy-vline,
WA_V_TMCPF-PDKUR_COPY, sy-vline.
ENDLOOP. *Add any further fields from structure WA_V_TMCPF 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_TMCPF 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_TMCPF INTO WA_V_TMCPF. *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_TMCPF_STR,
MANDT TYPE STRING,
LFARN TYPE STRING,
LFARV TYPE STRING,
BOART TYPE STRING,
LFTYPV TYPE STRING,
KNPRS TYPE STRING,
POSVO TYPE STRING,
PDKUR TYPE STRING,
VTEXT TYPE STRING,
WZKUR TYPE STRING,
PDKUR_COPY TYPE STRING,
POST_RULE_COPY TYPE STRING,
ABART_COPY TYPE STRING,
POST_DATE_CON TYPE STRING,
KALSM_COPY TYPE STRING,
STCEG_FOLLOW_DOC TYPE STRING,
PARTNER_COPY TYPE STRING,
MNDID_AT_COPY TYPE STRING,
KSTEU_LFAKS TYPE STRING,
KSTEU_ADJUST TYPE STRING,
TXKRS_COPY TYPE STRING,END OF T_EKKO_STR. DATA: WA_V_TMCPF_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_TMCPF_STR-MANDT sy-vline
WA_V_TMCPF_STR-LFARN sy-vline
WA_V_TMCPF_STR-LFARV sy-vline
WA_V_TMCPF_STR-BOART sy-vline
WA_V_TMCPF_STR-LFTYPV sy-vline
WA_V_TMCPF_STR-KNPRS sy-vline
WA_V_TMCPF_STR-POSVO sy-vline
WA_V_TMCPF_STR-PDKUR sy-vline
WA_V_TMCPF_STR-VTEXT sy-vline
WA_V_TMCPF_STR-WZKUR sy-vline
WA_V_TMCPF_STR-PDKUR_COPY sy-vline
WA_V_TMCPF_STR-POST_RULE_COPY sy-vline
WA_V_TMCPF_STR-ABART_COPY sy-vline
WA_V_TMCPF_STR-POST_DATE_CON sy-vline
WA_V_TMCPF_STR-KALSM_COPY sy-vline
WA_V_TMCPF_STR-STCEG_FOLLOW_DOC sy-vline
WA_V_TMCPF_STR-PARTNER_COPY sy-vline
WA_V_TMCPF_STR-MNDID_AT_COPY sy-vline
WA_V_TMCPF_STR-KSTEU_LFAKS sy-vline
WA_V_TMCPF_STR-KSTEU_ADJUST sy-vline
WA_V_TMCPF_STR-TXKRS_COPY sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.