ABAP Select data from SAP table SHSMMCH1A 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 SHSMMCH1A 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 SHSMMCH1A. 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 SHSMMCH1A 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_SHSMMCH1A TYPE STANDARD TABLE OF SHSMMCH1A,
      WA_SHSMMCH1A TYPE SHSMMCH1A,
      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: <SHSMMCH1A> TYPE SHSMMCH1A.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_SHSMMCH1A.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM SHSMMCH1A
  INTO TABLE IT_SHSMMCH1A.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SHSMMCH1A
*  INTO TABLE @DATA(IT_SHSMMCH1A2).
*--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_SHSMMCH1A INDEX 1 INTO DATA(WA_SHSMMCH1A2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_SHSMMCH1A ASSIGNING <SHSMMCH1A>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<SHSMMCH1A>-MANDT = 1.
<SHSMMCH1A>-MATNR = 1.
<SHSMMCH1A>-CHARG = 1.
<SHSMMCH1A>-ERSDA = 1.
<SHSMMCH1A>-ERNAM = 1.
ENDLOOP.

LOOP AT IT_SHSMMCH1A INTO WA_SHSMMCH1A.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SHSMMCH1A-AENAM, sy-vline,
WA_SHSMMCH1A-LAEDA, sy-vline,
WA_SHSMMCH1A-VERAB, sy-vline,
WA_SHSMMCH1A-VFDAT, sy-vline,
WA_SHSMMCH1A-ZUSTD, sy-vline,
WA_SHSMMCH1A-LIFNR, sy-vline.
ENDLOOP. *Add any further fields from structure WA_SHSMMCH1A 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_SHSMMCH1A 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_SHSMMCH1A INTO WA_SHSMMCH1A. *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_SHSMMCH1A-MATNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_SHSMMCH1A-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_SHSMMCH1A-LIFNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_SHSMMCH1A-LIFNR.
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_SHSMMCH1A_STR,
MANDT TYPE STRING,
MATNR TYPE STRING,
CHARG TYPE STRING,
ERSDA TYPE STRING,
ERNAM TYPE STRING,
AENAM TYPE STRING,
LAEDA TYPE STRING,
VERAB TYPE STRING,
VFDAT TYPE STRING,
ZUSTD TYPE STRING,
LIFNR TYPE STRING,
LICHA TYPE STRING,
LVORM TYPE STRING,
LWEDT TYPE STRING,
HERKL TYPE STRING,
HERKR TYPE STRING,
MTVER TYPE STRING,
QNDAT TYPE STRING,
HSDAT TYPE STRING,
ZFDAT TYPE STRING,
DEACT_BM TYPE STRING,
BATCH_TYPE TYPE STRING,
BWTAR TYPE STRING,
WERKS TYPE STRING,
BEGRU TYPE STRING,END OF T_EKKO_STR. DATA: WA_SHSMMCH1A_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_SHSMMCH1A_STR-MANDT sy-vline
WA_SHSMMCH1A_STR-MATNR sy-vline
WA_SHSMMCH1A_STR-CHARG sy-vline
WA_SHSMMCH1A_STR-ERSDA sy-vline
WA_SHSMMCH1A_STR-ERNAM sy-vline
WA_SHSMMCH1A_STR-AENAM sy-vline
WA_SHSMMCH1A_STR-LAEDA sy-vline
WA_SHSMMCH1A_STR-VERAB sy-vline
WA_SHSMMCH1A_STR-VFDAT sy-vline
WA_SHSMMCH1A_STR-ZUSTD sy-vline
WA_SHSMMCH1A_STR-LIFNR sy-vline
WA_SHSMMCH1A_STR-LICHA sy-vline
WA_SHSMMCH1A_STR-LVORM sy-vline
WA_SHSMMCH1A_STR-LWEDT sy-vline
WA_SHSMMCH1A_STR-HERKL sy-vline
WA_SHSMMCH1A_STR-HERKR sy-vline
WA_SHSMMCH1A_STR-MTVER sy-vline
WA_SHSMMCH1A_STR-QNDAT sy-vline
WA_SHSMMCH1A_STR-HSDAT sy-vline
WA_SHSMMCH1A_STR-ZFDAT sy-vline
WA_SHSMMCH1A_STR-DEACT_BM sy-vline
WA_SHSMMCH1A_STR-BATCH_TYPE sy-vline
WA_SHSMMCH1A_STR-BWTAR sy-vline
WA_SHSMMCH1A_STR-WERKS sy-vline
WA_SHSMMCH1A_STR-BEGRU sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.