ABAP Select data from SAP table MSCAH 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 MSCAH 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 MSCAH. 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 MSCAH 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_MSCAH TYPE STANDARD TABLE OF MSCAH, WA_MSCAH TYPE MSCAH, 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: <MSCAH> TYPE MSCAH. *Process all fields in table header/work area as string values PERFORM process_as_string_field_values CHANGING wa_MSCAH. SELECT * *restrict ABAP select to first 10 rows UP TO 10 ROWS FROM MSCAH INTO TABLE IT_MSCAH. *Select data and declare internal table using in-line method @DATA *SELECT * * FROM MSCAH * INTO TABLE @DATA(IT_MSCAH2). *--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_MSCAH INDEX 1 INTO DATA(WA_MSCAH2). *Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL LOOP AT IT_MSCAH ASSIGNING <MSCAH>.*To update a field value using a field symbol simply change the value via the field symbol pointer
<MSCAH>-MANDT = 1.
<MSCAH>-MATNR = 1.
<MSCAH>-WERKS = 1.
<MSCAH>-CHARG = 1.
<MSCAH>-LIFNR = 1.
ENDLOOP. LOOP AT IT_MSCAH INTO WA_MSCAH. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_MSCAH-SOBKZ, sy-vline,
WA_MSCAH-VBELN, sy-vline,
WA_MSCAH-POSNR, sy-vline,
WA_MSCAH-LFGJA, sy-vline,
WA_MSCAH-LFMON, sy-vline,
WA_MSCAH-CALAB, sy-vline.
ENDLOOP. *Add any further fields from structure WA_MSCAH 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_MSCAH 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_MSCAH INTO WA_MSCAH. *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_MSCAH-MATNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_MSCAH-MATNR.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field LIFNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_MSCAH-LIFNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_MSCAH-LIFNR.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field VBELN CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_MSCAH-VBELN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_MSCAH-VBELN.
WRITE:/ 'New Value:', ld_input.
*Conversion exit GJAHR, internal->external for field LFGJA CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT' EXPORTING input = WA_MSCAH-LFGJA IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_MSCAH-LFGJA.
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_MSCAH_STR,
MANDT TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
CHARG TYPE STRING,
LIFNR TYPE STRING,
SOBKZ TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
LFGJA TYPE STRING,
LFMON TYPE STRING,
CALAB TYPE STRING,
CAINS TYPE STRING,
CASPE TYPE STRING,END OF T_EKKO_STR. DATA: WA_MSCAH_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_MSCAH_STR-MANDT sy-vline
WA_MSCAH_STR-MATNR sy-vline
WA_MSCAH_STR-WERKS sy-vline
WA_MSCAH_STR-CHARG sy-vline
WA_MSCAH_STR-LIFNR sy-vline
WA_MSCAH_STR-SOBKZ sy-vline
WA_MSCAH_STR-VBELN sy-vline
WA_MSCAH_STR-POSNR sy-vline
WA_MSCAH_STR-LFGJA sy-vline
WA_MSCAH_STR-LFMON sy-vline
WA_MSCAH_STR-CALAB sy-vline
WA_MSCAH_STR-CAINS sy-vline
WA_MSCAH_STR-CASPE sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.