ABAP Select data from SAP table CMMSCHDAGMTMNTR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CMMSCHDAGMTMNTR 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 CMMSCHDAGMTMNTR. 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 CMMSCHDAGMTMNTR 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_CMMSCHDAGMTMNTR TYPE STANDARD TABLE OF CMMSCHDAGMTMNTR,
      WA_CMMSCHDAGMTMNTR TYPE CMMSCHDAGMTMNTR,
      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: <CMMSCHDAGMTMNTR> TYPE CMMSCHDAGMTMNTR.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMMSCHDAGMTMNTR
*  INTO TABLE @DATA(IT_CMMSCHDAGMTMNTR2).
*--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_CMMSCHDAGMTMNTR INDEX 1 INTO DATA(WA_CMMSCHDAGMTMNTR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CMMSCHDAGMTMNTR ASSIGNING <CMMSCHDAGMTMNTR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMMSCHDAGMTMNTR>-MANDT = 1.
<CMMSCHDAGMTMNTR>-SCHEDULINGAGREEMENT = 1.
<CMMSCHDAGMTMNTR>-SCHEDULINGAGREEMENTITEM = 1.
<CMMSCHDAGMTMNTR>-COMPANYCODE = 1.
<CMMSCHDAGMTMNTR>-MATERIAL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMMSCHDAGMTMNTR-MATERIALNAME, sy-vline,
  WA_CMMSCHDAGMTMNTR-MATERIALGROUP, sy-vline,
  WA_CMMSCHDAGMTMNTR-MATERIALGROUPNAME, sy-vline,
  WA_CMMSCHDAGMTMNTR-SUPPLIER, sy-vline,
  WA_CMMSCHDAGMTMNTR-SUPPLIERNAME, sy-vline,
  WA_CMMSCHDAGMTMNTR-PLANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMMSCHDAGMTMNTR 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_CMMSCHDAGMTMNTR 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_CMMSCHDAGMTMNTR INTO WA_CMMSCHDAGMTMNTR.


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

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CMMSCHDAGMTMNTR-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMSCHDAGMTMNTR-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field ORDERQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CMMSCHDAGMTMNTR-ORDERQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMSCHDAGMTMNTR-ORDERQUANTITYUNIT.
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_CMMSCHDAGMTMNTR_STR, 
MANDT TYPE STRING,
SCHEDULINGAGREEMENT TYPE STRING,
SCHEDULINGAGREEMENTITEM TYPE STRING,
COMPANYCODE TYPE STRING,
MATERIAL TYPE STRING,
MATERIALNAME TYPE STRING,
MATERIALGROUP TYPE STRING,
MATERIALGROUPNAME TYPE STRING,
SUPPLIER TYPE STRING,
SUPPLIERNAME TYPE STRING,
PLANT TYPE STRING,
PLANTNAME TYPE STRING,
STORAGELOCATION TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGORGANIZATIONNAME TYPE STRING,
PURCHASINGDOCUMENTTYPE TYPE STRING,
PURCHASINGDOCUMENTTYPENAME TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PURCHASINGGROUPNAME TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
PURCHASINGDOCUMENTORDERDATE TYPE STRING,
PURCHASINGDOCUMENTCATEGORY TYPE STRING,
NUMBEROFSCHEDGAGRMTITEMS TYPE STRING,
SCHEDAGRMTVALIDITYSTATUS TYPE STRING,
PURCONTRVALIDITYSTATUSNAME TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
VALIDITYENDDATE TYPE STRING,
SCHEDGAGREEMENTITEMNEXTRELDATE TYPE STRING,
SCHEDULELINEDELIVERYDATE TYPE STRING,
SCHEDULINGAGREEMENTRELEASE TYPE STRING,
SCHEDAGRMTITEMISOVERDUE TYPE STRING,
SCHEDGAGRMTOVERDUESTSNAME TYPE STRING,
SCHEDAGRMTITMINAPPRVLSTS TYPE STRING,
SCHEDAGRMTITMINAPPRVLSTSNAME TYPE STRING,
ORDERQUANTITYUNIT TYPE STRING,
TARGETQUANTITY TYPE STRING,
SCHEDGAGRMTITMNEXTDELIVQTY TYPE STRING,
SCHEDGAGRMTITMOVERDUEQTY TYPE STRING,
SCHEDGAGRMTITMDUEDELIVERYQTY TYPE STRING,
INVOICERECEIPTQTY TYPE STRING,
GOODSRECEIPTQTY TYPE STRING,
STILLTOBEDELIVEREDQUANTITY TYPE STRING,
STILLTOINVOICEQUANTITY TYPE STRING,
DISPLAYCURRENCY TYPE STRING,
TARGETAMOUNT TYPE STRING,
SCHEDULINGAGREEMENTSPEND TYPE STRING,
GOODSRECEIPTAMOUNTINDSPCRCY TYPE STRING,
INVOICEAMTINDISPLAYCURRENCY TYPE STRING,
SCHEDGAGRMTTOBEDLVRDAMT TYPE STRING,
SCHEDGAGRMTTOBEINVCAMT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMMSCHDAGMTMNTR_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_CMMSCHDAGMTMNTR_STR-MANDT sy-vline 
WA_CMMSCHDAGMTMNTR_STR-SCHEDULINGAGREEMENT sy-vline 
WA_CMMSCHDAGMTMNTR_STR-SCHEDULINGAGREEMENTITEM sy-vline 
WA_CMMSCHDAGMTMNTR_STR-COMPANYCODE sy-vline 
WA_CMMSCHDAGMTMNTR_STR-MATERIAL sy-vline 
WA_CMMSCHDAGMTMNTR_STR-MATERIALNAME sy-vline 
WA_CMMSCHDAGMTMNTR_STR-MATERIALGROUP sy-vline 
WA_CMMSCHDAGMTMNTR_STR-MATERIALGROUPNAME sy-vline 
WA_CMMSCHDAGMTMNTR_STR-SUPPLIER sy-vline 
WA_CMMSCHDAGMTMNTR_STR-SUPPLIERNAME sy-vline 
WA_CMMSCHDAGMTMNTR_STR-PLANT sy-vline 
WA_CMMSCHDAGMTMNTR_STR-PLANTNAME sy-vline 
WA_CMMSCHDAGMTMNTR_STR-STORAGELOCATION sy-vline 
WA_CMMSCHDAGMTMNTR_STR-PURCHASINGORGANIZATION sy-vline 
WA_CMMSCHDAGMTMNTR_STR-PURCHASINGORGANIZATIONNAME sy-vline 
WA_CMMSCHDAGMTMNTR_STR-PURCHASINGDOCUMENTTYPE sy-vline 
WA_CMMSCHDAGMTMNTR_STR-PURCHASINGDOCUMENTTYPENAME sy-vline 
WA_CMMSCHDAGMTMNTR_STR-PURCHASINGGROUP sy-vline 
WA_CMMSCHDAGMTMNTR_STR-PURCHASINGGROUPNAME sy-vline 
WA_CMMSCHDAGMTMNTR_STR-DOCUMENTCURRENCY sy-vline 
WA_CMMSCHDAGMTMNTR_STR-PURCHASINGDOCUMENTORDERDATE sy-vline 
WA_CMMSCHDAGMTMNTR_STR-PURCHASINGDOCUMENTCATEGORY sy-vline 
WA_CMMSCHDAGMTMNTR_STR-NUMBEROFSCHEDGAGRMTITEMS sy-vline 
WA_CMMSCHDAGMTMNTR_STR-SCHEDAGRMTVALIDITYSTATUS sy-vline 
WA_CMMSCHDAGMTMNTR_STR-PURCONTRVALIDITYSTATUSNAME sy-vline 
WA_CMMSCHDAGMTMNTR_STR-VALIDITYSTARTDATE sy-vline 
WA_CMMSCHDAGMTMNTR_STR-VALIDITYENDDATE sy-vline 
WA_CMMSCHDAGMTMNTR_STR-SCHEDGAGREEMENTITEMNEXTRELDATE sy-vline 
WA_CMMSCHDAGMTMNTR_STR-SCHEDULELINEDELIVERYDATE sy-vline 
WA_CMMSCHDAGMTMNTR_STR-SCHEDULINGAGREEMENTRELEASE sy-vline 
WA_CMMSCHDAGMTMNTR_STR-SCHEDAGRMTITEMISOVERDUE sy-vline 
WA_CMMSCHDAGMTMNTR_STR-SCHEDGAGRMTOVERDUESTSNAME sy-vline 
WA_CMMSCHDAGMTMNTR_STR-SCHEDAGRMTITMINAPPRVLSTS sy-vline 
WA_CMMSCHDAGMTMNTR_STR-SCHEDAGRMTITMINAPPRVLSTSNAME sy-vline 
WA_CMMSCHDAGMTMNTR_STR-ORDERQUANTITYUNIT sy-vline 
WA_CMMSCHDAGMTMNTR_STR-TARGETQUANTITY sy-vline 
WA_CMMSCHDAGMTMNTR_STR-SCHEDGAGRMTITMNEXTDELIVQTY sy-vline 
WA_CMMSCHDAGMTMNTR_STR-SCHEDGAGRMTITMOVERDUEQTY sy-vline 
WA_CMMSCHDAGMTMNTR_STR-SCHEDGAGRMTITMDUEDELIVERYQTY sy-vline 
WA_CMMSCHDAGMTMNTR_STR-INVOICERECEIPTQTY sy-vline 
WA_CMMSCHDAGMTMNTR_STR-GOODSRECEIPTQTY sy-vline 
WA_CMMSCHDAGMTMNTR_STR-STILLTOBEDELIVEREDQUANTITY sy-vline 
WA_CMMSCHDAGMTMNTR_STR-STILLTOINVOICEQUANTITY sy-vline 
WA_CMMSCHDAGMTMNTR_STR-DISPLAYCURRENCY sy-vline 
WA_CMMSCHDAGMTMNTR_STR-TARGETAMOUNT sy-vline 
WA_CMMSCHDAGMTMNTR_STR-SCHEDULINGAGREEMENTSPEND sy-vline 
WA_CMMSCHDAGMTMNTR_STR-GOODSRECEIPTAMOUNTINDSPCRCY sy-vline 
WA_CMMSCHDAGMTMNTR_STR-INVOICEAMTINDISPLAYCURRENCY sy-vline 
WA_CMMSCHDAGMTMNTR_STR-SCHEDGAGRMTTOBEDLVRDAMT sy-vline 
WA_CMMSCHDAGMTMNTR_STR-SCHEDGAGRMTTOBEINVCAMT sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.