ABAP Select data from SAP table CREQTRACKSA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CREQTRACKSA
*  INTO TABLE @DATA(IT_CREQTRACKSA2).
*--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_CREQTRACKSA INDEX 1 INTO DATA(WA_CREQTRACKSA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CREQTRACKSA>-MANDT = 1.
<CREQTRACKSA>-SCHEDULINGAGREEMENT = 1.
<CREQTRACKSA>-SCHEDULINGAGREEMENTITEM = 1.
<CREQTRACKSA>-FORMATTEDPURCHASINGDOCITEM = 1.
<CREQTRACKSA>-DUEDATECRITICALITY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CREQTRACKSA-PURCONTRVALIDITYSTATUSNAME, sy-vline,
  WA_CREQTRACKSA-SUPPLIER, sy-vline,
  WA_CREQTRACKSA-VALIDITYENDDATE, sy-vline,
  WA_CREQTRACKSA-MATERIAL, sy-vline,
  WA_CREQTRACKSA-TARGETAMOUNT, sy-vline,
  WA_CREQTRACKSA-DOCUMENTCURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CREQTRACKSA 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_CREQTRACKSA 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_CREQTRACKSA INTO WA_CREQTRACKSA.


*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_CREQTRACKSA-SCHEDULINGAGREEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CREQTRACKSA-SCHEDULINGAGREEMENT.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit CUNIT, internal->external for field ORDERQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CREQTRACKSA-ORDERQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CREQTRACKSA-ORDERQUANTITYUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ORDERPRICEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CREQTRACKSA-ORDERPRICEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CREQTRACKSA-ORDERPRICEUNIT.
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_CREQTRACKSA_STR, 
MANDT TYPE STRING,
SCHEDULINGAGREEMENT TYPE STRING,
SCHEDULINGAGREEMENTITEM TYPE STRING,
FORMATTEDPURCHASINGDOCITEM TYPE STRING,
DUEDATECRITICALITY TYPE STRING,
PURCONTRVALIDITYSTATUSNAME TYPE STRING,
SUPPLIER TYPE STRING,
VALIDITYENDDATE TYPE STRING,
MATERIAL TYPE STRING,
TARGETAMOUNT TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGDOCUMENTTYPE TYPE STRING,
PURCHASINGDOCUMENTCATEGORY TYPE STRING,
COMPANYCODE TYPE STRING,
INCOTERMSCLASSIFICATION TYPE STRING,
PAYMENTTERMS TYPE STRING,
REQUIREMENTTRACKING TYPE STRING,
MATERIALGROUP TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PLANT TYPE STRING,
STORAGELOCATION TYPE STRING,
ACCOUNTASSIGNMENTCATEGORY TYPE STRING,
PURGDOCEXTERNALITEMCATEGORY TYPE STRING,
PURCHASINGDOCUMENTITEMCATEGORY TYPE STRING,
PURGDOCITEMCATEGORYNAME TYPE STRING,
PURCHASINGTEXT TYPE STRING,
PURCHASINGCATEGORY TYPE STRING,
PURGCATNAME TYPE STRING,
TARGETQUANTITY TYPE STRING,
ORDERQUANTITYUNIT TYPE STRING,
NETPRICEAMOUNT TYPE STRING,
NETPRICEQUANTITY TYPE STRING,
ORDERPRICEUNIT TYPE STRING,
FIRMTRADEOFFZONEBINDMRP TYPE STRING,
FIRMTRADEOFFZONEBINDMRPTEXT TYPE STRING,
SCHEDAGRMTCUMQTYRECONCILEDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CREQTRACKSA_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_CREQTRACKSA_STR-MANDT sy-vline 
WA_CREQTRACKSA_STR-SCHEDULINGAGREEMENT sy-vline 
WA_CREQTRACKSA_STR-SCHEDULINGAGREEMENTITEM sy-vline 
WA_CREQTRACKSA_STR-FORMATTEDPURCHASINGDOCITEM sy-vline 
WA_CREQTRACKSA_STR-DUEDATECRITICALITY sy-vline 
WA_CREQTRACKSA_STR-PURCONTRVALIDITYSTATUSNAME sy-vline 
WA_CREQTRACKSA_STR-SUPPLIER sy-vline 
WA_CREQTRACKSA_STR-VALIDITYENDDATE sy-vline 
WA_CREQTRACKSA_STR-MATERIAL sy-vline 
WA_CREQTRACKSA_STR-TARGETAMOUNT sy-vline 
WA_CREQTRACKSA_STR-DOCUMENTCURRENCY sy-vline 
WA_CREQTRACKSA_STR-VALIDITYSTARTDATE sy-vline 
WA_CREQTRACKSA_STR-PURCHASINGORGANIZATION sy-vline 
WA_CREQTRACKSA_STR-PURCHASINGDOCUMENTTYPE sy-vline 
WA_CREQTRACKSA_STR-PURCHASINGDOCUMENTCATEGORY sy-vline 
WA_CREQTRACKSA_STR-COMPANYCODE sy-vline 
WA_CREQTRACKSA_STR-INCOTERMSCLASSIFICATION sy-vline 
WA_CREQTRACKSA_STR-PAYMENTTERMS sy-vline 
WA_CREQTRACKSA_STR-REQUIREMENTTRACKING sy-vline 
WA_CREQTRACKSA_STR-MATERIALGROUP sy-vline 
WA_CREQTRACKSA_STR-PURCHASINGGROUP sy-vline 
WA_CREQTRACKSA_STR-PLANT sy-vline 
WA_CREQTRACKSA_STR-STORAGELOCATION sy-vline 
WA_CREQTRACKSA_STR-ACCOUNTASSIGNMENTCATEGORY sy-vline 
WA_CREQTRACKSA_STR-PURGDOCEXTERNALITEMCATEGORY sy-vline 
WA_CREQTRACKSA_STR-PURCHASINGDOCUMENTITEMCATEGORY sy-vline 
WA_CREQTRACKSA_STR-PURGDOCITEMCATEGORYNAME sy-vline 
WA_CREQTRACKSA_STR-PURCHASINGTEXT sy-vline 
WA_CREQTRACKSA_STR-PURCHASINGCATEGORY sy-vline 
WA_CREQTRACKSA_STR-PURGCATNAME sy-vline 
WA_CREQTRACKSA_STR-TARGETQUANTITY sy-vline 
WA_CREQTRACKSA_STR-ORDERQUANTITYUNIT sy-vline 
WA_CREQTRACKSA_STR-NETPRICEAMOUNT sy-vline 
WA_CREQTRACKSA_STR-NETPRICEQUANTITY sy-vline 
WA_CREQTRACKSA_STR-ORDERPRICEUNIT sy-vline 
WA_CREQTRACKSA_STR-FIRMTRADEOFFZONEBINDMRP sy-vline 
WA_CREQTRACKSA_STR-FIRMTRADEOFFZONEBINDMRPTEXT sy-vline 
WA_CREQTRACKSA_STR-SCHEDAGRMTCUMQTYRECONCILEDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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