ABAP Select data from SAP table CQLTYLVLHIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CQLTYLVLHIST
*  INTO TABLE @DATA(IT_CQLTYLVLHIST2).
*--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_CQLTYLVLHIST INDEX 1 INTO DATA(WA_CQLTYLVLHIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CQLTYLVLHIST>-MANDT = 1.
<CQLTYLVLHIST>-MATERIAL = 1.
<CQLTYLVLHIST>-PLANT = 1.
<CQLTYLVLHIST>-BOOOPERATIONINTERNALID = 1.
<CQLTYLVLHIST>-BILLOFOPERATIONSVARIANT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CQLTYLVLHIST-BILLOFOPERATIONSTYPE, sy-vline,
  WA_CQLTYLVLHIST-BILLOFOPERATIONSGROUP, sy-vline,
  WA_CQLTYLVLHIST-QUALITYLEVELINTERNALID, sy-vline,
  WA_CQLTYLVLHIST-SEQUENCE, sy-vline,
  WA_CQLTYLVLHIST-INSPECTIONLOT, sy-vline,
  WA_CQLTYLVLHIST-INSPECTIONCHARACTERISTIC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CQLTYLVLHIST 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_CQLTYLVLHIST 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_CQLTYLVLHIST INTO WA_CQLTYLVLHIST.


*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 MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CQLTYLVLHIST-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CQLTYLVLHIST-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field INSPECTIONLOTSAMPLEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CQLTYLVLHIST-INSPECTIONLOTSAMPLEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CQLTYLVLHIST-INSPECTIONLOTSAMPLEUNIT.
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_CQLTYLVLHIST_STR, 
MANDT TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
BOOOPERATIONINTERNALID TYPE STRING,
BILLOFOPERATIONSVARIANT TYPE STRING,
BILLOFOPERATIONSTYPE TYPE STRING,
BILLOFOPERATIONSGROUP TYPE STRING,
QUALITYLEVELINTERNALID TYPE STRING,
SEQUENCE TYPE STRING,
INSPECTIONLOT TYPE STRING,
INSPECTIONCHARACTERISTIC TYPE STRING,
SUPPLIER TYPE STRING,
CUSTOMER TYPE STRING,
MANUFACTURER TYPE STRING,
INSPECTIONLOTCREATEDONTIME TYPE STRING,
INSPECTIONLOTCREATEDON TYPE STRING,
INSPECTIONLOTTYPE TYPE STRING,
INSPECTIONLOTTYPETEXT TYPE STRING,
MATLQUALITYAUTHORIZATIONGROUP TYPE STRING,
ISBUSINESSPURPOSECOMPLETED TYPE STRING,
INSPLOTDYNAMICRULE TYPE STRING,
INSPLOTDYNRULESTAGETEXT TYPE STRING,
INSPECTIONDYNAMICSTAGE TYPE STRING,
INSPLOTDYNRULESKIPSTAGE TYPE STRING,
INSPECTIONLOTDYNAMICLEVEL TYPE STRING,
INSPECTIONLOTQUANTITY TYPE STRING,
INSPECTIONLOTQUANTITYUNIT TYPE STRING,
INSPECTIONLOTSAMPLEQUANTITY TYPE STRING,
INSPECTIONLOTSAMPLEUNIT TYPE STRING,
INSPECTIONLOTISSKIPPED TYPE STRING,
ISINSPECTIONLOTSKIPPEDTEXT TYPE STRING,
INSPECTIONLOTUSAGEDECISIONCODE TYPE STRING,
USAGEDECISIONCODETEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CQLTYLVLHIST_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_CQLTYLVLHIST_STR-MANDT sy-vline 
WA_CQLTYLVLHIST_STR-MATERIAL sy-vline 
WA_CQLTYLVLHIST_STR-PLANT sy-vline 
WA_CQLTYLVLHIST_STR-BOOOPERATIONINTERNALID sy-vline 
WA_CQLTYLVLHIST_STR-BILLOFOPERATIONSVARIANT sy-vline 
WA_CQLTYLVLHIST_STR-BILLOFOPERATIONSTYPE sy-vline 
WA_CQLTYLVLHIST_STR-BILLOFOPERATIONSGROUP sy-vline 
WA_CQLTYLVLHIST_STR-QUALITYLEVELINTERNALID sy-vline 
WA_CQLTYLVLHIST_STR-SEQUENCE sy-vline 
WA_CQLTYLVLHIST_STR-INSPECTIONLOT sy-vline 
WA_CQLTYLVLHIST_STR-INSPECTIONCHARACTERISTIC sy-vline 
WA_CQLTYLVLHIST_STR-SUPPLIER sy-vline 
WA_CQLTYLVLHIST_STR-CUSTOMER sy-vline 
WA_CQLTYLVLHIST_STR-MANUFACTURER sy-vline 
WA_CQLTYLVLHIST_STR-INSPECTIONLOTCREATEDONTIME sy-vline 
WA_CQLTYLVLHIST_STR-INSPECTIONLOTCREATEDON sy-vline 
WA_CQLTYLVLHIST_STR-INSPECTIONLOTTYPE sy-vline 
WA_CQLTYLVLHIST_STR-INSPECTIONLOTTYPETEXT sy-vline 
WA_CQLTYLVLHIST_STR-MATLQUALITYAUTHORIZATIONGROUP sy-vline 
WA_CQLTYLVLHIST_STR-ISBUSINESSPURPOSECOMPLETED sy-vline 
WA_CQLTYLVLHIST_STR-INSPLOTDYNAMICRULE sy-vline 
WA_CQLTYLVLHIST_STR-INSPLOTDYNRULESTAGETEXT sy-vline 
WA_CQLTYLVLHIST_STR-INSPECTIONDYNAMICSTAGE sy-vline 
WA_CQLTYLVLHIST_STR-INSPLOTDYNRULESKIPSTAGE sy-vline 
WA_CQLTYLVLHIST_STR-INSPECTIONLOTDYNAMICLEVEL sy-vline 
WA_CQLTYLVLHIST_STR-INSPECTIONLOTQUANTITY sy-vline 
WA_CQLTYLVLHIST_STR-INSPECTIONLOTQUANTITYUNIT sy-vline 
WA_CQLTYLVLHIST_STR-INSPECTIONLOTSAMPLEQUANTITY sy-vline 
WA_CQLTYLVLHIST_STR-INSPECTIONLOTSAMPLEUNIT sy-vline 
WA_CQLTYLVLHIST_STR-INSPECTIONLOTISSKIPPED sy-vline 
WA_CQLTYLVLHIST_STR-ISINSPECTIONLOTSKIPPEDTEXT sy-vline 
WA_CQLTYLVLHIST_STR-INSPECTIONLOTUSAGEDECISIONCODE sy-vline 
WA_CQLTYLVLHIST_STR-USAGEDECISIONCODETEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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