ABAP Select data from SAP table REQLINESR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REQLINESR
*  INTO TABLE @DATA(IT_REQLINESR2).
*--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_REQLINESR INDEX 1 INTO DATA(WA_REQLINESR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REQLINESR>-CLIENT = 1.
<REQLINESR>-REQNO = 1.
<REQLINESR>-REQSLINE = 1.
<REQLINESR>-REQLLINE = 1.
<REQLINESR>-PCKG_NO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REQLINESR-OUTL_LEVEL, sy-vline,
  WA_REQLINESR-OUTL_NO, sy-vline,
  WA_REQLINESR-OUTL_IND, sy-vline,
  WA_REQLINESR-SUBPCKG_NO, sy-vline,
  WA_REQLINESR-SERVICE, sy-vline,
  WA_REQLINESR-SERV_TYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REQLINESR 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_REQLINESR 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_REQLINESR INTO WA_REQLINESR.


*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 REQNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REQLINESR-REQNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REQLINESR-REQNO.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field LOGSYS_FI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REQLINESR-LOGSYS_FI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REQLINESR-LOGSYS_FI.
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_REQLINESR_STR, 
CLIENT TYPE STRING,
REQNO TYPE STRING,
REQSLINE TYPE STRING,
REQLLINE TYPE STRING,
PCKG_NO TYPE STRING,
OUTL_LEVEL TYPE STRING,
OUTL_NO TYPE STRING,
OUTL_IND TYPE STRING,
SUBPCKG_NO TYPE STRING,
SERVICE TYPE STRING,
SERV_TYPE TYPE STRING,
EDITION TYPE STRING,
SSC_ITEM TYPE STRING,
EXT_SERV TYPE STRING,
QUANTITY TYPE STRING,
BASE_UOM TYPE STRING,
UOM_ISO TYPE STRING,
OVF_TOL TYPE STRING,
OVF_UNLIM TYPE STRING,
PRICE_UNIT TYPE STRING,
GR_PRICE TYPE STRING,
FROM_LINE TYPE STRING,
TO_LINE TYPE STRING,
SHORT_TEXT TYPE STRING,
DISTRIB TYPE STRING,
PERS_NO TYPE STRING,
WAGETYPE TYPE STRING,
PLN_PCKG TYPE STRING,
PLN_LINE TYPE STRING,
CON_PCKG TYPE STRING,
CON_LINE TYPE STRING,
TMP_PCKG TYPE STRING,
TMP_LINE TYPE STRING,
SSC_LIM TYPE STRING,
LIMIT_LINE TYPE STRING,
TARGET_VAL TYPE STRING,
BASLINE_NO TYPE STRING,
BASIC_LINE TYPE STRING,
ALTERNAT TYPE STRING,
BIDDER TYPE STRING,
SUPP_LINE TYPE STRING,
OPEN_QTY TYPE STRING,
INFORM TYPE STRING,
BLANKET TYPE STRING,
EVENTUAL TYPE STRING,
TAX_CODE TYPE STRING,
TAXJURCODE TYPE STRING,
PRICE_CHG TYPE STRING,
MATL_GROUP TYPE STRING,
SRV_DATE TYPE STRING,
BEGINTIME TYPE STRING,
ENDTIME TYPE STRING,
EXTPERS_NO TYPE STRING,
FORMULA TYPE STRING,
FORM_VAL1 TYPE STRING,
FORM_VAL2 TYPE STRING,
FORM_VAL3 TYPE STRING,
FORM_VAL4 TYPE STRING,
FORM_VAL5 TYPE STRING,
USERF1_NUM TYPE STRING,
USERF2_NUM TYPE STRING,
USERF1_TXT TYPE STRING,
USERF2_TXT TYPE STRING,
HI_LINE_NO TYPE STRING,
PRICE TYPE STRING,
CATALOGID TYPE STRING,
CO_CODE TYPE STRING,
FIXED_VEND TYPE STRING,
PURCH_ORG TYPE STRING,
CURRENCY TYPE STRING,
ITEM_TEXT TYPE STRING,
DEL_DATCAT TYPE STRING,
DELIV_DATE TYPE STRING,
PRODUCT TYPE STRING,
CATALOGITEM TYPE STRING,
CATEGORY TYPE STRING,
CATEGORY_ID TYPE STRING,
CONFIG_KEY TYPE STRING,
LOGICAL_SYSTEM TYPE STRING,
PROC_GROUP TYPE STRING,
PROC_ORG TYPE STRING,
PCNUM TYPE STRING,
PCINS TYPE STRING,
PCDATE TYPE STRING,
PCNAME TYPE STRING,
PARTNER TYPE STRING,
PARTNER_GUID TYPE STRING,
GR_RCPT_GUID TYPE STRING,
IV_RCPT_GUID TYPE STRING,
LOGSYS_FI TYPE STRING,
DOC_TYPE TYPE STRING,
PUR_GROUP TYPE STRING,
PARTNER_PROD TYPE STRING,
PREQ_NAME TYPE STRING,
PLANT TYPE STRING,
EXT_QUOTE_ID TYPE STRING,
EXT_QUOTE_ITEM TYPE STRING,
SUBTYPE TYPE STRING,
CTR_GUID TYPE STRING,
GR_RCPT_PLANT TYPE STRING,
PO_PRICE TYPE STRING,
TRACKINGNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REQLINESR_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_REQLINESR_STR-CLIENT sy-vline 
WA_REQLINESR_STR-REQNO sy-vline 
WA_REQLINESR_STR-REQSLINE sy-vline 
WA_REQLINESR_STR-REQLLINE sy-vline 
WA_REQLINESR_STR-PCKG_NO sy-vline 
WA_REQLINESR_STR-OUTL_LEVEL sy-vline 
WA_REQLINESR_STR-OUTL_NO sy-vline 
WA_REQLINESR_STR-OUTL_IND sy-vline 
WA_REQLINESR_STR-SUBPCKG_NO sy-vline 
WA_REQLINESR_STR-SERVICE sy-vline 
WA_REQLINESR_STR-SERV_TYPE sy-vline 
WA_REQLINESR_STR-EDITION sy-vline 
WA_REQLINESR_STR-SSC_ITEM sy-vline 
WA_REQLINESR_STR-EXT_SERV sy-vline 
WA_REQLINESR_STR-QUANTITY sy-vline 
WA_REQLINESR_STR-BASE_UOM sy-vline 
WA_REQLINESR_STR-UOM_ISO sy-vline 
WA_REQLINESR_STR-OVF_TOL sy-vline 
WA_REQLINESR_STR-OVF_UNLIM sy-vline 
WA_REQLINESR_STR-PRICE_UNIT sy-vline 
WA_REQLINESR_STR-GR_PRICE sy-vline 
WA_REQLINESR_STR-FROM_LINE sy-vline 
WA_REQLINESR_STR-TO_LINE sy-vline 
WA_REQLINESR_STR-SHORT_TEXT sy-vline 
WA_REQLINESR_STR-DISTRIB sy-vline 
WA_REQLINESR_STR-PERS_NO sy-vline 
WA_REQLINESR_STR-WAGETYPE sy-vline 
WA_REQLINESR_STR-PLN_PCKG sy-vline 
WA_REQLINESR_STR-PLN_LINE sy-vline 
WA_REQLINESR_STR-CON_PCKG sy-vline 
WA_REQLINESR_STR-CON_LINE sy-vline 
WA_REQLINESR_STR-TMP_PCKG sy-vline 
WA_REQLINESR_STR-TMP_LINE sy-vline 
WA_REQLINESR_STR-SSC_LIM sy-vline 
WA_REQLINESR_STR-LIMIT_LINE sy-vline 
WA_REQLINESR_STR-TARGET_VAL sy-vline 
WA_REQLINESR_STR-BASLINE_NO sy-vline 
WA_REQLINESR_STR-BASIC_LINE sy-vline 
WA_REQLINESR_STR-ALTERNAT sy-vline 
WA_REQLINESR_STR-BIDDER sy-vline 
WA_REQLINESR_STR-SUPP_LINE sy-vline 
WA_REQLINESR_STR-OPEN_QTY sy-vline 
WA_REQLINESR_STR-INFORM sy-vline 
WA_REQLINESR_STR-BLANKET sy-vline 
WA_REQLINESR_STR-EVENTUAL sy-vline 
WA_REQLINESR_STR-TAX_CODE sy-vline 
WA_REQLINESR_STR-TAXJURCODE sy-vline 
WA_REQLINESR_STR-PRICE_CHG sy-vline 
WA_REQLINESR_STR-MATL_GROUP sy-vline 
WA_REQLINESR_STR-SRV_DATE sy-vline 
WA_REQLINESR_STR-BEGINTIME sy-vline 
WA_REQLINESR_STR-ENDTIME sy-vline 
WA_REQLINESR_STR-EXTPERS_NO sy-vline 
WA_REQLINESR_STR-FORMULA sy-vline 
WA_REQLINESR_STR-FORM_VAL1 sy-vline 
WA_REQLINESR_STR-FORM_VAL2 sy-vline 
WA_REQLINESR_STR-FORM_VAL3 sy-vline 
WA_REQLINESR_STR-FORM_VAL4 sy-vline 
WA_REQLINESR_STR-FORM_VAL5 sy-vline 
WA_REQLINESR_STR-USERF1_NUM sy-vline 
WA_REQLINESR_STR-USERF2_NUM sy-vline 
WA_REQLINESR_STR-USERF1_TXT sy-vline 
WA_REQLINESR_STR-USERF2_TXT sy-vline 
WA_REQLINESR_STR-HI_LINE_NO sy-vline 
WA_REQLINESR_STR-PRICE sy-vline 
WA_REQLINESR_STR-CATALOGID sy-vline 
WA_REQLINESR_STR-CO_CODE sy-vline 
WA_REQLINESR_STR-FIXED_VEND sy-vline 
WA_REQLINESR_STR-PURCH_ORG sy-vline 
WA_REQLINESR_STR-CURRENCY sy-vline 
WA_REQLINESR_STR-ITEM_TEXT sy-vline 
WA_REQLINESR_STR-DEL_DATCAT sy-vline 
WA_REQLINESR_STR-DELIV_DATE sy-vline 
WA_REQLINESR_STR-PRODUCT sy-vline 
WA_REQLINESR_STR-CATALOGITEM sy-vline 
WA_REQLINESR_STR-CATEGORY sy-vline 
WA_REQLINESR_STR-CATEGORY_ID sy-vline 
WA_REQLINESR_STR-CONFIG_KEY sy-vline 
WA_REQLINESR_STR-LOGICAL_SYSTEM sy-vline 
WA_REQLINESR_STR-PROC_GROUP sy-vline 
WA_REQLINESR_STR-PROC_ORG sy-vline 
WA_REQLINESR_STR-PCNUM sy-vline 
WA_REQLINESR_STR-PCINS sy-vline 
WA_REQLINESR_STR-PCDATE sy-vline 
WA_REQLINESR_STR-PCNAME sy-vline 
WA_REQLINESR_STR-PARTNER sy-vline 
WA_REQLINESR_STR-PARTNER_GUID sy-vline 
WA_REQLINESR_STR-GR_RCPT_GUID sy-vline 
WA_REQLINESR_STR-IV_RCPT_GUID sy-vline 
WA_REQLINESR_STR-LOGSYS_FI sy-vline 
WA_REQLINESR_STR-DOC_TYPE sy-vline 
WA_REQLINESR_STR-PUR_GROUP sy-vline 
WA_REQLINESR_STR-PARTNER_PROD sy-vline 
WA_REQLINESR_STR-PREQ_NAME sy-vline 
WA_REQLINESR_STR-PLANT sy-vline 
WA_REQLINESR_STR-EXT_QUOTE_ID sy-vline 
WA_REQLINESR_STR-EXT_QUOTE_ITEM sy-vline 
WA_REQLINESR_STR-SUBTYPE sy-vline 
WA_REQLINESR_STR-CTR_GUID sy-vline 
WA_REQLINESR_STR-GR_RCPT_PLANT sy-vline 
WA_REQLINESR_STR-PO_PRICE sy-vline 
WA_REQLINESR_STR-TRACKINGNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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