ABAP Select data from SAP table /LIME/LSQ_MAINTAIN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /LIME/LSQ_MAINTAIN 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 /LIME/LSQ_MAINTAIN. 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 /LIME/LSQ_MAINTAIN 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_/LIME/LSQ_MAINTAIN TYPE STANDARD TABLE OF /LIME/LSQ_MAINTAIN,
      WA_/LIME/LSQ_MAINTAIN TYPE /LIME/LSQ_MAINTAIN,
      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: </LIME/LSQ_MAINTAIN> TYPE /LIME/LSQ_MAINTAIN.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /LIME/LSQ_MAINTAIN
  INTO TABLE IT_/LIME/LSQ_MAINTAIN.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /LIME/LSQ_MAINTAIN
*  INTO TABLE @DATA(IT_/LIME/LSQ_MAINTAIN2).
*--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_/LIME/LSQ_MAINTAIN INDEX 1 INTO DATA(WA_/LIME/LSQ_MAINTAIN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/LIME/LSQ_MAINTAIN ASSIGNING </LIME/LSQ_MAINTAIN>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</LIME/LSQ_MAINTAIN>-ID = 1.
</LIME/LSQ_MAINTAIN>-ID_PARENT = 1.
</LIME/LSQ_MAINTAIN>-ID_GROUP = 1.
</LIME/LSQ_MAINTAIN>-LOC = 1.
</LIME/LSQ_MAINTAIN>-IDX_LOC = 1.

ENDLOOP.

LOOP AT IT_/LIME/LSQ_MAINTAIN INTO WA_/LIME/LSQ_MAINTAIN.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/LIME/LSQ_MAINTAIN-GUID_LOC, sy-vline,
  WA_/LIME/LSQ_MAINTAIN-WERKS, sy-vline,
  WA_/LIME/LSQ_MAINTAIN-LGORT, sy-vline,
  WA_/LIME/LSQ_MAINTAIN-GLN, sy-vline,
  WA_/LIME/LSQ_MAINTAIN-DUNS4, sy-vline,
  WA_/LIME/LSQ_MAINTAIN-LOCID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/LIME/LSQ_MAINTAIN 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_/LIME/LSQ_MAINTAIN 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_/LIME/LSQ_MAINTAIN INTO WA_/LIME/LSQ_MAINTAIN.


*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 PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/LIME/LSQ_MAINTAIN-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/LIME/LSQ_MAINTAIN-PARTNER.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit HUID, internal->external for field HUIDENT
CALL FUNCTION 'CONVERSION_EXIT_HUID_OUTPUT'
  EXPORTING
    input =                      WA_/LIME/LSQ_MAINTAIN-HUIDENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/LIME/LSQ_MAINTAIN-HUIDENT.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ABPSN, internal->external for field WBS_STOCK
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_/LIME/LSQ_MAINTAIN-WBS_STOCK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/LIME/LSQ_MAINTAIN-WBS_STOCK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MDLPD, internal->external for field MATID
CALL FUNCTION 'CONVERSION_EXIT_MDLPD_OUTPUT'
  EXPORTING
    input =                      WA_/LIME/LSQ_MAINTAIN-MATID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/LIME/LSQ_MAINTAIN-MATID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ENTITLED
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/LIME/LSQ_MAINTAIN-ENTITLED
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/LIME/LSQ_MAINTAIN-ENTITLED.
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_/LIME/LSQ_MAINTAIN_STR, 
ID TYPE STRING,
ID_PARENT TYPE STRING,
ID_GROUP TYPE STRING,
LOC TYPE STRING,
IDX_LOC TYPE STRING,
GUID_LOC TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
GLN TYPE STRING,
DUNS4 TYPE STRING,
LOCID TYPE STRING,
APO_LOCNO TYPE STRING,
PARTNER TYPE STRING,
PARTNER_ROLE TYPE STRING,
MOTID TYPE STRING,
MOTSCODE TYPE STRING,
LGNUM TYPE STRING,
LGTYP TYPE STRING,
LGPLA TYPE STRING,
RSRC TYPE STRING,
TU_NUM TYPE STRING,
LGNUM_VIEW TYPE STRING,
HU TYPE STRING,
IDX_HU TYPE STRING,
GUID_HU TYPE STRING,
SSCC TYPE STRING,
LGNUM_HU TYPE STRING,
HUIDENT TYPE STRING,
VHI TYPE STRING,
STOCK TYPE STRING,
IDX_STOCK TYPE STRING,
GUID_STOCK TYPE STRING,
MATNR TYPE STRING,
CHARG TYPE STRING,
OWNER TYPE STRING,
OWNER_ROLE TYPE STRING,
GTIN TYPE STRING,
GTIN_VARIANT TYPE STRING,
CAT TYPE STRING,
STOCK_USAGE TYPE STRING,
SALES_ORD_STOCK TYPE STRING,
S_ORD_ITEM_STOCK TYPE STRING,
WBS_STOCK TYPE STRING,
VRSIOID TYPE STRING,
PRDID TYPE STRING,
APO_MATNR TYPE STRING,
LGNUM_STOCK TYPE STRING,
MATID TYPE STRING,
BATCHID TYPE STRING,
STOCK_DOCCAT TYPE STRING,
STOCK_DOCNO TYPE STRING,
STOCK_ITMNO TYPE STRING,
DOCCAT TYPE STRING,
ENTITLED TYPE STRING,
ENTITLED_ROLE TYPE STRING,
STOCK_CNT TYPE STRING,
ACTION TYPE STRING,
INV_BLOCK_IND TYPE STRING,
XINV_BLOCK_IND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/LIME/LSQ_MAINTAIN_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_/LIME/LSQ_MAINTAIN_STR-ID sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-ID_PARENT sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-ID_GROUP sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-LOC sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-IDX_LOC sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-GUID_LOC sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-WERKS sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-LGORT sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-GLN sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-DUNS4 sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-LOCID sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-APO_LOCNO sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-PARTNER sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-PARTNER_ROLE sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-MOTID sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-MOTSCODE sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-LGNUM sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-LGTYP sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-LGPLA sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-RSRC sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-TU_NUM sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-LGNUM_VIEW sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-HU sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-IDX_HU sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-GUID_HU sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-SSCC sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-LGNUM_HU sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-HUIDENT sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-VHI sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-STOCK sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-IDX_STOCK sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-GUID_STOCK sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-MATNR sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-CHARG sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-OWNER sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-OWNER_ROLE sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-GTIN sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-GTIN_VARIANT sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-CAT sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-STOCK_USAGE sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-SALES_ORD_STOCK sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-S_ORD_ITEM_STOCK sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-WBS_STOCK sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-VRSIOID sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-PRDID sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-APO_MATNR sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-LGNUM_STOCK sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-MATID sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-BATCHID sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-STOCK_DOCCAT sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-STOCK_DOCNO sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-STOCK_ITMNO sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-DOCCAT sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-ENTITLED sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-ENTITLED_ROLE sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-STOCK_CNT sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-ACTION sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-INV_BLOCK_IND sy-vline 
WA_/LIME/LSQ_MAINTAIN_STR-XINV_BLOCK_IND sy-vline      INTO ld_text SEPARATED BY SPACE.

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