ABAP Select data from SAP table ENQ_LOCK_DATA into internal table

Get Example source ABAP code based on a different SAP table
  

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ENQ_LOCK_DATA
*  INTO TABLE @DATA(IT_ENQ_LOCK_DATA2).
*--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_ENQ_LOCK_DATA INDEX 1 INTO DATA(WA_ENQ_LOCK_DATA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ENQ_LOCK_DATA ASSIGNING <ENQ_LOCK_DATA>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<ENQ_LOCK_DATA>-COLOR = 1.
<ENQ_LOCK_DATA>-DATETIME = 1.
<ENQ_LOCK_DATA>-TIMESTAMP = 1.
<ENQ_LOCK_DATA>-CLIENT = 1.
<ENQ_LOCK_DATA>-USERNAME = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ENQ_LOCK_DATA-APPL_COMPONENT, sy-vline,
WA_ENQ_LOCK_DATA-LOCK_TYPE, sy-vline,
WA_ENQ_LOCK_DATA-COUNTER1, sy-vline,
WA_ENQ_LOCK_DATA-COUNTER2, sy-vline,
WA_ENQ_LOCK_DATA-SOURCE_TYPE, sy-vline,
WA_ENQ_LOCK_DATA-BACKED_UP, sy-vline.
ENDLOOP. *Add any further fields from structure WA_ENQ_LOCK_DATA 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_ENQ_LOCK_DATA 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_ENQ_LOCK_DATA INTO WA_ENQ_LOCK_DATA. *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.
ENDFORM. *&---------------------------------------------------------------------* *& Form process_as_string_field_values *&---------------------------------------------------------------------* FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO. TYPES: BEGIN OF T_ENQ_LOCK_DATA_STR,
COLOR TYPE STRING,
DATETIME TYPE STRING,
TIMESTAMP TYPE STRING,
CLIENT TYPE STRING,
USERNAME TYPE STRING,
APPL_COMPONENT TYPE STRING,
LOCK_TYPE TYPE STRING,
COUNTER1 TYPE STRING,
COUNTER2 TYPE STRING,
SOURCE_TYPE TYPE STRING,
BACKED_UP TYPE STRING,
NAME TYPE STRING,
ARGUMENT TYPE STRING,
ARGUMENT_ORIG TYPE STRING,
OWNER1 TYPE STRING,
OWNER2 TYPE STRING,
OBJECT TYPE STRING,
TCODE TYPE STRING,
INSTANCE_NAME TYPE STRING,
INSTANCE_NO TYPE STRING,
WORKPROCESS_NO TYPE STRING,
SOURCE_COMPONENT TYPE STRING,
SOURCE_ID TYPE STRING,
SESSION TYPE STRING,END OF T_EKKO_STR. DATA: WA_ENQ_LOCK_DATA_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_ENQ_LOCK_DATA_STR-COLOR sy-vline
WA_ENQ_LOCK_DATA_STR-DATETIME sy-vline
WA_ENQ_LOCK_DATA_STR-TIMESTAMP sy-vline
WA_ENQ_LOCK_DATA_STR-CLIENT sy-vline
WA_ENQ_LOCK_DATA_STR-USERNAME sy-vline
WA_ENQ_LOCK_DATA_STR-APPL_COMPONENT sy-vline
WA_ENQ_LOCK_DATA_STR-LOCK_TYPE sy-vline
WA_ENQ_LOCK_DATA_STR-COUNTER1 sy-vline
WA_ENQ_LOCK_DATA_STR-COUNTER2 sy-vline
WA_ENQ_LOCK_DATA_STR-SOURCE_TYPE sy-vline
WA_ENQ_LOCK_DATA_STR-BACKED_UP sy-vline
WA_ENQ_LOCK_DATA_STR-NAME sy-vline
WA_ENQ_LOCK_DATA_STR-ARGUMENT sy-vline
WA_ENQ_LOCK_DATA_STR-ARGUMENT_ORIG sy-vline
WA_ENQ_LOCK_DATA_STR-OWNER1 sy-vline
WA_ENQ_LOCK_DATA_STR-OWNER2 sy-vline
WA_ENQ_LOCK_DATA_STR-OBJECT sy-vline
WA_ENQ_LOCK_DATA_STR-TCODE sy-vline
WA_ENQ_LOCK_DATA_STR-INSTANCE_NAME sy-vline
WA_ENQ_LOCK_DATA_STR-INSTANCE_NO sy-vline
WA_ENQ_LOCK_DATA_STR-WORKPROCESS_NO sy-vline
WA_ENQ_LOCK_DATA_STR-SOURCE_COMPONENT sy-vline
WA_ENQ_LOCK_DATA_STR-SOURCE_ID sy-vline
WA_ENQ_LOCK_DATA_STR-SESSION sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.