ABAP Select data from SAP table ALALERTALV 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 ALALERTALV 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 ALALERTALV. 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 ALALERTALV 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_ALALERTALV TYPE STANDARD TABLE OF ALALERTALV,
WA_ALALERTALV TYPE ALALERTALV,
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: <ALALERTALV> TYPE ALALERTALV.
*Process all fields in table header/work area as string values
PERFORM process_as_string_field_values CHANGING wa_ALALERTALV.
SELECT *
*restrict ABAP select to first 10 rows
UP TO 10 ROWS
FROM ALALERTALV
INTO TABLE IT_ALALERTALV.
*Select data and declare internal table using in-line method @DATA
*SELECT *
* FROM ALALERTALV
* INTO TABLE @DATA(IT_ALALERTALV2).
*--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_ALALERTALV INDEX 1 INTO DATA(WA_ALALERTALV2).
*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ALALERTALV ASSIGNING <ALALERTALV>.
*To update a field value using a field symbol simply change the value via the field symbol pointer<ALALERTALV>-MARKED = 1.
<ALALERTALV>-VALUEICON = 1.
<ALALERTALV>-ROWCOLOR = 1.
<ALALERTALV>-ALERTVALUE = 1.
<ALALERTALV>-ALSEVERITY = 1.
ENDLOOP. LOOP AT IT_ALALERTALV INTO WA_ALALERTALV. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_ALALERTALV-ALERTDATE, sy-vline,
WA_ALALERTALV-ALERTTIME, sy-vline,
WA_ALALERTALV-ALSYSID, sy-vline,
WA_ALALERTALV-MSEGNAME, sy-vline,
WA_ALALERTALV-ALUNIQNUM, sy-vline,
WA_ALALERTALV-ALINDEX, sy-vline.
ENDLOOP. *Add any further fields from structure WA_ALALERTALV 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_ALALERTALV 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_ALALERTALV INTO WA_ALALERTALV. *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_ALALERTALV_STR,
MARKED TYPE STRING,
VALUEICON TYPE STRING,
ROWCOLOR TYPE STRING,
ALERTVALUE TYPE STRING,
ALSEVERITY TYPE STRING,
ALERTDATE TYPE STRING,
ALERTTIME TYPE STRING,
ALSYSID TYPE STRING,
MSEGNAME TYPE STRING,
ALUNIQNUM TYPE STRING,
ALINDEX TYPE STRING,
MTMCNAME TYPE STRING,
OBJECTNAME TYPE STRING,
SHORTNAME TYPE STRING,
MSG TYPE STRING,
MSGLINK TYPE STRING,
GONEDATE TYPE STRING,
GONETIME TYPE STRING,
MANDT TYPE STRING,
USERID TYPE STRING,
ALSTATUS TYPE STRING,
REPORTEDBY TYPE STRING,
MT_NAME TYPE STRING,
MSGARG1 TYPE STRING,
MSGARG2 TYPE STRING,
MSGARG3 TYPE STRING,
MSGARG4 TYPE STRING,
STATCHGDAT TYPE STRING,
STATCHGTIM TYPE STRING,
STATCHGUSR TYPE STRING,END OF T_EKKO_STR. DATA: WA_ALALERTALV_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_ALALERTALV_STR-MARKED sy-vline
WA_ALALERTALV_STR-VALUEICON sy-vline
WA_ALALERTALV_STR-ROWCOLOR sy-vline
WA_ALALERTALV_STR-ALERTVALUE sy-vline
WA_ALALERTALV_STR-ALSEVERITY sy-vline
WA_ALALERTALV_STR-ALERTDATE sy-vline
WA_ALALERTALV_STR-ALERTTIME sy-vline
WA_ALALERTALV_STR-ALSYSID sy-vline
WA_ALALERTALV_STR-MSEGNAME sy-vline
WA_ALALERTALV_STR-ALUNIQNUM sy-vline
WA_ALALERTALV_STR-ALINDEX sy-vline
WA_ALALERTALV_STR-MTMCNAME sy-vline
WA_ALALERTALV_STR-OBJECTNAME sy-vline
WA_ALALERTALV_STR-SHORTNAME sy-vline
WA_ALALERTALV_STR-MSG sy-vline
WA_ALALERTALV_STR-MSGLINK sy-vline
WA_ALALERTALV_STR-GONEDATE sy-vline
WA_ALALERTALV_STR-GONETIME sy-vline
WA_ALALERTALV_STR-MANDT sy-vline
WA_ALALERTALV_STR-USERID sy-vline
WA_ALALERTALV_STR-ALSTATUS sy-vline
WA_ALALERTALV_STR-REPORTEDBY sy-vline
WA_ALALERTALV_STR-MT_NAME sy-vline
WA_ALALERTALV_STR-MSGARG1 sy-vline
WA_ALALERTALV_STR-MSGARG2 sy-vline
WA_ALALERTALV_STR-MSGARG3 sy-vline
WA_ALALERTALV_STR-MSGARG4 sy-vline
WA_ALALERTALV_STR-STATCHGDAT sy-vline
WA_ALALERTALV_STR-STATCHGTIM sy-vline
WA_ALALERTALV_STR-STATCHGUSR sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.