Dump during extraction for the custom datasource (ZFI_GL_14).

Question

Hello all,
we are using Ecc 6.0 and we havent installed Enhancement Package 3. However our requirement is to create a custom datasource (ZFI_GL_14) similar to the standard one (0FI_GL_14). Initially we created the custom DS same as the standard one with the extraction method using Function Module. By default custom DS was assigned with extraction method F2. By running a program we changed F2 to F1 to resemble the standard one and made it as delta enabled as specified in the standard extractor.
when we started extracting the custom DS using RSA3, we encountered so many errors and resolved them. However still we are getting some more errors which requires your help.
1. While testing One of the function module FAGL_GET_LINE_ITEMS, it throws following ABAP dump.
Short text                                                                               
|    A dynamically specified FROM clause has an unexpected format.                              
|What happened?                                                                               
|    Error in the ABAP Application Program                                                        
|                                                                               
|    The current ABAP program "SAPLYPFI_FAGL_ITEMS_SELECT_BW" had to be terminated                
|     because it has come across a statement that unfortunately cannot be executed.                               
|Error analysis                                                                               
|    An exception occurred that is explained in detail below.                                     
|    The exception, which is assigned to class 'CX_SY_DYNAMIC_OSQL_SYNTAX', was not               
|     caught in                                                                               
|    procedure "YPFI_FAGL_GET_LINE_ITEMS" "(FUNCTION)", nor was it propagated by a                
|     RAISING clause.                                                                             
|    Since the caller of the procedure could not have anticipated that the                        
|    exception would occur, the current program is terminated.                                    
|    The reason for the exception is:                                                             
|    The running ABAP program attempted to execute an Open SQL statement in                       
   which a FROM clause was specified dynamically in the field "LD_DBTAB_SYNTAX".                
|     In this                                                                               
|    FROM clause, either a table name after a join operator is missing, or an                     
|     alias name after the key name "AS". The field "LD_DBTAB_SYNTAX" could be empty as well.                                                                               
|Missing RAISING Clause in Interface                                                              
|    Program                                 SAPLYPFI_FAGL_ITEMS_SELECT_BW                        
|    Include                                 LYPFI_FAGL_ITEMS_SELECT_BWU01                        
|    Row                                     1                                                    
|    Module type                             (FUNCTION)                                           
|    Module Name                             YPFI_FAGL_GET_LINE_ITEMS                             
|Trigger Location of Exception                                                                    
|    Program                                 SAPLYPFI_FAGL_ITEMS_SELECT_BW                        
|    Include                                 LYPFI_FAGL_ITEMS_SELECT_BWU01                        
|    Row                                     353                                                  
|    Module type                             (FUNCTION)                                           
|    Module Name                             YPFI_FAGL_GET_LINE_ITEMS                             
|Source Code Extract                                                                               
|Line |SourceCde                                                                               
|  323|                                  lt_fields_flexgl                                         
|  324|                                  lt_fields_table1                                         
|  325|                                  lt_fields_table2                                         
|  326|                                  gv_si_table "erste Tab immer Flexgl?                    
|  327|                                  gc_bkpf                                                  
|  328|*                                  ' '                  
|  329|                                  gc_bkpf_aedat       
|  330|                                  'X'                                                      
|  331|                            CHANGING ld_dbtab_syntax                                       
|  332|                                     lt_fldlist_s                                          
|  333|                                     lt_where_tab[].                                       
334
|  335|*       open cursor                                                                        
|  336|        DESCRIBE TABLE lt_where_tab LINES ld_lines.                                       
|  337|        IF ld_lines GT 0.                                                                 
|  338|          delta_dbcnt          = 0.                                                       
|  339|          old_dbcnt            = 0.                                                        
|  340|          flag_cursor_open     = 'X'.                                                     
|  341|          cursor_flag          = 'X'.                                                      
342
|  343|          OPEN CURSOR WITH HOLD i_cursor FOR                                               
|  344|          SELECT (lt_fldlist_s)                                                            
|  345|            FROM (ld_dbtab_syntax) CLIENT SPECIFIED                                        
|  346|             WHERE (lt_where_tab).                                                         
|  347|        ELSE.                                                                               
|  348|          delta_dbcnt          = 0.                                                        
|  349|          old_dbcnt            = 0.                                                        
|  350|          flag_cursor_open     = 'X'.                                                      
|  351|          cursor_flag          = 'X'.                                                      
352
|>>>>>|          OPEN CURSOR WITH HOLD i_cursor FOR                                               
|  354|          SELECT (lt_fldlist_s)                                                            
|  355|            FROM (ld_dbtab_syntax) CLIENT SPECIFIED.                                       
|  356|        ENDIF.                                                                             
357
|  358|        st_selection[]  = lt_selection[].                  
|  359|        st_fieldlist[]  = lt_fieldlist[].                  
|  360|        sd_dbtab_syntax = ld_dbtab_syntax.             
|  361|        st_fldlist_s[]  = lt_fldlist_s[].                
|  362|        st_where_tab[]  = lt_where_tab[].                
|  363|        st_seltable2[]  = lt_seltable2[].                 
364
|  365|      ENDIF.   "cursor_flag                                                               
366
|  367|      lt_selection[]  = st_selection[].                 
|  368|      lt_fieldlist[]  = st_fieldlist[].                                       
|  369|      ld_dbtab_syntax = sd_dbtab_syntax.        
|  370|      lt_fldlist_s[]  = st_fldlist_s[].                 
|  371|      lt_where_tab[]  = st_where_tab[].              
|  372|      lt_seltable2[]  = st_seltable2[].                   
Line 353 contains the error.
1. L_DBTAB_SYNTAX. As per the statement this field should bring the table name, but it is not bringing any value                          whiledebugging.
2.also lt_fldlist_s should bring the field names.
As this is for New GL line item datasource, I am not sure what fields should lt_fldlist_s and what table name , and wheretab value should come , so that the function module can extract the data.
Kindly help me to get an insight into this issue and to get it resolved.
thanks,
Praba...

Answer 1

Hi Frank,
yes I agree. That was the first question that came to me in my mind. However, the job was handed over to us, and we were able to exactly create the custom DS , FM and Function groups as similar to the standard one and everthing got activated perfectly. But during extraction, it throws the dump.While debugging, the function module is not able to pick the value for the 3 fileds which I stated above in one of my queries. The main extractor for this Datasource is FAGL_GET_SI_DATA and it uses the extract structure FAGLPOSBW.This Main function module in turn calls one more FM, FAGL_GET_LINE_ITEMS by exporting below parameters.
CALL FUNCTION 'FAGL_GET_LINE_ITEMS'
          EXPORTING
            i_block_data = 'X'
            i_block_size = sd_max_lines
            i_selection  = lt_select_int
            i_fieldlist  = lt_fields_int
            i_initflag   = i_initflag.
      ELSE.
From my observation ,  the above statements i_selection  = lt_select_int  and i_fieldlist  = lt_fields_int should contain/pass the value to the line items FM, FAGL_GET_LINE_ITEMS.In the above thread also I mentioned I didnt get the value for ld_dbab_syntax, lt_fieldlst_s and ld_where_tab. I believe it is simply because i_selection and i_fieldlist is not getting the value from lt_select_init and lt_fields_init respectivelyImport parameters for this FM is as below.
I_BLOCK_DATA     TYPE     C
I_BLOCK_SIZE     TYPE     SY-TABIX
I_SELECTION                           TYPE     GUSL_T_SELECTION
I_FIELDLIST                           TYPE     GUSL_T_FIELDS
I_INITFLAG                           TYPE     GUSL_BOOL
I_CHANGED_RECORDS      TYPE     GUSL_BOOL
export parameter for this FM is as below.
FLAG_CURSOR_OPEN     TYPE     FLAG
Changing parameter for this FM is as below
C_T_FAGLPOSE     TYPE     FAGLPOSE_T
where FAGLPOSE means Fields for Reading Data: Line Items: New General Ledger.GUSL_T_SELECTION is the same type like DDIC table type FB_T_FIELD_SELECT_OPTIONS which will have Fieldname and selection option range.GUSL_T_SELECTION is created within the type group GUSL as mentioned below.
TYPES: BEGIN OF GUSL_S_SELECTION,
       FIELDNAME LIKE DFIES-FIELDNAME,
       T_RANGE   TYPE GUSL_T_RANGE,
       END   OF GUSL_S_SELECTION,
       GUSL_T_SELECTION TYPE GUSL_S_SELECTION OCCURS 20.
wherein
FIELDNAME LIKE DFIES-FIELDNAME,
DFIES: --> DD Interface: Table Fields for DDIF_FIELDINFO_GET. Also GUSL_T_FIELDS refers to DFIES.
Regards,
Praba..