Pass the Sql query string to the below procedure to generate an Excel file using Ole2 package.
PROCEDURE Create_Excel_File (CSQL Varchar2)
Is
source_cursor Integer;
l_colCnt Number Default 0;
l_descTbl Dbms_sql.desc_tab;
newval1 Varchar2 (4000);
application OLE2.OBJ_TYPE;
workbooks OLE2.OBJ_TYPE;
workbook OLE2.OBJ_TYPE;
worksheets OLE2.OBJ_TYPE;
worksheet OLE2.OBJ_TYPE;
colour OLE2.OBJ_TYPE;
cell OLE2.OBJ_TYPE;
RANGE OLE2.OBJ_TYPE;
range_col OLE2.OBJ_TYPE;
range_row OLE2.OBJ_TYPE;
args OLE2.LIST_TYPE;
rows_processed Number;
row_n Number;
VAL Varchar2 (100);
x Number;
filename Varchar2 (200);
BEGIN
BEGIN
source_cursor := Dbms_Sql.open_Cursor;
Dbms_Sql.parse (source_cursor, cSql, 2);
Dbms_Sql.describe_Columns (c => source_cursor, col_cnt => l_colCnt, desc_t => l_descTbl);
EXCEPTION
When Others
Then
Error_Message (SQLERRM);
RETURN;
END;
application := OLE2.CREATE_OBJ (‘Excel.Application’);
OLE2.SET_PROPERTY (application, ‘Visible’, ‘False’);
workbooks := OLE2.GET_OBJ_PROPERTY (application, ‘Workbooks’);
workbook := OLE2.GET_OBJ_PROPERTY (workbooks, ‘Add’);
worksheets := OLE2.GET_OBJ_PROPERTY (workbook, ‘Worksheets’);
args := OLE2.CREATE_ARGLIST;
OLE2.ADD_ARG (args, 1);
worksheet := OLE2.GET_OBJ_PROPERTY (worksheets, ‘Item’, args);
OLE2.DESTROY_ARGLIST (args);
For T In 1 .. l_colCnt
LOOP
BEGIN
Dbms_Sql.define_Column (source_cursor, T, newval1, 4000);
args := OLE2.CREATE_ARGLIST;
OLE2.ADD_ARG (args, 1);
OLE2.ADD_ARG (args, T); –Next column
cell := OLE2.GET_OBJ_PROPERTY (worksheet, ‘Cells’, args);
OLE2.DESTROY_ARGLIST (args);
colour := ole2.get_obj_property (cell, ‘Borders’);
ole2.set_property (colour, ‘ColorIndex’, 1);
ole2.Release_obj (colour);
colour := ole2.get_obj_property (cell, ‘Interior’);
ole2.set_property (colour, ‘ColorIndex’, 15);
ole2.Release_obj (colour);
OLE2.SET_PROPERTY (cell, ‘Value’, l_descTbl (T).col_name);
OLE2.Release_obj (cell);
EXCEPTION
When Others
Then
Null;
END;
END LOOP;
Rows_processed := Dbms_Sql.EXECUTE (source_cursor);
row_n := 1;
LOOP
IF Dbms_Sql.fetch_Rows (source_cursor) > 0
Then
For T In 1 .. l_colCnt
LOOP
BEGIN
Dbms_Sql.column_Value (source_cursor, T, newval1);
args := OLE2.CREATE_ARGLIST;
OLE2.ADD_ARG (args, row_n + 1);
OLE2.ADD_ARG (args, T); –Next column
cell := OLE2.GET_OBJ_PROPERTY (worksheet, ‘Cells’, args);
OLE2.DESTROY_ARGLIST (args);
colour := ole2.get_obj_property (cell, ‘Borders’);
ole2.set_property (colour, ‘ColorIndex’, 1);
ole2.Release_obj (colour);
OLE2.SET_PROPERTY (cell, ‘Value’, newval1);
OLE2.Release_obj (cell);
EXCEPTION
When Others
Then
EXIT;
END;
newval1 := Null;
END LOOP;
Else
EXIT;
END IF;
row_n := row_n + 1;
END LOOP;
Dbms_Sql.close_Cursor (source_cursor);
— Autofit columns
RANGE := OLE2.GET_OBJ_PROPERTY (worksheet, ‘UsedRange’);
range_col := OLE2.GET_OBJ_PROPERTY (RANGE, ‘Columns’);
range_row := OLE2.GET_OBJ_PROPERTY (RANGE, ‘Rows’);
OLE2.INVOKE (range_col, ‘AutoFit’);
OLE2.INVOKE (range_row, ‘AutoFit’);
OLE2.Release_obj (RANGE);
OLE2.Release_obj (range_col);
OLE2.Release_obj (range_row);
— Get filename and path
filename := ‘Yourexcel.xls’;
— Save as worksheet
IF Nvl (filename, ‘0’) <> ‘0’
Then
OLE2.SET_PROPERTY (application, ‘Visible’, ‘True’);
args := OLE2.CREATE_ARGLIST;
OLE2.ADD_ARG (args, filename);
OLE2.INVOKE (worksheet, ‘SaveAs’, args);
OLE2.DESTROY_ARGLIST (args);
END IF;
— OLE2.INVOKE( workbook ,’Close’);
OLE2.Release_obj (worksheet);
OLE2.Release_obj (worksheets);
OLE2.Release_obj (workbook);
OLE2.Release_obj (workbooks);
OLE2.Release_obj (application);
END;
Download demo form from the following link Generate Excel Report
