Export to xls from table is taking too long (Around 20 min)

Question

Hi all,
I am new member to this forum. I had a table with 80 columns and 20000 records. It is having primary key column. When i try to export the table data in toad from data grid it is taking 15-20 min. When i try to export from my front end java application it is saying time out. when i query the table i am getting results in 3 secs, but when tried to export it is taking more time.
Can any one please provide me solution for exporting the data faster with in a min?
My table structure is
COL1     NUMBER
COL2      VARCHAR2 (150 Byte)
COL3     DATE
COL4      DATE
COL5      NUMBER
COL6      NUMBER
COL7      VARCHAR2 (6 Byte)
COL8      NUMBER
COL9      NUMBER
COL10     NUMBER
COL11     NUMBER
COL12     NUMBER
COL13     NUMBER
COL14     NUMBER
COL15     CHAR (1 Byte)
COL16     CHAR (1 Byte)
COL17     NUMBER
COL18     NUMBER
COL19     NUMBER
COL20     NUMBER
COL21     NUMBER
COL22     NUMBER
COL23     VARCHAR2 (200 Byte)
COL24     VARCHAR2 (200 Byte)
COL25     VARCHAR2 (200 Byte)
COL26     VARCHAR2 (200 Byte)
COL27     VARCHAR2 (200 Byte)
COL28     VARCHAR2 (200 Byte)
COL29     NUMBER
COL30     VARCHAR2 (200 Byte)
COL31     NUMBER
COL32     NUMBER
COL33     NUMBER
COL34     NUMBER
COL35     NUMBER
COL36     NUMBER
COL37     NUMBER
COL38     NUMBER
COL39     NUMBER
COL40     NUMBER
COL41     DATE
COL42     VARCHAR2 (150 Byte)
COL43     DATE
COL44     VARCHAR2 (150 Byte)
COL45     NUMBER
COL46     VARCHAR2 (50 Byte)
COL47     VARCHAR2 (50 Byte)
COL48     NUMBER
COL49     NUMBER
COL50     CHAR (1 Byte)
COL51     CHAR (1 Byte)
COL52     VARCHAR2 (150 Byte)
COL53     CHAR (1 Byte)
COL54     VARCHAR2 (150 Byte)
COL55     NUMBER
COL56     NUMBER
COL57     VARCHAR2 (250 Byte)
COL58     CHAR (1 Byte)
COL59     CHAR (1 Byte)
COL60     CHAR (1 Byte)
COL61     CHAR (1 Byte)
COL62     CHAR (1 Byte)
COL63     CHAR (1 Byte)
COL64     CHAR (1 Byte)
COL65     CHAR (1 Byte)
COL66     CHAR (1 Byte)
COL67     CHAR (1 Byte)
COL68     CHAR (1 Byte)
COL69     CHAR (1 Byte)
COL70     CHAR (1 Byte)
COL71     CHAR (1 Byte)
COL72     NUMBER
COL73     NUMBER
COL74     NUMBER
COL75     NUMBER
COL76     NUMBER
COL77     CHAR (1 Byte)
COL78     CHAR (1 Byte)
COL79     CHAR (1 Byte)

Answer 1

Hi,
I got it. But this export is happening from front end java application, Which i am simulating in back-end toad. Could you please help me any architecture level approach while creating table. Once again thanks for your input.
Regards,
Pavan.