Question

preparedStatement.setFetchSize() is not working

Asked by: mani1302

Hi I am using jdbc template to fire a select query wherein i want only first 1000 rows so what i am doing in my code

 PreparedStatement ps = con.prepareStatement(sql);
        ps.setFetchSize(1000);
        ps.setFetchDirection(ResultSet.FETCH_FORWARD);
        ps.setDate(1,getStartDate());
        ps.setDate(2,getEndDate());
still it is not giving me 1000 rows

java -version 1.4
Driver type 2

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Asked On
2009-10-14 at 12:47:02ID24812634
Topic

Java Programming Language

Participating Experts
2
Points
0
Comments
10

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Answers

 

by: christophermccannPosted on 2009-10-14 at 13:35:49ID: 25574880

Why dont you just add LIMIT 1000 to the end of your sql query. For example

SELECT col1 FROM tbl LIMIT 1000

would only return the first 1000 rows.

- Christopher McCann

 

by: mani1302Posted on 2009-10-14 at 14:07:20ID: 25575287

i got the answer to my question, actaully while setting a fetch size we are just hinting the jdbc driver that we need 1000 rows and while setting the Maxrows we are the limiting for the maximum number of rows that any that only resultset object can contain.

To setMaxRows function fixed that issue.

 

by: objectsPosted on 2009-10-14 at 16:30:11ID: 25576191

setFetchSize() just tells the driver how many rows to grab from the server at a time, it has no affect on the size of the result set.

 

by: mani1302Posted on 2009-11-04 at 07:31:44ID: 25740296

i got the answer to my question, actaully while setting a fetch size we are just hinting the jdbc driver that we need 1000 rows and while setting the Maxrows we are the limiting for the maximum number of rows that any that only resultset object can contain.

To setMaxRows function fixed that issue.

 

by: objectsPosted on 2009-11-04 at 12:55:14ID: 25743805

> setting a fetch size we are just hinting the jdbc driver that we need 1000 rows

thats incorrect, see my earlier comment

 

by: objectsPosted on 2009-11-05 at 17:41:59ID: 25756028

my comment explains why the code doesn't give 1000 rows, so from that perspective it should be accepted.

 

by: objectsPosted on 2009-11-09 at 23:14:21ID: 25783036

doesn't bother me what you do,  I'm just responding to your request for a recommendation.
I never objected to it being closed in the first place.

20120131-EE-VQP-002

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