Query With BETWEEN Clause Slows Down

hi,
I am experiencing slow down query by using BETWEEN clause. Is there any solution for it?

Here is the difference if I use equal not between.
SQL> select to_char(sysdate,'MM-DD-YYYY HH24:MI:SS') from dual;
TO_CHAR(SYSDATE,'MM
11-14-2005 15:44:03
SQL> SELECT COUNT(*) /*+ USE_NL(al2), USE_NL(al3), USE_NL(al4),
2 USE_NL(al5), USE_NL(al6) */
3 FROM acct.TRANSACTION al1,
4 acct.account_balance_history al2,
5 acct.ACCOUNT al3,
6 acct.journal al4,
7 acct.TIME al5,
8 acct.object_code al6
9 WHERE ( al1.reference_num = al4.reference_num(+)
10 AND al1.timekey = al5.timekey
11 AND al5.timekey = al2.timekey
12 AND al3.surrogate_acct_key = al2.surrogate_acct_key
13 AND al3.surrogate_acct_key = al1.surrogate_acct_key
14 AND al1.report_fy = al3.rpt_fy
15 AND al6.object_code = al1.object_adj
16 )
17 AND ((al1.timekey = 20040701
18 or al1.timekey = 20040801
19 or al1.timekey = 20040901
20 or al1.timekey = 20041001
21 or al1.timekey = 20041101
22 or al1.timekey = 20041201
23 or al1.timekey = 20050101
24 or al1.timekey = 20050201
25 or al1.timekey = 20050301
26 or al1.timekey = 20050401
27 or al1.timekey = 20050501
28 or al1.timekey = 20050601
29 or al1.timekey = 20050701
30 or al1.timekey = 20050801
31 or al1.timekey = 20050901)
32 AND al3.dept = '480');
COUNT(*)/*+USE_NL(AL2),USE_NL(AL3),USE_NL(AL4),USE_NL(AL5),USE_NL(AL6)*/
34245
SQL> select to_char(sysdate,'MM-DD-YYYY HH24:MI:SS') from dual;
TO_CHAR(SYSDATE,'MM
11-14-2005 15:44:24

Similar Messages

Outer join with BETWEEN clause

Hi All,
I have 2 tables (A and B) which i need to join. I need all records from table A and matching records from the table B. below is the structure.
TABLE A (total rows = 10)
ROW_WID
GL_DATE
LOCATION_CODE
TABLE B (total = 7)
ROW_WID
START_DATE
END_DATE
LOCATION_CODE
Initially, we were asked to join based on location_code. In the table B, some of the LOCATION_CODE are missing, which is present in table A.
We wrote below query
SELECT A.*, B.START_DATE, B.END_DATE
FROM A, B
WHERE A.LOCATION_CODE = B.LOCATION_CODE (+)
This gives 10 records, where 3 records have START_DATE and END_DATE NULL. because of outer join
It gave all records from the A table. It worked fine. Now i need to add one more condition where A.GL_DATE between B.START_DATE and B.END_DATE
If i write this
SELECT A.*, B.START_DATE, B.END_DATE
FROM A, B
WHERE A.LOCATION_CODE = B.LOCATION_CODE (+)
AND A.GL_DATE BETWEEN B.START_DATE and B.END_DATE
This gives me only 7 records. IS IT POSSIBLE TO ADD OUTER JOIN with BETWEEN clause.

Hi All,
I'm in a similar situation,
I have a complex query, everything is working fine, except this part (I will simplify everything, removing other stuffs because I need help only on the following condition)
SELECT *
from transaction t, card c
where c.card_id = t.card_id (+)
and t.trn_date between to_date ('01/01/2012','dd/mm/yy') and ('01/01/2013,'dd/mm/yy')
How could i OUTER JOIN the between condition?
I tried with
and t.trn_date between to_date ('01/01/2012','dd/mm/yy') (+) and ('01/01/2013','dd/mm/yy') (+)
but returns a "missing expression" error.
Surely I'm missing some stupid thing about it, could you help me on this? (probably because I'm talking about parameters and I cannot put the outer join on a value)
How can I rewrite the condition in order to satisfy what I'm trying to accomplish?
Thanks in Advance,
Alex
Edited by: 981667 on 14-gen-2013 4.23
Edited by: 981667 on 14-gen-2013 4.24

My magic mouse behaves erratically with intermittent problems - slows down, right click doesn't work, disconnects for a few seconds then reconnects. Anyone suggest what I could do to fix this?

My magic mouse behaves erratically with intermittent problems - slows down, right click doesn't work, disconnects for a few seconds then reconnects. Anyone suggest what I could do to fix this?

I just figured out the print quality issue for my wife with her new iMac and new printer.
She replaced both at once and she couldn't understand why her Artisan 730 was lower quality then her Epson R280 when they had the same specs.
Turns out the newer printer had the option to connect via wifi which we used during setup.
The driver options are completely different depending on how you connect.
Once I connected via USB the correct options were available and the print quality was better.
Looking at the R2400 it dies not have wifi, but while researching the problem for my wife someone esle was having an issue updating to the latest printer driver.
If you go into the print utility from the Printer and Scanner system preference and under the general tab you should have driver 5.5.
One user had to delete the old printer driver before Software Update loaded the newer printer driver.
https://discussions.apple.com/message/15947486#15947486
On my MacBook Pro (w Snow Leopard) I always had to reconnect my wifi at home when it woke up. I upgraded my router from an old Netgear to a newer N D-Link and stopped having to do that.
I would be surprised you would have that problem with an Airport Extreme, you might check to see if there is a firmware update for it.

Hierarchical query with where clause

Hi,
How can I query hierarchically a query with WHERE clause? I have a table with three fields session_id,id and root_id.
When I try with the following query,
select id, level from relation
where session_id = 79977
connect by prior id = root_id start with id = 5042;
It gets duplicate values.
I want the query to show in the hierarchical manner with a filter condition using WHERE clause. Please help me how can I achieve this. If you know any link that describes more about this, please send it.
Thanks in Advance.
Regards,
-Parmy

Hi Sridhar Murthy an others,
Thanks a lot for your/the answer. It's working for me. It saved a lot of other work around without the proper knowledge of hierarchical query. Please send me any link that describes these issues in detail and also I hope as I have mentioned in the other message, same cannot be achieved on views or ( on two different tables ???)
Any way thanks for your reply,
It's working for me.
With happiness,
-Parmy

Outer join on query with OR clause

hi all, i am having problem outerjoining a query with or clause
here is my data
WITH table1 AS
SELECT 'test' txt1, 'pak' txt2, 'ced' txt3, 'su' txt4 FROM dual UNION ALL
SELECT null txt1, 'pak' txt2, 'ced2' txt3, 'su2' txt4 FROM dual UNION ALL
SELECT null txt1, NULL txt2, 'ced3' txt3, 'su3' txt4 FROM dual UNION ALL
SELECT null txt1, NULL txt2, null txt3, 'su3' txt4 FROM dual UNION ALL
SELECT 'text5' txt1, NULL txt2, null txt3, 'su3' txt4 FROM dual UNION ALL
SELECT null txt1, NULL txt2, null txt3, null txt4 FROM dual
,table2 AS
SELECT 111 pid, 'test' txt1, 'pak4' txt2, 'ced' txt3, 'su' txt4 FROM dual UNION ALL
SELECT 222 pid, 'test1' txt1, 'pak' txt2, 'ced2' txt3, 'su2' txt4 FROM dual UNION ALL
SELECT 333 pid, 'test2' txt1, 'pak3' txt2, 'ced3' txt3, 'su4' txt4 FROM dual UNION ALL
SELECT 444 pid, 'test2' txt1, 'pak3' txt2, 'ced4' txt3, 'su3' txt4 FROM dual
SELECT b.pid, a.*
from table1 a, table2 b
WHERE (a.txt1 = b.txt1 OR
       a.txt1 IS NULL AND a.txt2=b.txt2 OR
       Nvl(a.txt2, a.txt1) IS NULL AND a.txt3 = b.txt3 OR
       Nvl(a.txt2, a.txt1) IS NULL AND a.txt3 IS NULL AND a.txt4 = b.txt4
       ) as you can see i am joining table1 and table 2. i am joining with txt1, if txt1 is null then join by txt2, if null then join by txt3 and so on.
the code above product this output
PID     TXT1     TXT2     TXT3     TXT4
===     ====     ===   ==== ====
111     test     pak      ced     su
222             pak      ced2     su2
333                     ced3     su3
444                          su3this output is partially correct. only 4 rows were display and two was left out
SELECT 'text5' txt1, NULL txt2, null txt3, 'su3' txt4 FROM dual UNION ALL
SELECT null txt1, NULL txt2, null txt3, null txt4 FROM dual i tried using outer join but oracle complain that i cannot use outerjoin with OR clause.
can someone help modify my query to display the output below ?
PID     TXT1     TXT2     TXT3     TXT4
===    ====      ===   ==== ====
111     test     pak      ced     su
222             pak      ced2     su2
333                     ced3     su3
444                          su3
NULL NULL   NULL    NULL   NULL
     test5

Not sure you can do it with the Oracle style outer joins, but wioth ANSI style joins it is simple, actually exactly as you had it.
SQL> set null null;
SQL> WITH table1 AS (
2   SELECT 'test' txt1, 'pak' txt2, 'ced' txt3, 'su' txt4 FROM dual UNION ALL
3   SELECT null txt1, 'pak' txt2, 'ced2' txt3, 'su2' txt4 FROM dual UNION ALL
4   SELECT null txt1, NULL txt2, 'ced3' txt3, 'su3' txt4 FROM dual UNION ALL
5   SELECT null txt1, NULL txt2, null txt3, 'su3' txt4 FROM dual UNION ALL
6   SELECT 'text5' txt1, NULL txt2, null txt3, 'su3' txt4 FROM dual UNION ALL
7   SELECT null txt1, NULL txt2, null txt3, null txt4 FROM dual),
8 table2 AS (
9   SELECT 111 pid, 'test' txt1, 'pak4' txt2, 'ced' txt3, 'su' txt4 FROM dual UNION ALL
10   SELECT 222 pid, 'test1' txt1, 'pak' txt2, 'ced2' txt3, 'su2' txt4 FROM dual UNION ALL
11   SELECT 333 pid, 'test2' txt1, 'pak3' txt2, 'ced3' txt3, 'su4' txt4 FROM dual UNION ALL
12   SELECT 444 pid, 'test2' txt1, 'pak3' txt2, 'ced4' txt3, 'su3' txt4 FROM dual)
13 SELECT b.pid, a.*
14 from table1 a
15     LEFT JOIN table2 b
16        ON (a.txt1 = b.txt1 OR
17            a.txt1 IS NULL AND a.txt2=b.txt2 OR
18            Nvl(a.txt2, a.txt1) IS NULL AND a.txt3 = b.txt3 OR
19            Nvl(a.txt2, a.txt1) IS NULL AND a.txt3 IS NULL AND a.txt4 = b.txt4);
       PID TXT1   TXT2   TXT3   TXT4
       111 test   pak    ced    su
       222 null   pak    ced2   su2
       333 null   null   ced3   su3
       444 null   null   null   su3
null       text5 null   null   su3
null       null   null   null   nullJohn

Hosting company does not support SQL query with OUTFILE clause

From my mysql database, I want to allow the user to run a query and produce a csv / text file of our membership database. Unfortunately, I just found out my hosting company does not support the SQL query with OUTFILE clause for MySQL database.
Are there any other options available to produce a file besides me running the query in phpadmin and making the file available to users.
Thanks. George

Maybe this external Export Mysql data to CSV - PHP tutorial will be of help
Cheers,
Günter

Perf tuning issue with a query involving between clause

Hi all,
I am getting issues with performance when I try to execute this query. Given below the query and it is going for a full table scan. I think the problem is with the between clause. But I dont know how to resolve this issue
SELECT psm.member_id
FROM pre_stg_member psm
WHERE psm.map_tran_agn BETWEEN :start_transaction_agn and :end_transaction_agn
and psm.partition_key = :p_partition_key;
Having composite index on map_tran_agn and partition_key.
Please help me in this regard.
Thanks,
Swami

Please consider the following when you post a question.
1. New features keep coming in every oracle version so please provide Your Oracle DB Version to get the best possible answer.
You can use the following query and do a copy past of the output.
select * from v$version 2. This forum has a very good Search Feature. Please use that before posting your question. Because for most of the questions
that are asked the answer is already there.
3. We dont know your DB structure or How your Data is. So you need to let us know. The best way would be to give some sample data like this.
I have the following table called sales
with sales
as
      select 1 sales_id, 1 prod_id, 1001 inv_num, 120 qty from dual
      union all
      select 2 sales_id, 1 prod_id, 1002 inv_num, 25 qty from dual
select *
from sales 4. Rather than telling what you want in words its more easier when you give your expected output.
For example in the above sales table, I want to know the total quantity and number of invoice for each product.
The output should look like this
Prod_id   sum_qty   count_inv
1         145       2 5. When ever you get an error message post the entire error message. With the Error Number, The message and the Line number.
6. Next thing is a very important thing to remember. Please post only well formatted code. Unformatted code is very hard to read.
Your code format gets lost when you post it in the Oracle Forum. So in order to preserve it you need to
use the {noformat}{noformat} tags.
The usage of the tag is like this.
<place your code here>\
7. If you are posting a *Performance Related Question*. Please read
   {thread:id=501834} and {thread:id=863295}.
   Following those guide will be very helpful.
8. Please keep in mind that this is a public forum. Here No question is URGENT.
   So use of words like *URGENT* or *ASAP* (As Soon As Possible) are considered to be rude.

Query with 'unique' clause

Hi folks,
A simple question (8.0.5 on WinNT):
Is there any way to speed up the execution time for
a query with a 'unique' clause? I have a table with 1.6 million
records, and I want to get unique values for a
particular column which is not the primary key.
The result of the query -
select unique(col1) from table1;
typically returns between 1 to 100 unique values for col1.
As such, this query takes upto 18 secs on my test machine in
SQL Window itself (for 1.6 million records in the table). Any
ways to speed it up?
Thanks,
Cheers,
Sanchayan

Having an index on the column should speed it up, but only
where the column is defined as NOT NULL I think. If you
can't put a NOT NULL constraint on the column consider
whether you need to know about NULL values.
If the index was of the bitmap type that would also speed it
up further, probably to take the query time down to one or
two seconds, but they come with a big list of warnings.
Actually, I can't remember now if they're available in your
version.

Execute Case Structure with Button Press Slows Down VI

Hi -
I'm fairly new to LabView, and I am having some issues with using a button to run a timed while loop.
I am writing a VI that outputs a timed voltage pulse to an output channel on a DAQ; meanwhile, the VI reads and graphs the voltage on three input channels on the DAQ. When I use a timed loop that automatically executes when the VI runs, the program works. However, I would like to include a button so I can control the timing and number of voltage pulses sent to the output channel, instead of sending only one voltage pulse each time the VI runs. I have tried to do this using a button wired to a case structure. If the button is 'true,' the VI should send the voltage pulse. If the button is 'false,' the VI should keep the voltage at zero.
When the button is 'false,' the VI runs normally; however, when the button changes to 'true,' the VI slows down and never sends the pulse. Why does this happen? How can I fix it?
Also, how can I send the voltage pulse only when the value of the button changes? I only want the timed loop to execute once when the button changes value.
Thanks for any help or advice!!!
Attachments:
Sensor Read6.vi ‏85 KB

The graph is in the same while loop as the case structure. The while loop won't iterate until all the code inside of it has completed. So the graph only gets updated once, and won't update again until the while loop iterates again. If you need more continual updating you may want to put that in a loop that executes a couple of times, or completely separate your code into 2 while loops. Is it that long of a wait considering your pulse length is 1 second?
Your analog output code is just writing a voltage out (7 volts) until it eventually writes out 0 volts. There is no reason for it to drop down unless you have some sort of electrical problem between your DAQ device and the device on the other end that is reading the 7 volts. What are you connecting that analog output too?
What if you don't use LabVIEW and try to test out that analog output using Measurement and Automation Explorer? Does it do the same thing?

Recording with audio playback slowed down 65% what speed do I need to speed the video back up to to get it into real time?

Ive recorded a test video with audio/music playback slowed down 65% what speed do I need to speed the video back up to to get it into "real" time?
If I'd slowed the audio playback down 50% I would make the video 100% faster.
If I'd slowed the audio playback down 100% I would make the video 200% faster.
So its obviously somewhere inbetween speeding up by 100-200%
Sorry but its melting my brain today and I cant remember the calculation.
thanks

hey all
Thanks for the advise on this. I will explain a little more what am have/am intending to do.
I have used Audacity to slow the song down (Effect>Change Tempo)
Audacity will allow me slow the original song down by up to 99% (Or anything in-between up to 3 decimal places)
Unfortunately I am working to a time restraint of 12 minutes per clip (as my DSLR will only allow up to a 12 minute clip).
The song at normal speed is 4 minutes long.
Originally I slowed the audio down by 50% (Making the audio 8 minutes long), lip synced to it using a rasta blaster and recorded the video using my DSLR at 720p 50fps.
I then imported the video and audio I had been lip syncing to into FCPX.
I sped up the video by x2 (equivalent to speeding it up 200%)
Retime>Fast 2X
Layered the PROPER normal speed audio back over the top and all was fine.
Test video complete.
(You can ignore the 65% slowed down audio I mentioned earlier if you like, that was just an example of a slower than 50% audio test)
Firstly what I really want to do is to be able to slow the AUDIO down as much as possible (But still within the restraints of only being able to adjust FCPX retiming within a whole 1 percentage in the final video edit), but have the AUDIO of the song as near to/under 12 minutes as possible.
I will then re-record the video again to this new slowed down audio.
Secondly I will speed up the video from 12 minutes to 4 minutes.
Thirdly I will layer the correct 100% Normal AUDIO on top.
The FINISHED video should then look like everyone is wizzing around at high speed but the guitar playing/lyrics look like they are being played/sung at the normal speed.
Whatever happens (due to the constraints of FCPX) I need the calculations to work so that FCPX is retimed exactly to a whole 1% for the final video to sync up correctly.
So what I need to know in a nut shell is:-
What calculation do I use to work out the percentage to slow a 4 minute song down to a 12 minute song?
What calculation do I use to work out the percentage of how much I need to then speed the 12 minute video up to turn it back into a 4 minute video?
My mind is melting

Issue in select query with where clause

Hi guys,
I'm facing an issue while using select query with the where clause. When I'm selecting all the data from the table it returns the correct result. But when I'm using the where clause to get the specific rows from the table it returns no rows. But the data I'm trying to fetch using the where condition exists in the table.
Here is my query which causing the issue,
select * from mytable where myfield = 'myvalue'
But if I use the following query it returns the result correctly.
select * from mytable
Also the myfield value 'myvalue' exists in the table.
I have tried by running this query in both SQL Developer and SQL Plus. I have tried this query in mssql as well. It works perfectly and returns correct result sets for both the queries I have mentioned above. I'm unable to predict the issue as I'm new to ORACLE. Please help.
Thanks,
Ram.

Hi Ram,
I experienced an issue similar to this with a varchar2 field. Some of our records had a hidden newline character at the end of them, which was making queries like the one below fail:
select * from employees
where email = '[email protected]'The best way I found to detect this was to use
select 'XX'||email||'XX' from employeesTo make sure that there were no newlines. But that is just a guess. If you could provide some example table data and the outputs of your selects, it would be helpful.
Jeff

Select query with UNION clause in database adapter

Friends,
I have got a SQL query with two UNION clause withing it. like
select a,b,c
from a
union
select a,b,c
from b
The schema generated is like below in sequence
<element>a</element>
<element>b</element>
<element>c</element>
<element>a</element>
<element>b</element>
<element>c</element>
So, the columns from different select queries joined with UNION clause are all appeared in schema instead of the distinct columns.
Is there any way around to solve this issue ? or will need to with DB function/procedure.

I think I know what you are saying but your example doesn't make sense, your SQL should produce something like
I had to change a, b, c with elementA, elementB, elementC as a and b are reserved html tags.
<elementA>DateA</elementA>
<elementB>DataB</elementB>
<elementC>DataC</elementC>
...What is the result of the query when you run it in SQLPlus? Is it what you expect?
cheers
James

Require a query with all clauses

Hi All,
I have been asked for a query to write by using all sql clauses like group by, where, having, order by in a single query. I just wrote the below query but I did not get out put. Please do correct where I am missing.
select deptno, max(sal) from emp group by deptno having deptno > ( select distinct deptno from emp where deptno >= 20)
Thanks for your time and info.

1007912 wrote:
select deptno, max(sal) from emp group by deptno having deptno > ( select distinct deptno from emp where deptno >= 20)
Logically it was wrong; as your sub-query will return more then one record for comparison. By the way if you are querying the same data from same table then why you need a sub query in having clause! No need of it. Even if you are not using any aggregate predicates then use it with where clause.
This is how your query and output should come out!
SQL> select
2   deptno, max(sal)
3 from emp
4 where deptno >= 20
5 group by deptno
6 order by 1
7 /
    DEPTNO   MAX(SAL)
        20       3000
        30       2850
SQL>

ZFS with de-dupe slowing down...

Hi all,
I'm new to Solaris but am evaluating the de-dupe capabilities of Solaris 11.
I have conifgured a Virtual Machine using VMware vSphere 5 with 8GB RAM and a 1.5TB disk and am slowly copying a few million PDFs into a SMB share in the ZFS pool from a remote server.
It's been going well, I'm getting a dedup ratio of 3.3 but after copying 3.5TB of files, I've noticed it slowing down. Now it seems to copy really fast for around 5-6 seconds but will then pause for 10-15 seconds before carrying on for another 5-6 seconds etc...
I'm using the default record size and running "top" doesn't indicate that I'm using any swap, neither do the performance stats in VMware.
Any help/advice/pointers would be gratefully appreciated!
Dave

Thanks for the info. Here's the output of the zdb -DD command
bucket allocated referenced
refcnt blocks LSIZE PSIZE DSIZE blocks LSIZE PSIZE DSIZE
1 12.6M 1.58T 1.08T 1.08T 12.6M 1.58T 1.08T 1.08T
2 582K 72.8G 64.9G 64.9G 1.32M 169G 151G 151G
4 295K 36.9G 34.1G 34.1G 1.47M 189G 174G 174G
8 189K 23.6G 21.9G 21.9G 1.99M 255G 237G 237G
16 97.2K 12.2G 11.3G 11.3G 2.06M 264G 245G 245G
32 52.9K 6.62G 6.15G 6.15G 2.29M 293G 272G 272G
64 27.5K 3.44G 3.21G 3.21G 2.35M 301G 280G 280G
128 13.3K 1.66G 1.53G 1.53G 2.32M 297G 273G 273G
256 5.75K 736M 672M 672M 2.05M 262G 240G 240G
512 2.96K 379M 351M 351M 2.06M 263G 243G 243G
1K 1.15K 147M 132M 132M 1.68M 215G 193G 193G
2K 711 88.9M 78.7M 78.7M 1.73M 222G 196G 196G
4K 103 12.9M 9.72M 9.72M 560K 69.9G 52.4G 52.4G
8K 33 4.12M 3.76M 3.76M 374K 46.7G 42.5G 42.5G
16K 7 896K 817K 817K 155K 19.4G 17.7G 17.7G
32K 28 3.50M 3.10M 3.10M 1.03M 131G 116G 116G
64K 23 2.88M 2.64M 2.64M 1.69M 217G 200G 200G
128K 6 768K 750K 750K 1.31M 168G 164G 164G
Total 13.9M 1.73T 1.22T 1.22T 39.0M 4.88T 4.10T 4.10T
dedup = 3.36, compress = 1.19, copies = 1.00, dedup * compress / copies = 4.00
By my calculation, that makes the dedup table 13.9M * 320 = 4448M = Approx 4.5GB
Does that look right to you experts? That would indicate that my allocated RAM of 8GB should be plenty I think.

Populate list by executing query with where clause

Hi,
I m populating my list from database table using following command.
EntityManagerFactory emf = Persistence.createEntityManagerFactory("learning", new HashMap());
EntityManager em = emf.createEntityManager();
String query = "select d from Dept d";
List list = em.createQuery(query).getResultList();
My list is getting populated with all of rows in my database table(dept). The problem is, I cant use where clause in my query string.
String query = "select d from Dept d where d.dept_name='ANYNAME'";
Moreover I cant select even indivisual columns by using following line
String query = "select d.dept_code,d.dept_name from Dept d";
It looks like that my query is getting all rows from table as Object.
What to do to
1. put some where clause
2. get some particular colums instead of all columns
3. apply some table joins in query
plz help.

Hi Alex,
I misunderstood your question. You had mentioned "My list is getting populated with all of rows in my database table(dept). The problem is, I cant use where clause in my query string. "
I thought you might not have permissions to modify the code in the class, and that's why I suggested that you could write new classes.
1) write new classes,? means if I need just two columns from a table >(instead of all columns), do I need to write new class with just two >columns (getters and setters)?You can write a SQL statement anyway you want , there are no restrictions in JDBC , so if you need just 2 columns you can write a custom query for that.
"select column1 as a, column2 as be from table_name where column3 = xyz" etc.
2) Is not anyway to write SQL statement like
select dept_code,dept_name from dept where dept_name='anything'The above SQL is correct, it should work.
3) Stored procedures? can I get some example(code) to get an idea >how to implement complex queries with where clause and joinings >using stored procedures?Stored procedures are specific to the database you are using, Oracle has a particular syntax for store procdures.
You can call stored procedures from JDBC also, search on Google for
"Calling stored procedures from JDBC"
4) I m using hibernate. can I get any example of using hibernate own >query?Tutorial on Hibernate Query Language:
http://www.hibernate.org/hib_docs/v3/reference/en/html/queryhql.html

Query With BETWEEN Clause Slows Down

Similar Messages

Maybe you are looking for