Select query to retrive row id's

How to write select query to retrieve data between row id 30 to row id 60.

Hi,
ROWID number will never be 30 (or) 60, it's not a decimal number you want rows between 30 and 60? if yes, use below query:
select * from
(select rownum rn, t.* from <your_table> t
where rownum<61)
where rn between 30 and 60;

Similar Messages

Select Query to fetch rows that contain non alphabetic characters

how to select rows from a table (tab1) where a specific column (tab1.col1) has non alphabetic characters

hi,
you didnt specify which version you are using.
if you are working on oracle 10g you can use regular expressions like this:
select * from tab1 where regexp_like(col1,'[^[[:alpha:]]]');

Select Query to achieve specified output (Script given)

Hello all,
SOURCE DATA
Given below is the data present in the table:
EMP_ID YEAR SAL
10 1997 1400.00
10 2001 1500.00
10 2003 1600.00
10 2004 1700.00
10 2006 1800.00
20 2003 2500.00
20 2005 2800.00
20 2006 3000.00
REQUIREMENT
Write a select query to return rows with consecutive years,
if in case the year is not present for a particular employee
then that year must be populated with the previous years's data of the same employee
example - For the employee 10, for the years 1998, 1999, 2000 are populated
with the data of 1997
Pls let me know if you need any information from my end.
Thank you.
EMP_ID YEAR SAL
10 1997 1400.00
10 1998 1400.00
10 1999 1400.00
10 2000 1400.00
10 2001 1500.00
10 2002 1500.00
10 2003 1600.00
10 2004 1700.00
10 2005 1700.00
10 2006 1800.00
20 2003 2500.00
20 2004 2500.00
20 2005 2800.00
20 2006 3000.00
SCRIPT:
CREATE TABLE temp (
emp_id NUMBER(4),
year NUMBER(4),
sal NUMBER(10,2),
CONSTRAINT pk_temp PRIMARY KEY (emp_id, year)
INSERT INTO temp (emp_id, year, sal) VALUES (10, 1997, 1400);
INSERT INTO temp (emp_id, year, sal) VALUES (10, 2001, 1500);
INSERT INTO temp (emp_id, year, sal) VALUES (10, 2003, 1600);
INSERT INTO temp (emp_id, year, sal) VALUES (10, 2004, 1700);
INSERT INTO temp (emp_id, year, sal) VALUES (10, 2006, 1800);
INSERT INTO temp (emp_id, year, sal) VALUES (20, 2003, 2500);
INSERT INTO temp (emp_id, year, sal) VALUES (20, 2005, 2800);
INSERT INTO temp (emp_id, year, sal) VALUES (20, 2006, 3000);
COMMIT;
Thanks and Regards,
Muthu
Message was edited by:
[email protected]

Hi,
What about this :
1 select emp.emp_id, emp.year,
2         case when temp.sal is null then (select max(sal) keep (dense_rank last order by year)
3                                          from   temp
4                                          where emp.emp_id=temp.emp_id
5                                          and    emp.year>temp.year
6                                          and    temp.sal is not null)
7     else temp.sal end sal
8 from
9 (select emp_year.emp_id, y.year
10   from (select emp_id,
11                min(year) min_year,
12                max(year) max_year
13         from temp group by emp_id) emp_year,
14   (select min_year+rownum-1 year
15    from (select min(year) min_year, max(year) max_year from temp)
16    connect by level <=max_year-min_year+1) y
17   where y.year>=emp_year.min_year
18   and   y.year<=emp_year.max_year) emp,
19 temp
20 where emp.emp_id=temp.emp_id(+)
21 and   emp.year=temp.year(+)
22* order by 1,2
SQL> /
    EMP_ID       YEAR        SAL
        10       1997       1400
        10       1998       1400
        10       1999       1400
        10       2000       1400
        10       2001       1500
        10       2002       1500
        10       2003       1600
        10       2004       1700
        10       2005       1700
        10       2006       1800
        20       2003       2500
        20       2004       2500
        20       2005       2800
        20       2006       3000
14 rows selected.
SQL> select * from temp order by 1,2;
    EMP_ID       YEAR        SAL
        10       1997       1400
        10       2001       1500
        10       2003       1600
        10       2004       1700
        10       2006       1800
        20       2003       2500
        20       2005       2800
        20       2006       3000
8 rows selected.Nicolas.

How to use string operation in where clause of select query

Hello All,
I just want to know how can i write a restriction in select query saying retrive data only begins with name "DE*".
Explaination: If my table has records and names starts with character then i want to write a query to fetch all the records in which names starts with DE*.
Thanks in advance for your quick reply...
Dev.

Hi
In the where clause you need to write like
WHERE NAME LIKE 'DE%'
Regards
Sudheer

Needs help to retrive the last row in a select query without using rownum

Hi ,
i need to retrive the last row from the select sub query without using rownum.
is there any other way to retrive the last row other than the below query.
is that the ROWNUM=1 will always retrive the 1 row of the select query ?
select from*
*(select ename from employee where dept_id=5 order by desc) where rownum=1;*
Please advise.
thanks for your help advance,
regards,
Senthur

957595 wrote:
Actually my problem is ithat while selecting the parents hiearchy of the child data using
CONNECT BY PRIOIR query
I need the immediate parent of my child data.
For example my connect BY query returns
AAA --- ROOT
BBB --PARENT -2
CCC --PARENT-1
DDD IS my input child to the connect by query
Immediate parent of my child data "DDD" ---> CCC(parent -1)
i want the data "CCC" from the select query,for that i am taking the last row of the query with rownum.
I got to hear that using ROWNUM to retrive the data will leads to some problem.It is a like a magic number.I am not sure what the problem will be.
So confusing with using this rownum in my query.
Please advice!!!It's not quite clear what you're wanting, but perhaps this may help?
you can select the PRIOR values to get the parent details if you want...
SQL> ed
Wrote file afiedt.buf
1 select empno, lpad(' ',(level-1)*2,' ')||ename as ename, prior empno as mgr
2 from emp
3 connect by mgr = prior empno
4* start with mgr is null
SQL> /
     EMPNO ENAME                                 MGR
      7839 KING
      7566   JONES                              7839
      7788     SCOTT                            7566
      7876       ADAMS                          7788
      7902     FORD                             7566
      7369       SMITH                          7902
      7698   BLAKE                              7839
      7499     ALLEN                            7698
      7521     WARD                             7698
      7654     MARTIN                           7698
      7844     TURNER                           7698
      7900     JAMES                            7698
      7782   CLARK                              7839
      7934     MILLER                           7782
14 rows selected.(ok, not the best of examples as the mgr is already known for a row, but it demonstrates you can select prior data)

How can i update rows in a table based on a match from a select query

Hello
How can i update rows in a table based on a match from a select query fron two other tables with a update using sqlplus ?
Thanks Glenn
table1
attribute1 varchar2 (10)
attribute2 varchar2 (10)
processed varchar2 (10)
table2
attribute1 varchar2 (10)
table3
attribute2 varchar2 (10)
An example:
set table1.processed = "Y"
where (table1.attribute1 = table2.attribute1)
and (table1.attribute2 = table3.attribute2)

Hi,
Etbin wrote:
Hi, Frank
taking nulls into account, what if some attributes are null ;) then the query should look like
NOT TESTED !
update table1 t1
set processed = 'Y'
where exists(select null
from table2
where lnnvl(attribute1 != t1.attribute1)
and exists(select null
from table3
where lnnvl(attribute2 != t1.attribute2)
and processed != 'Y'Regards
EtbinYes, you could do that. OP specifically requested something else:
wgdoig wrote:
set table1.processed = "Y"
where (table1.attribute1 = table2.attribute1)
and (table1.attribute2 = table3.attribute2)This WHERE clause won't be TRUE if any of the 4 attribute columns are NULL. It's debatable about what should be done when those columns are NULL.
But there is no argument about what needs to be done when processed is NULL.
OP didn't specifically say that the UPDATEshould or shouldn't be done on rows where processed was already 'Y'. You (quite rightly) introduced a condition that would prevent redo from being generated and triggers from firing unnecessarily; I'm just saying that we have to be careful that the same condition doesn't keep the row from being UPDATEd when it is necessary.

How to get number of rows return in SELECT query

i'm very new in java, i have a question:
- How to get number of rows return in SELECT query?
(i use SQL Server 2000 Driver for JDBC and everything are done, i only want to know problems above)
Thanks.

make the result set scroll insensitve, do rs.last(), get the row num, and call rs.beforeFirst(), then you can process the result set like you currently do.
         String sql = "select * from testing";
         PreparedStatement ps =
          con.prepareStatement(sql,ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
         ResultSet rs = ps.executeQuery();
         rs.last();
         System.out.println("Row count = " + rs.getRow());
         rs.beforeFirst();~Tim
NOTE: Ugly, but does the trick.

Cursor in select query in row to column format

Hi
I have the query like below
SELECT d.department_id,
             CURSOR(SELECT e.first_name,
                     e.last_name
              FROM   employees e
              WHERE e.department_id = d.department_id
       ) emps
FROM   depatments dI want the result set in a format of Row To columns like
10                             20
<cursor result>   <cursor result>pls give ur suggestions how to achieve this in a efficient way?I tried the method of "max(decode(.." but dont think so its possible with this

vishnu prakash wrote:
Hi
I have the query like below
SELECT d.department_id,
CURSOR(SELECT e.first_name,
e.last_name
FROM   employees e
WHERE e.department_id = d.department_id
) emps
FROM   depatments dI want the result set in a format of Row To columns like
10                             20
<cursor result>   <cursor result>pls give ur suggestions how to achieve this in a efficient way?I tried the method of "max(decode(.." but dont think so its possible with thisNumber of column of a select query is static. Must be known at the parsing time itself. But in your case i dont think the number of columns will be limited to 2 (10 and 20) there could be many more.
You can search this forum to see how to PIVOT your data. There are lot of example. You can also try dynamic pivot. Its all in here, just search.

How to capture all the rows returned from a sql select query in CPO

Hi,
I am executing an sql select query which returns multiple rows. I need to capture the values of each row to specific variables. How do I proceed.
Thanks,
Swati

The select activities ("Select from Oracle," Select from SQL Server," etc.) against database already return tables. Use one of the database adapters to do your select, and it will already be in a table form. Just put your query in the select and identify the columns in your result table. The online help or the database adapter guides in the product documentation can help.

Select query on a table with 13 million of rows

Hi guys,
I have been trying to perform a select query on a table which has 13 millions of entries however it took around 58 min to complete.
The table has 8 columns with 4 Primary keys looks like below:
(PK) SegmentID > INT
(PK) IPAddress > VARCHAR (45)
MAC Address > VARCHAR (45)
(PK) Application Name > VARCHAR (45)
Total Bytes > INT
Dates > VARCHAR (45)
Times > VARCHAR (45)
(PK) DateTime > DATETIME
The sql query format is :
select ipaddress, macaddress, sum(totalbytes), applicationname , dates,
times from appstat where segmentid = 1 and datetime between '2011-01-03
15:00:00.0' and '2011-01-04 15:00:00.0' group by ipaddress,
applicationname order by applicationname, sum(totalbytes) desc
Is there a way I can improve this query to be faster (through my.conf or any other method)?
Any feedback is welcomed.
Thank you.
Mus

Tolls wrote:
What db is this?
You never said.
Anyway, it looks like it's using the Primary Key to find the correct rows.
Is that the correct number of rows returned?
5 million?
Sorted?I am using MySQL. By the way, the query time has been much more faster (22 sec) after I changed the configuration file (based on my-huge.cnf).
The number of rows returned is 7999 Rows
This is some portion of the my.cnf
# The MySQL server
[mysqld]
port = 3306
socket = /var/lib/mysql/mysql.sock
skip-locking
key_buffer = 800M
max_allowed_packet = 1M
table_cache = 256
sort_buffer_size = 1M
read_buffer_size = 1M
read_rnd_buffer_size = 4M
myisam_sort_buffer_size = 64M
thread_cache_size = 8
query_cache_size= 16M
log = /var/log/mysql.log
log-slow-queries = /var/log/mysqld.slow.log
long_query_time=10
# Try number of CPU's*2 for thread_concurrency
thread_concurrency = 6
Is there anything else I need to tune so it can be faster ?
Thanks a bunch.
Edited by: user578505 on Jan 17, 2011 6:47 PM

To select particular rows from order by select query

Hi all,
I want to select particular rows from a order by select query like...
select * from emp order by ename;
If i pass 3 and 7 dynamically in where clause or something like that, it has to show rows from 3 to 7 only.
Thanks in advance
Pal

This?
SQL> select *
from (
   select e.*,
      row_number() over (order by ename) rn
   from emp e)
where rn in (3,7)
EMPNO ENAME      JOB         MGR HIREDATE         SAL       COMM     DEPTNO RN
7698 BLAKE      MANAGER    7839 01-MAY-81       2850                    30 3
7566 JONES      MANAGER    7839 02-APR-81       2975                    20 7
2 rows selected.

Convert columns to rows by a select query

I have a table with 10 columns. Pk is combination of 3 columns, let us say A, B and C. I need a select query which returns 7 rows with four columns each let us say A,B,C and D where D contains the value of non PK column. i.e. for first row, D will contain value of fourth column of the table, for second row, D will contain fifth column of the table and so on.
Please help.

Maybe NOT TESTED!
select col_a,col_b,col_c,column_4 col_d
from (select col_a,col_b,col_c,col_d,col_e,col_f,col_g,col_h,col_i,col_j
          from the_table
unpivot include nulls (column_4 for source_column in (col_d as 'col_d',
                                                      col_e as 'col_e',
                                                      col_f as 'col_f',
                                                      col_g as 'col_g',
                                                      col_h as 'col_h',
                                                      col_i as 'col_i',
                                                      col_j as 'col_j'
                      )Regards
Etbin

How do I get last 15 rows from a select query

Hello,
I am writing a query, and I need to filter the last 15 rows of from the select query.
For example: Select id, name,join_date from emp order by join_date;
So I need to get the last 15 rows from emp table so that we can who are the last 15 employees joined the organization. I want to show the result in ascending order, otherwise I would have taken first 15 rows with order by clause as descinding order.
Thanks in advance,
Param.

SQL> select ename, join_date from test222
2 where rownum < 6
3 order by join_date
4 /
ENAME JOIN_DATE
CNC5461177794 14-FEB-02
OR91551178218 14-FEB-02
TUB9894676495 14-FEB-02
SG15431177117 14-FEB-02
PIB9384674017 14-FEB-02
SQL> SELECT * from
2 (select ename, join_date from test222
3 order by join_date desc)
4 WHERE rownum < 6
5 /
ENAME JOIN_DATE
II61111208401 19-MAR-02
II61451208038 18-MAR-02
PI20014184983 01-MAR-02
BNF2221148037C 28-FEB-02
UO78902581 18-FEB-02
Can you see the problem now ?
You can test this concept with your own table.
have a good day,
Sri

Select query for rows where condition 1

Say I have a table, tb1, that has the following entries:
FName LName
Code
John Doe
xxx
Jane Doe
xxx
Steve Harper
x
Barrak Obama
x
George Bush
xxxx
Bill Clinton
xx
I'd like to write a select query that only lists the rows where the count for Code is > 1, i.e not display the last two rows from the above entry. How would I go about writing that select query.
Thanks.

Please post DDL, so that people do not have to guess what the keys, constraints, Declarative Referential Integrity, data types, etc. in your schema are. Learn how to follow ISO-11179 data element naming conventions and formatting rules. Temporal data should
use ISO-8601 formats. Code should be in Standard SQL as much as possible and not local dialect.
This is minimal polite behavior on SQL forums.
>> Say I have a table, tb1, that has the following entries: <<
Are you this rude or really ignorant and too lazy to read the Netiquette at the start to this forum? Why do you think you do not need a key? No DDL? No constraints? And , why, why do you think that “tb1” is a precise, ISO-11179 conforming table name?
Let's make this a table of rude posters rated on a 4-star scale.
CREATE TABLE Rude_Posters
(first_name VARCHAR(15) NOT NULL,
last_name VARCHAR(15) NOT NULL,
PRIMARY KEY (first_name, last_name),
rudeness_code VARCHAR (4) NOT NULL
CHECK (rudeness_code IN ('x', 'xx', 'xxx', 'xxxx'));
INSERT INTO Rude_Posters
VALUES
('John', 'Doe', 'xxx'),
('Jane', 'Doe', 'xxx'),
('Steve', 'Harper', 'x'),
('Barrack', 'Obama', 'x'),
('George', 'Bush', 'xxxx'),
('Bill', 'Clinton', 'xx');
>> I'd like to write a SELECT query that only lists the rows where the count for rudeness_code is > 1, i.e not display the last two rows from the above entry. <<
The rudeness scale is based on stars, so to ask for an integer value is like saying “on a scale from 1 to 10, what is the color of your favorite letter of the alphabet?”
Next, the number of stars and your narrative do not match. Did you want to say WHERE rudeness_code IN ('xx' 'xxx', 'xxxx')?
Please stop programming SQL until you have gotten more education. At this point, you do not know enough to ask a question.
--CELKO-- Books in Celko Series for Morgan-Kaufmann Publishing: Analytics and OLAP in SQL / Data and Databases: Concepts in Practice Data / Measurements and Standards in SQL SQL for Smarties / SQL Programming Style / SQL Puzzles and Answers / Thinking
in Sets / Trees and Hierarchies in SQL

Oracle 11g :SELECT query blocked..??

Hi Experts,
could you please explain why the below SQL query is blocked?
SELECT 1 FROM DUAL is blocking the SQL statement on GTTAPPUSR@gttccuatcriba04 ( SID=469 ) blocked SQL -> DELETE FROM GTTDB.PURCHASE_ENTRY_ID=:1
SELECT 1 FROM DUAL is blocking the SQL statement on GTTAPPUSR@gttccuatcriba04 ( SID=367 ) blocked SQL -> DELETE FROM GTTDB.PURCHASE_ENTRY_ID=:1
I am scratching my head without any solution when I had a look at the db today. Thanks in advance for your help.
Regards,
Boris
Edited by: user12075620 on Dec 4, 2012 8:58 AM

The SELECT statement is not blocking the UPDATE. As I said in the previous reply, the string that this query produces does not match the logic.
This query is (at least on the surface) correctly identifying that session 1 is blocking session 2. Session 1 holds some lock that session 2 is waiting on. So far, so good. Since session 2 is waiting on the lock, we can easily enough see what session 2 is running (the UPDATE statement). But since session 1 is not blocked, it is potentially off running a ton of other SQL statements (or no SQL statement at all). The query is looking to see what session 1 is running currently. It has no way of determining what session 1 ran at some point in the past to acquire the lock in the first place.
Going back to my KING example,
At noon, session 1 runs
UPDATE emp
SET sal = sal * 2
WHERE ename = 'KING'Session 1 now has a lock on the KING row in the EMP table. But session 1 neither commits nor rolls back, it is still in a transaction. Session 1 might not have any more activity for a long time-- the user might go off to lunch, for example (obviously, applications should not be designed to allow users to maintain open transactions indefinitely, but not all applications are designed correctly). Or it might start running other queries. Let's say that session 1 now runs a query that is going to go for an hour
SELECT *
FROM giant_view_with_lots_of_computationsNow, at 12:45, session 2 comes in and runs
UPDATE emp
SET bonus = 100
WHERE ename = 'KING'Session 2 is blocked. Session 2 is running the UPDATE statement. Session 1 still holds the lock but it is running some completely unrelated SQL statement.
If we run the query you posted, the query will correctly report that session 1 is running the query against the GIANT_VIEW_WITH_LOTS_OF_COMPUTATIONS but incorrectly imply that this SELECT query is the source of the lock. It is not. It simply happens to be the query that the session that does hold the lock happens to be executing at the current moment (why the application seems to be running a lot of queries that select a constant from dual is a separate question).
Justin

Select query to retrive row id's

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