I am having table without any primary key. In this table, only inserts and deletes are performed , no update operation.
Is it safe to use order by rowid on such a table ? Does by applying order rowid, is it possible to check order in which rows were inserted in this table ?
Which step in the following plan is the first step of execution
I reckon it is "TABLE ACCESS BY INDEX ROWID| BANK_BATCH_STATE"
Is that correct?
In the "Predicate Information (identified by operation id):"
section the predicates - access and filter for the step "TABLE ACCESS FULL | PYMNT_DUES" are displayed first
Isn't there any relation between the order of execution steps and the order in which predicates are displayed?
Execution Plan
----------------------------------------------------------
Plan hash value: 538700484
-------------------------------------------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
-------------------------------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 1 | 2364 | 15 (14)| 00:00:01 |
|* 1 | FILTER | | | | | |
| 2 | HASH GROUP BY | | 1 | 2364 | 15 (14)| 00:00:01 |
| 3 | NESTED LOOPS | | 1 | 2364 | 14 (8)| 00:00:01 |
| 4 | NESTED LOOPS | | 1 | 2313 | 13 (8)| 00:00:01 |
| 5 | NESTED LOOPS | | 1 | 2281 | 12 (9)| 00:00:01 |
| 6 | NESTED LOOPS OUTER | | 1 | 2255 | 11 (10)| 00:00:01 |
|* 7 | HASH JOIN | | 1 | 175 | 6 (17)| 00:00:01 |
|* 8 | INDEX RANGE SCAN | INDX_2 | 12 | 612 | 2 (0)| 00:00:01 |
|* 9 | TABLE ACCESS FULL | PYMNT_DUES | 43 | 5332 | 3 (0)| 00:00:01 |
| 10 | VIEW PUSHED PREDICATE | | 1 | 2080 | 5 (0)| 00:00:01 |
| 11 | NESTED LOOPS | | 1 | 154 | 5 (0)| 00:00:01 |
| 12 | NESTED LOOPS | | 1 | 103 | 4 (0)| 00:00:01 |
|* 13 | TABLE ACCESS BY INDEX ROWID| BANK_BATCH_STATE | 1 | 32 | 2 (0)| 00:00:01 |
|* 14 | INDEX RANGE SCAN | INDX_BBS_1 | 3 | | 1 (0)| 00:00:01 |
|* 15 | TABLE ACCESS BY INDEX ROWID| DAILY_CHECK | 1 | 71 | 2 (0)| 00:00:01 |
|* 16 | INDEX RANGE SCAN | INDX_SEARCH | 1 | | 1 (0)| 00:00:01 |
|* 17 | INDEX RANGE SCAN | INDX_2 | 1 | 51 | 1 (0)| 00:00:01 |
|* 18 | INDEX RANGE SCAN | INDX_IAM_SR_NO | 1 | 26 | 1 (0)| 00:00:01 |
|* 19 | INDEX RANGE SCAN | INDX_2 | 1 | 32 | 1 (0)| 00:00:01 |
|* 20 | INDEX RANGE SCAN | INDX_2 | 1 | 51 | 1 (0)| 00:00:01 |
-----------------------------------------------------------------
I have below tables,
describe rpthead
Name Null Type
--------------------------- -------- -------------
RPTNO NOT NULL NUMBER
RPTDATE NOT NULL DATE
RPTD_BY NOT NULL VARCHAR2(25)
PRODUCT_ID NOT NULL NUMBER
describe rptbody
Name Null Type
------------- -------- -------------
RPTNO NOT NULL NUMBER
LINENO NOT NULL NUMBER
COMMENTS VARCHAR2(240)
UPD_DATE DATE
The fact is that we store some header in RPTHEAD and store real data in RPTBODY, the question is that if I use below SQL to query all data for a 'PRODUCT_ID'.
SELECT t0.LINENO, t0.COMMENTS, t0.RPTNO, t0.UPD_DATE
FROM RPTBODY t0 , RPTHEAD rpthead
WHERE
(
t0.RPTNO = rpthead.RPTNO
AND
t0.UPD_DATE>=to_date('1970/01/01 00:00:00','YYYY/MM/DD hh24:mi:ss')
AND
rpthead.PRODUCT_ID IN ('4647')
)
I do not want to have 'ORDER by' clause since data set is too large, the sorting takes long time, is there any way to get the result rows in the order sorted by RPTNO? We have the index for RPTNO on RPTBODY.
Its a very small query
SELECT * from EMPLOY
WHERE fk_dept_id IN ( select id
from DEPARTMENT
ORDER BY END_DT DESC)
I cant use IN.
NOTE: Select * should be done from Employ only no joins and all.
oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - 64bit Production
PL/SQL Release 11.1.0.6.0 - Production
"CORE 11.1.0.6.0 Production"
I have data like:-
event_idiss_nbr
171350 2012051WR
171350 2012041WR
171350 2011081CC
171350 2012041WA
171350 2012031WW
171350 2011081WW
171350 2011081CR
171350 2011081CA
The possible last two characters of the iss_nbr can be:-
WW, WR,WA,CR,CA,CC
And I want it to be ORDER BY as follows.
WR
WA
CR
CA
WW
CC
So for example, in above case, it should be
event_idiss_nbr
171350 2012051WR
171350 2012041WR
171350 2012041WA
171350 2012031WW
171350 2011081CR
171350 2011081CA
171350 2011081WW
171350 2011081CC
How can I do it while loading the table?
In a query which gets executed first:
Select clause or Order by clause? First the columns specified in the select clause are fetched and then ordered or is it the vice -versa? In a query if a psuedo-column rownum is selected, then if we use order by on the rownum column, what happens?
What would be the output of the following query and why?Which part of the query is first executed, is it select clause or order by clause?
select empno,ename,rownum from emp order by rownum desc;
I am having trouble with tab order on a Form.
I rearranged the fields on a form, so I want the tab order to be different. I rearranged the fields in the object navigator to be in the order I want them to tab. I made sure the Previous Navigation Item and Next Navigation Item were set to null for all the fields.
Still it keeps the old tab order.
I also tried explicitly specifying the Previous Navigation Item and Next Navigation Item. Same thing, it kept the old tab order before I rearranged the fields. Previous Navigation Item and Next Navigation Item are both null.
There are no triggers on these fields. All fields are in the same block. I am using Oracle Form Builder version 9.
I have a column named "col1" with datatype "varchar2(10)" and row wise entries like "1,1A, 2,3...,10,2A,..." like. I want to order it like "1, 1A ,2,2A, 2B,3... 10...".I tried it with to_number() but it gives me
1,10,11,2,....like that.
I have requirement to create an XML structure through stored procedure. I need to Order some of the columns in ascending order before I format them into the xml structure. I am pretty novice to creating an output into XML format, but attached is the query I came up with (without order by). This works perfect, but now the requirement is to order by - cls_cd, and within cls_cd, again order by - cat_cd. I am not able to do this.
View 2 Replies View RelatedI am one table create tt1(A varchar2(6),B number(5));
insert data in this column
tt1
A B
---------------
F1 1
F365 2
F10 3
F65 4
F55 5
Q. how to get order by a column. i wan't to
tt1
A
--------------------
F1
F10
F35
F65
F365
Q. how to get order by a column , i wan't to
tt1
A
--------------------
F0001
F0010
F0035
F0065
F0365
create table x(
sno varchar2(5)
);
insert into x values('A-1');
insert into x values('B-1');
insert into x values('B-2');
insert into x values('B-3');
insert into x values('1');
insert into x values('A-2');
insert into x values('2');
insert into x values('3');
insert into x values('A-4');
insert into x values('B-4');
insert into x values('C-4');
insert into x values('D-4');
SQL>select * from x;
SNO
-----
A-1
B-1
1
A-2
2
3
A-4
B-4
C-4
D-4
B-2
B-3
How can I select it ike this
1
A-1
A-2
A-4
B-1
2
B-2
3
B-3
B-4
C-4
D-4
I've got a TRANSACTION table with about 4, 681 transactions going on over the course of a given year (this is a project for my DB class). I'm trying to create a query that will give the base revenue for each month in that year; so far I've come up with the following:
SELECT DISTINCT
CASE
WHEN EXTRACT(MONTH FROM transaction_date) = 1 THEN 'JAN' || ' ' || EXTRACT(YEAR FROM transaction_date)
WHEN EXTRACT(MONTH FROM transaction_date) = 2 THEN 'FEB' || ' ' || EXTRACT(YEAR FROM transaction_date)
WHEN EXTRACT(MONTH FROM transaction_date) = 3 THEN 'MAR' || ' ' || EXTRACT(YEAR FROM transaction_date)
WHEN EXTRACT(MONTH FROM transaction_date) = 4 THEN 'APR' || ' ' || EXTRACT(YEAR FROM transaction_date)
[code]....
The query returns twelve months, but they're all jumbled up. I tried extracting the month in the ORDER BY subclause
ORDER BY EXTRACT(MONTH FROM TO_DATE(month, 'MM YYYY'));
But I got an ORA-01866: the datetime class is invalid. I'm using Oracle 10g xe (outdated, I know). get the months to show up in order?
I have the following sql
select htf.escape_sc(su.sukey) a, htf.escape_sc(su.sukey) b
from udm_su su, udm_lde lde
where su.ldeid = lde.ldeid
and su.sukey in (select su_generic
[code]...
I am using 11GR2 and looking to find out a way , where in I able to extract the data files name in such a manner , where it lists data file in order of mount points. say data1 first and then so on.. Snippet from my data files
output. /db/ptmtrain/data1/system01.dbf/db/ptmtrain/data2/sysaux01.dbf/db/ptmtrain/data1/undotbs01.dbf/db/ptmtrain/data3/tools01.dbf/db/ptmtrain/data24/users01.dbf/db/ptmtrain/data25/users02.dbf/db/ptmtrain/data26/users03.dbf/db/ptmtrain/data2/rbs01.dbf/db/ptmtrain/data3/rbs02.dbf/db/ptmtrain/data2/rbs03.dbf/db/ptmtrain/data23/sans01.dbf
should be something
like /db/ptmtrain/data1/system01.dbf/db/ptmtrain/data1/undotbs01.dbf/db/ptmtrain/data2/sysaux01.dbf/db/ptmtrain/data2/rbs03.dbf/db/ptmtrain/data2/rbs01.dbf/db/ptmtrain/data3/tools01.dbf/db/ptmtrain/data3/rbs02.dbf/db/ptmtrain/data23/sans01.dbf/db/ptmtrain/data24/users01.dbf/db/ptmtrain/data25/users02.dbf/db/ptmtrain/data26/users03.dbf
create table members(
memberID varchar2(7),
locationID number(5),
roomID varchar2(5)
)
/
[Code]....
MEMBERI LOCATIONID ROOMI
------- ---------- -----
2007209 1 1
2006253 1 1-A
2006253 1 1-A
2006265 1 1-B
2006240 1 1-C
2005064 1 1-D
2007836 1 100
2007211 1 101
2007075 1 102
2007110 1 105
[Code]...
Function created.
SQL> select * from members
2 order by safe_to_number(roomID);
MEMBERI LOCATIONID ROOMI
------- ---------- -----
2007209 1 1
2007185 1 2
2007089 1 3
2007023 1 4
[Code]....
How can I sort the output to get the result like below
2007209 1 1
2006253 1 1-A
2006253 1 1-A
[Code]...
and so on...
How I can see the order by employees,year wise and monthwise (month should start from january and so on..)
SELECT ENAME,TO_CHAR(HIREDATE,'yyyy') YEAR,TO_CHAR(HIREDATE,'Month') MONTH ,count(*) total
FROM EMP
GROUP BY TO_CHAR(HIREDATE,'yyyy') ,TO_CHAR(HIREDATE,'Month');
I have a varchar2 column which can hold numeric values, and also varchar2 values.
The following select returns only the records which have a number value in that column
select * from my_table
order by decode(
replace(translate(valoare,'1234567890.','00000000000'),'0',''), NULL,
valoare, 0 ) != 0;
But how can i order that column, so that first are the numbers (also ordered), and then the varchar2 columns (so all the rows of that table are selected, both varchar2 values and numbers in that column)? Is it possible?
I have a requirement where I need to display a list of employees, performance rating and manager id. I want to display the employees first whose manager is as manager_id as input parameter. So lets say a manager logs in, he should see his reporters first and then the rest. How can I implement this in SQL? I am trying first clause with order by but not sure how to do that here.
procedure
display_list(manager_id in varchar2)
Output is:
emp_id
manager_id
performance_rating
I have a table (emp) with three columns in ORACLE:
COMPANY OFFICE EMP
------------------------
9999 00001 emp1
9999 00001 emp2
9999 00002 emp3
9999 00002 emp4
[code]...
I want to get value in EMP column with following statement:
-------------
SELECT
EMP
FROM
emp
ORDER BY COMPANY (But 9999 is first), OFFICE (But 99999 is first).
-------------
I don't know how to do.
I have a query with order by clause, which takes 30 sec to execute with order by clause. And if i remove the order by clause it executes within 1 sec.
The column in the order by condition has index. but when i see Explain plan output. it doesn't show this index is being used. I tried to execute query with INDEX hint but still explain plan is not showing this index.
ii have written a query like thi:
select to_char(order_date,'mon-yyyy') "months", sum(nob) "number of bags"
from p_in where order_date between '1-apr-11 and '31-mar-12'
group by to_char(order_date,'mon-yyyy')
the above query returns me a resultset which gives me number of bags sold in every month, but it does not sort the month in their chronological order. i want to sort my resultset in ascending order of month s.,means jan-feb-march-apr-may ams so on...QUOTE
In sql server we can able to change the order of a column but some says in oracle also we can do it. But as i think it is not possible.
View 3 Replies View Relatedi have a table test on 4 different-different database, at the starting structure is same in all the database. and now i want to change the datatype of the primary key column named "testid" , then i add a temp column in test table (and it is added at the last in table).
i have copied the data of testid in temp column and renamed it as testid and i dropped the testid column , then the problem is that primary key column will comes at last and i want to make it like previous position so that there will not be any difference in all 4 database as in structure.
is it possible to changing column order as our desire without dropping the table?and i made all the script to changing the datatype of primary key column.
my table have four cols such as
start_value trans_value result_value create_time
1 4 5 20101018 22:33:40
5 -2 3 20101018 22:33:40
3 3 6 20101018 22:33:40
6 -4 2 20101018 22:33:40
2 +3 5 20101018 22:33:40
5 9 14 20101018 22:33:40
but the data is not in the logic order they are confusing and there no origina sequence such as
start_value trans_value result_value create_time
1 4 5 20101018 22:33:40
3 3 6 20101018 22:33:40
5 -2 3 20101018 22:33:40
2 +3 5 20101018 22:33:40
5 9 14 20101018 22:33:40
6 -4 2 20101018 22:33:40
how to get they in logic order.now i have to create a combination in mem and use loop to get the logic order.
Result are different after adding the Order By clause in below query.
Query
select sum(wpsv1.primary_qty) detail_qty,
wpsv1.from_subinventory subinventory,
wdd.revision revision,
[Code]....
I know that order by clause in normal query is used to order the result set based on the key. significance of order by clause in analytical functions.
with data as
(select empno,
sal,
case
[Code]...
In case of min, max analytical functions order by clause have importance. But how it will work for a COUNT function ?
I am using oracle 10g.
I have a query which is used to get the contact details based on the zip code
select * from contacts where
primary_address_postalcode like '65084%' or
primary_address_postalcode like '65011%' or
primary_address_postalcode like '65034%' or
primary_address_postalcode like '65078%' or
primary_address_postalcode like '65050%' or
primary_address_postalcode like '65037%' or
primary_address_postalcode like '65329%' or
primary_address_postalcode like '65072%' or
primary_address_postalcode like '65081%' or
primary_address_postalcode like '65038%'
Result
userid name primary_address_postalcode
5 abc 65072
6 def 65038 -12343
1 xyz 65050
24 pqr 65011
32 test 65011-23455
54 itsme 65329
i want to order the records just same as the zip codes we are using in like (65084,65011,65034, 65078,65050, 65037, 65329,65072, 65081, 65038)
How can i get the result like below
expected result
userid name primary_address_postalcode
24 pqr 65011
32 test 65011-23455
1 xyz 65050
54 itsme 65329
5 abc 65072
6 def 65038-12343
I have given below example.I hope that is clear.
M_STR_1 VARCHAR2(1000);
M_STR_2 VARCHAR2(1000);
BEGIN
M_STR_1 :='CHANDAN,RATTAN,PL,SQL';
M_STR_2 :='PL,SQL,RATTAN,CHANDAN,WINDOWS,LINUX';
--Output should like this same as order of M_STR_1
M_STR_2 :='CHANDAN,RATTAN,PL,SQL,WINDOWS,LINUX';
I think approach should be like take 1st word (before ,)and search the position in M_STR_1
and assign the that position in another variable using ltrim or rtrim. Well this what is i think
select bill_no from bill_mst is showing 25 records.
select bill_no from bill_mst order by 1 is showing 5 records.
I have a query to pull the first contact of students.
The table has all contacts like parent/guardian, friends family, emergency contact etc.
I would like to the first primary contact in this order,
1. initial contact, 2. same as student address and also have to be parents,
3. live with and also a parent, 4. parents 5. friends.
I don't know how to pull 2 and 3 . because it looks like it needs to concatenate the columns.
here is my initial query
Select Min(U2.Id) Keep (Dense_Rank First Order By U2.Initial_Contact Desc, U2.Same_As_Students_Address Desc,u2.lives_with DESC,U2.Guardian Desc)
From Contacts
how to achieve 2 and 3?
The table script is attached. All the above columns are 1 or 0.