SQL & PL/SQL :: Retrieve Only Last Rank Row From Table?
Dec 2, 2010how do i retrieve only last rank row from table ?
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SQL & PL/SQL :: Join Query - Retrieve Last Or First Rank Row?
Dec 2, 2010the following statement gives each customer owns how many promotions.
Q:) how do i retrieve a customer who has max. promotions?
SELECT C.CUSTOMER_ID,COUNT(P.PROMOTION_ID)
FROM PROMOTIONS P,CUSTOMERS C
WHERE C.CUSTOMER_ID = P.CUSTOMER_ID
GROUP BY C.CUSTOMER_ID
=====================================================
CUSTOMER_ID COUNT(P.PROMOTION_ID)
-------------------------------------
001 | 5
002 | 8
003 | 4
004 | 6
005 | 5
006 | 3
PL/SQL :: Any Way To Get Rank Of Students Without Using RANK Function?
Mar 24, 2013I created a sample table named as "Student" with following data. table contains two columns only - stdid & marks.
stdid marks
10 75
20 60
30 60
40 45
50 30
I have to find the rank of students based on their marks in descending order.Is there a way to get rank without using RANK function?
Retrieve Nth Row From Table
Oct 12, 2010I have googled so much but unable to find the explanation how the following query work.
SELECT * FROM EMP a WHERE 2 = (SELECT COUNT(rowid) FROM EMP b WHERE b.rowid <= a.rowid);
How To Retrieve Table Schema
May 22, 2007I'd like to know which SQL command (if there is any) I can use to display the current schema of a table. I'm particular interested in knowing which columns are indexes.My privileges to the DB are quite basic (I think that I'nm only allowed to run SELECT statements
This is the Oracle version that I'm using:
Oracle9i Enterprise Edition Release 9.2.0.6.0 - 64bit Production
PL/SQL Release 9.2.0.6.0 - Production
CORE 9.2.0.6.0 Production
TNS for HPUX: Version 9.2.0.6.0 - Production
NLSRTL Version 9.2.0.6.0 - Production
Retrieve Data From A Table For Certain IDs
Apr 7, 2013I am writing a SQL inside an application to retrieve data from a table for certain IDs or for All employees based on the user's input. I create a variable :SELECTION for the where clause. When I run the SQL, I receive the error of missing right parenthesis. There is no error if I hard code the IDs.
If the input is 'All' -> the variable :SELECTION is blank so if the SQL :
select name, address, ID from employee :SELECTION
will be
select name, address, ID from employee
If the input of users ID as '1234','9999' - > the :SELECTION = ' where ID in (:VARIABLEID)'
:VARIABLEID = '1234','9999'
so the SQL:
select name, address, ID from employee :SELECTION
should be
select name, address, ID from employee where ID in ('1234','9999')
However, I got the missing right parenthesis error. I suspect it is something with the single quote, so I tried different ways, but it is still not working.
SQL & PL/SQL :: How To Retrieve Duplicate Rows From A Table
Jun 14, 2010How to retrieve duplicate rows from a table, suppose i don't know any column names. Without hard-coding column names I need to find.
View 5 Replies View RelatedSQL & PL/SQL :: Retrieve Hierarchical Data From Same Table
Nov 10, 2011Look into the below table:
TABLE :- EMPLOYEE
________________________
| ID | SUPERVISOR |
|_______________________|
| A101 | B102 |
|________|______________|
| | |
| B102 | C104 |
|________|______________|
| | |
| C104 | D108 |
|________|______________|
| | |
| D108 | E104 |
|________|______________|
Here B102 is supervisor of A101 and C104 is supervisor of B102 and so on. I want to get this data into new table in below format
TABLE :- Hierarchy
________________________________________________________________
| ID |SUPERVISOR_1 |SUPERVISOR_2 |SUPERVISOR_3 |SUPERVISOR_4|
|______________________|_____________|_____________|____________|
| A101 | B102 | C104 | D108 | E104 |
|________|_____________|_____________|_____________|____________|
| | | | | |
| B102 | C104 | D108 | E104 | NULL |
|________|_____________|_____________|_____________|____________|
| | | | | |
| C104 | D108 | E104 | NULL | NULL |
|________|_____________|_____________|_____________|____________|
| | | | | |
| D108 | E104 | NULL | NULL | NULL |
|________|_____________|_____________|_____________|____________|
| | |
| E104 | NULL | NULL NULL NULL
|________|_____________|_____________|_____________|____________|
I want to insert 1st two rows into Hierarchy table, then I would like to update Supervisor_2 to Supervisor_4. Here I don't want to use 'CONNECT BY PRIOR', as it take more time to execute (there are millions of records).SQL code for same.
SQL & PL/SQL :: Unable To Retrieve Rows From A Table
Mar 7, 2012I have created a table called ct_temp and it's structure is:
create table ct_temp(id char(2),srs number(3),amt number);
Result : Table Created
I now insert the following rows into the table:
id srs amt
1 62 30000
2 65 50000
3 65 70000
4 65 80000
5 62 16000
6 65 10000
7 65 100000
8 65 10
Commit
Then I issue the following query to retrieve data based on a specific criteria (Actually I have condensed the table and data because in Production, I have large number of rows; so for simplicity I am using 8 rows with one table)
criteria : I then want to retrieve the following:
for srs = 62, all values that is greater than 10,000
Answer: select decode(srs,62,ab.amt)temp1 ,decode(srs,65,ab.amt)temp2 from ct_temp ab
where decode(srs,62,ab.amt)>10000
Works like a charm and retrives the results.
Now comes the big issue
I want to retrieve the values for srs = 62 which is greater than 10,000 and at the same time I also want to retrieve the values for srs = 65 which is less than srs = 62.
Typically I wrote the query as:
select decode(srs,62,ab.amt)temp1 ,decode(srs,65,ab.amt)temp2 from ct_temp ab
where decode(srs,62,ab.amt)>10000
and decode(srs,65,ab.amt)<decode(srs,62,ab.amt)
I should atleast get one row for srs = 65 which is id # 8 but it displays blank rows or "no rows returned".
I am actually preparing a ad-hoc report for the business analyst and stuck at this step due to which I am unable to proceed any further. I have used DECODE function because of the requirement specified by Business Analyst.
I have tried the following in the office:
using EXISTS operator = no luck
using INLINE VIEW = no luck
Is there any way around?
SQL & PL/SQL :: How To Retrieve Data That Does Not Exists In A Table
Dec 13, 2011I have the following table with the some sample data:
|| Filename || receiving_site || originating_site ||
| fileA | siteA | HQ |
| fileA | siteA | siteA |
| fileB | siteA | HQ |
| fileA | siteB | HQ |
| fileA | siteB | siteB |
| fileB | siteB | HQ |
| fileB | siteB | siteB |
The table works in such way:
1. For each of the Filename, if originating_site is not the same as receiving_site, it means that the file has been sent to receiving_site but has not been acknowledged received yet.
2. For each of the Filename, if originating_site is the same as receiving_site, it means the file has been sent and received by the receiving_site.
My task is to list out all the Filename per receiving_site that has been sent, but not received yet by the receiving_site. For example from the sample data above, I am expecting to see that siteA, fileB has not been received yet.
How can I do that? I had tried MINUS and NOT EXISTS command, but I am just not able to get the result that I want.
SQL & PL/SQL :: Retrieve Subset Of Data From Table
Jan 20, 2012How to retrieve first hundred records from a table ?
FYI
---
The table size is 5 GB
The table count is 127922653
Table has 14 columns
Table is partitioned as well.
The table has 10 partitions.
SQL & PL/SQL :: How To Retrieve 100th Row To 120th Row From Table
Jul 18, 2012A table has 150 records. How do you retrieve 100th row to 120th row from that table ?
View 9 Replies View RelatedPL/SQL :: Use Loops To Retrieve Name Of Emp Table Of Scott Schema
Jan 12, 2013i am trying to use loops to retrieve the ename of emp table of scott schema , then under they are retrieved , all "sal" values appear under them , i do not want employee's salary under each employee , i need retrieve the 14 record of enames , then under them the 14 record of sal column appears , so i used this code :
declare
cursor emp_cur is
select ename from emp;
emp_rec emp_cur%rowtype ;
[code]....
Table Locking When Many Users Retrieve Data
Sep 2, 2009I have a "select ... into" in my PL/SQL and it doesn't retreive any data(I suppose just certain columns because if it doesn't retreive a row then the PL/SQL should throw an error) when there are many users accessing this table. It shouldn't be some table locking right? Because if it is, it should wait until the table is available then it will retreive data. Currently it just proceeds with the PL/SQL and selecting nothing in that query. what details should I look at to trace the cause of this problem.
View 4 Replies View RelatedPL/SQL :: How To Retrieve Data Delete From Main Table
Nov 10, 2012I am using oracle 11g database.
unforunatly i delete the data from main table. and i operated alter stmt.
now how do i retrieve the data..??
Windows :: How To Retrieve The Blob Column Data From Table
Mar 7, 2011I use the oracle 10g database.I am trying to insert and retrive the image.Inserting an image is done.but while retrieving an image iam getting an run time exception in java "java.sql.sqlexception:general error".i am not able to understand this.
The code to insert the image is
FileInputStream fi=new FileInputStream(f);
int size = fi.available();
System.out.println("j"+size);
byte b1[] = new byte[size];
i=fi.read(b1,0,size);
System.out.println("i"+i);
st.executeUpdate("insert into image1 values('b1',"+k+")");
when i am retrieving the image i tried like this
ResultSet rs=st.executeQuery("select imagecolumn from tablename");
here iam getting an exception as i named above.
SQL & PL/SQL :: Unable To Retrieve Multiple Values / Possibility From A Table?
Jun 1, 2010I have a table called table1 and its structure is as follows:
rtrn_id number,
entp_abn number,
litm_line_item_nbr number
country_code varchar 2(10)
I am trying to find retrieve value/row where for a particular rtrn_id , the possibility of having a country code of "CA"(for Canada) and "US" or "HK" (US or Hong Kong respectively) exists.
I framed my query the following way and it does not retrieve any result in Production and I believe there are a few values/rows in the "table1".
The query framed is:
Query 1:
SELECT rtrn_id,entp_abn,litm_line_item_nbr,country_code
FROM table1
where schd_version_yr = 2010 and prog_program_cd = '01'
and sched_nbr = '000' and (litm_line_item_nbr = '023' and country_code 'CA')
and (litm_line_item_nbr = '016' and country_code = 'CA')
The above query does not retrieve any rows
Where as if I run a query individually it retrieves tons of rows
(Individual query :
SELECT rtrn_id,entp_abn,litm_line_item_nbr,country_code
FROM table1
where schd_version_yr = 2010
and prog_program_cd = '01'
and sched_nbr = '000'
and (litm_line_item_nbr = '016' and country_code = 'CA')
-----Retrieves tons of rows as the country code = Canada for line item # 16
SELECT rtrn_id,entp_abn,litm_line_item_nbr,country_code
FROM table1
where schd_version_yr = 2010
and prog_program_cd = '01'
and sched_nbr = '000'
and (litm_line_item_nbr = '016' and country_code 'CA')
-----Retrieves tons of rows as the country code IS NOT Canada for line item # 23.
There is a possibility that there are rows that have country Code as Canada and not Canada for a particular ID whose line item numbers could be 16, 23.. is there any better way to frame my Query1 to retrieve values/rows?
Forms :: Select Table Name And Retrieve Its Related Data
May 29, 2012I wanna have a form which has a list box which is including of all table names, by selecting the required table by user all column name and its related data should be retrieve.I have a cursor which give me all field names related to the table by I do not know how can I retrieve table data:
1. How to add item through block base on number of column which selected table has.
2. How to set value of table column in these mentioned column which added in the block.
3. And at the end retrieve the table data.
SQL & PL/SQL :: Retrieve All Data From Table And Print Out Each Customer Info One By One
Nov 15, 2010How similar is PL/SQL to SQL? I'm trying to retrieve all data from a customer table and print out each customer information one by one:
DECLARE
CURSOR all_customer IS
SELECT *
FROM customer;
BEGIN
DBMS_OUTPUT.PUT_LINE(all_customer);
END;
but I really don't know the correct syntax. The Powerpoint slides the professor gave is not useful at all.
Forms :: Hierarchical Tree - Retrieve Values And Insert Into Table
Apr 19, 2010My Form consists two Hierarchical trees. When I select a node from first tree and I press Move Right (>>) Button the selected node should move to the second tree. Similarly when I select a node from second tree and press move Left button(<<) it should move to the first tree.
I also want to know want to insert values Into New Table using node values from The Displayed Hierarchical Tree. How to retrieve values using populate_Group_from_tree and insert into table.
Forms :: How To Retrieve Records From Table Without Using Data Block Wizard
Jun 17, 2012i want to retrieve records of empno from SCOTT.EMP talbe in form but without data block wizard using ..how .. and what logic will be in coding
DECLARE
TYPE EROC IS TABLE OF VARCHAR2(200) INDEX BY BINARY_INTEGER;
E1 EROC;
NO_EMPNOVARCHAR2(2000);
[code]....
just caling here EMPNO and :v_empno is fields on form...
SUM TOP N Values Using Rank?
Jul 20, 2010I certainly know this is possibly but I am trying to do this on the fly and can't seem to work it out:
I have a table A:
ID Name Priority
-------------------
1 Smith 1
1 SSmith 2
1 ASmith 3
1 BSmith 3
2 John 2
3 Ed 1
and I am looking to create the following table from this:
ID Name Sum(Top3Priority)
--------------------------------
1 Smith,SSmith,etc 8
Now, I've got listagg working and everything appears to be going swimmingly but: for every listagg grouping on name I need to only sum the highest top 3 priorities. So in the example above there are four Smiths but I need to only sum the top 3 priorities which are 3,3,2 and ignore the 1 even though I do want all the listagg Smith's (SSmiht, ASmith, etc) in there.
Now I can sum the priority, but don't really know how to sum only the top 3 in any ID ? There can be 1 to n ID's so if there are only 2 ID's I want to sum those 2, if there are 3 all 3 and 4 upwards only the top 3.Here is a snippet of the SQL I am using
SLECT id,
listagg(MN_CR_LOOKUP.f_name, ',') within group (order by Priority)) roadname,
**** sum top 3 here ?****
count(*) "NumI", Sum("Elevation") "CombinedElevation"
FROM jc,
[code]...
PL/SQL :: Using Lag And Rank In The Same Query
Mar 10, 2013I am trying to find out the difference in time between peoples memberships and also the order that these memberships are taken out in. So far I have added in a rank statement to work out the order the memberships were created in, but now want to look at the difference between the dates returned. The SQL I used is:
SELECT owner_party_id,
mem_number,
support_id,
mem_start_date,
RANK() OVER (PARTITION BY owner_party_id ORDER BY mem_start_date ASC) MEMBERSHIP_SEQUENCE
FROM membership_all
WHERE version_type = 'CUR'
AND owner_party_id IN ('65051', '65051', '65348', '65348', '65607', '65607', '65607')
to get:
"OWNER_PARTY_ID"|"MEM_NUMBER"|"SUPPORT_ID"|"MEM_START_DATE"|"MEMBERSHIP_SEQUENCE"
65051|318874751|8014747|01-MAR-10|1
65051|412311060|21502883|15-AUG-12|2
65348|308672459|3526913|01-MAY-10|1
65348|409951130|20950524|18-JUN-12|2
65607|315830192|7510133|17-MAY-10|1
65607|406448110|20024246|16-MAR-12|2
65607|409738130|20903556|14-JUN-12|3
Now I would like to calculate the difference between the start dates of each of the owner_party_id groups, so to get something like this:
OWNER_PARTY_ID|MEM_NUMBER |SUPPORT_ID|MEM_START_DATE |MEMBERSHIP_SEQUENCE|Diff
65051|318874751|8014747|01-Mar-10|1|
65051|412311060|21502883|15-Aug-12|2|898
65348|308672459|3526913|01-May-10|1
65348|409951130|20950524|18-Jun-12|2|779
65607|315830192|7510133|17-May-10|1
65607|406448110|20024246|16-Mar-12|2|669
65607|409738130|20903556|14-Jun-12|3|90
I think that I need to use the Lag function in, but I am not too sure if it can be linked to look at the data within a grouping of owner party id, as it would make no sense to calculate the difference in dates for two different owner party ids.
SQL & PL/SQL :: Returning First Rank After Aggregating
Mar 27, 2013I need to return which hour for a given date range had the most calls. I have a query that works but it is inelegant and I'm pretty sure I could do better. I'm pretty new to analytic queries so go easy...
select hour,
calls
from
(
select hour,
calls,
rank() over (ORDER BY calls desc) as ranking
from
(
[Code]....
Performance Tuning :: Retrieve Data From View Or Mention Table Names Directly?
Aug 11, 2011base on performance it is better to retrieve data from view or mention the table names directly?
I have a select statement in from clause one of my table is view (which is having data collected from four tables) my question is whether performance of querry will be improved if i use directly all tables( four tables of a view) instead of a view
SQL & PL/SQL :: Rank Based On Multiple Conditions
Oct 4, 2013I've below table.
with tmp_tbl as
(select 'H1' as hh_id, 'C1' as cust_id, 2 as f_rnk, 'F' as gender, to_date('20130102','YYYYMMDD') as purch_dt, to_date('20100203','YYYYMMDD') first_dt from dual
union
select 'H1' as hh_id, 'C2' as cust_id, 1 as f_rnk, 'M' as gender, to_date('20130102','YYYYMMDD') as purch_dt, to_date('20100303','YYYYMMDD') first_dt from dual
union
select 'H1' as hh_id, 'C3' as cust_id, cast(null as number) as f_rnk, 'U' as gender, to_date('20130103','YYYYMMDD') as purch_dt,
[code].....
Now i need to rank each cust_id in each hh_id based on below conditions.
1) If atleaset one cust_id in hh_id has f_rnk then gender 'F' with highest f_rnk (more then one F with same f_rnk then the one with oldest first_dt), if no 'F' then gender 'U' with highest f_rnk ((more then one F with same f_rnk then the one with oldest first_dt)), if no 'F' and 'U' then consider 'M' (more then one M with same f_rnk then the one with oldest first_dt).
2) If the above is not met (no cust_id in hh_id has f_rnk populated) then i've to rank based on purch_dt. Gender 'F' with recent purch_dt (if more than one F in household with same purch_dt then the one with oldest first_dt), if no 'F' then gender 'U' with recent purch_dt (if more than one U in household with same purch_dt then one with oldest first_dt), if no 'F' and 'U' then consider 'M' (more than one M in household with same purch_dt then the one with oldest first_dt).
3) If the above criteria is also not met, then rank based on gender_cd. Gender 'F' will have first preference then 'U' and then 'M'.
My output :
HH_ID CUST_ID F_RNK GENDER PURCH_DT FIRST_DT F_RNK_RANK PURCH_RANK GENDER_ONLY_RANK
----- ------- ---------- ------ ----------- ----------- ------------ ------------ -----------------
H1 C1 2 F 1/2/2013 2/3/2010 1
H1 C2 1 M 1/2/2013 3/3/2010 2
H1 C3 U 1/3/2013 4/3/2010 3
H2 C4 F 4/3/2013 10/2/2009 2
H2 C5 M 5/5/2013 8/8/2010 1
H3 C6 F 5/6/2008 1
H3 C6 M 7/8/2010 2
I've tried below query with one condition, but it's giving f_rnk_rank for all records. How can i include multiple conditions in the rank function.
with tmp_tbl as
(select 'H1' as hh_id, 'C1' as cust_id, 2 as f_rnk, 'F' as gender, to_date('20130102','YYYYMMDD') as purch_dt, to_date('20100203','YYYYMMDD') first_dt from dual
union
select 'H1' as hh_id, 'C2' as cust_id, 1 as f_rnk, 'M' as gender, to_date('20130102','YYYYMMDD') as purch_dt, to_date('20100303','YYYYMMDD') first_dt from dual
union
select 'H1' as hh_id, 'C3' as cust_id, cast(null as number) as f_rnk, 'U' as gender, to_date('20130103','YYYYMMDD') as purch_dt, s hh_id, 'C5' as cust_id,
[code]....
SQL & PL/SQL :: Way When Doing Rank Function In PL/SQL To Pass Field
Jul 13, 2011there is a way when doing the Rank Function in PL/SQL to pass the field that will be ranked as an override.
SELECT rank(p_ColumnAmt) within group (order by p_ColumnNm desc) rank
INTO v_RnkNoAmt
FROM Table_name
WHERE ??????;
p_Column is the amount I am ranking
p_ColumnNm is the actual field name to Rank.
When I pass the field name with an override I do not get the correct rank back. If I run the Select with the actual field name curr_1_mth_amt, I get the correct rank.
I have about 70 different field to Rank and do not want to make a procedure for each field.
SQL & PL/SQL :: Rank Result With Respect To Order
Feb 1, 2012I have a SQL statement that return the following result.
col1
----
a
a
b
b
a
c
c
c
c
What i need is to eliminate the duplication and return the result as the following.
col1
----
a
b
a
c
Using group by or distinct will eliminate the third row "a" and will not return it ordered.My idea is to generate another column that rank the result as following.
col1rank
------------
a1
a1
b2
b2
a3
c4
c4
c4
c4
so using the following SQL query will return the result as needed
select col1, rank
from T
group by col1, rank
order by rank;
col1rank
------------
a1
b2
a3
c4
SQL & PL/SQL :: Rank / DECODE Most Popular / Most Used Term
Mar 26, 2012I have this code which simply gives me the count of term.
SELECT
OUA_ID
,COALESCE (MAX( DECODE( TERM, 0603, TERM_COUNT, NULL ) ), 0 ) "TERM_0603_CNT"
,COALESCE (MAX( DECODE( TERM, 0702, TERM_COUNT, NULL) ), 0 ) "TERM_0702_CNT"
,COALESCE (MAX( DECODE( TERM, 0705, TERM_COUNT, NULL ) ), 0 ) "TERM_0705_CNT"
,COALESCE (MAX( DECODE( TERM, 0707, TERM_COUNT, NULL ) ), 0 ) "TERM_0707_CNT"
FROM(
SELECT DISTINCT
OUA_ID, TERM_COUNT, TERM
FROM(
SELECT OUA_ID, TERM ,PROVIDER_CDE, COUNT(*) TERM_COUNT
FROM TABLE
WHERE PROVIDER_CDE = 'BILL'
GROUP BY OUA_ID, TERM, PROVIDER_CDE)) GROUP BY OUA_ID
Gives:
OUA_IDTERM_0603_CNTTERM_0702_CNTTERM_0705_CNTTERM_0707_CNT
32710 0 3 7 0
45726 2 0 1 0
Is there a way i could used the rank function (with decode) to only display the 1ST (First) and 2nd(Second) most used term per OUA_ID?
So i get this:
OUA_ID1st MOST USED2nd MOST USED
3271 705 702
45726 603 705
PL/SQL :: Rank Function And Duplicate Records
Aug 30, 2012I have the following table :
CREATE TABLE A_TEST (A INTEGER, B INTEGER, C INTEGER, D INTEGER, FLAG CHAR(11));
INSERT INTO A_TEST (A,B,C,D) VALUES(1,2,3,4);
INSERT INTO A_TEST (A,B,C,D) VALUES(2,4,5,8);
INSERT INTO A_TEST (A,B,C,D) VALUES(1,2,3,4);
INSERT INTO A_TEST (A,B,C,D) VALUES(2,4,5,8);
[code].......
I would like to perform an update on the FLAG column by setting to "D" if it is a duplicate record.1,2,3,4);
I would like to use the rank function.
Desired update:
A B C D FLAG
1 2 3 4
2 4 5 8
1 2 3 4 D
2 4 5 8 D
7 2 3 4
9 2 3 4
7 2 3 4 D
1 2 3 4 D
5 4 5 8
2 2 3 9
2 4 5 8
6 2 3 4
1 3 3 4
8 2 8 4
