There is a simple table prod having a column crlf.i did the following
Quote:
SQL> update prod set crlf=null;
716 rows updated.
SQL> commit;
Commit complete.
SQL> select * from prod where crlf=null;
no rows selected
why NO row selected against last query?
I have table T with 50,000 rows
create table T
(student_id number,
class_id number,
quiz_id number,
marks number)
some sample rows like
INSERT INTO T VALUES (1,1, 1, 50);
INSERT INTO T VALUES (2,2, 2, 40);
INSERT INTO T VALUES (3,1, 3, 34);
INSERT INTO T VALUES (1,1, 4, 10);
INSERT INTO T VALUES (1,1, 5, 30);
INSERT INTO T VALUES (1,1, 6, 29);
INSERT INTO T VALUES (3,2, 7, 34);
INSERT INTO T VALUES (3,2, 8, 33);
INSERT INTO T VALUES (3,2, 9, 56);
INSERT INTO T VALUES (1,1, 7, 90);
INSERT INTO T VALUES (2,2, 8, 0,);
INSERT INTO T VALUES (1,1, 8, 80);
INSERT INTO T VALUES (2,2, 8, 65);
INSERT INTO T VALUES (1,1, 9, 34);
INSERT INTO T VALUES (2,2, 9, 11);
each student belongs to one class_id. each student participates in many quizes. each quiz has its unique id. each student can appear once in a quiz_id
I am doing the below analysis and query:
1. with below query I am finding which student_id had most marks in any 3 successive quizes (see the 3-1 part below) in the query..
SELECT QUIZ_ID,
STUDENT_ID,
SUM (MARKS)
[Code]....
SQL> /
QUIZ_ID STUDENT_ID CONSECMARKS
---------- ---------- -----------
7 1 170
6 1 166
8 1 129
5 1 106
8 3 89
8 2 76
3 3 68
7 3 67
8 2 65
1 1 60
9 3 56
9 1 49
2 2 40
4 1 40
9 2 11
15 rows selected.
With above query, I can play around and find for any 'n' number of consecutive quizes, like marks in 2 consecutives quizes, 3, 4 and so on but for each 'n' value I've to run a seperate query mentioning (2-1) or (3-1) or (4-1) and so on..
since my table is big and there are about 400 quizes so what I want to find out is for each 'n' consecutive quiz (from 1 to 400) which student had most marks for each consecutie 'n' quiz. Like in 1 (consecutive) quiz which student had the highest marks and then 2 conseuctive quiz who had most marks and then in 3 consecutive quiz who had most marks and so on till 400 consecutive quiz who had most marks... rather than running query for each 'n' value seperately i want a single query that can give me a summary of most marks in each n consecutive quizes...
my sample output is:
Nth consecutive quiz student_id sum(marks)
1 1 90
2 1 170
3 1 246
4
.
.
.
100
.
.
200
.
.
300
.
400 ? ?
Is this possible to get the above output from one single query? If there are two or more students with equal most marks for any 'n' conseutive quizes then both should come in the summary.
create table call(id number(10) primary key,mobile_no number(10), other_no number(10), call_type varchar2(10),call_date_time date, duration number(10));
insert into call values(1,9818764535,9899875643,'IN','24-APR-13 02:10:43',10);
insert into call values(1,9818764535,9898324234,'IN','24-APR-13 05:06:78',10);
insert into call values(1,9818764535,9215468734,'IN','24-APR-13 15:06:78',10);
insert into call values(1,9818764535,9899875643,'OUT','25-APR-13 01:06:78',10);
insert into call values(1,9899875643,9899875643,,'OUT','25-APR-13 22:06:78',10);
Query : need to find first and last call of '9818764535' mobile number and of call_date between '24-apr-13' and '25-apr-13';
Result :
date ,mobile_no , other_no, call_type, duration
24/apr/13 , 9818764535,9899875643,'IN',10
24/apr/13 ,9818764535,9215468734,'IN',10
[Code]....
I have homework due, and I'm so stuck: This worked when I first ran it, and now all 6 queries return the same error No Rows selected. I did have to add a column to a table, and insert data for that column before this worked.
> --------------------------
> --REPORT 1
> ---------------------------
SELECT sur.channo,
supp.supplierid,
sur.packtype,
program_name,
ratingcode,
[code]....
i have many user tables in my database and i want to truncate selected tables and how i can overcome this scenario.
i can truncate using truncate table <table_name> but they are 250 tables to truncate, so,i can't write truncate command for every table. if i want to truncate first i have to truncate parent table or child table and how i can find parent table and child table for given tables to truncatein my database.
DB 11G , OS Linux Redhat , i have a Linux script to read the name of the files listed on the Table , then open those files and save the content on another table , i need to speed up the process by running this script multiple time , so i need toread the first record (File name ) then running the script again to check if the record already selected then go to the second record and so on . is there any way to check the selected row then leapfrog this record and going to the next record . Im already tried (for update skip locked ) but this will return ( no row selected message when locked ) and when running on the 2 Scripts it will considering it as same session and always will be the same . my query is (select bi_file_namefrom dbm_cdr_headwhere bi_file_name like 'hd_auto%' and bi_auto_status=35;)
View 3 Replies View RelatedI have two problems.
1.I have the following query--
select name from user_snapshots where type = 'COMPLETE';
I can't do anything except running 'select' statement. NO PL/SQL as well.
how to wrote a query that counts the number of rows in individual materialized views selected by the above query.
2. How to store the result of a select statement into a variable using SQL (not PL/SQL)
select count(*) from tab;
now I want to store count of tables into a variable. Is it possible?
I have multi record block and a select checkbox in that block. My requirement is whenever I select any checkbox all other checkboxes should get deselected except the one which I have selected just now.
Example: I started from first item (checkbox).
I select first checkbox and when I will select second checkbox, then 2nd should get checked but all other checkboxes should get unchecked.
Can we select table's rows of 5 to 15, like
select * from emp
where rowid <=5;
It is through an error when i used the below method.
select * from emp
where rowid >=5 and rowid <=15;
i need to exp/import select ted tables and views
i know how to do exp/imp tables, but how to do views
My product 10g/linux
I am trying to run the following queries in my database.
Q-1)select * from item where trunc(approval_date)='21-MAY-13'
When Q-1 is executed it returned row that has approval_date of 21-MAY-13 from database.
Q-2)select * from item where approval_date=to_date('21-MAY-13')
When Q-2 is executed it says no rows selected.
difference or if any links related to this.
I'm attempting to write a plsql for finding missing archived logs for streams.
requirement is to run a select statement and print
1. 'NOT FOUND' if name column is null
2. '<name of the files>' if rows are returned
3. 'NOT FOUND' if no rows are selected. (here is were i'm having trouble)
code i developed so for:
for cr in (select decode(name, NULL, 'NOT FOUND', name) from v$archived_log where deleted='YES'
and status!='A')
loop
if (cr.name = 'NOT FOUND')
[code]...
I trying to deploy contract management in the weblogic server 12c . using the ear file in the following location
C:Program FilesOracleContractManagement_1earexpedition.ear
When i click on next I get the series of error. Really I don't understand this What are these errors,
Unable to access the selected application.
Exception in AppMerge flows' progression
Exception in AppMerge flows' progression
Unable to resolve deadlock in factory claims
Unable to resolve deadlock in factory claims
I am having a requirement like below,
Scene 1:
If duplicate records found for SSN,BWE with SAME DATE_CREATED than take the record with HIGHEST DATE_MODIFIED.
Table Structure:
SSN BWE DATE_CREATE DATE_MODIFIED
123 01-JAN-2008 02-JAN-2009 03-JAN-2014
123 01-JAN-2008 02-JAN-2009 03-JAN-2013
Output needed:
SSN BWE DATE_CREATE DATE_MODIFIED
123 01-JAN-2008 02-JAN-2009 03-JAN-2014
Scene 2:
If duplicate records found for SSN,BWE with different DATE_CREATED than take the record with HIGHEST DATE_CREATED.
Table Structure:
SSN BWE DATE_CREATE DATE_MODIFIED
123 01-JAN-2008 02-JAN-2009 03-JAN-2014
123 01-JAN-2008 04-JAN-2009 03-JAN-2013
Output needed:
SSN BWE DATE_CREATE DATE_MODIFIED
123 01-JAN-2008 04-JAN-2009 03-JAN-2013
How to achieve this requirement. My source data has 25 million of records like this.
I have facing the below problem while the executing the query,
SELECT tmp1. *
FROM
tmp1
LEFT OUTER JOIN tmp2 ON tmp1.NUM_MAIN_ID = tmp2.NUM_MAIN_ID;
ORA-22992: cannot USE LOB locators selected FROM remote TABLES
Tmp1 TABLE as CLOB field.
Tmp1 is remote TABLE, for which i have given dblink
I have 2 blocks, namely addsubject3rd and chosensubjects. I'm copying the selected records(this comes with checkboxes) from the 1st block to the second block. But what happened is that it copied all the records that are on the addsubject3rd. How can I copy only selected records(checkboxes) from addsubject3rd block to chosensubjects blocks?
View 5 Replies View RelatedI am creating one application in oracle forms in which one push button is dere for dept_list and textbox for displaying dept_name, after clicking button it shows list of dept_id and dept_name in listbox. and after selecting any one value from it adding into textbox of dept_name and update it. How to do this in oracle forms 6i?
View 2 Replies View RelatedI've got a problem with binding my selected data from one data block to another. When I'd finished selecting my data(subjects in this case),
and I clicked schedule button, my selected data were not bound into the textboxes in schedule datablock.this what happened.the code i used in when-checkbox-changed trigger:
BEGIN
IF :NEWSTUDENTS.cb_subj = 'N' THEN
Clear_record;
ELSIF :NEWSTUDENTS.cb_subj = 'Y' THEN
:SCHEDULE2.Subject := :newstudents.subject_code;
END IF;
END;
and in tree-node-activated trigger:
MEssage('FOR LOOP - subj_code = ' || subj_rec.subject_code);
:NEWSTUDENTS.subject_code := label_of_mynode;
:NEWSTUDENTS.subject_= subj_rec.subject_code;
:NEWSTUDENTS.units:= subj_rec.units;
MESSAGE('POSITION OF CURSOR ' || :SYSTEM.CURSOR_RECORD);
[code]....
We've an accounts table that basically represents hotel chains & brands. an example shown below.
account_id chain_id brand_id service1
NULL NULL 111
NULL NULL 122
NULL NULL 11
Here I want to update the chain_id & brand_id which are currently NULL in order to make every row eligible for further processing.
There is another table(say chain_brand) which maintains the relationship between chain_id and brand_id. one chain_id can have multiple brand_ids eg.,
chain_id brand_id
101 2011 101
2012 102 2020
Now I need a script that could randomly pick values from chain_brand table and update the accounts table. condition is those values should be unique for an account_id eg.,
account_id chain_id brand_id service1
101 2011 111 101
2011 122 102 2020 11
so each account can be attached to only one chain_id and one brand_id.
somehow cannot understand why index is not used
in Oracle Database 11g Release 11.2.0.3.0 - 64bit Production
1. Included only indexed column and got a perfect plan
explain plan for2 select s.x_cnt
3 from reported_summary s
4 where s.x_cnt>0;
PLAN_TABLE_OUTPUT
--------------------------------------------------------------------------------
Plan hash value: 2674489506
-------------------------------------------------------
| Id | Operation | Name | Cost (%CPU)|
-------------------------------------------------------
| 0 | SELECT STATEMENT | | 306 (8)|
|* 1 | INDEX FAST FULL SCAN| S_NUI01 | 306 (8)|
-------------------------------------------------------
Predicate Information (identified by operation id):
---------------------------------------------------
1 - filter("s"."x_CNT">0)
2. Included some other column and got TABLE ACCESS FULL
explain plan for2 select s.x_cnt,s.ru_id
3 from reported_summary s
4 where s.x_cnt>0;
PLAN_TABLE_OUTPUT
--------------------------------------------------------------------------------
Plan hash value: 2142873335
---------------------------------------------------------------
| Id | Operation | Name | Cost (%CPU)|
---------------------------------------------------------------
| 0 | SELECT STATEMENT | | 2421 (3)|
|* 1 | TABLE ACCESS FULL| REPORTED_SUMMARY | 2421 (3)|
---------------------------------------------------------------
Predicate Information (identified by operation id):
---------------------------------------------------
1 - filter("s"."x_CNT">0)
3. Included all other columns and got TABLE ACCESS FULL as well explain plan for2 select s.x_cnt,s.* 3 from reported_summary s 4 where s.x_cnt>0;
PLAN_TABLE_OUTPUT
--------------------------------------------------------------------------------
Plan hash value: 2142873335
---------------------------------------------------------------
| Id | Operation | Name | Cost (%CPU)|
---------------------------------------------------------------
| 0 | SELECT STATEMENT | | 2421 (3)|
|* 1 | TABLE ACCESS FULL| REPORTED_SUMMARY | 2421 (3)|
---------------------------------------------------------------
Predicate Information (identified by operation id):
---------------------------------------------------
1 - filter("s"."x_CNT">0)
I'm trying to pull all the degrees into a table based on which institution is selected. If institution is 'AAA' or 'BBB' then pull ACAD_PLAN, DESCR by ACAD_PROG where ACAD_PROG >= some value and <= some other value.
If institution is 'CCC' then pull ACAD_PLAN, DESCR by institution regardless of ACAD_PROG.
Something like
INSERT INTO table
SELECT
'value_a'
[Code].....
I don't have this formatted right cause it keep telling me missing keywords.
Can I apply Referential Integrity to only selected rows of a particular column? This is the reference key to the primary key to another table. But, the issue is, this reference column is not having mandatory data for all the rows. So, whenever this is null, I dont want it to be referred by parent table.
no, and it makes no sense to do so either
We have an appointment form in our HIS, where patients take telephonic appointment. That time they may not know their user id given by hospital. So, it remains blank & name is entered manually. But if the user-id is entered, it must fetch patient name from the master.
The candidate key must be unique within its domain.The candidate key can not hold NULL values.
ALTER TABLE HLTHCHKAPPOINTHD ADD (
CONSTRAINT SYS_C007145
FOREIGN KEY (N_PATIENTMR_ID)
REFERENCES MRREGISTRTNHD (N_PATIENTMR_ID));
MRREGISTRTNHD is a patient master & has a primary key named N_PATIENTMR_ID.
HLTHCHKAPPOINTHD is a appointment table & has a foreign key named N_PATIENTMR_ID which references N_PATIENTMR_ID of MRREGISTRTNHD.
Also, N_PATIENTMR_ID of HLTHCHKAPPOINTHD is not a unique key & it can contain null values also. I want to define constraint or any other method such that only the not null values are referenced to the master i.e. it should validate in the master. And null values should skip this reference.
Now, what happens is due to this constraint, when I'm trying to edit & update the rows having null value in N_PATIENTMR_ID, it gives the following error.
ORA-02291: Integrity constraint (SYS_C007145) violated - parent key not found
So, can I give some condition in the above constraint saying, apply this constraint to table HLTHCHKAPPOINTHD only having the not-null values in N_PATIENTMR_ID coulmn?
I have 3 types list items:
1) :1 Day -> 31
2) Month: 1 -> 12
3) Year :1990 -> 2013
I want to check that the user has selected a valid date .. if not an error message will be displayed, for example: 31-02-2013: will be rejected
i have a requirement to create a query which gets the same month from the previous year of the selected date .
Example : i select SEP-2011 ( as sysdate )
it will return the SEP-2010 as well .
here is the code which works fine with sysdate, dual :
SELECT
TO_CHAR(ADD_MONTHS(SYSDATE,-12),'MON-YYYY') TMLY, TO_CHAR(SYSDATE,'MON-YYYY') TMTY FROM DUAL;
in my schema table Ive got a filed named PERIOD_NAME (varchar2) , which holds date values in ( Mon-YYYY ) format (e.g Sep-2011)
am unable to apply the above code on it , i guess its the data type pf the field .
I'am having a query regarding population of a list item based on another selected list item that is whenever i select the state from the combo box all the city's under that state should be automatically populated.
View 4 Replies View RelatedI want to take backup of selected data from tables of a schema (as huge data, that is not used, causing slow query performance) I planned to create a seprate backup schema and tablespace to store the data from these tables. Then write procedures that can move the data to and fro among table of those schema. And create partitioned index on those backup tables.
View 11 Replies View RelatedHow to extract the selected color from the ColorPicker bean. I managed to display the ColorPicker bean but i am not able to retrive the color.
How to set the selected color from ColorPicker as background of the form.
I'm using apex 4.1 and create a page with Interactive report with one default primary report and several default alternative report. when i selected one alternative report, how do i know which one is i picked up? it looks obvious to the user but my point is when the user switches to another page, or there are something should change based on the selected report, i want the user see the new page with-in the context of what have selected for that IR report. for example, i have a "summary" report based on year, so the alternative report will be year-2011, year-2012, etc, when user selected this year, 2012, on the same IR page, there is another report based on year 2012, when user selected 2011, that report should show 2011 report.
View 0 Replies View RelatedAm using the SQL*PLus tool via a command line to execute some simple "select" scripts. Scripts work fine in what they produce - except for something that is missing occasionally.
For SOME scripts, I'm getting no "xx Rows Selected" type messages at the bottom and I can't figure out why. When no data si returned in some (different) scripts I do get a "no rows selected" message. Am looking for this message in all outputs as an "end of report"-style marker.
No complicated SQL logic and I have the following standard settings applied into each script.
set linesize 500
set pagesize 50000
set tab off
set wrap off
set colsep '|'
I have 20 years of coding experience so it's not a basic error....albeit I'm far more familiar with MS SQL Server product set as well as the PL/SQL Developer client front ends for Oracle.
Suppose There are Four options in a Radio Group. From this whichever option I select using the Mouse that option must be Inserted in the Database table field.
How to do this Using Radio Buttons.
Also If I want to select more than One Option Then I use Check Box. For this Also When I select two or three options simultaneously then these values must be Inserted in the Database Table Fields.