Apply Referential Integrity To Only Selected Rows Of Particular Column?
Mar 23, 2011
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?
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Mar 23, 2011
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.
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Feb 2, 2012
Referential Integrity is very important in Oracle database. Consider a scenario where constraints were applied to a database but never enforced on. Only application code was leveraged over the past 1 year to manage this logic.
Over the course of the year there might have been lot of Row Violations which might have led to Data Inconsistency Issues.Do we have a Script, Tools in Oracle which flag all row level violations with referential integrity now being turned on.
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May 23, 2012
I am using Datapump import using database link to import an entire schema from another Server but it gives issues with constraints.I tried to first only import the metadata and then disable the constraints and import data and enable constraint but in this case the temp tablespace keeps filling up and i am out of space. Is there any method to do a full import including constraints and indexes.
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Jun 23, 2013
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]....
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Jun 8, 2012
What is the best practices to maintain aggregate columns? Suppose I have the following 2 tables:
DROP TABLE TEST.ORDERS_DET_T;
DROP TABLE TEST.ORDERS_T;
CREATE TABLE TEST.ORDERS_T (
ID NUMBER NOT NULL PRIMARY KEY,
ORDER_CODE VARCHAR2(100) NOT NULL,
[code]....
I want the following test script to act int the way, described in comments. Basically this means that the sum of TEST.ORDERS_DET_T.ORDER_DET_SUMA must be equal to TEST.ORDERS_T.ORDER_SUMA after transaction commits.
INSERT INTO TEST.ORDERS_T(ID, ORDER_CODE, ORDER_SUMA) VALUES(1,'FRUITS',100);
INSERT INTO TEST.ORDERS_DET_T(ID, ORDERS_T_ID, ORDER_DET_CODE, ORDER_DET_SUMA) VALUES(2,1,'APPLES',40);
INSERT INTO TEST.ORDERS_DET_T(ID, ORDERS_T_ID, ORDER_DET_CODE, ORDER_DET_SUMA) VALUES(3,1,'PEAT',60);
COMMIT; --SHOULD BE OK, 40+60=100
[code]....
P.S. Creating views based on ORDERS_T and ORDERS_DET_T are not an option, if the user would still be allowed to modify data in tables (as in test scenarios). This is because of current business situation, where the client has 2 teams (outsourcing for back-office solution and insourcing for web solution) that are accessing/modifying the data in the same tables.
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Aug 3, 2011
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;
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Jun 18, 2013
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.
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Feb 25, 2012
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]...
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Nov 11, 2011
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.
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Jun 17, 2010
Am 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.
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Jul 6, 2012
I have a I/R report with a checkbox is column 1 of each row using:
HTMLDB_ITEM.CHECKBOX
(1,R.RESEARCH_ID,
decode(:Pxx_SELECT_ALL_ROWS,'Y','CHECKED',
decode(instr(nvl(:Pxx_SELECTED_IDS,0),R.RESEARCH_ID),0,NULL,'CHECKED'))
)
AS select_flag
I want to use Javscript or a Dynamic Action to "count" how many selected rows there are, when a UPDATE button is pressed. Right now, the UPDATE button "submits" the page, then a page item computation runs the following code to get a count:
DECLARE
v_cnt number(9);
BEGIN
v_cnt := 0;
FOR i in 1..htmldb_application.g_f01.count
LOOP
v_cnt := v_cnt + 1;
END LOOP;
return v_cnt;
This works... but I dont want to submit (and rerun the report) just to get this count.
I have copied this loop into a Dynamic Action using the Click action of the UPDATE button, but it doesnt seem to recognize htmldb_application.g_f01.count .. so my value returns as 0.
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Sep 10, 2013
I want to understand the restrictions that apply to VPD functions when used for column masking, compared with their use for Row-Level Security. According to the Oracle Database Security Guide (11g Release 1) Column-masking conditions generated by the policy function must be simple Boolean expressions, unlike regular Oracle Virtual Private Database predicates.
I have long understood the above as implying that column-masking conditions should not contain sub-queries (i.e. inner selects). However, we tested using a condition with a select inside another select (2-level nesting) and yet it worked. We were on 11g Release 2, by the way. So, I wonder about using sub-queries in column-masking conditions? Or, alternatively, what Oracle means with "regular VPD predicates" and "simple Boolean expressions" (of course, in the context of VPD)?
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Sep 26, 2013
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.
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Dec 14, 2010
I have a report with 2 groups Gheader and Glines.The report looks at PO headers and lines. I want to create a data link from the the 2 queries based on the line id in po_lines_all.However I only want to select this in the lines query so I do not get repeating records at the header query.
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Jul 2, 2011
how to display check box selected records in one column of form when push button is pressed.
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Mar 18, 2011
I have following table.
CREATE TABLE ORAFAQ
(
DPT NUMBER,
EMP NUMBER,
SAL NUMBER
)
[Code]....
DPTEMPSAL
1110
12100
131000
241500
25100
26500
27100
but i need data like
Dept
1
1 2 3 --3 columns show each employee
10 100 1000 --3 columns show salary below each employee
2
4 5 6 7
1500 100 500 100
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Feb 24, 2013
How is naming Integrity Constants useful? See example below:-
create table incrr
(incrid number(4) constraint incrid_pk primary key,
incrdate date not null,
incramt number(8,2) not null
);
In the above if I don't use incrid_pk it also works.Then what is the use of incrid_pk ?
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Jul 14, 2012
I have two tables as follows:
TABLE_1
ID ENTRY_DATE VALUE
------- --------------- ----------
1 1-JUN-12 21
1 2-JUN-12 51
1 3-JUN-12 232
1 4-JUN-12 221
1 5-JUN-12 424
.
.
.
.
1 26-JUN-12 52
1 27-JUN-12 0
1 28-JUN-12 247
1 29-JUN-12 528
1 30-JUN-12 489
2 1-JUN-12
2 2-JUN-12
2 3-JUN-12
2 4-JUN-12
2 5-JUN-12
.
.
.
.
2 26-JUN-12
2 27-JUN-12
2 28-JUN-12
2 29-JUN-12
2 30-JUN-12
TABLE_2
ID DAY_1 DAY_2 DAY_3 DAY_4 DATE_5 .......... DAY_26 DAY_27 DAY_28 DAY_29 DAY_30
----- ---------- --------- --------- ---------- ---------- --------- --------- -------- -------- --------
1 21 51 232 221 424 52 0 247 528 489
2
There are millions of DISTINCT ID values in TABLE_1 and corresponding to each ID there are some values for all the days of a month. I need to insert these values in TABLE_2 in the above format.
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Sep 25, 2012
How to convert station & date wise multiple rows to date wise column. I have a table TEST like this,
STN_Name Date State
DELHI1-Sep-201G
DELHI2-Sep-201B
DELHI3-Sep-201G
DELHI4-Sep-201G
DELHI5-Sep-201G
DELHI6-Sep-201M
DELHI7-Sep-201G
DELHI8-Sep-201G
DELHI9-Sep-201G
DELHI ......... ..
DELHI 30 Sep 2012 G
KOLKATA1-Sep-201G
KOLKATA2-Sep-201B
KOLKATA3-Sep-201B
KOLKATA4-Sep-201B
KOLKATA5-Sep-201G
KOLKATA6-Sep-201M
KOLKATA7-Sep-201G
KOLKATA8-Sep-201G
KOLKATA9-Sep-201B
I want output like this
STN_Name1-Sep-20122-Sep-20123-Sep-20124-Sep-20125-Sep-2012............Sep 2012
DELHI G B G G G M
KOLKATA G B B B G M
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Aug 3, 2013
Calculating the difference between the two rows of same columns? Example of my Scenario is as follows
I have a table as shown below, there are checks thats has been issued per week (to tell how its been issued per week ,if you see the week number ,there is a change in week no for period of 7 days i.e. what i have to show on my results tables based on week no and probably we may need to take into account for check no too.)
wekno ! checkno ! end date
------ ! ------ ! ------
1 ! 1 ! 1/7/2012
1 ! 2 ! 1/8/2012
1 ! 3 !1/9/2012
2 ! 1 ! 1/14/2012
2 ! 2 ! 1/15/2012
3 ! 1 ! 1/21/2012
result table and date range i picked up was 1/1/2012-1/31/2012
wekno ! checkno ! end date ! previous period ! Daysin period
------ ! ------ ! ------ ! ------------- ! ------------
1 ! 1 ! 1/7/2012 ! null (as previous period is 2011 and so prvs year i dont count) ! 7 this because we see change in wkno per 7 days
1 ! 2 ! 1/8/2012 !null becoz this one falls same week and therefore previous peroid would be the same as above ! 7 above reason
1 ! 3 ! 1/9/2012 ! null becoz this one falls same week and therefore previous peroid would be the same as above ! 7 above reason
2 ! 1 ! 1/14/2012 ! 1/7/2012 becoz this a second week as you see the change in wekno and therefore its previosu period is 1/7/2012 ! 7 above reason
2 ! 2 ! 1/15/2012 ! 1/7/2012 becoz this check falls on the same second week so previosu would be 1/7/2012 ! 7 above reason
3 ! 1 ! 1/21/2012 ! 1/14/2012 as a new week no starts this gonn be 1/4/2012 ! 7 above reason
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Mar 18, 2013
writing the query, Output is shown below. facing problem in when converting columns into rows.
CREATE TABLE TESTTAB (IDNUM VARCHAR2(3),PLAN1 VARCHAR2(5),AMT1 NUMBER,PLAN2 VARCHAR2(5),AMT2 NUMBER,PLAN3 VARCHAR2(5),AMT3 NUMBER,PLAN4 VARCHAR2(5),AMT4 NUMBER,PLAN5 VARCHAR2(5),AMT5 NUMBER)
INSERT INTO TESTTAB VALUES('100','A01',9,'','','','','D04',300,'E05',900)
INSERT INTO TESTTAB VALUES('101','','','B02',56,'C03',24,'','','','')
INSERT INTO TESTTAB VALUES('102','A01',33,'','','C03',545,'','','E05',23)
[Code]...
My OUTPUT SHOULD BE LLIKE
IDNUM PLAN AMT
100 A01 9
100 D04 300
100 E05 900
101 B02 56
101 C03 24
102 A01 33
102 C03 545
102 E05 23
.
.
104 C03 44
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Mar 22, 2012
can we show the following rows into column upto 1000 using sql query?
A
1
2
3
4
[code]...
Result should like this 1,2,3,4,5,6,7,8,...... 1000 including comma(,)
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May 31, 2011
I have a table with columns emp_i, LOC_C and SUBSID_C. I want to find all emp_i's with LOC_C OR SUBSID_C as always NULL. Please note that the value should be NULL, always, for all dates.
--------------------------------------------
EX:
emp_i----LOC_C---SUBSID_C--Eff_Date
100------20------30--------01/01/2011
101------NULL----10--------05/01/2011
102------NULL----NULL------02/01/2011
101------20------NULL------02/01/2011
102------NULL----NULL------05/01/2011
103------NULL----20--------01/01/2011
103------NULL----NULL------02/01/2011
--------------------------------------------
The query ---
should return 102 as LOC_C OR SUBSID_C is ALWAYS NULL.
should return 103 as LOC_C is ALWAYS NULL.
should not return 101, as LOC_C is not ALWAYS NULL.
In other words, the query should give list of emp_i who never ever had a non-null value for LOC_C OR SUBSID_C. The purpose is to find the emp_i for which the columns LOC_C and SUBSID_C are never used.
I tried the query:
---------------------------------------------------
SELECT DISTINCT ORG_EMP_I FROM tab1
WHERE ORG_GRP_I = 58
AND ORG_EMP_I NOT IN (
SELECT DISTINCT org_emp_i
FROM tab1 ap
WHERE ap.ORG_GRP_I = 58
AND trim(ap.LOC_C) IS NOT NULL OR ap.ORG_SBSID_C IS NOT NULL )
---------------------------------------------------
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May 10, 2012
SELECT a.objname, c.property1, c.value1
FROM datatable a, datatabledet c
WHERE a.OBID=c.DATAOBID
and a.CLASSNAME='Class1';
OBJNAME PROPERTY1 VALUE1
280-419-1994psCls1Attr3Attr1Value3
280-419-1994psCls1Attr4Attr1Value4
280-419-1994psCls1Attr5Attr1Value5
[code]....
After query output we put through front end code to make it in the following way i.e. convert rows into columns but with respective data value:
psCls1Attr3 psCls1Attr4 psCls1Attr5 psCls1Attr1 psCls1Attr2 psCls1Attr7
280-419-1994 Attr1Value3 Attr1Value4 Attr1Value5 Attr1Value1 Attr1Value2
280-419-1995 Attr1Value11Attr1Value21Attr1Value71
how to output in the above format using SQL.
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May 18, 2010
converting Rows to Column for a specific group.
Following is the query
SELECT Lpad(papf.employee_number, 6, '0') "File#",
papf.full_name,
Decode(ppee.processing_type, 'R', Decode(ppee.element_name,
'Regular Wages USD', peev.screen_entry_value,
'Regular Salary USD', Round(peev.screen_entry_value / 26, 2),
0),
[Code]...
Which gives me out put as
Example 1
Employee Number Name Value Rate Type Type Assignment Id
-----------------------------------------------------------------
4 Employee 1 800 N 5 Yr Bonus 64
4 Employee 1 1063 N 6 Months Bouns 64
4 Employee 1 24.04 H Reg Hourly Sal 64
5 Employee 2 6923.08 S Reg Sal 65
6 Employee 3 5961.54 S Reg Sal 66
6 Employee 3 15000 N 6 Months Bouns 66
I want to convert above out to look like following
Emp Num Name Value Rate Type Type Val 1 Rate Type 1 Type 1 Value 2 Rate Type 2 Type 2 Assignt Id
-------------------------------------------------------------------------------------------------------------------
4 Employee 1 24.04 H Reg Hourly Sal 800 N 5 Yr Bon 1063 N 6 Mon Bon 64
5 Employee 2 6923.08 S Reg Sal 65
6 Employee 3 5961.54 S Reg Sal 15000 N 6 MontBon 66
Example of Query Output 2.
Employee Number Name Value Rate Type Type Assignment Id
--------------------------------------------------------------------------------
4 Employee 1 800 N 5 Yr Bonus 64
4 Employee 1 1063 N 6 Months Bouns 64
4 Employee 1 1345 N Patent Bonus 64
4 Employee 1 24.04 H Reg Hourly Sal 64
5 Employee 2 6923.08 S Reg Sal 65
6 Employee 3 5961.54 S Reg Sal 66
6 Employee 3 15000 N 6 Months Bouns 66
Desired Output from Above Query. As you can see column have increased as one more row for same employee has increased
ENu Nm Val RTy Ty Val1 RTy1 Ty1 Val2 RTy2 Ty2 Val3 RTy3 Ty3 AsgId
-------------------------------------------------------------------------------------------------------------------
4 E1 24.04 H Reg Hour Sal 1063 N 6 Mon Bns 1345 N Pat Bon 800 N 5YB 64
5 E2 6923.08 S Reg Sal 65
6 E3 5961.54 S Reg Sal 15000 N 6 Mos Bns 66
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Jun 25, 2012
I have a table with below structure
Id - Desc -repeat_times
1a - andy - 3
2b - santa - 5
I want to write a sql query which outputs two columnns like below. the particular row to be repeated as per the repeat_times column.
1a-1 andy
1a-2 andy
1a-3 andy
2b-1 santa
2b-2 santa
2b-3 santa
2b-4 santa
2b-5 santa
I have tried but am failing..
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Aug 14, 2013
Currently I have a requirement where I need return data of different columns in rows.
For example: I have a table that contains monthly data for voice calls, sms count and mms count for each mobile. I will need to get the output as summary of voice calls, sms and mms counts in different rows. For this I am using an approach which I am not totally satisfied even though I am getting the required results (majorly because i am querying the table thrice for getting this data).
I would want to know about any alternate ways of implementation.
--Create table
Create table
UsageData
(Mobile varchar2(20),
CAL_MONTH Varchar2(20),
VOICE_CALL number(9),
SMS number(9),
MMS number(9)
);
--Data
insert into UsageData values ('9999','JAN',1,2,3);
insert into UsageData values ('9888','JAN',5,20,1);
insert into UsageData values ('9777','JAN',4,5,9);
insert into UsageData values ('9666','JAN',200,111,8);
insert into UsageData values ('9555','JAN',154,1534,3);
insert into UsageData values ('9444','JAN',0,2,212);
--Query
select 'VOICE_CALL' AS EVENT,sum(VOICE_CALL) AS UNITS from UsageData where cal_month ='JAN'
union all
select 'SMS',sum(SMS) from UsageData where cal_month ='JAN'
union all
select 'MMS',sum(MMS) from UsageData where cal_month ='JAN';
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Mar 28, 2011
I huge table with million of rows and no of column more than 300.. is it possible to keep this table in some memory where oracle can access it fast as compare to disk memory.
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Nov 20, 2011
how to convert rows data into column...
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