Using CASE and CAST in a INSERT statment
Can I have a CASE condition or a CAST condition within an INSERT statement?
For example:
Insert into table1 (
Value1,
Value2,
Value3,
Value4)
Select
Seq1.nextval,
Case when (color.grade in (6,5,7,8) or color.grade2 in (6,5,7,8,11,12)
Then 2
Else 1
End case,
‘GREAT’,
CAST(color.client as varchar2)
From color;
Must I specify a column name in the CASE statement? If so, how can I do it if it is based on values from 2 columns?
Satyaki_De wrote:
Yes.
A little modification in your query ->
Insert into table1(
Value1,
Value2,
Value3,
Value4
Select Seq1.nextval Value1,
Case
when color.grade in (6,5,7,8)
or color.grade2 in (6,5,7,8,11,12) Then
2
Else
1
End case Value2,
‘GREAT’ Value3,
CAST(color.client as varchar2) Value4
From color;Regards.
Satyaki De.I don't think that the "END CASE" is supported in SQL, it's the PL/SQL syntax of the CASE statement that requires an END CASE.
In addition if you cast to VARCHAR2 you need to specify the length of the VARCHAR2, e.g. VARCHAR2(100).
So the statement probably should look something like this (untested):
Insert into table1(
Value1,
Value2,
Value3,
Value4
Select Seq1.nextval Value1,
Case
when color.grade in (6,5,7,8)
or color.grade2 in (6,5,7,8,11,12)
Then
2
Else
1
End Value2,
'GREAT' Value3,
CAST(color.client as varchar2(100)) Value4
From color;Regards,
Randolf
Oracle related stuff blog:
http://oracle-randolf.blogspot.com/
SQLTools++ for Oracle (Open source Oracle GUI for Windows):
http://www.sqltools-plusplus.org:7676/
http://sourceforge.net/projects/sqlt-pp/
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Using Cursor and FOR LOOP to INSERT the data into table
Hi all,
I have SELECT statement that returns 3 rows:
PROCESSNAME
PROTDATE
IMM
2013-12-18
Metrology
2013-11-18
CT
2013-12-04
SELECT processName, MAX(NVL(protStartDate, protCreateDate)) AS protDate
FROM TABLE(SEM_MATCH("{
?ipc rdf:type s:Protocol .
?ipc s:protocolNumber ?protNum .
?ipc s:protocolCreateDate ?protCreateDate .
OPTIONAL {?ipc s:protocolSchedStartDate ?protStartDate }
?ipra rdf:type s:ProcessAggregate .
?ipra s:hasProtocol ?iprot .
?iprot s:protocolNumber ?protNum .
?ipra s:processAggregateProcess ?processName.
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Group by processName
Now I need to INSERT these values into the table along with the other values.
these other values come from different table.
INSERT INTO MODEL_CLASS_COUNTS (MODEL_NAME, CLASS_NAME, INS_COUNT, COUNT_DATETIME, PROCESS_NAME, PROT_DATE)
VALUES
("$MODEL",
"${i}",
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SYSTIMESTAMP, %%here need to insert PROCESSNAME, PROTDATE%%
t was giving me error:
PL/SQL: ORA-22905: cannot access rows from a non-nested table item
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The code is as follows:
declare
type c_type is REF CURSOR;
cur c_type;
v_process varchar2(200);
v_pdate varchar2(200);
begin
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FROM TABLE
(SEM_MATCH (
?ipc rdf:type s:Protocol .
?ipc s:protocolNumber ?protNum .
?ipc s:protocolCreateDate ?protCreateDate .
OPTIONAL {?ipc s:protocolSchedStartDate ?protStartDate }
?ipra rdf:type s:ProcessAggregate .
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?iprot s:protocolNumber ?protNum .
?ipra s:processAggregateProcess ?processName.
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SEM_ALIAS("s", "http://VISION/DataSource/SEMANTIC#")),NULL))
Group by processName';
loop
fetch cur into v_process, v_pdate;
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end loop;
close cur;
end;
exit;
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?cityID :population ?o .
SEM_Models('VIRT_MODEL_MONDIAL'),
SEM_Rulebases(null),
SEM_ALIASES(SEM_ALIAS('','http://www.semwebtech.org/mondial/10/meta#'),
SEM_ALIAS('prv','http://www.semwebtech.org/mondial/10/countries/CH/provinces/')
null))
group by city,o
order by city;
Or with execute immediate :
declare
v_country varchar2(200) :='http://www.semwebtech.org/mondial/10/countries/F/';
v_text varchar2(2000);
begin
v_text := 'insert into t_countries(ID,CITY ,POPULATION, DESCRIPTION, located, insdate )
SELECT 1 id, city, o , city||'' is a nice city'' description, max(nvl(locatedAt,''unknown'')) as located,
SYSTIMESTAMP
FROM TABLE(SEM_MATCH(
''{<'||v_country||'> :hasCity ?cityID .
?cityID :name ?city .
OPTIONAL{?cityID :locatedAt ?locatedAt .}
?cityID :population ?o .
SEM_Models(''VIRT_MODEL_MONDIAL''),
SEM_Rulebases(null),
SEM_ALIASES(SEM_ALIAS('''',''http://www.semwebtech.org/mondial/10/meta#'') ),
null))
group by city,o
order by city';
dbms_output.put_line(v_text);
delete from t_countries;
execute immediate v_text ;
commit;
end;
Marc -
How to use case and decode to extract the data
Hello PL/SQL Gurus,
I am using Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production version
I have a table in following format -
drop table TT2;
create table TT2(College, Class,gender,status,fees) as select
'IITB','MBA','M','P',255600 from dual union all select
'IITK','MTech','M','P',300000 from dual union all select
'IITD','MBA','F','P',450000 from dual union all select
'IITKH','MBA','F','P',350000 from dual union all select
'IITC','MTech','F','P',420000 from dual union all select
'IITB','MTech','M','P',185000 from dual union all select
'IITC','MTech','M','P',235000 from dual union all select
'IITD','MBA','F','F',175000 from dual union all select
'IITM','MBA','M','F',257000 from dual union all select
'IITKH','MTech','F','P',335000 from dual union all select
'IITD','MBA','F','P',540335 from dual union all select
'IITC','MBA','F','F',125089 from dual union all select
'IITD','MTech','M','P',290756 from dual union all select
'IITM','MBA','M','P',200000 from dual union all select
'IITKH','MBA','F','F',534990 from dual union all select
'IITD','MBA','F','P',221000 from dual ;some of the extraction conditions are as following -
CASE CONDITION
College in 'IITB' and status='P'- 'WestRegion Passed'
College in 'IITC' and status='P'- 'SouthRegion Passed'
College in 'IITD' and 'IITK' and status='P' and Gender='F' - 'NothRegion Female Passed'
College not in 'IITK' and status='F' - 'Ex Kanpur Failed'
Expected output -
Region Statnding Fees
WestRegion Passed 440460
SouthRegion Passed 655000
NothRegion Female Passed 1386335
Ex Kanpur Failed 1092079SQL Used
I am using the following query which only make sure of case but this is not how i want the output , if i try to use the case within decode then how to work on this -
SELECT (CASE WHEN College in ('IITB') and status='P' then sum(fees) else 0 end) WP,
(case when College in ('IITC') and status='P' then sum(fees) else 0 end) SP,
(case when College in ('IITD','IITK') and gender='F' and status='P' then sum(fees) else 0 end) NFP,
(case when College in ('IITK') and status='F' then sum(fees) else 0 end) ExKF
FROM
TT2
GROUP BY College, Class,gender,statususer555994 wrote:
Thank you so much jeneesh i am really thankful to you ...vov.
one more query in case if any of the selection don't have the output data , then values will be displayed like -One way..
with t as
--"Add all your descriptions
(select 'WestRegion Passed' region_standing from dual union all
select 'SouthRegion Passed' region_standing from dual union all
select 'NothRegion Female Passed' region_standing from dual union all
select 'Ex Kanpur Failed' region_standing from dual)
select region_standing,sum(fees) fees
from (
(SELECT CASE WHEN College in ('IITB') and status='P'
then 'WestRegion Passed'
when College in ('IITC') and status='P'
then 'SouthRegion Passed'
when College in ('IITD','IITK') and gender='F' and status='P'
then 'NothRegion Female Passed'
when College in ('IITK') and status='F'
then 'Ex Kanpur Failed'
else 'Others' end region_standing,
sum(fees) fees
FROM TT2
GROUP BY CASE WHEN College in ('IITB') and status='P'
then 'WestRegion Passed'
when College in ('IITC') and status='P'
then 'SouthRegion Passed'
when College in ('IITD','IITK') and gender='F' and status='P'
then 'NothRegion Female Passed'
when College in ('IITK') and status='F'
then 'Ex Kanpur Failed'
else 'Others' end
union all
select region_standing,0
from t
group by region_standing;
REGION_STANDING FEES
Others 2567835
NothRegion Female Passed 1211335
WestRegion Passed 440600
Ex Kanpur Failed 0
SouthRegion Passed 655000
{code}
Edited by: jeneesh on Nov 5, 2012 5:07 PM -
hello ,
i wanna use "case when" statement in the insert , i implement it like this :
currentyear:=1;
insert into test1 (ATTRIB1,ATTRIB2) values ((case when currentyear=1 then 'ok' else 'notOK' end),'val2' );
but it didn't work, i got this error :
ORA-14551: cannot perform a DML operation inside a query
Regards
Elyes
Edited by: user10393090 on 5 janv. 2009 03:32Better approach is ->
insert into test1 (ATTRIB1,ATTRIB2)
select case
when ¤tyear=1 then
'ok'
else
'notOK'
end AS attrib1,
'val2' AS attrib2
from dual;N.B.: Not Tested...
Regards.
Satyaki De. -
Hello my friends
I have one table "encompasses": continent,country,percentage
now the update should change the continent field, all "Europe" to "Asia" and all "Asia" to "America" and "America" to "Europe" by using case and just one update statement.
I wrote so and i got this error
Error starting at line 2 in command:
UPDATE encompasses
SET continent=
CASE WHEN continent='Europe' THEN 'Asia'
WHEN continent='Asia' THEN 'America'
WHEN continent='America' THEN 'Europe'
END
Error report:
SQL Error: ORA-01407: cannot update ("intern"."ENCOMPASSES"."CONTINENT") to NULL
01407. 00000 - "cannot update (%s) to NULL"
*Cause:
*Action:please give me hints,thank u.
-- File created - Monday-May-13-2013
CREATE TABLE "intern"."ENCOMPASSES" ("COUNTRY" CHAR(2), "CONTINENT" VARCHAR2(20), "PERCENTAGE" NUMBER)
COMMENT ON COLUMN "intern"."ENCOMPASSES"."COUNTRY" IS 'the country code'
COMMENT ON COLUMN "intern"."ENCOMPASSES"."CONTINENT" IS 'the continent name'
COMMENT ON COLUMN "intern"."ENCOMPASSES"."PERCENTAGE" IS 'percentage, how much of the area of a country belongs to the
continent'
COMMENT ON TABLE "intern"."ENCOMPASSES" IS 'information to which continents a country belongs'
REM INSERTING into intern.ENCOMPASSES
SET DEFINE OFF;
Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('cx','Asia',100);
Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('eg','Asia',10);
Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('ge','Asia',100);
Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('id','Asia',100);
Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('ad','Europe',100);
Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('al','Europe',100);
Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('at','Europe',100);
Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('ba','Europe',100);
Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('pa','America',100);
Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('pe','America',100);
Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('pm','America',100);
Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('pr','America',100);
Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('py','America',100);
Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('sr','America',100);
Insert into intern.ENCOMPASSES (COUNTRY,CONTINENT,PERCENTAGE) values ('sv','America',100);thank you, im using oracle 11g and ubuntu12
best,david
Edited by: 1003209 on 13-May-2013 10:121003209 wrote:
Hello my friends
I have one table "encompasses": continent,country,percentage
now the update should change the continent field, all "Europe" to "Asia" and all "Asia" to "America" and "America" to "Europe" by using case and just one update statement.
I wrote so and i got this error
Error starting at line 2 in command:
UPDATE encompasses
SET continent=
CASE WHEN continent='Europe' THEN 'Asia'
WHEN continent='Asia' THEN 'America'
WHEN continent='America' THEN 'Europe'
END
Error report:
SQL Error: ORA-01407: cannot update ("intern"."ENCOMPASSES"."CONTINENT") to NULL
01407. 00000 - "cannot update (%s) to NULL"
*Cause:
*Action:This seems the column Continent has not null contraint on it, hence when there is a continent other than the three you mentioned above the case statement is evaluating it to null and hence failing e.g. if there is a record with continent = 'Antartica' it will try to update that as null.
so either add this:
WHERE continent in ('Europe' ,'Asia','America')this will update only for this continents and ignore other values.
If you want to update other continents as well then have a else condition in CASE statement to assign defualt value.
Regards,
Santosh -
Hi,
I am running below statement.
create table test_abc
(cnt number,
outcome varchar2(20));
insert into test_abc values(1,'EXISTINGDOMFUELCUST');
insert into test_abc values(1,'Answer Phone');
insert into test_abc values(1,'Answer Phone');
insert into test_abc values(1,'Answer Phone');
insert into test_abc values(1,'Answer Phone');
insert into test_abc values(1,'Answer Phone');
commit;
Now I used case and decode
select count(*),ot from (
select (case when outcome ='EXISTINGDOMFUELCUST' then 'Existing Domestic Fuel Customer'
when outcome='Answer Phone' then 'Answer Phone'
when outcome='Answer Phone' then 'Answer Machine' end) ot
from test_abc)
group by ot;
select count(*),decode(outcome,'EXISTINGDOMFUELCUST','Existing Domestic Fuel Customer','Answer Phone',
'Answer Phone','Answer Phone','Answer Machine')
from test_abc
group by decode(outcome,'EXISTINGDOMFUELCUST','Existing Domestic Fuel Customer','Answer Phone',
'Answer Phone','Answer Phone','Answer Machine')
and getting same output
cnt ot
5 Answer Phone
1 Existing Domestic Fuel Customer
but I want output should be
cnt ot
5 Answer Phone
5 Answer Machine
1 Existing Domestic Fuel Customer
please suggestIndra Budiantho wrote:
/* Formatted on 8/28/2012 3:10:28 PM (QP5 v5.139.911.3011) */
SELECT CASE
WHEN outcome = 'EXISTINGDOMFUELCUST'
THEN
'Existing Domestic Fuel Customer'
WHEN outcome = 'Answer Phone'
THEN
'Answer Phone'
END
outcome,
COUNT (*)
FROM test_abc
GROUP BY outcome
union
SELECT CASE
WHEN outcome = 'EXISTINGDOMFUELCUST'
THEN
'Existing Domestic Fuel Customer'
WHEN outcome = 'Answer Phone'
THEN
'Answer Machine'
END
outcome,
COUNT (*)
FROM test_abc
where outcome = 'Answer Phone'
GROUP BY outcomeo/p
Answer Machine 5
Answer Phone 5
Existing Domestic Fuel Customer 1This can be simplified..
Also, UNION will unnecessarily do a distinct operation.
SELECT CASE
WHEN outcome = 'EXISTINGDOMFUELCUST'
THEN
'Existing Domestic Fuel Customer'
WHEN outcome = 'Answer Phone'
THEN
'Answer Phone'
END
outcome,
COUNT (*)
FROM test_abc
GROUP BY outcome
union all
SELECT 'Answer Machine'
outcome,
COUNT (*)
FROM test_abc
where outcome = 'Answer Phone'
GROUP BY outcome -
Hello all
I am currently developing an event management assignment for my degree.
A subset of problem statment
Attendee is a person, who would register with the application
in order to view the posted events.
For this part of the problem statment i have identified a usecase
"register attendee".
I will type the use case here. Since i am a novice, I would really like
design gurus to throw some light on the use case and suggest me changes
I will really appreciate it.
Use case : register attendee
Pre-condition: Attendee decides to register.
Main Success Scenario:
Actor System
1. Attendee requests to register.
2. Provides registration form.
3. Attendee fills the form and
submits.
4. System checks for valid
authentication.
(//for eg. unique username)
5. System validates the information
(//for eg.compulsory fields
present or not)
6. System notifies through mail.
7. Displays registration was
successful.
Alternative Flow :
4 a) Invalid authentication : Displays appropriate message.
5 a) Invalid information : Displays appropriate message.
6 a) Mail notification failure : Logs the failure message and email.
Please guide me friends. I am a bit confused.
Thanks in advance.
JennyUse case are pretty good for both of these. You know
your system needs to allow an ATTENDEE to register
with the SYSTEM using a REGISTRATION FORM. These sound
like things that either you need to model (what
attributes do the form and attendee have) or a thing
that you need to build the "system".
The steps in the use case tell you how the system must
behave. It needs to "getRegistrationForm" and give it
the attendee. The Attendee needs to
"completeRegistrationForm" and
"submitRegistrationForm". So, with the authentication
and validation rounding out the process you have a
good idea of what kind of methods you need as a base
in order to deal with the real world concepts you have
identified.I am through with what behaviour my system will need to provide in
order to realize the use case. But I will have to assign the behaviour
appropriately to classes of objects. I would like to go to the design model once i have a good understanding of the domain model. This is where the problem starts, should i identify, AuthenticationVerifier,InformationVerfier as different concepts and give later say AuthenticationVerifier the responsibility of verifying unique authentication and InformationVerfier the responsibility of verifying information received with the form or should I only take one concept of say Administrator that would perform the above two stated behaviours. I understand that it is always good to overspecify concepts rather than under specify but at some point of time i will have to make that decision.
If its a libray system, it is easy to identify certain priliminary concepts say book, patron, etc. as they occupy some physical space. But here nothing is clear. There isn't any entity in my use case, that occupies a physical space that i can easily identify as a real world concept.
My question is, how in this case, do someone define the notion of concept when there is nothing in the main success scenario that occupies space. My use case, only specifies what will be done with the
attendee information, not who will do it. So as a use case developer, am i responsible to map these processes with some physical entities that i have derived for eg. AuthenticationVerfier.
ps. You will need to add the Attendee as an Actor. She
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Kuba -
Code generation from use cases
I have to build a system that inputs use cases and outputs code. I am as yet unsure how to do this. I assume the easiest way would be to go via class diagrams because code generation seems not a huge leap from there, but how would you suggest I get from the text use cases to a class diagram? Any help and pointers would be very very welcome.
Cheers,
NicholasIf you invent this, they will have to create a new Nobel prize for computing. And we as developers will all be out of business. Best of luck.
- Saish -
Hi !
I need to return all the employess, and indicate with "YES" or "NO" wherther they receive a commission.
I am trying to get this by using CASE and DECODE but result is comming different.
USING DECODE:
SELECT ename,
sal,
DECODE(comm,NULL,'NO',
'YES') COMM
FROM emp;
USING CASE:
SELECT ename,
sal,
CASE comm
WHEN NULL THEN 'NO'
ELSE 'YES'
END
FROM emp;
DECODE is returning actual data(comm is NO where comm is null and comm is YES where comm is not null). Where as CASE is retunring YES for all employees commission even comm is null..
I am not able to understand where I was wrong.
Can any one help me out?
Thanks
RajeshHi Rajesh,
I tried to solve your query this way, check if it serves the purpose
/***Using Decode***/
SELECT EMPLOYEE_ID, DECODE(NVL(COMMISSION_PCT, 0), 0, 'NO', 'YES')
FROM EMPLOYEES
/****Using Case***/
SELECT EMPLOYEE_ID, CASE NVL(COMMISSION_PCT, 0)
WHEN 0 THEN 'NO'
ELSE 'YES'
END CASE
FROM EMPLOYEES
/ -
Get runtime class and cast object to it?
Hi,
public interface Msg
Msg msg=msgLib.get(msgType);
Msg msg2=msg.clone(); //problem! cannot find clone in x.y.Msg!
...Shouldn't msg be resolved to the implementing class (MsgReply for example) and use the "clone()" method, that i have declared in that class -which overrides the one of Object class?
If no, is there a way to find the runtime class -probably use "getClass"- and cast to it? How?
ThanksThere are many implementing classes; i want to get the runtime class. Something like:
(msg.getClass())msg.clone();
Message was edited by:
uig
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