SQL & PL/SQL :: Create A Function Which Can Be Used In A Select Query?
Jun 11, 2008
I have a table structure like :-
Create table test(A varchar2(50),B NUMBER);
The data in that table is like that:-
A B
----------------------
2*3
2*4*5
4*5
column B contain no data.
I want to create a function which can be used in a select query,and the output should come like that :-
A B
----------------------
2*3 6
2*4*5 40
4*5 20
Means column B contains the resultant value of column A.And the above output should come through a select statement.You can use any function inside the select statement.
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Dec 5, 2012
I have a dynamic query stored in a function that returns a customized SQL statement depending on the environment it is running in. I would like to create a Materialized View that uses this dynamic query.
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Oct 21, 2012
I have 2 tables, ASSIGNMENT and RESEARCH_PAPER. For each research paper, I need to find out :
1. The number of assignments created from it (after a given constant assign date)
2. The number of assignments created from it that have been approved.
3. The number of unique users who have either created or approved an assignment from it
Test data :
create table research_paper (id int, name varchar2(100));
create table assignment (id int, r_paper_id int, assigner_id int, assignee_id int,
approver_id int, assign_date timestamp, approved_yn varchar2(10));
insert into research_paper values (1, 'A');
insert into research_paper values (2, 'B');
[code]....
Assignment :
id r_paper_id assigner_id assignee_id approver_id assign_date approved_yn
-----------------------------------------------------------------------------------------------------------
11 100 200 100 23-10-12 12:00:00.000000000 AMY
22 200 100 200 22-10-12 12:00:00.000000000 AMN
32 100 200 101 24-10-12 12:00:00.000000000 AMY
[code]....
Research_paper:
id name
----------
1A
2B
Expected result :
r_paper_id created approved unique_users
-----------------------------------------------
1 3 2 4
2 3 2 3
I wrote the following query for that :
SELECT rp.id r_paper_id,
COUNT(*) created,
COUNT(
CASE
WHEN a.approved_yn = 'Y'
[code]....
But it fails, saying that 'single-row subquery returns more than one row' when I introduce the 'unique_users' clause. The remaining fields of the output are correct.
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Sep 13, 2004
Can we create a table from a Select query ?
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Dec 21, 2011
I'm trying to create a sort of nested-query within my select of attributes . i.e.
select A.a,
B.b,
(select count(C.*)
from C
where C. = B.d
group by C.y)
from A a,
B b
where A.d = B.d
and ...
Over-simplifying my query:
select B.desc "Location",
F.desc "Source",
A.amt "Amount",
sum(G.G_CNT) "No. Units",
c.desc "Status"
[code]....
I need to incorporate a count of the number of units from TableG that have a certain status. I tried the following but when I tried to run it, I get an error saying that it's not a Group By expression -the red part is highlighted in TOAD.
select B.desc "Location",
F.desc "Source",
A.amt "Amount",
sum(G.G_CNT) "No. Units",
(select count(*)
from TableG G2
where G2.D_ID = D.ID
and G2.status = 10
group by G2.D_ID)"Count",
c.desc "Status"
[code]....
Any thoughts how I can incorporate a query in my select of attributes?how to Group By something.
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Nov 1, 2013
how do I create a procedure for a SELECT query like the following?
When I create a procedure; I get an error "Error(80,1): PLS-00428: an INTO clause is expected in this SELECT statement" PROCEDURE MyProcISBEGINselect 'Dakota' as ALIAS ,A.StartDate ,B.EndDatefrom Customer A ,Clients bwhere a.cType = b.cTypeand b.Active =0ORDER BY StartDate, EndDateEND MyProc;
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Sep 9, 2013
I have a table with columns job_id, jan, feb, mar ... , and year
I need to create a select query that will get the data from 18 months ago based on sysdate.
So something like:
Select to_char(add_months(sysdate, -18),'MON') from table1 where job_id = 56947 and year = to_char(add_months(sysdate, -18),'YYYY');
However I need the result of to_char(add_months(sysdate, -18),'MON') to actually act as a column name, not a string result.
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Jun 11, 2012
i am using Apex 3.2 ver.
i want to use below code in LOV select list
BEGIN
IF UPPER(:P23_SERVICE_TYPE) like 'GUIDE%' THEN
SELECT NAME D, CODE R FROM SPECIAL_SERV_MAS
WHERE NVL(ACTIVE_FLG,'N') = 'Y'
AND NVL(GUIDE_FLAG,'N') = 'Y'
and CITY_CODE LIKE NVL (:P23_CITY_CODE, '%')
[code]....
When i put this code in my LOV Select list Section then display me Error
Not Found The requested URL /pls/apex/f was not found on this server.
Oracle-Application-Server-10g/10.1.2.0.2 Oracle-HTTP-Server Server at tidevserv1 Port 7777
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Jul 4, 2010
i want to select dynamic column names in my select statement in my function.
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Jun 15, 2012
Is anyway to create function based index for group function columns.
For example
select max(timestamp),min(age),averge(sal).... ... .. from tab;
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Aug 7, 2009
I am looking to simplify the below query,
DELETE FROM A WHERE A1 IN (SELECT ID FROM B WHERE BID=0) OR A2 IN (SELECT ID FROM B WHERE BID=0)
Since both the inner queries are same,I want to extract out to a local variable and then use it.
Say,
Array var = SELECT ID FROM B WHERE BID=0;
And then ,
DELETE FROM A WHERE A1 IN (var) OR A2 IN (var)
How to do this using SQLPLUS?
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Sep 14, 2013
How to use a function with DML operations in it in a select statement.
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Mar 10, 2012
Is there a technique to getting a Top-N query to work as a sub-select in a larger query -or- is there another way to generate Top-N like results that works as a sub-select?
Background:
We have a large query that is being used to build an export from a legacy HR system to a new one. Amount the data needed in the export is the employees primary phone number.
The legacy HR system allows multiple phone numbers to be stored in a simple table structure:
SELECT emp_id, phone_type, phone_number
FROM employee_phones
emp_idphone_typephone_number
------- --------------- -------------------
46021CELL2222222222
46021HOME1111111111
46021WORK3333333333
The new HR system does allow for multiple phone numbers, however they need a primary phone number identified and stored with the employee master information. (Subsequent phone numbers get stored in alternate table.)
From a business perspective, we have decided that if they have a HOME phone in the legacy system that should be the primary in the new system, if no HOME phone, then WORK, if no WORK then CELL.
That can be represented as:
SELECT *
FROM employee_people_phones
WHERE emp_id = '46021'
ORDER BY decode(phone_type, 'HOME', 'a', 'WORK', 'b', 'CELL', 'c', 'z')
emp_idphone_typephone_number
------- --------------- -------------------
46021HOME1111111111
46021WORK2222222222
46021CELL3333333333
Or similarly with Top N concept:
SELECT *
FROM (SELECT *
FROM employee_people_phones
WHERE emp_id = '46021'
ORDER BY decode(phone_type, 'HOME', 'a', 'WORK', 'b', 'CELL', 'c', 'z')) results
WHERE ROWNUM = 1
emp_idphone_typephone_number
------- --------------- -------------------
46021HOME1111111111
Or really what I want in my export:
SELECT phone_number
FROM (SELECT phone_number
FROM employee_people_phones
WHERE emp_id = '46021'
ORDER BY decode(phone_type, 'HOME', 'a', 'WORK', 'b', 'CELL', 'c', 'z')) results
WHERE ROWNUM = 1
phone_number
-------------------
1111111111
However, when the Top-N query is added as a sub-select in a larger query using the employee id from the larger query (WHERE emp_id = export.emp_id), it fails saying that �export.emp_id� is not a valid id.
(SELECT phone_number
FROM (SELECT phone_number
FROM employee_people_phones
WHERE emp_id = export.emp_id
ORDER BY decode(phone_type, 'HOME', 'a', 'WORK', 'b', 'CELL', 'c', 'z')) results
WHERE ROWNUM = 1)
1.Any way around this? Is it possible to put a Top-N (with a WHERE clause using data from the main query) in a sub-select?
2.Any alternatives (other than Top-N) to delivering a ROWNUM=1 result with a �custom� ORDER BY statement?
Other Notes: Yes, we know we could do two queries in the data conversion first deliver the bulk data to the target table, and then update with the phone numbers. However, for multiple reasons, that is less than desirable.
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May 11, 2010
I am trying to use decode function in sql and inside decode function can I use select statement ?
here is my sql
select we.wf_entity_id, decode(object_type_id,
1, select audit_number from ea_audit_general where sys_audit_id=object_id
2,'test',
object_type_id
) from wf_entity we
where
[code]....
see this
decode(object_type_id,
1, select audit_number from ea_audit_general where sys_audit_id=object_id
2,'test',
object_type_id
)
will this work? Its not working for me?
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Sep 12, 2013
I'm writing a VPD function to be used for column masking. The predicate (WHERE-clause) it generates may take many different forms. In particular, it may contain inner-selects; for example,
"exists(select '*' from B where B.VAL = '123' and A.KEY = B.KEY)"
where A is the table that is associated to the VPD function, and B is some other table.
if this is OK for column masking? If not, my VPD function may sometimes work and sometimes fail, in unexpected ways.
The Oracle Database Security Guide (11g Release 1) says
Column-masking conditions generated by the policy function must be simple Boolean expressions, unlike regular Oracle Virtual Private Database predicates".
This seems to indicate that there are cases where a VPD function works for row-level security, but not for column masking.
an example of a 'regular Oracle VPD predicate' that doesn't work for column-masking?
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Jan 25, 2013
im trying to select columns from different tables dynamically in a function . The parameter for the function will be table name and column id's, In this number of columns may vary . Is it possible to have dynamic %rowtype to store the cursor value in it.
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Jul 20, 2011
I am trying to run a dynamic select statement form a function and return the result into a variable, everything goes fine but the return is always null!
CREATE TABLE AFESD.MAJOR_ACCOUNT
(
NUMBER0 NUMBER(2) NOT NULL,
SHORT_NAME CHAR(35 BYTE) NOT NULL,
FULL_NAME CHAR(50 BYTE)
)
--Actually any table can do
CREATE OR REPLACE FUNCTION F_GEN_SELECT_INT
(S_APP_USER IN VARCHAR2, I_MODULE_ID IN NUMBER, S_TABLE IN VARCHAR2, S_COLUMNS IN VARCHAR2)
RETURN NUMBER
AS
I_RETURN NUMBER;
S_SQL VARCHAR2(300);
--S_DB_ERROR VARCHAR2(100);
[code]....
B.S. I didnt delete the commented lines to have your review comments.
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Feb 17, 2010
why function does no raise error no_data found when call in select statement.
1) create one function.
CREATE OR REPLACE function fn_sal(v_id NUMBER) RETURN NUMBER
IS
v_sal NUMBER;
BEGIN
SELECT sal INTO v_sal FROM emp where empno=0;
RETURN v_sal;
END;
2) call it in select statement.
SELECT fn_sal(e.sal),e.* FROM emp e
select satement cause no error , it displayes all the records but null for the function cloumn.
why it not gives no_data_found error.
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May 23, 2012
I need to write a function which will take table name as input and should return all the columns separated by coma (,).
For example I have a table product as
PROD_ID PROD_NAME FAMILY_ID
------------------------------------
100006Acetaminophen100005
100013Simvastatin100007
100014Ezetimibe100008
100015Simvastatin+Ezetimibe Oral Family100009
100003Abacavir100003
100007Amlodipine100006
100001Cetirizine HCl Oral Solution100001
My function should return the output as
100006,Acetaminophen,100005
100013,Simvastatin,100007
100014,Ezetimibe,100008
100015,Simvastatin+Ezetimibe Oral Family,100009
100003,Abacavir,100003
100007,Amlodipine,100006
100001,Cetirizine HCl Oral Solution,100001
Is there any inbuilt function available?
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Jul 12, 2012
I have 8 columns. Some of them might be null.I want to display all 8 columns in my result. Not null columns will be first and null at the end.
Here is a sample data :
Employee table :
Employee_id Emp_fname emp_lname emp_mname dept salary emp_height emp_weight
1 aaa ddd d1 100 6 180
2 bbb ccc 120 169
3 dfe d2 5.9 223
The expected result is :
result1 result2 result3 result4 result5 result6 result7 result8
1 aaa ddd d1 100 6 180
2 bbb ccc 120 169
3 dfe d2 5.9 223
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Jul 3, 2012
How to call a function with a row type return in an Oracle select statement.
For e.g. :
If I had this function with a rowtype return:
------------------------------
create function abc
return xyz%rowtype
is
rec xyz%rowtype;
begin
select * into rec from xyz where col1 = n;
return rec;
end;
--------------------------------
How could I use this in a select clause, as there is a multi column return by the function ?
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Aug 16, 2011
i want to select columns of 3 tables in such a way that period column should be in the group by function.
create view allocated_budgets_detail as
select ba.ba_fin_year, ba.ba_start_date, ba.ba_end_date, ba.ba_rev_no,
bh.bh_budget_code,
bd.bd_period,
bb.bb_entered_amount
from budget_header bh, budget_allocation ba, budget_distribution bd, budget_balance bb
where bh.bh_budget_id = ba.ba_budget_id
and ba.ba_line_id = bd.bd_budget_line_id
and ba.ba_line_id = bb.bb_budget_line_id
group by bd.bd_period
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Apr 29, 2010
i want to create a function that build a return xml (XmlType):
create or replace
function plainLanguageSummary(nip varchar2,id number,code_language varchar2) return XmlType
as
[Code].....
but in the compilation i got the following error :
Error(10,62): PLS-00103: Encountered the symbol "SELECT" when expecting one of the following: ( - + case mod new not null others <identificateur> <identificateur entre guillemets> <variable bind> avg count current exists max min prior sql stddev sum variance execute forall merge time timestamp interval date <un littéral de chaîne avec spécification de jeu de caractères> <un nombre> <une chaîne SQL entre apostrophes> pipe <constante de chaîne éventuellement entre guillemets avec indication du jeu de
he seems to not like the first "select" he encounter!.
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Feb 13, 2013
Can we create a Pipelined function in A Package ? I know we can create it standalone function.
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Apr 15, 2010
i have a project that needs to have a identity number in the table.this is the table:
create global temporary table BOOK_INFO
( row_id number(5),
BOOK_TITLE char(20),
BOOK_AUTHOR char(15)
) on commit preserve rows;
i dont know how can i generate row_id, in sybase i can only set the datatype of row_id in IDENTITY and it will automatically generates number and as the transaction ended the row_id will automatically back to 1.
in oracle i tried to create sequence but it didnt back to 1 when the transaction/procedure ended.. Like for example if the procedure ended and the last row_id inserted in the table is 300 the next run of the procedure will start in 301. but i need to start in 1 in every run of the procedure.
Also, i tried to set the variable v_row_id to 0 and it increment by 1 as it insert in the table, but the problem is there are times that in 1 book_title there is more than 1 author. so the v_row_id of the book_title with more than 1 author is all the same.Here is my query:
insert into BOOK_INFO
(select v_row_id, BOOK_TITLE, BOOK_AUTHOR from LIBRARY);
The result is:
ROW_ID BOOK_TITLE BOOK_AUTHOR
1 BOOK_1 AUTHOR_1
1 BOOK_1 AUTHOR_2
1 BOOK_1 AUTHOR_3
1 BOOK_1 AUTHOR_4
2 BOOK_2 AUTHOR_5
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Sep 8, 2011
I am using a form which create function to calculate value using form_ddl. When I used this program from superuser it will calculate correct value but in other user it calculate wrong value. I gave 'Create Procedure ' privilege to user too.But still problem exist.
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Oct 26, 2011
running on 10.2.0.5 and above satisfies the following:
having locally managed tablespace with assm enabled
create table t1 (n1 number) storage (next 1M);
insert into t1 values (1); commit;
create table t2 storage (next 2M) as select * from t1;
This will indeed set the storage option next to 2M;
The same situation in 10.2.0.4 will allways set next option for the ctas statement to the initial value of table t1.
Is this an impact of patch set 4 (10.2.0.5)? Why does it differ from 10.2.0.4 to newer releases?
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Aug 19, 2010
I need to implement a "Select All" function in a Data Block with All the Check boxes. It's a Database data block with 10 records to be displayed at a time. Check Box Items are in default layout. The requirement is when user checks/un-checks that select all check box which is placed on the left hand side of the other check boxes, it should select/deselect all the check box database items in that particular record.
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Oct 22, 2013
I made this script but I still don't quite understand if the syntax is correct. I just wanted to create a function and call it in an anonymous block. I then wanted it to use a variable as a parameter in an iteration and output the variable every iteration. It's done basically but I know it's not 100% right. The fibonacci function looks like its going to loop an infinite number of times if the parameter is greater than 2.
CREATE OR REPLACE PACKAGE myPACKAGE AS
CREATE OR REPLACE FUNCTION fibonacci
(n BINARY_DOUBLE) RETURN BINARY_DOUBLE IS
BEGIN
IF n <= 2 THEN
RETURN 1;
[code]........
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Mar 17, 2013
can we create rank on a particular column without using rownum and rank function.
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