I just wanted to know how the query will be executed in case of where clause and ROWNUM clause. e.g, consider below query.
SELECT * FROM emp
WHERE dept IN (20, 30, 21)
AND salary < 10000
AND rownum <2;
My question is that when rownum will be executed?
1. First all the data according to where clause will be fetched and rownum is assigned and then rownum will be executed on that data.
2. First complete data will be fetched, ROWNUM will be applied and then WHERE clause will be executed along with ROWNUM clause.
If I have Before header Application level process (with id=5) and page Before header process (with id=5), which one will execute first? Is there any relation based on id or there is other logic? I want to understand general order of execution in the same area without manual experimenting and debugging data in both process?
Question is related for Application Express 4.2.1.00.08.
Performance issues with the below mentioned sql.After gone through execution plan we have found out the reason but we couldn't able to change the execution plan the way we want.
If we could able to join
HRMGR.HR_EXPANDED_BOOK table with MISBOMGR.ibm_client_mgr7_empid, MISBOMGR.ibm_client_mgr6_empid at earlier stage means before HRMGR.HR_EMP_STATUS_LOOKUP then my issue will be solved but somehow optimizer is not considering that path. Even i have added push_subq hint which will push sub queries to execute at earlier stage but no use. Why push_subq hint is not working in this scenario and what can be the other alternative to change the driving path.
Query :-
select /*+ push_subq */CEMP.EMP_ID, CEMP.EMP_STATUS_CD, EMP_STATUS_DESC, MGR_6_EMP_ID, MGR_7_EMP_ID FROM [code]........
BANNER ---------------------------------------------------------------- Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bi PL/SQL Release 10.2.0.1.0 - Production CORE 10.2.0.1.0 Production TNS for Linux: Version 10.2.0.1.0 - Production NLSRTL Version 10.2.0.1.0 - Production
I'm getting this error while executing a package.But this is unpredictable because sometimes it's coming and sometimes it's not. Everytime I'm passing the value as 'ALERT' for the transaction name. Sometimes it's successful and sometimes it's throwing ORA-06592
CASE UPPER(IC_TRANSACTION_NAME) WHEN 'ALERT' THEN SELECT A.FACILITY_ID INTO VN_FACILITY_ID FROM ALERT A WHERE A.ALERT_ID = IN_PARENT_NODE_ID; INSERT INTO TRANSACTION_HISTORY (TXN_HISTORY_ID,
Name Null Type --------------------------- -------- ------------- RPTNO NOT NULL NUMBER RPTDATE NOT NULL DATE RPTD_BY NOT NULL VARCHAR2(25) PRODUCT_ID NOT NULL NUMBER
describe rptbody
Name Null Type ------------- -------- ------------- RPTNO NOT NULL NUMBER LINENO NOT NULL NUMBER COMMENTS VARCHAR2(240) UPD_DATE DATE
The fact is that we store some header in RPTHEAD and store real data in RPTBODY, the question is that if I use below SQL to query all data for a 'PRODUCT_ID'.
SELECT t0.LINENO, t0.COMMENTS, t0.RPTNO, t0.UPD_DATE FROM RPTBODY t0 , RPTHEAD rpthead WHERE ( t0.RPTNO = rpthead.RPTNO AND t0.UPD_DATE>=to_date('1970/01/01 00:00:00','YYYY/MM/DD hh24:mi:ss') AND rpthead.PRODUCT_ID IN ('4647') )
I do not want to have 'ORDER by' clause since data set is too large, the sorting takes long time, is there any way to get the result rows in the order sorted by RPTNO? We have the index for RPTNO on RPTBODY.
I'm starting to Oracle and am having a doubt, need to check if a variable is null if I need to make an appointment if you do not need to make another appointment. I thought I was doing fine, but Oracle is pointing this error: "ORA-00900: invalid SQL statement."
- Case
CASE WHEN 1 = 1 THEN select * from BANANA WHEN 1 = 2
Im trying to make a query to get the grades of students, I already figured out how to get the average from the exams. Now I would like to make like a select case or if statements to get the actual grade.
Something like this: average > 89 then grade = 'A' average > 79 then grade = 'B' average > 69 then grade = 'C' average > 59 then grade = 'D' else grade = 'F'
we are executing a load activity every day through .NET Application, we taking a time solt for Database to ensure nobody is using at that time.But the AWR reports showing different issues on different days.
I have a query that will either return one record or zero records. When it returns zero records I want to replace my attributes with a sentinel, like 'N/A'. I tried the CASE statement but couldn't get anything to work
Sample (does not work): select (case when exists (select product from tbl_product where productid = '123') then product else 'N/A' end) product from tbl_product where productid= '123'; If one record exists it should produce: 'My Widget' (or whatever) If zero records exist it should produce: 'N/A'
select empno,ename,deptno,employee_status from emp,dept where emp.deptno=dept.deptno and ( employee_status in(Case employee_status when {?Status}=1 then 'A' when {?Status}= 2 then 'T' When {?Status}= 3 then 'A'||','||'T')) OR ( end_date >= {?START_DATE} AND end_date <= {?END_DATE} ) )
Since when i pass employee_status as input 1 it have given me 4 records. When I pass employee_status as input 2 it have given me 3 records. When I pass employee_status as input 3 it should give me 4 records + 3 records=7 records.
4 records for employee_status 'A' 3 RECORDS for employee_status 'T' 7 records for employee_status 'A' AND 'T'
I am trying to create a query that displays the given error message if the result of my COUNT(*) is smaller than 1, but displays the result of my first query (data) if the total count is bigger than 1 (read: the query found data, so it needs to display the rows according to the search).
What do I need to do to display 'data' if 'data2' contains rows?
WITH data AS (SELECT a.order_id, a.session_id, a.log_id, b.date_of_order, a.operation, b.funct_prod_code, b.sts_status_code, b.ost_order_situation_code, c.order_situation_oms,
I am facing a problem while retrieving data from table using DECODE/CASE.
Table: PARAM_MSTR
MIN_VALMAX_VALPARAM_CODE DESCRIPTION DATATYPE AB1000 HARD PARAMETERTEXT CN1000 SOFT PARAMETERTEXT 0501001 CRYSTAL PARAMETERNUMBER 512001001 STONE PARAMETERNUMBER
Now I want to get the parameter description based upon the PARAM_CODE and a value passed which should be in range of MIN_VAL and MAX_VAL. Means when I pass PARAM_CODE=1000 and :parameter=A, then it should check the DATATYPE of the PARAM_CODE, in our case it is 'TEXT' so it should check the passed value between MIN_VAL and MAX_VAL like
:parameter BETWEEN MIN_VAL AND MAX_VAL and should return 'HARD PARAMETER'. If I pass PARAM_CODE=1001, then the DATA_TYPE is 'NUMBER', so it will check the :parameter value as Number. Like :parameter BETWEEN to_number(MIN_VAL) AND to_number(MAX_VAL)
For example: PARAM_CODE :parametr Result 1000 A HARD PARAMETER 1000 C SOFT PARAMETER 1000 P NULL 1001 25 CRYSTAL PARAMETER 1001 99 STONE PARAMETER 1001 201 NULL
I have written a query using DECODE and CASE statement but it is not working properly.
SELECT * FROM param_mstr WHERE PARAM_CODE=1000 AND :parameter BETWEEN DECODE(DATATYPE,'NUMBER',CAST(MIN_VAL as NUMBER),MIN_VAL)AND DECODE(DATATYPE,'NUMBER',CAST(MAX_VAL as NUMBER),MAX_VAL)
Can we use the sequence.nextval,sequence.currval inside case block.
CREATE TABLE EQUALITY_TEST(NUM1 NUMBER, NUM2 NUMBER, SEQ NUMBER); INSERT INTO EQUALITY_TEST VALUES ( 2 ,0 , NULL); INSERT INTO EQUALITY_TEST VALUES ( 2 ,2 , NULL); INSERT INTO EQUALITY_TEST VALUES ( 2 ,2 , NULL); INSERT INTO EQUALITY_TEST VALUES ( 12 ,2 , NULL); INSERT INTO EQUALITY_TEST VALUES ( 12 ,12 , NULL); INSERT INTO EQUALITY_TEST VALUES ( 12 ,12 , NULL); CREATE SEQUENCE SEQ_TEMP START WITH 100 INCREMENT BY 1;
Now i need to update SEQ column with SEQ_TEMP sequence. When NUM1,NUM2 values are unequal sequence should be incremented otherwise need to use the same sequence number(CURRVAL)
I have tried like this
UPDATE EQUALITY_TEST SET SEQ= CASE WHEN NUM1=NUM2 THEN SEQ_TEMP.NEXTVAL ELSE SEQ_TEMP.CURRVAL END ; SELECT * FROM EQUALITY_TEST;
insert into lookups values ('Rent' , 500); insert into lookups values ('Breakpoint' , 10);
create table products (id number, cost number, year varchar2(4));
insert into products values (1, 1000, '2011'); insert into products values (1, 2000, '2011'); insert into products values (2, 100, '2011'); insert into products values (3, 50, '2011');
commit;
I want to write a query which lists the IDs and the sum(cost), and a Y/N indicator which is set to 'Y' IF sum(cost) > ( (lookups.rent value) * (100 - lookups.breakpoint value))/100
I have written this query:
SELECT id, sum(cost)cost, year, CASE WHEN cost > ((SELECT amount [code]....... ORDER BY id;
This returns
ID COST YEAR YN --------- ---------- ---- - 1 1000 2011 Y 1 2000 2011 Y 2 100 2011 N 3 50 2011 N
The YN is correct, but it needs to sum the amounts. So there should only be one row for id1 = 3000.e.g.
ID COST YEAR YN --------- ---------- ---- - 1 3000 2011 Y 2 100 2011 N 3 50 2011 N
I am not sure how to do this. Or is there a better way of doing this than using CASE.
The query has a case statement in the where clause so that results can be filtered. If I pass "ut" for sso_id then the query returns 21 rows. If I remove the case statement and hard code "a.sso_id like lower('ut'||'%')" then the query returns 41 rows. The query should be returning 41 rows all the time.
Problem:
When passing "ut" as an SSOID parameter to the Procedure the query returns 21 rows.Taking the query and hard coding "a.sso_id like lower('ut'||'%')" the query returns 41 rows.
Result: query should be returning 41 rows when "ut" is passed an an SSOID parameter.
Returns 21 rows
procedure SSO (SSOID in varchar2 default null, Name in varchar2 default null, Campus in varchar2 default null, Department in varchar2 default null,
[code]...
Returns 41 rows
open Results for select a.sso_id, (a.name_last||', '||a.name_first) as name, b.site,
[code]...
Test Data CREATE TABLE ID ( SSO_ID VARCHAR2(60 BYTE), NAME_FIRST VARCHAR2(100 BYTE), NAME_LAST VARCHAR2(100 BYTE),
[code]...
Test Data CREATE TABLE NT ( LOWER_NT_ID VARCHAR2(60 BYTE), DEPARTMENT VARCHAR2(100 BYTE),
Table X includes multiple transactional records per household.I need to create a mailing list pulling only one record per household, choosing the one with the most recent date.
Each record within this table will have a Household_ID and a Date, so as an example, the table could have
I'm working on a nested case statement, can't seem to get it right.We have a table that has injury_codes. What I'm trying to do is come with a nested case statement that will put the codes in a specific_cat, and based on the specific_Cat, assign a Generic_cat.
Example. I have codes 11,12,13,14,15, 15, 17, 18, 19, 20, 21, 22 Codes 11, 12, 13 have a specific_cat "Head Injury" Codes 14, 15, 16 have a specific_cat "Spinal Injury" Codes 17, 18 have a specific_cat "Burns".
All 3 of these specific_cat come under the generic_cat "Trauma"
Codes 19, 20 have a specific_Cat "High Risk Pregancy" Codes 21, 22 have a specific_cat "Premature Birth".
All 2 of these specific_cat come under the generic cat "OBGYN"...So my case stement should return :
When I tried to have a Cursor with SELECT CASE statement in Forms 6i , it is not working. But the same query is working in SQL PLUS . We cannot use case in Forms 6i ?
