I have problem with merging rows into view. I have created "INSTEAD OF" triggers on the view for insert/delete/update of rows. However, the merge is not working and it needs rowid to work. Is there any way how to make MERGE working here ? I must use merge, because I am changing the structure of database used for large java application. And it uses tons of merge commands,changing them to insert/update is inefficient because of development-time and of course resulting execution-time.
create table val_00 (
id number(10),
data varchar2(100),
constraint pk_val_00 primary key (id) validate
) organization index;
[code]....
Query - SELECT * FROM sysadm.ps_tmtl_post_vw a WHERE a.month_prepared_for = 'JUNE,2012' AND a.ca_status = 'P5 CUST GO AHEAD'
[code]...
When I try for the SQL-Tuning sets its throws error that
ADDITIONAL INFORMATION SECTION ------------------------------------------------------------------------------- - The optimizer could not merge the view at line ID 2 of the execution plan. The optimizer cannot merge a view that contains a set operator.
I read earlier forum where it says that optimizer unable to interpret the conditions like order by etc etc.Now there is one view which is getting used in the query when I did select * from vw it took more than 16 hrs to complete. (bad view).
Attached File(s)
exec_plan.txt ( 2.06MB ) Number of downloads: 1 view_def.txt ( 14.12K ) Number of downloads: 2
What is the easiest way to add 2 rows together? I need this results set below as is except I need rows with activity codes 0 and 30 to be merged together into Activity Code 0. So, Regular hours would be 7466.75. Do I need to do a Union or is there a more elegant solution?
My current sql results set looks something like this:
Activity Code Activity Code Desc REGULAR OT NONPROD DEPARTMENT 0 0: Business As Usual 7409.25 305.5 1603.25 Information Technology 10 10: Special Projects 190.75 17 0 Information Technology 20 20: Strategic Initiatives 1067 52 0 Information Technology 30 0: Business As Usual 57.5 0 0 Information Technology
and I want my new results to look like this:
Activity Code Activity Code Desc REGULAR OT NONPROD DEPARTMENT 0 0: Business As Usual 7466.75 305.5 1603.25 Information Technology 10 10: Special Projects 190.75 17 0 Information Technology 20 20: Strategic Initiatives 1067 52 0 Information Technology
How to merge multiple rows into single row (but multiple columns) efficiently.
For example
IDVal IDDesc IdNum Id_Information_Type Attribute_1 Attribute_2 Attribute_3 Attribute_4 Attribute_5 23 asdc 1 Location USA NM ABQ Four Seasons 87106 23 asdc 1 Stats 2300 91.7 8.2 85432 23 asdc 1 Audit 1996 June 17 1200 65 affc 2 Location USA TX AUS Hilton 92305 65 affc 2 Stats 5510 42.7 46 9999 65 affc 2 Audit 1996 July 172 1100
where different attributes mean different thing for each Information_type. For example for Information_Type=Location
Attribute_1 means Country Attribute_2 means State and so on.
For example for Information_Type=Stats
Attribute_1 means Population Attribute_2 means American Ethnicity percentage and so on.
I want to create a view that shows like below:
IDVal IDDesc IDNum Country State City Hotel ZipCode Population American% Other% Area Audit Year AuditMonth Audit Type AuditTime 23 asdc 1 USA NM ABQ FourSeasons 87106 2300 91.7 46 85432 1996 June 17 1200 65 affc 2 USA TX AUS Hilton 92305 5510 42.7 46 9999 1996 July 172 1100
Here the SUB1 and SUB2 are "tables" and are similar in their structure. The "Main_Table" will be update dynamically and the no of rows in this table will vary.
Now my question , i need to create a view which will have all the rows from these tables ,in the current case it is something like
create or replace view sample as select * from SUB1 union all select * from SUB2
How can this be achived. I tried as shown below:
spool file_to_exe.sql select 'select * from ' || AA ||' union all ' from Main_table; spool off
i will end up in a union all "extra" , if i do like this.
I need to view the rows of the result of a select query in table format in GUI application.I have used XMLELEMENT to somewhat match the scenario to display as ','(comma) separate values as b belwo
We have a requirement where we need to publish only the delta/changes made to an existing materialized view. This MV is fast refreshed over a db link. Since, MV will have all the data, we won't
1] Created MV Log
CREATE MATERIALIZED VIEW LOG ON SHRTS_FLNG_PRCSD WITH PRIMARY KEY, SEQUENCE INCLUDING NEW VALUES;
2] Create MV
CREATE MATERIALIZED VIEW MV_SHRTS_FLNG_PRCSD (ITRTN_NB,UNQ_ID,XCHNG_ORG_ID,FLNG_ST,MAX_PRCSD_ITRTN_NB,SBMTD_SCRTS_AM,SBMTD_PSTN_AM) BUILD IMMEDIATE REFRESH FAST ON DEMAND WITH PRIMARY KEY AS
4) I have created a temp table to capture the diff between MV and newly inserted Deltas. I have added SEQ_NB column using Oracle sequence to capture the diff
CREATE TABLE MKT_CMPLC.TMP_SHRTS_FLNG_PRCSD ( ITRTN_NB NUMBER(2) NOT NULL, UNQ_ID CHAR(38 BYTE) NOT NULL, XCHNG_ORG_ID NUMBER(8) NOT NULL, FLNG_ST VARCHAR2(9 BYTE),
[code]....
5) I have refreshed the MV
exec dbms_mview.refresh('MV_SHRTS_FLNG_PRCSD');
6) In order to capture the new inserts, I am using following DML
INSERT INTO tmp_SHRTS_FLNG_PRCSD SELECT ITRTN_NB, UNQ_ID, XCHNG_ORG_ID, FLNG_ST, MAX_PRCSD_ITRTN_NB, SBMTD_SCRTS_AM,
[code]....
We need only delta records. Is there any way to extract actual rows from MV logs.
run down of the implications of MERGE by ROWID in such a fashion:
CODE MERGE INTO XXWT_AP_ACCRUALS_RECEIPT_F EXT USING ( SELECT PO_DISTRIBUTION_ID,
[code]...
Can this lead to an "Unstable Set of Rows?". Is it possible for the ROWID's to change during the execution of this statement - meaning certain ROWIDs identified in the SELECT will not actually be updated when it comes to the MERGE operation?
Basically, is it sound practice to use ROWID to merge on - in cases where you dont have a WHEN NOT MATCHED condition?
I'm trying to create a Materialized View on a remote database from a simple view. The reason is, the data owners don't want to grant explicit tables privileges to external subscribers.
A new schema is created to publish data in the form of a view. I've created mlogs on the master tables, and granted them to the subscriber, but it's still complaining about a missing primary key on the view. A primary key does exist in the master table.
Is there another work around for this situation without having to work inside the data sources' environment?
We wrote one data load process to load GZ files into Database.during process we will change client facing view definitions to backup table so that we can work on base tables.
This view definition changes are related to FROM and WHERE clause (not columns/type). during load process, client/user may connect to current server and accessing these views. My question is what will be the reflection of changing view definition while user is accessing view?
I created a scenario- STEP1: Created a view- create or replace view view_01 as select object_name from dba_objects union all select object_name from dba_objects union all select object_name from dba_objects union all [code]....
View definition is replaced by new definition while select is executing on that view. select returned number of records as per view definition one.
Procedure A and Table A are located in Schema A. Procedure A performs a merge between View B of Schema B and Table A. Procedure A is giving a ORA-00942(table or view does not exist) for the following line ... USING (SELECT * FROM B.VIEWB) D
Code excerpt --------------------- MERGE INTO A.TableA C USING (SELECT * FROM B.ViewB) D ON (C.dealerid = D.di_dealer_id) WHEN MATCHED THEN UPDATE SET
I am trying to merge into test table using a cursor. If the contract number in the test table matches with the contract number from the cursor then i need to update the creation_date else i need to insert values from the cursor into the test table.
MERGE INTO test USING cursortest ON (i.contract_number = test.contract_number) WHEN MATCHED THEN [code]......
how to use the MERGE Statement. actually I've used oracle Merge Statement before and it works very well. However today I tried to use and perform a command like that:
Merge into myTable mt using ( select 'data' field1, 'data2' field2, ect from dual union select 'data' field1, 'data2' field2, ect from dual union
[code]...
This has not worked.What am I doing wrong?What could I do to solve this problem and axecute this statement sucessfully?
My teacher taught the lesson of DML statemnts, he told us how does merge works , but he did not give us any query for that,provide query for Merge and if possible then explain it too , I am using Oracle 10g Sql Plus.
