SQL & PL/SQL :: How To Create A View Having All Rows From Tables
Apr 21, 2010
I have a table as shown below,
SQL> select * from Main_Table;
AA
--------------------
SUB1
SUB2
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'm stuck on the CREATE VIEW part and the SELECT statement to get the output of the CREATE VIEW. We were instructed not to use AND and simply use JOIN on this exercise.
Question - For employee John Smith, give the project(s) he is working on, his department's name and the name of his division. See crows foot diagram on a separate file.
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]....
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
I am using the SQL-Developer to access and manipulate a database. I am not very sure about the format of the database (I'm new to databases), but I had to setup the TNS-folder.
Anyway, I guess the problem is the same for any database.
I am having a table with the BOM (bill of material) positions of certain articles and I want to change the BOM quantities of some of the articles. What happens is that I can only change some of the rows. For other rows I get the message like (it is in German, so I try to translate it):
"data was commited in another/the same session already. row cannot be updated"
This error message looks like there is somebody else locked on the database and manipulating it, correct? Is that possible to see somewhere which processes/people are currently accessing to the database?
I saw that there is one process/another database, which is having the authorization to access to the database. But where can I check if this process is accessing to the database?
BTW: I used to do this process before, and it worked. I had been able to manipulate arbitrary entries on the database. I guess that the process or the person, mentioned above, hasn't been accessing to the database at that time.
I have the task that I have to determine the number of parts that need to be produced based on the number of products sold for the day (each product consists of many parts).
I am using SQL 11g Express.
The report would look something like this:
{OrderDate PartID PartDesc NumOfParts(Total for that day) 10-24-2011 2001 12" X 12" Solid Shelf 108 10-24-2011 2003 12" X 24" Solid Shelf 32 10-24-2011 3001 96" Side Panel 50
[code].......
My issue is, I can't get the equation right to produce the total number of parts. I think I need to multiply ProductPart.NumOfParts by SUM(CustOrder.Qty) Group by CustOrder.SKU.
Below I have what the calculations should look like
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.
I have created 3 tables and some indexes, but these objects do not show up in dba_segments view. Is this a normal behaviour? Previously, with dictionary managed tablespace, I can specify the minimum extent to create, when the table/index is created. But I'm not sure how the locally managed tablespace work.
I'm using Oracle 11g R2 (11.2.0.1.0) for Microsoft Windows (x64), running on Windows 7.For the purpose of reproducing this issue, I have created the tablespaces as follow:
CREATE TABLESPACE CUST_DATA DATAFILE 'd:appasusoradataorcl11gr2CUST_DATA01.DBF' SIZE 512K AUTOEXTEND ON NEXT 256K MAXSIZE 2000K EXTENT MANAGEMENT LOCAL UNIFORM SIZE 256K SEGMENT SPACE MANAGEMENT AUTO;
i work on oracle 8i with around 950 tables in my database. when i export or import it gives me the no of rows exported / imported from each table. is it possible to take a print out of the no of rows in each table through a single query .
select count(*) from each table takes a long time , since there are 950 tables.
We have two tables, TableA and TableB that contain list of accounts and balances.The requirement is to compare the balances of accounts in both the tables, and if there is a difference, then record that difference with account number in another table.
Both TableA and TableB contain more than 10 million rows.What is the best way to do this task in PL/SQL? A join on TableA and TableB to know the differences has become very slow due to large volume.
I have created a package with some functions in it.I want to create a view with from 2 tables but also i wanto to use the functions from some fields of the view. (e.g. if the wview has 10 fields the 5 of them will be from the 2 tables and the other from package functions).
I am about to pass 1Z0-051 and have been cramming. Ran across this scenario: Create or replace view. Correct answer: allows insert from view in multitable insert statement. Can I actually insert data from a view? My understanding is no data actually exists in a view. This has created a cavernous feeling of inadequacy.
I have a view on base tables holding historical data for previous 60 months(one table per month) with union all operators.create index on those base tables will improve performance or creating a primary key with disabled novalidate will improve for retrieving data?
The view has around 8 million data and used as a fact table with 4 dimension tables.A DTS package from MSSql side refreshes OLAP cube by retrieving data from these tables in oracle.
DECLARE L_DE_TGUP_ID BBP_ALLOC.DATA_ELEMENT.DATA_ELEMENT_ID%TYPE; L_ZERO_EXP EXCEPTION; L_DATA NUMBER; BEGIN SELECT DATA_ELEMENT_ID INTO L_DE_TGUP_ID FROM BBP_ALLOC.DATA_ELEMENT WHERE DATA_ELEMENT_CD = 'TGUP'; SELECT DECODE(UPPER('0.0028'),'',0,'0',0,'NULL',0) INTO L_DATA FROM DUAL; [code]......
Here the relationship between the source and target tables is one to one. but still i am getting "unable to get the stable set of rows from the source tables" error. Source query retrieves only 2 rows which are distinct. but still getting this error.
A block shouldn't have rows from multiple tables... Is that true? I read in one of the OTN thread (i don't exactly remember the thread name) that a block can have data from multiple tables. If it doesn't have, what's the table directory in block signifies?
How do i split a string based on a space. And then create a view with three columns of that split string.
For example if i have a table with Full name as a column how do i split that string and create a view with firstname, middlename, lastname as column names with the split string as data.
there is a diff. problem for me.when i create table through inline view then it shows 2246 records but if i check these records only in select statement then it shows 124 records. i cant understand how table shows 2246 records even then atual records in inline view shows only 124 records.
following is a query
create table sam as select * from (( select distinct stck.item_code from ( select item_code,bal
