Insert into rent(customer_id) values (1);
Insert into rent(customer_id) values (2);
Insert into rent(customer_id) values (3);
Insert into rent(customer_id) values (4);
[code]...
Now my requirement is i need to assign doc_num from doc_id table to 4 customers in rent table randomly. I mean update doc_num in rent table from doc_id table randomly. how to write update statement.
I am soon engaging in a project where we will deploy three triggers to each table in a customers live database. One each for Inserts,Updates and deletes.
These triggers write or update a row in a separate table on a different schema.
We have experienced locking issues on these tables previously with SQL Server. Are there settings we can look at to improve performance?
I need the number of unique customers which buy product "7" per month.
Product Customer Date 7 A 22.07.2013 7 A 22.07.2013 7 A 22.07.2013 1 B 23.10.2013 1 A 20.07.2013 7 C 23.07.2013 7 C 23.07.2013 11 D 30.07.2013 1 C 30.10.2013 1 E 01.11.2013 11 C 04.11.2013
My first move: SELECT Product, Customer, Date FROM TABLE WHERE Product = '7' AND Date BETWEEN StartDate AND EndDate
The communication table has around 1 billion rows which is partitioned by a date column which is not used in the query. The hierarchy table has only 10000 rows. rewrite the query if its possible.Its trying to find the count of customers[distinct] which are in the same campaign.
select h.brand_cd, h.campaign_name, h.campaign_start_dt, h.campaign_name,h.campaign_desc,h.subject, count(distinct cc.customer_id) from communication cc,hierarchy h where cc.campaign_hierarchy_id = h.campaign_hierarchy_id and h.brand_cd in ('ABY','AYO') AND H.CAMPAIGN_OWNER = 'WONDER' and h.campaign_start_dt >'1-JUL-2011' group by h.brand_cd, h.campaign_name, h.campaign_start_dt, h.campaign_desc,h.subject;
I need function to pick the record from DB random manner.For example, say we have 500 records and input value to the function is 5 means, it should display the records randomly between 1 to 5
what I want my code to do is display the customers who live in either Georgia or Florida who recently placed an order totaling more than $80.
My code so far:
SELECT LastName, FirstName, SUM(Retail * Quantity) AS Total From CUSTOMERS, ORDERS, ORDERITEMS, BOOKS Where (State = 'FL' OR State = 'GA') Group by customers.customer# Having SUM(Retail * Quantity) > 80.00;
I don't know, if this is the intent behavior of oracle or not. But i noticed, my queries Execution plan randomly changes after statistics collection. Several tables are truncated after the daily run at 8AM and statistics gathered for all the tables in that schema.
However execution plans for 2-3 sql statements always changes after this and performance is brought back to normal by executing the procedure by explicitly calling it from the command line with arguments instead of bind variables.
Here I want to update the chain_id & brand_id which are currently NULL in order to make every row eligible for further processing.
There is another table(say chain_brand) which maintains the relationship between chain_id and brand_id. one chain_id can have multiple brand_ids eg.,
chain_id brand_id 101 2011 101 2012 102 2020
Now I need a script that could randomly pick values from chain_brand table and update the accounts table. condition is those values should be unique for an account_id eg.,
So if the truncate syntax goes like TRUNCATE { TABLE [ schema. ]table [ { PRESERVE | PURGE } MATERIALIZED VIEW LOG ] | CLUSTER [ schema. ]cluster } [ { DROP | REUSE } STORAGE
Where it is really not mandatory to add (DROP STORAGE) to the truncate statement knowing fully well the Watermark is dropped. Lately some of my Truncate statements that are part of Plsql package have been failing randomly with a ORA-03291 error. I iteratively walk through a list to truncate some tables and 1 or 2 out of 10 randomly fail. But work fine when I rerun. Its been a night mare for couple of weeks now. This code was working alright for last several years now in 10g and previously 9i. Do you believe some changes to settings on the Oracle database or to blame for ?
ORA-03291: Invalid truncate option - missing STORAGE keyword ORA-06512: at "xxxx.xxxxxxxxx", line 35 ORA-06512: at line 2
I was about to move some tables from one table space to another but it seems it is not possible to move partitioned tables between table spaces of different block sizes.
So far the only option I have is to export and then import back the data.
know if there is any way to move a partitioned table between table spaces of different block size?
I have a requirement to import text files which are generated from 3d modelling software xsteel where it records all geometric information and i want to import this information into oracle table.
primary key constraint on transaction_dtl_bk is affecting the insertion of next correct rows.
CREATE OR REPLACE PROCEDURE NP_DB.san_po_nt_wnpg_1 ( dt DATE ) IS v_sql_error VARCHAR2 (100); -- added by sanjiv v_sqlcode VARCHAR2 (100); ---- added by sanjiv added by sanjiv
There is an interface table and there is an normal transcational table..interface table is being compared with normal table and if match found the result is dumped into another normal table.
I am using two cursors one is to query the interface table and in a for loop pass the results to the second cursor..The interface table is having 5000 + rows and the transcation table is having more than 3.7 millions ..and the program is taking lots of time to execute..took almost 35-45 minutes..
creating an sql script that can update info from one table in dbase1 to another table in dbase2 that has the same columns and if possible insert date and time in one column when the synchronized is done?
I am trying to execute dynamic SQL in Stored Function and I don't know how to do this.
Explanation:
In the function I am calling pr_createtab is procedure which will create a physical table and return the table name in the out variable v_tbl_nm.
I need to query on this dynamic table and return the result as return result. But i am not able to do it.
Here T_web_loylty_report_table is a type.
CREATE OR REPLACE function CDW_DSS.f_ReturnTable(i_mrkt_id in number, i_cmpgn_year in number) return T_web_loylty_report_table is v_tbl_nm varchar2(50); i_cntry_cd varchar2(20); v_sql_str varchar2(32567); [code]......
We have to load 10 million rows in a table from another table based on the multiple joins. How much tablespace size we allocate to the table and for performance point of view how much should be the SGA size.
We have a table in the client database that has two columns - column parent and column child. The whole hierarchy of DB table dependencies is held in this table.If Report 1 is dependent on Table A and Table A in turn is dependent on two tables Table M and Table N. Table N is dependent on table Z it will appear in the db table as,
Hierarchy Table Parent Child Report1Table A Table ATable M Table ATable N Table NTable Z
Requirement :
From the above structure, we need to build a table which will hold the complete hierarchy by breaking it into multiple columns.The o/p should look like this
-ParentChild 1Child 2 Child 3 -Report1Table ATable M -Report1Table ATable N Table Z
Child 1, Child 2, Child 3 ....and so on are columns.The number of tables and the no of hierarchical relationships are dynamic.
SQL Statements to create hierarchy table:
create table hierarchy (parent varchar2(20), child varchar2(20)); insert into hierarchy values ('Report1','Table A'); insert into hierarchy values ('Report1','Table B'); insert into hierarchy values ('Table A','Table M'); insert into hierarchy values ('Table B','Table N'); insert into hierarchy values ('Report2','Table P'); insert into hierarchy values ('Table M','Table X'); insert into hierarchy values ('Table N','Table Y'); insert into hierarchy values ('Report X','Table Z');
Approached already tried :
1) Using indentation : select lpad(' ',20*(level-1)) || to_char(child) P from hierarchy connect_by start with parent='Report1' connect by prior child=parent;
2)Using connect by path function : select * from (select parent,child,level,connect_by_isleaf as leaf, sys_connect_by_path(child,'/') as path from hierarchy start with parent='Report1' connect by prior child =parent) a where Leaf not in (0);
Both the approaches give the information but the hierarchy data appears in a single column.Ideally we would like data at each level to appear in a different column.
There is a requirement to make a table data in a database (eg: HR database) available in another database (eg: EMP database), instead of accessing it using database link. In EMP database(where data needs to be cloned), data will only be queried and no write operation will be done. Data in remote database (eg: HR DATABASE) will be occassionally fully truncated and reinserted. The plan is to do a similar truncate and reinsert of data (from HR database) into EMP database monthly once using dbms scheduler job. So basically data in just one table needs to be cloned in another database.
Question: For this situation, is a regular table or Materialized view the right choice to clone the table in EMP database and why? The table in HR database (remote database) is not very big.
1.Is it necessary to reorganize a table and index after the deletion of records from table ? Because i see some change in table size after table and index reorganization.
2.Will re org table and index improve the database performance ?
Oracle 11gI have a large table of 125 million records - t3_universe. This table never gets updated or altered once loaded, but holds data that we receive from a lead company. I need to select records from this large table that fit certain demographic criteria and insert those into a smaller table - T3_Leads - that will be updated with regard to when the lead is mailed and for other relevant information. select records from this 125 million record table to insert into the smaller table.
I have tried a variety of things - views, materialized views, direct insert into smaller table...I think I am probably missing other approaches. My current attempt has been to create a View using the query that selects the records as shown below. Then use a second query that inserts into T3_Leads from this View V_Market. This is very slow. Can I just use an Insert Into T3_Leads with this query - it did not seem to work with the WITH clause? My Index on the large table is t3_universe_composite and includes zip_code, address_key, household_key.
CREATE VIEW V_Market asWITH got_pairs AS ( SELECT /*+ INDEX_FFS(t3_universe t3_universe_composite) */ l.zip_code, l.zip_plus_4, l.p1_givenname, l.surname, l.address, l.city, l.state, l.household_key, l.hh_type as l_hh_type, l.address_key, l.narrowband_income, l.p1_ms, l.p1_gender, l.p1_exact_age, l.p1_personkey, e.hh_type as filler_data, 1.p1_seq_no, l.p2_seq_no , ROW_NUMBER () OVER ( PARTITION BY l.address_key ORDER BY l.hh_verification_date DESC ) AS r_num FROM t3_universe e JOIN t3_universe l ON l.address_key = e.address_key AND l.zip_code = e.zip_code AND l.p1_gender != e.p1_gender
I want to do an import of a table from my old dump file.The same table is already there in the development box but few more columns are added to that table while testing so in the dump those columns are not available.
TABLE_EXISTS_ACTION=TRUNCATE The new table SQL> desc "TESTINVENTORY"."TTRANSACTION" Name Null? Type ----------------------------------------------------------------------------------- -------- -------------------------------------------------------- TRANSACTIONIDNOT NULL CHAR(26) BRANCHCODE NOT NULL CHAR(3) EXTERNALSYSTEM NOT NULL CHAR(3) EXTRACTSYSTEM NOT NULL CHAR(3) OWNERBRANCHCODE NOT NULL CHAR(3) TRADEREFERENCE NOT NULL CHAR(20) [code]...
I have got two tables emp_dtl and iou_tab. i have already made entries i.e booking no, emp_cd, emp_name etc in emp_dtl snc its my master table. I want to retrieve the booking nos through lov in iou_tab which are generated in emp_dtl and corresponding info of emp_cd and emp_name should come in the respected fields in iou_tab.
I stumbled about some weird 11gR2 behavior (running on AIX).When I performed a join between a table with user based content (parts belonging to an sourcing scope) and a base table (parts available) whereas the parts have to fulfill a special regular expression, it showed that the same query is faster when using outer join than inner join (about 0.7sec vs. 20sec; which makes me believe that regexp_like works wrong when involved in an inner join).
i tried the same statement with a standard like (but not fulfilling the same condition).This time performance was as expected (inner join outperforming outer join).
Oracle version information Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production PL/SQL Release 11.2.0.2.0 - Production CORE 11.2.0.2.0 Production TNS for IBM/AIX RISC System/6000: Version 11.2.0.2.0 - Production NLSRTL Version 11.2.0.2.0 - Production [code]...
I can see it, the execution plan for the "inner join" doesn't show so much more costs than the one for the outer (but why at all is does an inner join cost more?) ...The execution plan for both "not like" is the same and (surprisingly ;-) ) similar to "outer-regexp".
I hope sample data are not needed as there would be needed a lot...this is the second time I came across the "plan worse but execution time better" phenomenon.
I have a table that has 2 columns of type nested table. Now in the purge process, when I try to truncate or drop a partition from this table, I get error that I can't do this (because table has nested tables). how I will be able to truncate/drop partition from this table? IF I change column types from nested table to varray type, will it work?
Also, is there any short method of moving existing data from a nested table column to a varray column (having same fields as nested table)?
