just wanted to know if i create a table with 1000 columns, and use only few of them and remaining are for future use, will it affect the performance and storage?
Table contains 10k records,we are going to insert data into another table with FORALL bulk collect limit 1000. if i use 10000 ,it's completed fast compared to 1000 limit.Can u tell me which one is better Limit.
I need to create a stored procedure in Oracle 9i which will automatically delete data one by one from a particular table and then by means of same procedure insert record one by one in same table.
I have to write a procedure that accepts schema name, table name and column value as parameters....I knew that i need to use metadata to do that deleting manually.
I have a table in schema with a BLOB field. I store employee's picture in this field. Fields in this table are emp_id (number) emp_name (varchar2) and emp_photo (BLOB). I want to ask if there is a way in pl / sql that i could empty this BLOB field to null or reset this field so that user can change the saved photo graph and save another one.
what i am looking for is something like
alter table employee set emp_photo = empty_blob() or alter table employee set emp_photo = null
I am trying to run the following query below in Oracle:
Select Acct_Num, Customer_Name From Database Where Acct_Num IN ( 1, 4, 104 .., .., 192384, 200002 )
When I attempt to run the query, I get the error message: "ORA-01795 maximum number of expressions in a list is 1000"
Is there any way I can execute this query w/o having to break the 'IN' list up by 1,000 Acct_Num over numerous amount of times? I know the 50,000+ accounts I want the info on but they are not ordered and they mix ranges with accounts I don't want. Therefore I can't use a 'BETWEEN' clause. Also, I don't have the ability to create a temp table.
I have an app that reads records from a driver table in order to update another (account) table. The idea is that it runs quickly but does not impact other processes on the system. In total I have around 1M records to update.
Originally I wanted to BULK COLLECT and employ a LIMIT of 1000 with a FORALL. The problem with this approach though is that I make two updates. One to the target table but I also need to update the driver table showing that I have processed the record. Therefore I cannot use this option to commit every time I reach the LIMIT by having a COMMIT inside the LOOP.
So instead I I have a FOR LOOP and test the count, if it is 1000 then I want to commit. I thought this syntax would be fine but I get the 'Fetch Out of Sequence' error. Below is a copy of the code.. Is this being caused by the double update... as the format of the code looks correct to me (though it is late!!)?
PROCEDURE update_set IS CURSOR cur_get_recs IS SELECT account_num, ttw_active_flag, acct_rowid, rowid driver_rowid FROM driver_table FOR UPDATE OF processed; [code]...
I am having one table with 4 columns where some 1500 records are there. Now I created one new column with number data type and i want value to be updated for that column starts with 1000 onwards.
Next week I will be getting an input file which will contain over 1000 data columns to be loaded into ORACLE. It's about 6,400 characters in length.
My question is...has ever created a huge ctl file like this to be used for SQLLoader, using so many columns? I will be sending certain columns(data) to certain tables, so it's not just going into 1. It will be about 6 tables.
2)select client_id, count(*) from TCLIENT_NOTIFICATION_PACK where client_id=1620560178 group by client_id having count(*) > 40 order by 2 desc client_id count(*) ----------- --------- 16205601785128
3) select client_id,clnt_notification_pack_tid -- bulk collect into v_client_id,v_notif_tid from (select clnt_notification_pack_tid, client_id, clnt_notification_pack_typ_tid, crte_dt,
[code]....
4) Iam using the below proc to delete the rows from table, except the 4 rows returned above
declare v_clnt_notification_pack_tid TCLIENT_NOTIFICATION_PACK.CLNT_NOTIFICATION_PACK_TID%type; tYPE t_client_id is table of TCLIENT_NOTIFICATION_PACK.client_id%type; tYPE t_notif_tid is table of TCLIENT_NOTIFICATION_PACK.clnt_notification_pack_tid%type; v_client_id t_client_id; v_notif_tid t_notif_tid;
[code]....
5) After running this procedure, i shud see 5124 records, but i see zero records.
I want to delete the duplicate rows in a table. there is no column which can be used to differentiate between the rows.
SELECT column_name1 FROM [table] WHERE column_name2 = cond GROUP BY column_name1 HAVING COUNT (column_name1) > 1
from the above query i can find the duplication in the table and can delete through it. But what i want one record of each duplication not to be deleted most probably the record added last to the table.
I am trying to schedule a store procedure and wanted to remove some data from a table starting from a date and increase the delete by day until a specified date. I wrote the below function; but i can't get to work.
--Start CREATE OR REPLACE FUNCTION remove_DateField return VARCHAR2 IS
i PLS_INTEGER; startdate Date ; endDate Date; currentDate Date; stopDate Date; [code]....
In oracle 9i ........How to delete duplicate entries in a table ?
if suppose in a table named office, one or more entry(row) is repeated more then twice or minimum twice. I need a query to delete the multiple entries ....
Note: --->No constraints applied on the table. --->No Primary Key --->You cannot create any object....that is no view or a duplicate table can be created
I am trying to delete duplicates from table without using rowid.
here is data:-
create table test(col1 number(3),col2 varchar2(20)); insert into test values(100,'rocky'); insert into test values(100,'rocky');
[Code]....
I know i am perfoming dml on view. IT wont allow me to perform DML on view which contain columns with expression. IS there any way to delete duplicates without using rowid?
I have a parent table and child table. I want a row to be deleted from the parent table which is referenced by a child row. Is there a way to achieve this. I dont have permission to re create the table or alter the table using delete cascade option. Is there a way to do it in sql.
SQL> create table t1(a number primary key, b number); SQL> create table t2(c number, d number references t1(a)); SQL> insert into t1 values(1,2); SQL> insert into t1 values(2,3); SQL> insert into t1 values(3,4); SQL> insert into t2 values(10,3); SQL> insert into t2 values(20,2); SQL> delete from t1 where a=2; delete from t1 where a=2 *
ERROR at line 1: ORA-02292: integrity constraint (CISBATCH.SYS_C00763501) violated - child record found
My aim is to delete duplicates out of above data, with the below condtions.
1) first record with value 30 and then with value 0. 2) if there are 3 duplicate records ex: ID is 1 and Group KK, then i have to delete both 30 & 0 qty records. 3) If there are more than 3 duplicate records ex: ID is 3 and Group is AA, the i have to delete all the records with qty value either 30 or 0 and.
I have written a query like below.
SELECT id, unit, RANK () OVER (PARTITION BY id, unit ORDER BY id, unit) num FROM temp;
with the above query, i am unable to mark this dynamic duplications.