I am having a table with out a primary key .It also contains data.
My requirement is to add a new column to the table and update the column value with unique and sequential number , starting from 1 to end of rows.
This has to be done without using a sequence.
i am having a table with out pk along with data.
Now , i need to add one column to that table , and update this column with the sequence no
like 1,2,3...... upto the max no of records. but i have to do this with out using a sequence.
how can i do.
I have something upcoming task which include a merger of two database instances. The schema structure is exactly same and there is no duplicity problem. I want to dump the both schema data in one instance. The only challenge i have here is "How to manage the sequences?".
Explanation: Instance A.
Sequence : 1,2,3,4,....20
Instance B
Sequence: 1,2,3,4....20
Requirement : when i merge it should be
Instance C: 1,2,3,4...20 [from Instance A ] cont.. 21,22,23,24.....40 [From Instance B]
We have a requirement to install a new application into a 2 node RAC database.
Going over the installation scripts, I noticed that there is a requirement to use sequences, which immediately set the alarms ringing - I know that using sequences with RAC may cause issues (esp as the script is set to cache 500 values at a time).
The way we are planning to implement this application is by channeling the application through a service that is preferred on one node. The second node will be set to available for the service. The database will ONLY be used for this application.
Will this be enough to get round this situation? Or will the second node still try and cache sequence numbers?
I have created a Sequence called testseq. Its working fine since last 1 week. Suddenly no one sequences will not create nextvalue. after executing nextval its return null row.
View 2 Replies View Relatedi had a requirement to generate unique numbers without sequences.
For Example: i had a table called "Test".Test has two columns.
ID and Name are 2 column names.Primary key constraint exists on column(ID).
How to generate the ID values without using sequence and Stored procedures.
I have a temp table and want to insert that data into 2 tables. In both of my tables i have a sequence column but in my second table its a foreign key to the main table
up_query="INSERT INTO AFFILIATE (FNAME,LNAME,EMAIL,PHONE,ORG,ADDRESS1,ADDRESS2,COUNTY_ID,AFF_ID)
Select a.FNAME, a.LNAME,a.EMAIL,a.PHONE, a.ORG, a.ADDRESS1, a.ADDRESS2,C.COUNTY_ID,'AF'||aff_seq.nextval
FROM temp_aff A LEFT OUTER JOIN COUNTY C
ON UPPER(A.COUNTY)=C.CNAME";
$up_query2= "INSERT INTO TEST4 (DEPT_ID,CAMP_ID,AFF_ID, PASSWD)
SELECT D.DEPT_ID,C.CAMP_ID,aff_seq.currval,'Zq'||dbms_random.string('A',4)||'$8' from dual,TEMP_AFF A
left outer join DEPT D ON (UPPER(A.DEPT)=UPPER(D.DNAME))
left outer join CAMPUS C ON (UPPER(A.CAMPUS)=UPPER(C.CPNAME))";
However in my test4 table its inserting the aff_seq.currval for all records. Its not incrementing as in the affiliate table.
I was wondering how can I do below statement in oracle
update table1 t1 set t1.column1 = t2.column2
from table2 t2 inner join table3 t3 on t3.column3=t2.column4
where t3.column5 is null
I tried read up merge and update, but not really understand how the syntax works in oracle.
I have a table ITEM as under;
ARTICLE VRTCODENAMESTATUSNEW_NAME
4KABAN.NM.12.21121143SU19I
4KABAN.NM.12.21564101SU23I
4KABAN.NM.24,5.22491015SR08I
4KABAN.NM.24,5.23181038SR22I
4KABAN.NM.24,5.23491015SR08I
4KABAN.NM.24,5.24121161SR26I
how to update the filed from NAME to NEW_NAME, I need following output.
ARTICLE VRTCODENAMESTATUSNEW_NAME
4KABAN.NM.12.21121143SU19ISU19
4KABAN.NM.12.21564101SU23ISU23
4KABAN.NM.24,5.22491015SR08ISR08
4KABAN.NM.24,5.23181038SR22ISR22
4KABAN.NM.24,5.23491015SR08ISR08
4KABAN.NM.24,5.24121161SR26ISR26
updating the column values.
Test data:
CREATE TABLE test_at(nr_a NUMBER, nr_id NUMBER) TABLESPACE ECLP_DATA01
INSERT INTO test_att VALUES(90270091,NULL);
INSERT INTO test_att VALUES(90270091,NULL);
[Code].....
I need to update "nr_id" column of test_at table with the values from test_d table. They can be udpated in any order.
I tried to update using rownum but it failed with "single row subquery returns more than 1 row...."
i have creatd view,in which i need to show the entry of year in column wise,though the data is in row /record wise.By iteration i can manipulate the year in decode function like " (DECODE(a.Year,(select distinct max(year)-1 from BI_BALANCE_SHEET), a.Balance))",but is there any way to chachge the alias name /column name,here is the query
select
SUM(DECODE(a.Year,(select distinct max(year)-1 from BI_BALANCE_SHEET), a.Balance)) as year2010,
SUM(DECODE(a.Year,(select distinct max(year)from BI_BALANCE_SHEET) , a.Balance))as Year2011
from DEMO a
While updating a table, is it possible to get the old value of a column. I need to get it inside a PLSQL block and not in a trigger.for example :-
DECLARE
l_amountNUMBER(5) := 0;
BEGIN
UPDATECustTransactions
SETamount = 150
WHEREcust_id = 5412
RETURNING amount INTO l_amount;
DBMS_OUTPUT.PUT_LINE ( 'l_amount= ' || l_amount );
END;
By using the RETURNING clause i am getting the new updated value. I need the old value for some processing. Do i have to explicitly query it before the update stmt? Pls reply.
There is a need for me to UPDATE a DATE column from one date to another. So as an example,
we have TABLE A and Table A has a column (DATE_TO) with date field value off
DATE_TO
31-DEC-99
12-APR-15
15-MAR-16
What I want to do is update '31-DEC-99' to '31-MAR-13' and for it to only effect '31-DEC-99' (the others are fine).
HOW TO STOP THE UPDATE IN PK COLUMN?
View 3 Replies View RelatedI need to update a column with tab delimited ie that column value should be tab delimited. Eg:- Url_name is the column and column values =[URL]. THe space between [URL] should be tab delimited. I wanted to use a update query to update this values with tab delimited.
View 2 Replies View RelatedDoes "Update on a Partitioned Column" cause fragmentation ?
See example below :
Suppose I have a table as below that has approx 3 million rows and growing :
1) Table ABC :
file_id number
status_flag varchar2(1)
file_Content clob
date_created date
2) This table is list partitioned on Column "status_flag".
Column "status_flag" can take 3 values "A" or "B" or "C"
3) A file_id can transition from 1 "Status_flag" to another. [ A--> B , C--> B, B-->C, A --> C, etc ]
This means its possible to UPDATE the "status_flag " - the partitioned column.
Question :
-------------
1) Would the movement of rows from 1 partition to another cause fragmentation ?
2) Or Instead, should this be achieved by maintaining 3 tables - 1 each for every "status_Flag" as Table_A, Table_B, Table_C
This would mean that, if file_id 1, changes "status_flag" from 'A' to 'B' :
-- The corresponding row from Table_A will be created in Table_B
--- The same will be deleted from Table_A
This would still cause fragmentation ... with the overhead of Inserting a CLOB column from 1 table to another.
3) How to determine how much percent of the table is fragmented ?
my need is to perform merge - update when id column is matched, but one of others columns not.When id column is not matched then I perform insert.
It works fine for matched or not matched id column.
Commented code is my try to perform check for others columns, The code should not update when all columns match. It should update only when on of columns doesn't match (except id column of course, because it's key column).
begin
merge into copy.table1 rr
using
(
select
ID ,
DEALID ,
ESTIMATIONDATE ,
BOUNDOVERESTIMATDATE ,
ESTIMATIONTYPEID ,
MARKETAMOUNT ,
LIQUIDATINGAMOUNT ,
[code]....
I am encountering an error message while updating a xmltype column using dynamic sql statement. I am using dynamic sql here as the table is not placed in the same schema from where the plsql procedure is invoked. The schema name is passed to the procedure as an argument. I am using below pseudo code for this purpose.
Create procedure myproc(p_schemaname varchar2, p_id number)
is
p_clob clob;
p_str varchar2(2000);
begin
[code]...
This is throwing an error 'missing expression' at the line of 'exeute immediate'.
But it works if I run a static sql update by hard coding the schema name in the statement.
How to update a CLOB column in a table, suppose the string is greater than 4000 size.
View 7 Replies View RelatedCREATE TABLE TEST
(
NAME VARCHAR2(1000 BYTE),
ID NUMBER
)
[Code]...
I want the update the TEST table with TEST1 based on id column,i tried as like.it's not working..
UPDATE test t1
SET t1.ID = ( select ID from test1 t2
where t1.name = t2.email and rownum=1 )
i have a table in my PD database which have more than 30,000 records .some records in a column say p_code is not tagged with code like '9876543'while other records are tagged in this column with code such as '19022345678'.
Now i want to update these records with tagging 1902 with each one .
I have to conditionally update a set of columns in a table. If the column status_code_stage_3 IS NULL THEN I have to update the column status_code_stage_2. The below query is giving error:-
Test Table create scripts
CREATE TABLE test11( date_stage_3 date, reason_code_stage_3 varchar2(20),
reason_code_stage_2 varchar2(20), opportunity_date date )
INSERT INTO test11 values(sysdate,'reason1',NULL,sysdate)
INSERT INTO test11 values(sysdate,NULL,'reason2',sysdate)
[code]....
how to work out the update statement to use the conditional statement for columns.
I have a table PR in that some data is there for instance, My Mr_NO was Char(11) I modify MR_No to Char(13)My Table Structure now is:
MR_No Char(13),
Mr_Date Date
My Previous data is MR_NO=APN00209085
I want to add two 00 after alter the table I want my result data like APN0000209085.I am updating through this command
update PR set Substr(MR_No,4,2)='00'
ERROR at line 1: ORA-00927: missing equal sign
Result I want is APN0000209085
i need a query for update..the logic is
i have to update a single column(x.c) in x table.here the condition is x.a is not null and x.b is not null x.d is null then update x.c=x.b for each row.
I have a scenario where I need to update field in report_input table.It has bind variables in it which will be prompted while running the query.I see that QUERY_VALUE field that need to be updated has length of VARCHAR2(3000).
desc report_input
Name Null Type
----------------- -------- --------------
QUERY_NAME NOT NULL VARCHAR2(64)
QUERY_VALUE NOT NULL VARCHAR2(3000)
[code]....
create table test_table(
rn varchar2(10),
col1 varchar2(10),
col2 varchar2(10),
[code]...
I want update col1 whis is null to max(col1) ++ in a row, order by cr_date like
1,1,20110102
2,2,20110101
3,null,20110105 => 3,5,20110105 because this row is after 20110103
4,3,20110104
5,null,20110103 => 5,4,20110103 because this row is before 20110105
update test_table
set col1 = (select max(col1) from test_table) + rownum
where col1 is null;
this gives ora-00933
I am trying to update a column based on another column in the same table (student table) and a column from another table (school table)
Code is:
update student_table
set student_code =
(select l.student_code
from school_table l, student_table n
where l.school = n.schoolname)
I get the following error ORA - 01427 Single-row subquery returns more than one row.
is it possible to update a same column name in two tables.
I have two tables in same schema
(1)table name
pem.igp_parent
column name
igp_no.
igp_type
(2)table name
pem.igp_child
column name
igp_no.
igp_type
i want to update igp_no column in one query, how it would be possible.
I have a table in which three field.
1)empid (Save employee code)
2)attendace_time (Save Date and inout time)
3)status. (Save in out Status).
I generate new form. which have four field.
1)empid
2)attendance_date base on attendance_time 3
3)Attendace_time base on attendance_time
4)Status .
Problem is that when i update the Attendace_time . date save first date of the month. when i update the attendance_date time save 12:00
I have a table like:
0035987850 P
0035987851 P
0035987852 P
I would like to update removing 00 in the first column. So after update to have:
35987850 P
35987851 P
35987852 P