SQL & PL/SQL :: Sequence Skips First Value?
Jul 23, 2010
For some reason Oracle Sequence is skipping the first value. Here is an example of script.
drop sequence tseq;
drop table xyz;
create table xyz
(sno integer);
create sequence tseq
start with 1;
insert into xyz values (tseq.nextval);
select * from xyz;
Now the runtime of the script in SQL Developer:
drop sequence tseq succeeded.
drop table xyz succeeded.
create table succeeded.
create sequence succeeded.
1 rows inserted
SNO
----------------------
2
Why is it skipping the starting value 1. Is there something new in 11g that is causing it to skip the first value. I have many scripts and they all are having errors due to this issue.
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Nov 15, 2013
I have Oracle 11g database home in my 64 bit Windows 7 machine. However, now i would like to install Oracle 10.2.0 client as well. I tried giving a separate location.
But for some reason, whenever i start the Setup and run the Administrator Type, the installation just skips without giving any errors. It just creates the inventory folder in the specified path. It goes to the Product-Specific Prerequisite Checks and exits without giving any warnings or errors.
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Jul 24, 2010
How do I get a query of each sequence and who has the permissions to it?
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Jun 1, 2009
I have created a trigger for after insert which updates a table when there is a row inserted in that table. The update is on a column which stores the application description along with the sequence number. Now my requirement is that sequence number should be unique only with in an application but not with in the table.Say the row entry can be as follows:
App_Desc Request_ID
-----------------------
DEV 100 1
DEV 101 2
STG 100 3
STG 101 4
Here Request_ID is unique But the sequqnce thats created for DEV (100,101) should take an entry of 102 for the next entry for DEV and same applies for STG. So I have to use the same sequqnce for all the application.
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Apr 16, 2007
I have 3 tables whose structure is as follows:
1) Invoice
Invoice_no number(8),
Debtor varchar2(35),
Invoice Date Date,
Print Date Date,
Currency varchar2(3),
Total Amount Ex Number(11,2),
Total Amount Vat Number(11,2),
Total Amount Number(11,2),
Status Varchar2(15),
2) Invoice Line
Invoice_no number(8),
Invoice_Line_No number(8),
Description_1 varchar2(35),
Description_2 varchar2(35),
Line_Quantity Number(11,2),
Currency varchar2(3),
Line_Amount Number(11,2),
Vat Code number(1),
Status Varchar2(15),
3) vat code
vat code number(1),
Description varchar2(35),
Vat Percentage number(11,2)
Here invoice no and invoice line no are automatically generated fields?
How to generate invoice line no corresponding to invoice no and how to satisfy the following conditions:
1) total vat amount in invoice table should be automatically filled . total vat amount=(line_quantity* line_amount*vat percentage)/100
2) invoice cannot be printed, changed when status is 'closed'.
3) invoice lines cannot be added,changed or removed when status of invoice is closed
4) when any of invoice line no is changed,added, removed or invoice is changed the status of invoice should be changed to 'new'.
5) invoice date of a new invoice cannot be of the past
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Oct 10, 2012
Are there any recommendations or good practices to set sequence CACHE parameter (for example one caching per hour, day etc)?
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Sep 11, 2010
Create a sequence E_SQ which start with the (current max empno + 1) and increment by 1.
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May 4, 2010
is there any way to alter only max value in sequence without specifying the max value.
i know we can alter it like :
-- Alter sequence
alter sequence TEST_SEQ
maxvalue 99999999;
can we alter it without providing the max value and let oracle choose default value for the same, same as we can do it when creating a new sequence.
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Mar 19, 2012
As we can give grant on sequence and can use in different schema of same database, can same sequence be used across databases?
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Nov 1, 2007
After you've created a sequence in sql plus is there anyway of viewing the contents of the sequence and what it does?
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Jul 25, 2011
We Require to Change the Sequence Next Value.
If it possible to Update the Sequence Next Value in Oracle.
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Dec 27, 2010
The below trigger is running fine without any error ,but i wasn't able to perform the exact logic by the below trigger.IF, inserting multiple row then the SIVNUM field gets the same sequence number for each row , without incrementing the value for the next row.
Only the sequence value increases on the next set of row ow's inserted
Example (inserting 2 rows ) based on the below trigger:
item , refwo , sivnum
1234 , 55555 , 00001
6352 , 77777 , 00002
i want to achieve :
item , refwo , sivnum
1234 , 55555 , 00001
6352 , 77777 , 00001
CREATE OR REPLACE TRIGGER siv_mat_insert
BEFORE INSERT
ON MATUSETRANS
REFERENCING OLD AS old NEW AS new
for each row
[code]....
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May 29, 2012
I have round about 100 sequences in a schema. How can i identify that which sequences are not used for a long time. Or How can i identify the last date when that sequence is used.
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Sep 17, 2012
In our production, we have two nodes in the cluster. We use the sequence for one of the main table for primary key. Our application is expecting sequence number increments along with created date time stamp. Right now sequences are cached for each node and it creates problem for the application. We would not like to use NOCACHE option because it causes performance issue.
This is the current scenario -
Transaction #1 on Node 1 - Seq ID 1 - Time Stamp 12:01
Transaction #2 on Node 2 - Seq ID 51 - Time Stamp 12:02
Transaction #3 on Node 1 - Seq ID 2 - Time Stamp 12:03
When I try to query based on the time stamp, primary should also go up. To be very clear on what I would like to have, please consider the following example.Without using NOCACHE option, I need to have the data in the following order.
Transaction #1 on Node 1 - Seq ID 1 - Time Stamp 12:01
Transaction #2 on Node 2 - Seq ID 2 - Time Stamp 12:02
Transaction #3 on Node 1 - Seq ID 3 - Time Stamp 12:03
In other words, sequence number should always increment along with the time.
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May 13, 2011
i have create one sequece using this syntax
CREATE SEQUENCE seq_emp_id START WITH 100;
after that when i create a table using this syntax
CREATE TABLE employee
(
emp_id integer default NEXTVAL ('seq_emp_id'),
name text
);
i got an error like this
*
ERROR at line 2:
ORA-04044: procedure, function, package, or type is not allowed here
so how can i resolve my this error
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Oct 22, 2012
I have Created sequence in oracle 10G and its working fine. its showing THE NUMBER IS 2
SQL> DECLARE NUM NUMBER;
2 BEGIN
3 select SERIAL_NO.NEXTVAL into num from dual;
4 DBMS_OUTPUT.PUT_LINE('THE NUMBER IS ' ||NUM);
5 END;
6 /
THE NUMBER IS 2
PL/SQL procedure successfully completed.When i execute this code in oracle 11G then it does not show output.
SQL> DECLARE NUM NUMBER;
2 BEGIN
3 NUM :=SERIAL_NO.NEXTVAL;
4 DBMS_OUTPUT.PUT_LINE('THE NUMBER IS ' ||NUM);
5 END;
6 /
PL/SQL procedure successfully completed. SQL> Why this is not showing output as THE NUMBER IS .
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Jun 10, 2011
I created a Table with a single column varchar2.. in which I wanted to insert value like 'BBBBAB1'... till 'BBBBAB100'
Created a sequence starting with 1...
and inserted single row, and multiple rows using loop also; by using below code -
insert into Trans SELECT CONCAT('BBBBAB', Trans1.NEXTVAL) from dual;
but whenever I see the values they are not as required ... 'BBBBAB1' but one character 'B' is missing, and the values populating are 'BBBAB1'.. 'BBBAB100'
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Dec 1, 2012
I have a table called "Subjects" which lists subjects to match with notations in another table I have created a simple sequence (CREATE sequence subjectid) to created the subject id for the table. But I notice that if there is a skip in the date, the sequence increments automatically when I am not even using it. It even appears to be incrementing even when I am not doing any database activity.
This is not an issue of data integrity, because the values in the subject_id column do not need to be sequential, they just need to be unique. But it really has me curious. I created another table called "keep_track" to keep track of what is happening:
16-NOV-12 2952
16-NOV-12 2953
16-NOV-12 2954
16-NOV-12 2955
16-NOV-12 2956
16-NOV-12 2957
16-NOV-12 2958
16-NOV-12 2959
16-NOV-12 2960
16-NOV-12 2961
16-NOV-12 2962
[Code] ......
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Oct 11, 2011
Can we use the sequence.nextval,sequence.currval inside case block.
CREATE TABLE EQUALITY_TEST(NUM1 NUMBER, NUM2 NUMBER, SEQ NUMBER);
INSERT INTO EQUALITY_TEST VALUES ( 2 ,0 , NULL);
INSERT INTO EQUALITY_TEST VALUES ( 2 ,2 , NULL);
INSERT INTO EQUALITY_TEST VALUES ( 2 ,2 , NULL);
INSERT INTO EQUALITY_TEST VALUES ( 12 ,2 , NULL);
INSERT INTO EQUALITY_TEST VALUES ( 12 ,12 , NULL);
INSERT INTO EQUALITY_TEST VALUES ( 12 ,12 , NULL);
CREATE SEQUENCE SEQ_TEMP START WITH 100 INCREMENT BY 1;
Now i need to update SEQ column with SEQ_TEMP sequence. When NUM1,NUM2 values are unequal sequence should be incremented otherwise need to use the same sequence number(CURRVAL)
I have tried like this
UPDATE EQUALITY_TEST
SET SEQ=
CASE WHEN NUM1=NUM2
THEN SEQ_TEMP.NEXTVAL
ELSE
SEQ_TEMP.CURRVAL
END ;
SELECT * FROM EQUALITY_TEST;
Output
NUM1NUM2SEQ
120100
222101
322102
4122103
51212104
61212105
But Required Output
NUM1NUM2SEQ
120100
222100
322100
4122101
51212101
61212101
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Jun 30, 2010
I'm having some difficulty getting a simple SQL statement to work. It uses bind variables, but has a problem when I introduce a sequence:
INSERT INTO AE_MASTER.STAGE_USAGE (STAGE_USAGE_ID, ANIMAL_USAGE_ID_FK) VALUES (AE_MASTER.AE_GENERIC_SEQ.NEXTVAL, :dummy)
==> ORA-00942: table or view does not exist
But if I remove the sequence, it works:
INSERT INTO AE_MASTER.STAGE_USAGE (STAGE_USAGE_ID, ANIMAL_USAGE_ID_FK) VALUES (1, :dummy)
==> Success
So you might think there is a problem with the sequence, but if I use a name that doesn't exist, it tells me so:
INSERT INTO AE_MASTER.STAGE_USAGE (STAGE_USAGE_ID, ANIMAL_USAGE_ID_FK) VALUES (xxxAE_MASTER.AE_GENERIC_SEQ.NEXTVAL, :dummy)
==> ORA-02289: sequence does not exist
So I'm a bit stumped as to why it's not working! Is it not possible to use sequences with bind variables?
In the past I have gotten around this by using a SELECT statement to get the sequence number then following it with the INSERT statement, but this time I'd really like to get it all done in the same statement if possible.
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Mar 2, 2013
I have a following select statement where I am not generating a sequence in any of these WHERE clause, GROUP BY or ORDER BY clause, DISTINCT clause, along with a UNION or INTERSECT or MINUS or sub-query.
I have query like this
"SELECT
AER_ID_TEMP.AER_ID,
AER_ID_TEMP.D__PRNO,
AER_ID_TEMP.D__PCNT,
CAST((select char_value from aris_param_data where param_id = 101)||seq_record_id.nextval AS INT) as RECORD_ID
FROM AER_ID_TEMP"
but still encountering a error "ORA-02287 sequence number not allowed"
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Apr 12, 2013
i would like to create a sequence inside a dml trigger. Is it possible? I created a trigger and it is compiled sucessfully.
create or replace trigger tri_update_test
after delete on test
declare
pragma autonomous_transaction;
[code]...
trigger created sucessfully.And i try to delete data from the test
delete from test where id=5;
Output:
ERROR at line 1:
ORA-01031: insufficient privileges
ORA-06512: at "SCOTT.TRI_UPDATE_TEST", line 4
ORA-04088: error during execution of trigger 'SCOTT.TRI_UPDATE_TEST'
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Jul 3, 2012
I have a sequence named as emp_seq.
CREATE SEQUENCE EMP_SEQ
START WITH 1
MAXVALUE 99
MINVALUE 1
NOCYCLE
NOCACHE
NOORDER;
Now I want to view the source code of it after creating it. Is there any data dictionary available to see it.
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Dec 16, 2011
I want to group the following records and mark them in a sequence order.
drop table test;
CREATE TABLE TEST
(
key0 NUMBER,
key1 VARCHAR2(1),
key2 NUMBER)
;
INSERT INTO TEST VALUES (4,'A',1);
INSERT INTO TEST VALUES (4,'A',2);
[code]......
key0 key1 key2
4A1
4A2
4A3
4A4
3A1
3A2
3A3
1A1
1A1
Now I want the records in the following way, where group_no would be in sequence when key2 starts with 1 again.
key0 key1 key2 group_no
4A1 1
4A2 1
4A3 1
4A4 1
3A1 2
3A2 2
3A3 2
1A1 3
1A1 4
Can I achieve this using SQL only and not by PL/SQL.
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Aug 27, 2010
I created a stored procedure(A) in user1@db1. This stored procedure will insert data from db1 to tables in user2@db2 using synonyms created in user1@db1 referencing table at user2@db2.
In the stored procedure (A),
insert into synonym select seq_xx.nextval from table@db1;
Then I will execute (A) in user2@db1. Execute right on (A) is given to user2@db1.Select and insert grants on db2 tables are given to user1@db1. Seq is created in db1. Compilation is successful, however when i execute (A) it has an error of
ORA-02289: sequence does not exist
ORA-02063: preceding line from db1
ORA-02063: preceding 2 lines from db2
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Dec 4, 2012
I m little bit confuse about the MAX VALUE of SEQUENCE. By default it takes max values as 99999999999999999. Will it really effect our database ?
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Apr 9, 2012
Is it possible to insert new id without sequence id.
For e.g. :
1 , 'BOLT'
2 , 'CHAIN'
i need to insert 3rd and 4th row as
3 , 'screw'
4 , 'driver'
without using sequence (autonumber gen).
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Sep 26, 2010
In oracle is it possible to find if a sequence was reset? I know my sequence was reset, looking at the nextval of my sequence, but is there an oracle log or anything which proves that sequence was reset ?
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Dec 7, 2011
how to create sequence to varchar and how see that sequence
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Jan 31, 2013
I'd like to have a conditional that only gets the next value from a sequence is the current (or supplied) value is null.
Here are some trivial examples:
CREATE SEQUENCE ts
MINVALUE 1
START WITH 1
INCREMENT BY 1;
SELECT ts.NEXTVAL FROM DUAL;
SELECT COALESCE(ts.CURRVAL, ts.NEXTVAL) FROM DUAL;
SELECT NVL(ts.CURRVAL, ts.NEXTVAL) FROM DUAL;
SELECT CASE
WHEN ts.CURRVAL IS NOT NULL THEN ts.CURRVAL
ELSE ts.NEXTVAL
END
FROM DUAL;
Ideally multiple executions of any of these (or a better one of your design) should return the same value from the sequence, but mine do not.
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