SQL & PL/SQL :: Use Sequence In Prepared Statement?
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.
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;
DECLARE v_seq_num NUMBER; BEGIN SELECT SEQ_ID.NEXTVAL INTO v_seq_num FROM DUAL; INSERT INTO TABLEA (COL1, COL2) VALUES (v_seq_num, 'test'); INSERT INTO TABLEB (COL3) VALUES (v_seq_num); END;
-- Option2 - Using sequence.NEXTVAL in INSERT USING RETURNING INTO clause
DECLARE v_seq_num NUMBER; BEGIN INSERT INTO TABLEA (COL1, COL2) VALUES (SEQ_ID.NEXTVAL, 'test') RETURNING COL1 INTO v_seq_num; INSERT INTO TABLEB (COL3) VALUES (v_seq_num); END;
I want increase speed of importing data using ttisql. My script contains about 12k simular MERGEs. Can I prepare this state,ent once and later substitute params from script?
I am trying to fetch the data from system table "FLOWS_020100.WWV_FLOW_ACTIVITY_LOG1$" in Oracle Express edition 10.2.0.3 database, using the OCI library on Windows with C++
This table has a TIMESTAMP column of date type.
I've the following query as below:
select TIME_STAMP from FLOWS_020100.WWV_FLOW_ACTIVITY_LOG1$ where TIME_STAMP > to_date('31/OCT/12 23:59:59', 'DD-MON-YY HH24:MI:SS') order by TIME_STAMP asc;
For this, first I am preparing the query as below:
select TIME_STAMP from FLOWS_020100.WWV_FLOW_ACTIVITY_LOG1$ where TIME_STAMP > :PKVAL order by TIME_STAMP asc;
Before calling OCIExecute(), I am setting the PKVAL buffer to following value:
HOW to use variable P_TMPLID in following statement
TYPE typ_unrecon IS TABLE OF REC_' || P_TMPLID ||'_UNRECON%ROWTYPE index by binary_integer;
because its throwing error while compiling
and also in statement FORALL i IN unrecondata.FIRST .. unrecondata.LAST SAVE EXCEPTIONS --STRSQL := ''; --STRSQL := ' INSERT INTO REC_' || P_TMPLID ||'_UNRECON VALUES ' || unrecondata(i); -- EXECUTE IMMEDIATE STRSQL; INSERT INTO REC_' || P_TMPLID ||'_UNRECON VALUES unrecondata(i);---throwing error on this statement commit; --dbms_output.put_line(unrecondata(2).TRANSID); EXCEPTION
In the following merge statement in the USINg clause...I am using a select stament of one schema WEDB.But that same select statement should take data from 30 schemeas and then check the condition below condition
ON(source.DNO = target.DNO AND source.BNO=target.BNO);
I thought that using UNIONALL for select statement of the schemas as below.
I am using JDBC to run a few queries from my Java program (multi-threaded one).I am facing an issue where a select statement is blocking a delete statement. From the java code point of view, there are 2 different threads accessing the same tables (whith different DB connection objects).
When the block occurs (which i was able to find out from the java thread dump that there is a lock on oracle), the below is the output:
SQL> SELECT TO_CHAR(sysdate, 'DD-MON-YYYY HH24:MI:SS') 2 || ' User '||s1.username || '@' || s1.machine 3 || ' ( SID= ' || s1.sid || ' ) with the statement: ' || sqlt2.sql_text ||' is blocking the SQL statement on '|| s2.username || '@' 4 5 || s2.machine || ' ( SID=' || s2.sid || ' ) blocked SQL -> ' 6 ||sqlt1.sql_text AS blocking_status FROM v$lock l1, v$session s1, v$lock l2 , 7 v$session s2,v$sql sqlt1, v$sql sqlt2 8 WHERE s1.sid =l1.sid 9 AND s2.sid =l2.sid AND sqlt1.sql_id= s2.sql_id AND sqlt2.sql_id= s1.prev_sql_id AND l1.BLOCK =1 10 AND l2.request > 0 AND l1.id1 = l2.id1 AND l2.id2 = l2.id2; [code]...
From the above it can be seen that a select statement is blocking a delete. Unless the select is select for Update, it should not block other statements is not it ?
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.
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),
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.
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:
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.
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.
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 .
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'
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:
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"
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'
