SQL & PL/SQL :: Implicit Cursor In Single Statement?
Feb 7, 20111) SQL Statements are not using IMPLICIT CURSORS.
2) Only the SQL statements of the PLSQL program create implicit cursors.
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SQL & PL/SQL :: Use Implicit Cursor In Program
Aug 18, 2010I've tried to use implicit cursor in my pl/sql program and i get an error as following:
DECLARE
*
ERROR at line 1:
ORA-01422: exact fetch returns more than requested number of rows
ORA-06512: at line 17
Then,I tried to include an exception for it and the error is 'solved'.
DECLARE
d_call_id course.call_id%TYPE;
d_course_name course.course_name%TYPE;
d_term_desc term.term_desc%TYPE ;
d_f_first faculty.f_first%TYPE;
d_f_last faculty.f_last%TYPE;
d_day course_section.c_sec_day%TYPE;
d_time course_section.c_sec_time%TYPE;
d_bldg_code location.bldg_code%TYPE;
d_room location.room%TYPE;
[code]....
By actually the program are suppose to return the records instead or returning the error. I've included the table that i'm trying to retrieve the records from as well.
SQL & PL/SQL :: Does Commit Close Implicit Cursor
Feb 3, 2011We all know that commit will do the following.
1. Save the Txn Permanently to the database.
2. Release the table locks and
3. Erase the save points.
TABLE NAME:
==========
create table TEST_PREC (NO NUMBER(4,2));
DECLARE
BEGIN
INSERT INTO TEST_PREC VALUES (12.34);
DBMS_OUTPUT.PUT_LINE('the no of records before commit '||SQL%ROWCOUNT);
commit; /* What's happening inside commit */
[code]....
why the SQL%ROWCOUNT is set to zero after commit.
Does the commit, close the implicit cursor?
SQL & PL/SQL :: Differences Between Explicit And Implicit Cursor?
Nov 16, 2011what are the main points that these examples are considered cursors? and why are they called explicit and implicit cursor.
explicit
for x in (select * from emp) loop
dbms_output.put_line('emp no: '||x.empno);
end loop;
implicit
select empno
into vEmpno
from empno
where empname = 'SCOTT';
for all we know that these are not clearly defined on the declaration area as cursor.
SQL & PL/SQL :: Difference Between Implicit And Explicit Cursor?
Feb 21, 2013What is the difference between implicit cursor and explicit cursor in PL/SqL?
And what is ref cursor ?
PL/SQL :: Difference Between Explicit And Implicit Cursor?
Nov 5, 2013difference between between these two constructs. Finally when i read the asktom.oracle.com , I was totally confused. The reason is thatTom says...we can retrieve more than one row in implicit cursor. If that would be case, what's the difference between these two cursors?? when to use?? My understanding was implicit cursors" ---> single-row queryExplicit cursors ---> multi-row query Experts
View 10 Replies View RelatedSQL & PL/SQL :: Cursor Select Statement?
Apr 28, 2010I have a cursor in a procedure that selects columns from a table on a remote Oracle database using a database link. It all works fine when the table name and database link name is 'hard coded' into the procedure but what I would like to achieve is have the select statement lookup the table name and database link name from a column in another table. See example below
CURSOR c_total_bookings IS
SELECT personnel_id,
surname,
forenames,
birth_date,
[code]...
What I would like to do is replacecompany_bookings@remote.linkwith a variable that takes its value from another table.
PL/SQL :: Single Select Statement
Apr 22, 2013I am trying to find the best solution for the following problem
I have a table called HIERARCHY with 3 columns.
col1 col2 col3
------------------------
1
1 2
1 2 3
4 5
6 7 8
I would like to check if the table contains invalid records. Col1 , Col2 and Col3 are seen as hierarchy levels and col1 is the top level.
For instance record 1,2,3 (level3) is valid because it exists record 1,2 (level 2). Moreover 1,2 record (level 2) is valid because it exists record 1 (top level).
However 4,5 and 6,7,8 are not valid as higher levels are not completed.
How can I check in a single SELECT statement if the table contains invalid records? Maybe analitical functions or regular expressions?!
SQL & PL/SQL :: Make Cursor To Take Select Statement?
Jul 9, 2012How to make cursor to take a select statement
then check the rowcount
in certain case: assign another selete statement to the cursor
SQL & PL/SQL :: Used Variable In Open Cursor Statement
Mar 1, 2012open cp_cursor for 'Select curtailprogramkey from curtailProgram where curtailprogramid like 'l_rec.curtailprogramid%'';
NOTE: l_rec.curtailprogramid is varible. what is wrong in the above statement?
SQL & PL/SQL :: Open Cursor Statement Getting Stuck?
Apr 18, 2013I would like to mention that I won't be able to give the data,specific information(like query or table names) about the issue as this concerns the privacy of some multinational company(where I work).
We have windows server and we are currently using Oracle 10g.
Issue-
We have a ProC, which has a SQL statement where it is trying to OPEN a cursor. The cursor query is huge and fetches data from 3 tables. 3 tables have 5k, 600k and 1.7 millions records respectively but the 'where' condition in cursor query makes the total count to 3k lines only.
Now the problem is , we have a schedule reboot of the server every Saturday night and the next day(Sunday night) when the program runs it gets stuck in the query --> OPEN <cursor> . We wait for 5 hours but this OPEN cursor query never executes or completes, that means our program gets stuck here.Eventually we have to kill the program.We have tried running it after killing as well but it again gets stuck.
Now the interesting part. On Monday business happens as usual but in the night when we again run this program it runs within minutes. The records in the tables are more or less same. Open cursor does not get stuck at all. It runs every night properly but every Sunday night it gets stuck. note that the program does not run on Saturday nights. So on Sunday night it runs for the first time after server reboot.
So there is something with Open cursor statement(with so much data) after server reboot. What exactly Open cursor does in memory or database.
SQL & PL/SQL :: Cursor In DML Statement Inside A Procedure
Sep 12, 2011I have a DML Statement inside a procedure and i use a cursor variable to get the values checked as below . I have attached my procedure not completely but the declaration part and the DML statement part.
The issue is my procedure is not inserting the records at all. It selects the values and then inserts accoringly but its not selecting because of the cursor reference R_LOC.LOCATION_GID.
when i hard code the value in the DML statemnt for the R_LOC.LOCATION_GID, the rows are inserted as expected. So i guess the way the procedure executes the value is not correct.
Modifying my select part which uses cursor variable R_LOC.LOCATION_GID under Insert statement.
select d.servprov_gid, d.depot_gid, replace(d.appointment_time,'':'') appmt_time, d.'||v_day_to_use||' DayUsed
from tesco_fresh_templates t, tesco_fresh_templates_d d, location_refnum r
where t.set_id= d.set_id
and d.depot_gid=r.location_gid
AND D.SERVPROV_GID=''R_LOC.LOCATION_GID''
and r.location_refnum_qual_gid=''TESCO.IVS SCHEDULING''
and (r.location_refnum_value=''YES'' or r.location_refnum_value=''Y'')
and t.default_set=''Y''
SQL & PL/SQL :: Single Select Statement Instead Of Procedure?
Oct 2, 2010presenting the case as follows:There are two dates with time components like
26-sep-2010 13:00 and 29-sep-2010 19:00
In between these dates hours between 20.00 to 05.00 (night hours)need to be considered and In these night hours less than three hours can be ignored and between 3 to 9 hours should be treated as 1. Need the number of one's in between the dates.
Procedure, cursor solution is not needed and need single select statement.
PL/SQL :: Merge Statement On Single Table
Oct 29, 2012{code{
i want to apply merge stmt on single table.
CREATE TABLE TEST11(TNO NUMBER(5), TVAL VARCHAR2(100), TID VARCHAR2(10));
INSERT INTO TEST11 VALUES(1,'VIJAYA','TEST');
INSERT INTO TEST11 VALUES(2,'VIJAYA','TEST');
INSERT INTO TEST11 VALUES(3,'VIJAYA','TEST');
INSERT INTO TEST11 VALUES(4,'VIJAYA','');
INSERT INTO TEST11 VALUES(5,'VIJAYA','');
[Code]....
My requiremen is if record is exists then i wan to update some value, if record not existes the i wan to insert new record
PL/SQL :: Multiple IF Else Statement In A Single Select?
Oct 17, 2012I want to run multiple IF Else statements in a single select SQL, each statement is one SQL operating on the same table, what is the best way to write this select SQL query ? If it is PL/SQL, when i get the result from the first IF statement I will skip the remaining execution, and so on..
View 9 Replies View RelatedForms :: How To Insert And Update With Single Statement
Mar 5, 2012I would like to insert a value if that value is not existing in the table (example for a column which contains date only new dates should be inserted and if the date already exists in the column then it needs to get updated )
example of scenario...
date s1 s2 s3
in the above if the date is new..it should get inserted with the appropriate slot no.(s1,s2,s3) if the date already exists it needs to update the no.in slot no.
PL/SQL :: PLS-00455 / Cursor CUR_1 Cannot Be Used In Dynamic SQL OPEN Statement
May 10, 2013create or replace package cognos_pk as /* Creates Package Header*/
TYPE project_type IS record( /* A record declaration is used to */
c1 NUMBER /* provide a definition of a record */
); /* that can be used by other variables*/
TYPE project_type1 IS REF CURSOR return project_type; /* Variable declaration */
procedure conosg_sp (result1 out project_type1); /* SP declaration */
end;
[code]....
Update Multiple Rows With Different Values In A Single Statement
Jul 24, 2009Updating multiple ROWS with different values using single statement. Requirement is to update one column in a table with the values in the other table.
Say we have 3 tables, CORPORATION,CORPORATE PROFILE and MEMBER.
Each MEMBER has CORPORATE PROFILE which in turn is associated with CORPORATION. Now I need to update MEMBER table with CORPORATION identifier for members who belong to corporations with identifiers say 'ABC' and 'DEF'.
MEMBER table contains column 'CORPIDENTIFIER '. CORPORATEPROFILE table contains MEMBERID and CORPORATIONID,this will associate a member with the corporation. CORPORATION table contains ID and CORPIDENTIFIER.
Using the below query I am getting error,ORA-01427:single-row subquery returns more than one row
UPDATE MEMBER M SET M.CORPIDENTIFIER=
(SELECT A.IDENTIFIER FROM CORPORATION A,CORPORATEPROFILE B
WHERE B.CORPORATIONID=A.ID AND B.MEMBERID=M.ID AND (A.IDENTIFIER LIKE 'ABC' OR A.IDENTIFIER LIKE 'DEF'))
Sub query in the above query returns multiple rows and hence it is throwing the error.More than one members are associated with Corporations ABC and DEF. Is there any way possible to update all the rows in single query with out iterating the result set of sub query.
SQL & PL/SQL :: Updating Multiple ROWS With Different Values Using Single Statement?
Feb 16, 2011The requirement I have is :
I have two tables eim_asset and eim_asset1.I want to update the table eim_asset1 using the following update SQL (Or Logic)
update eim_asset1
set emp_emp_login = (select login from s_user where row_id in
(select row_id from s_emp_per where row_id in
(select pr_emp_id from s_postn where row_id in
(select position_id from s_accnt_postn where ou_ext_id in
(select row_id from s_org_ext where row_id in
(select owner_accnt_id from s_asset where owner_accnt_id is not null)))))
It gives me the ORA error : ORA-01427:single-row subquery returns more than one row.know why I am getting it, because of the one-to-many relationship between owner accounts and their assets.
SQL & PL/SQL :: Tracking Exception In One Single Block For Three Different Select Statement?
Mar 8, 2010how can i track the exception for three select statement in one pl-sql block. here is synario.......
begin
select * from emp where empno=1234; --statement 1
select * from cusotmers where cust_id=125; --statement 2
select * from products where product_id='a-3'; --statement 3
end;
i want to track exception any one for ex no_data_found for all these three different statement.
I know if i put this three statement in three different pl-sql sublock then i can trap it....
how can i trap it in one single block?
SQL & PL/SQL :: Updating Multiple Rows With Single Update Statement?
Aug 20, 2013create table temp_tst
(
FILENAME VARCHAR2(200),
EDITED_BY VARCHAR2(50),
EDITED_TO VARCHAR2(50)
)
[code]....
Can I write a single update statement to update filename column replacing "_tst" with "_check"?
Implicit Commit While Purging
Oct 24, 2011I have written a purge package that would delete records older than 10 years. Since the data is huge, the purging was taking 14 hours plus. To improve performance, I disabled constraints , deleted records and then reanabled them. This was quite quick but the only problem is rollback. Say for some reason if enabling constraints fails there is no way to rollback as enabling and disabling constraints does an implicit rollback.
View 1 Replies View RelatedAuditing And Implicit Commits
May 11, 2009I'm working on a Java-based web application and we have unit tests that we use to test all our all code that interacts with the database or code that interacts with our DB code. The Spring framework allows us to perform some DML within a transaction before each test and then rollback the changes. For the most part, this works, however when I run the full suite of unit tests, it will randomly commit data to the database causing the rest of the tests to fail.
will Oracle's auditing let me see where this odd-ball commit is occurring? Is there another way for me to see when data is being committed?
This does not appear to be happening on any of the systems we've deployed, however this is a bit unsettling and would like to know why this is occurring so that we can prevent it from happening in production.
Update Statement Versus Cursor Based Update
Sep 7, 2010I have to update 20 and 60 million records of a table. The update statement are
1> 20 million recs
update mycustomer set update_time=add_months(sysdate,240) where seq_num = 1;
commit;
2> 60 million recs
update mycustomer set update_time=sysdate-seq_num where seq_num <> 1;
commit;
Q1> Is there any way to improve performance
Q2> Will parallel dml improve performance
Q2> Would a pl/sql cursor make any difference in speed.
PL/SQL :: Update Multiple Columns With Single Update Statement
May 30, 2013i am reading the columns value from different table but i want to update it with single update statement. such as how to update multiple columns (50 columns) of table with single update statement .. is there any sql statement available i know it how to do with pl/sql.
View 5 Replies View RelatedImplicit Data Conversion / Join Conditions Between Number And Vrahchar2
Jun 17, 2013In my Project, there are many queries have join conditions between Number and Vrahchar2. Will it give any wrong results or Invalid Number exception even the varchar2 column always contains the number data?
Example:
Select * from Table_t1 t1, table_t2 t2
where t1.num_col = t2.var_col
-- Here var_col always hold only numaric data.
SQL & PL/SQL :: How To Insert Single Quote In Insert Statement
Feb 24, 2012INSERT INTO LKP_ASSET_LOCATION (LOCATION) VALUES ('AMERICA'S CUP VILLAGE')
View 2 Replies View RelatedPrecompilers, OCI & OCCI :: Error Implicit Conversion Of String Literal To (char) Is Deprecated?
Jan 30, 2011i write a select statement in proc that contains 44 columns.
when i precompile it. it is showing the error: implicit conversion of string literal to "char *" is deprecated.when i compile the same select with 40 columns it is not showing any error.
but for more than 40 columns (41-44) it is showing the above error.
RMAN :: RMAN-03014 / Implicit Resync Of Recovery Catalog Failed
May 29, 2013My oracle backup via Netbackup failing with error 6 (Netbackup) and i have checked the logs please find the RMAN log file as well.
Script /opt/rman_script/st72_oracle_full.sh
==== started on Tue May 28 15:27:46 SGT 2013 ====
RMAN: /OraBase/V10203/bin/rman
ORACLE_SID: ST72
ORACLE_USER: oracle
ORACLE_HOME: /OraBase/V10203
NB_ORA_FULL: 1
NB_ORA_INCR: 0
[code]....
Precompilers, OCI & OCCI :: Pro*C - Cursor Leak With Cursor Array
Sep 7, 2007I'm dealing with an ORA-1000 error in a Pro*C application where all the cursors are correctly closed (or so it seems to me).
Here is the code for a simple program which reproduces the problem:
Each cursor is opened in a PL/SQL package:
CREATE OR REPLACE PACKAGE emp_demo_pkg AS
TYPE emp_cur_type IS REF CURSOR;
PROCEDURE open_cur(curs IN OUT emp_cur_type, dept_num IN NUMBER);
END emp_demo_pkg;
[Code]....
While testing the initialization parameter open_cursors is set to 50.
It's my understanding that Oracle doesn't close the cursors until it needs the space for another cursor, which in my test case seems to happen when I enter a value of 50 or bigger for "number of loops". To see how oracle is reusing the cursors, while the test program is running I run SQL*Plus and query v$sesstat for the session that's running the test with the following sentence:
select name, value
from v$sesstat s, v$statname n
where s.statistic# = n.statistic#
and sid = 7
and name like '%cursor%';
Even before I enter a value for number of loops I can see that the session opened 4 cursors and closed 2 of them:
NAME VALUE
---------------------------------------------------------------- ----------
opened cursors cumulative 4
opened cursors current 2
Entering a value of 5 for number of loops yields
NAME VALUE
---------------------------------------------------------------- ----------
opened cursors cumulative 11 <----- 7+
opened cursors current 8 <----- 6+
With a value of 30
NAME VALUE
---------------------------------------------------------------- ----------
opened cursors cumulative 36 <----- 25+ (apparently, Oracle reused at least 5 cursors)
opened cursors current 33 <----- 25+
With a value of 47
NAME VALUE
---------------------------------------------------------------- ----------
opened cursors cumulative 53 <----- 17+
opened cursors current 50 <----- 17+
Now I reached the upper limit set by the initialization parameter open_cursors.
Entering a value of 48, I get the ORA-1000 error.
ORA-01000: maximum open cursors exceeded
ORA-06512: at "SCOTT.EMP_DEMO
Since I open and close the cursor in the same loop iteration, I expect to find in every iterarion 1 explicit cursor and a number of implicit cursors (the PL/SQL call along with the so-called recursive cursors), but I don't expect the sum of all of them to be greater than 50. If my understanding is correct Oracle should be reusing the 50 cursors previously marked as "closeable", not raising the ORA-1000 error.
