I am doing simple project, where i need to check date(form which we give in run time) with database column date.problem i have written the code for program now i found that select statement is return multi rows.
create table myex(qid number, lid number, myname varchar2(20), status varchar2(30)); insert into myex values(1,1,'uu',null); commit; CREATE OR REPLACE PACKAGE mypack IS PROCEDURE p_get (in_qid myex.qid%TYPE, out_mycur OUT SYS_REFCURSOR); end mypack; /
[code].....
Note the one record in the table does not satisfy the cursor query criteria, So I try to pass in 1 to see what happens.
In sqlplus: var out_mycur refcursor; begin mypack.p_get(1,:out_mycur); end; / print out_mycur;
I have a stored procedure that does a "select name into v_name" SQL statement, which works fine. The only problem is when the query finds no data (the procedure will error because there is no value to put into the variable). Now i have a work around to this by running the query first with a count statement (which will always have results) and then if it is not equal to 0, then i will run the select into.
My question is, is there a better way to handle this kind of issue?
Yesterday i got wait event when executed simple select from table.This select was like:
SELECT emp_number from employer where subs_id = 111
I got one row, select is very fast.In our Core Bank System we have package with function which returns such information. I tested this select on test DB, and nothing wrong. But when I executed such select and package on Production DB, DB Admin saw that 88 sessions waits when my session release the resource. But what can happen, it was simple select? I used PL/SQL developer to get information from table:
1) SELECT emp_number from employer where subs_id = 111 then 2) Package with this function
Another users used Oracle Forms screen to execute package. How simple select statement could stop all DB?
BANNER 1Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bi 2PL/SQL Release 10.2.0.5.0 - Production 3CORE 10.2.0.5.0 Production 4TNS for 64-bit Windows: Version 10.2.0.5.0 - Production 5NLSRTL Version 10.2.0.5.0 - Production [code]...
Forgot to say that after succeful execution on Prod DB I disconnected, and in EM my session was INACTIVE.
I have a problem that i have hard coded the username.tablename in each select statement of all forms of my application. Now i want to use a dynamic variable in place of username in each select statement throughout the application. The example is:
select * from scott.emp and i want to write it as: select * from variable.emp
But at compilation of the form the compiler should know the above variable name.
I have tried to use following select statement but it does not work.
select user into :global.username from user_users
I think perhaps my problem would be solved with Dynamic SQL Statement but i have no experience by using this statement.
explain slow performance of multicolumn indexes on oracle 11g R2 observed in the following scenario? A multi-column index (b-tree index) not partitioned, not unique, not reversed with 3 columns.
A series of queries are run using all 3 columns. The performance hit comes when the first order column values changes. So, maybe after 10 select queries the value changes. The 2nd and 3rd order columns are changing throughout the series of select calls, but no performance bottleneck it hit then.
I have a 'Select List' widget (P_FILTER) which I have set to return multiple values. In my report region, I have something like this
Select A from B where B.Col_1 IN upper(:P_FILTER)
When user selects only 1 value, the report is correct but if user selects more than 1 value (e.g. 2), the report does not return any rows. How do I get the report to recognize the multiple values returned by the LOV?
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 am working on Oracle apps. I have developed a custom screen. On the screen, if the user press 'F4' on final step, it will ask the dialogue..Do You want to save changes?
Yes No Cancel.
Even the user press the "Yes" , I want to check my own validation and commit when my validation get perfect.
I need to read a huge number of rows, say in lakhs and then need to populate it in data block. Since it is having huge data am never able to run the form. it hangs after some time. when i test with few rows it is working. so no problem in coding.
I have a question about select statements, as I am new to them and don't know how to work all the commands yet.
I'm making a select statement that is about half right... it is shown below:
select t.warehouse_id, t.quantity_on_hand, c.product_name from pahtest3.inventories t join pahtest3.product_information c using (product_id) WHERE warehouse_id in (7);
I need to take this select statement and make it so it shows all the products that don't have any quantities in the warehouse in addition to the ones that are already being shown in that select statement.
how to set the timing on for all SELECT statements in a procudeure...and i want that should come as a output for very SELECT statement slong with my original output.
I have a need to use the Alias name of a column within the same select statement( because I can't have another select statement using the first select as table - BO tool limitation).
Ex:
Select dept_id, agency, sum(quantity) as "sum_qty" where sum_qty > 500;
Currently oracle won't allow using alias name Sum_qty in the same select statement. Is there a way to use alias within the same select statement?
I'm trying to write a simple query so I can do some testing on my application. I am trying to do something like this:
SELECT Location, LEVEL,
FROM S_ORG_EXT
where Location = 'North America' and LEVEL ='Software' OR location = 'North America' and Active = 'N'
in the where statement, I have put in the 'Active' that isn't a column. I want to be able to be able to change that in the select part. But I am not able to do so.
this is what I have tried: SELECT Location, LEVEL, Active = 'N' --I want to change this in the to N or Y so I can get different results.
FROM S_ORG_EXT
where Location = 'North America' and LEVEL ='Software' OR location = 'North America' and Active = 'N'
insert into lookups values ('Rent' , 500); insert into lookups values ('Breakpoint' , 10);
create table products (id number, cost number, year varchar2(4));
insert into products values (1, 1000, '2011'); insert into products values (1, 2000, '2011'); insert into products values (2, 100, '2011'); insert into products values (3, 50, '2011');
commit;
I want to write a query which lists the IDs and the sum(cost), and a Y/N indicator which is set to 'Y' IF sum(cost) > ( (lookups.rent value) * (100 - lookups.breakpoint value))/100
I have written this query:
SELECT id, sum(cost)cost, year, CASE WHEN cost > ((SELECT amount [code]....... ORDER BY id;
This returns
ID COST YEAR YN --------- ---------- ---- - 1 1000 2011 Y 1 2000 2011 Y 2 100 2011 N 3 50 2011 N
The YN is correct, but it needs to sum the amounts. So there should only be one row for id1 = 3000.e.g.
ID COST YEAR YN --------- ---------- ---- - 1 3000 2011 Y 2 100 2011 N 3 50 2011 N
I am not sure how to do this. Or is there a better way of doing this than using CASE.
Quote: select a.contact, b.db_name from MOM.db_contacts@DB_LINK a, MOM.databases@DB_LINK b, where a.DB_ID=b.DB_ID and b.DB_name=(SELECT unique substr(upper(t.target_name), 1, instr(t.target_name,'_',1,1)-1) FROM mgmt_targets t JOIN mgmt_current_severity s ON s.target_guid = t.target_guid WHERE t.target_type = 'oracle_database' and UPPER(t.target_name) like '%11GDB%');
How can I add two more columns into the select statement and the two columns are in the tables that were in the sub query..I would like to have something like this:
Quote: select a.contact, b.db_name, COLUM1, COLUMN2 from MOM.db_contacts@DB_LINK a, MOM.databases@DB_LINK b, mgmt_targets t, mgmt_current_severity s where a.DB_ID=b.DB_ID and b.DB_name=(SELECT unique substr(upper(t.target_name), 1, instr(t.target_name,'_',1,1)-1) FROM mgmt_targets t JOIN mgmt_current_severity s ON s.target_guid = t.target_guid WHERE t.target_type = 'oracle_database' and UPPER(t.target_name) like '%11GDB%');
I 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.