PL/SQL :: What Kind Of Exception Can Raise A Select Statement Excluding NO_DATA_FOUND
Oct 23, 2013
what kind of exception can raise a select statement excluding NO_DATA_FOUND; For example i try to run the following: select * from departments where departments_id=11; In a situation like that what kind of error oracle can raise?I'm asking this because i have some procedure that just do a select statment and i want to know if there is a valid reason to put the exception others at the end of the procedure.
I was going through the link: URL....Here within the box under the title 'Exception Handling -- Quick Facts and Tips', it states, Once you have handled an exception, normal program execution continues. You are no longer in an "exception" situation.
I wanted to verify this and used the below:The DDL and DMLs:
CREATE TABLE emp(empno NUMBER(4), ename VARCHAR2(10)); INSERT INTO emp VALUES(7369,'SMITH');
The program:
DECLARE x VARCHAR2(10); BEGIN SELECT ename INTO x FROM emp WHERE empno=4567; SELECT ename INTO x FROM emp WHERE empno=7369; DBMS_OUTPUT.PUT_LINE(x); EXCEPTION WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.PUT_LINE('ERROR OCCURED'); END;
The first SELECT will raise NO_DATA_FOUND exception. Even though I have handled it, the second SELECT is not executing.But the link says, that normal program execution will continue. So, Iam expecting the second SELECT statement to work.
create or replace procedure set_update(p_name in varchar2,p_email in varchar2)is l_data user_details%rowtype; beginselect * into l_data from user_details ud where ud.name = p_name and ud.email = p_email; if l_data.name = p_name and l_data.email = p_email then update user_details set last_login_date = sysdate , date_updated = sysdate where name = p_name and email=p_email; end if; exception when no_data_found then insert into user_details(user_id,name,last_login_date,date_updated,date_created,email) values (l_data.user_id,p_name,l_data.last_login_date,l_data.date_updated,sysdate,p_email);end set_update;
This is my procedure will pass two parameters if it is available in table it will update other wise insert that data in table. My problem is while data is not available that data is inserted into table but that not inserted into table.
how 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....
I'm trying to figure out how to simply check and see if a given item is in a table, and if its not, then raise an exception.
for example i have a table employees and each employee has a primary key employID. I need to write a procedure where employID is given as a parameter and if the one given isnt in the table then raise an exception.
My requirement, if there is no record in emp table when validate the EMP_NO_CHK text field, i need to set the focus on that field (EMP_NO_CHK) itself. But while execute the following code, I got error.chieve the task.
--EMP_NO_CHK_WHEN_VALIDATE_ITEM Trigger ----------------------------------- Declare cursor c is Select * from emp where Emp_no = :header.empno; c1 emp%rowtype; n NUMBER;
I have a form (StaffDetail) with three different blcoks. One of them is an Application Assignment block which consists of nothing but Assignment Type, Staff (Name), Last Updated By and Last Updated Date.. The Assignment Type and Staff has LOVs assigned to them individually.. Assignment type lets me pick all different types except for Project Manager. As soon as I select this option, i get the following error :
This does not even let me select any other Assignment type, then i have to go close all sessions and come back into the same screen.
Also, this form was first created and tested on the development environment and later moved to QA environment. All selections work in the development environment.. I checked for the roles in QA for individual Users..
I have Written this code in WHEN-VALIDATE-ITEM-TRIGGER on PO_DATE field
if not( :PO_HEADER.PO_DATE IS NOT NULL ) then :po_header.po_date := trunc(sysdate); end if; if trunc(:PO_HEADER.PO_DATE)>trunc(sysdate) then displayerror.errmsg('PO date cannot be future date!');
[code]...
when i am navigating through po_DATE field in the form its showing the error that
I am trying to search a way to get the SQL statement that caused an exception withing an oracle function. I tried:
SELECT sql_text from v$session ses, v$sql sql where sql.sql_id = ses.prev_sql_id and ses.sid = sys_context('userenv','SID') AND ROWNUM = 1;
but this doesn't always return the last statement that the function has executed. if needed i can send the complete script for the function and its tables and stored procedures for testing.
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 ?
My need is to build columns for each month in table and find changes between monthes. My first try works fine, but next step should be performed using wider period.
with t2 as ( select date '2008-02-29' as arcdate, 1867763 as cid, 2 as dealtypeid, 840 as currencyid, 3649509 as dealid, 7.5 as avalue from dual union all select date '2008-02-29' as arcdate, 1867763 as cid, 2 as dealtypeid, 826 as currencyid, 3611270 as dealid, 12 as avalue from dual union all select date '2008-02-29' as arcdate, 1867763 as cid, 3 as dealtypeid, 826 as currencyid, 3735006 as dealid, 12 as avalue from dual union all select date '2008-01-31' as arcdate, 1867763 as cid, 3 as dealtypeid, 826 as currencyid, 3735006 as dealid, 13.5 as avalue from dual union all select date '2008-01-31' as arcdate, 1867763 as cid, 2 as dealtypeid, 826 as currencyid, 3611270 as dealid, 13 as avalue from dual union all [code]....
As you can see, I've got virtual table named jan2008, feb2008, mar2008, apr2008 left-joined to tt1 table. But what should I do with much more wider period, for example 5 years? Can I do it without creating virtual tables for each month?
I am returning a refcursor as OUT parameter in my stored procedure. I would like to capture a no data found for the refcursor. Is there a way I can raise the exception without compromising the performance?
I have tried the below options that are not working.
1. If I run a SELECT query to check for records and then OPEN the refcursor for that SELECT, then it takes a performance hit as I am reading the table twice.
2. I can FETCH a refcursor into a table type and check the count in the table to raise exception.But once I fetch from a refcuror, the data is gone. So, this option does not work either.
I read that few privilegs can not be granted to roles like 'UNLIMITED TABLESPACE ' and they need to granted to user directly.
1. Is there any reason behind that few privileges cant be granted to roles or is it just oracle design. 2. what kind of privileges cant be assigned to roles.
i've a problem regarding my code at line: 76. URL....
If i put a RAISE_APPLICATION_ERROR just before: SELECT ID_GIOCATORE INTO CONTR_GIOCATORE2 FROM COMP_CONTR_GIOCATORE_PARTITA GC JOIN CONTRATTO C ON GC.ID_CONTRATTO = C.ID_CONTRATTO WHERE GC.ID_PARTITA = :NEW.ID_PARTITA AND (C.ID_CASELLA = 28 OR C.ID_CASELLA = 12) AND C.ID_CASELLA <> :NEW.ID_CASELLA AND [code]....
But if i put the RAISE_APPLICATION_ERROR just after this statement and before IF(CONTR_GIOCATORE2 IS NOT NULL AND CONTR_GIOCATORE2 = CONTR_GIOCATORE) THEN, nothing happens after the insert(that goes well) and the trigger doesn't do his job(insert,update etc). if i do that select, i got the no data found, so i put the exception to set the variable CONTR_GIOCATORE2 to NULL.
It seems certain queries search by the number of days to ship(number of days between the order and shipping dates). What kind of index would improve the performance of these queries?
APEX 4.2Oracle 11g Database We are using the standard exception handler that was introduced in APEX 4.1, and we have code in packages & procedures in the database (following proper processes of keeping code in the database where possible). When an exception is found in the procedures/ packages/functions, should the APEX application level exception handler catch any errors that occur or should they be handled in the package/procedure/function they occurred in? Why I ask if, we right now have exception handling code in the pl/code bodies BUT they write their errors to the same table that Apex's Exception handler does, but the errors are NOT presented to the user using the APEX exception handling mechanism.
I have to implement exception handling in the exception block of a trigger, Quote:exception
when ora_java.java_error then message( 'Unable to call out to java, ' || ora_java.last_error ); ORA_JAVA.CLEAR_EXCEPTION;
when ORA_JAVA.EXCEPTION_THROWN then ex := ORA_JAVA.LAST_EXCEPTION; message( Exception_.toString(ex)); -- lv_exception := Exception_.getMessage(ex);
I get an error for the line: 'message( Exception_.toString(ex));'I have imported the java classes FException et IObject with their methods.
I have to create a Web Service Client, so I wonder if the paragraph Quote:when ORA_JAVA.EXCEPTION_THROWN then ex := ORA_ JAVA. LAST_ EXCEPTION; is mandatory.
