My Asp.Net/C# application is connected to an Oracle database where it retrieves database values and also values calculated/returned from Oracle functions. My problem is that sometimes an Oracle function I calling returns a null value because of not correct input parameters which will cause Oracle function to (I think) return an null value. My problem and question is how to catch/obtain if he Oracle function returns a null value? Oracle function should return a decimal value if correct input parameters. Below is my row of code that crashes when Oracle function returns a null value in case of incorrect input parameters.
Why does is the code blow reuturning a null for a simple subtraction and division?I am trying to do 4-13/9 for one and 4-22/9 for 22
select unit, term_1201,term_1202,r_slope,r_intercept, (r_intercept - term_1201) / decode((r_slope),0,1) as ONE, (r_intercept - term_1202) / decode((r_slope),0,1) as TWO
How can i catch the exception thrown by a PLSQL_TABLE.POPULATE_BLOCK. Actually i want to display alert messages if POPULATE_BLOCK doesn't contain any records. i wrote the PLSQL_TABLE.POPULATE_BLOCK(bk_data, 'block name');
In query procedure after that if i write any code for alert message then it is not getting executed it may be because of exception is handled by PLSQL_TABLE.POPULATE_BLOCK
SQL > conn ashish/pass@conn_string ERROR: ORA-28002: the password will expire within 1 days ---------------------------------------------------------- I want to catch this eror in forms: catch the error code ORA-28002 in ON-ERROR trigger and ON-Message trigger, however its not getting caught in the trigger. how to catch the warning/error ORA-28002 in oracle forms?
I have a functional index.. which doesn't allow duplicate based on condition.I want to catch the exception and print the customized message but it always override my message.
create or replace function i_func (tt_id in number, d_date date, stat in varchar2) return varchar2 [code].....
I have a Batch file(.bat) where I get the user name password ans schema name as a input . Based on that input I connect the sql and run some update query from bat file itself. Now I have issue ,when the user give wrong credintials it ask for the credintials again.
Is there any way to check the credintials of oracle and give the invalid credintial error via bat file. The sample of my Bat file is as follows.
@echo off for /f %%i in ('sqlplus -s usename/password@db @H: est_db_connection.sql') do @set count=%%i echo %count% IF %count% EQU 1 ECHO ("Database connection working fine") IF %count% NEQ 1 ECHO ("Not able to connect to database")
I have no knowledge about Barcode. The problem is an issue of Loyalty Cards of a Hotel and Restaurant to various customers and then these cards will be presented by the customers time to time in the Hotel as well as Restaurant. The Owner of the Hotel and Restaurant wants to generate separate barcode for each card and when this card will be presented then the bar code reader will readout the code and the system will calculate the amount of discount/rebate. Because if the data entry operator enter the code of the card through key board the it will be a chance of leakage or misuse of that card.
I have to compare my SVN source code (packages, views etc) with the production code in the database like views etc (actually we are not sure that what we have in the svn is the final version of production code, we have objects created in the production database, but we don't have latest scripts for that. we have to deploy the svn code in the UNIX box).
So here the comparison is between the OS files and the database objects.
I thought I would get scripts of all the packages, views etc from the production database by using DBMS_METADATA or some utility and save the code in OS files then compare one svn file with OS file manually by using some comparison tools e.g toad provide one comparison tool.
I downloaded oracle sql developer, i type my code into a worksheet but if i use the run statement option, it asks me to make a connection. I dont want to make a connection, just test the data locally.However, even if I do try and make a connection, i get ora-12560 error (local connection).
I just want to type up some data to make some table and test to retrieve or manipulate the data. I'll use any program, command line or gui.
I am running a GROUP BY query on a few columns of enumerated data like:
select count(*), Condition, Size group by Condition, Size;
COUNT(*) CONDITION SIZE -------- ---------- -------- 3 MINT L 2 FAIR L 4 FAIR M 1 MINT S
Well, let's say I also have a timestamp field in the database. I cannot run a group by with that involved because the time is recorded to the milisec and is unique for every record. Instead, I want to include this in my group by function based on whether or not it is NULL.
For example:
COUNT(*) CONDITION SIZE SOLDDATE -------- ---------- -------- ---------- 3 MINT L ISNULL 2 FAIR L NOTNULL 2 FAIR M NOTNULL 2 FAIR M ISNULL 1 MINT S ISNULL
I want to implement a business rule such as we have for each id at most 1 dat null. So, I've created this unique index on test.
create unique index x_only_one_dat_cess_null on test(id, case when dat_cess is null then 'NULL' else to_char(dat_cess, 'dd/mm/yyyy') end);
insert into test values (1, sysdate); insert into test values (1, sysdate - 1); insert into test values (1, null); insert into test values (1, null); -- ----- insert into test values (2, sysdate); insert into test values (2, sysdate - 1); insert into test values (2, null);
The 4th insert will cause an error and this is what I wanted to implement. OK. Now the problem is that for non-null values of dat, we can't have data like this
because of the unique index (the 2nd and the 3rd row are equal). So just for learning purposes, how could we allow at most one null value of dat and allow duplicates for non-null values of dat.
SQL> Describe Stu_Table Name Null? Type ----------------------------------------- -------- ---------------------------- STU_ID VARCHAR2(2) STU_NAME VARCHAR2(10) STU_CLASS VARCHAR2(10)
now when i try to modify this Stu_id column to not null its give me error.
SQL>ALTER TABLE Stu_Table MODIFY Stu_Id int(3)not null; ALTER TABLE Stu_Table MODIFY Stu_Id int(3)not null * ERROR at line 1: ORA-01735: invalid ALTER TABLE option
and when i try to add new column with not null its also gives me error
SQL> ALTER TABLE Stu_Table add C1_TEMP integer NOT NULL; ALTER TABLE Stu_Table add C1_TEMP integer NOT NULL * ERROR at line 1: ORA-01758: table must be empty to add mandatory (NOT NULL) column
I have 8 columns. Some of them might be null.I want to display all 8 columns in my result. Not null columns will be first and null at the end.Here is a sample data :
Suppose that, I have two tables: emp, dept emp records the empid, emp_name, deptid dept records the deptid, dept_name
Here is a record, it's a president or some special position in company, so it's deptid is set to NULL. Here comes the question, how can I print all the emp_name with their deptartment name?
I know how to print all the emp_name with their department name if they have dept_id, but is that possible that I merge the record with dept_id NULL?
I need to retrieve the records where the involvement is either a person or an organization. Using the code below i receive an error stating that the outer join operator is not allowed in the operand OR:
(( INVOL1.PERSON_IDENTIFIER(+)=ALL_PERSONS.IDENTIFIER ) OR ( INVOL1.OUNIT_IDENTIFIER_INV=INVOL1_ORG.IDENTIFIER(+) ))
If I change it to an and query it will only retrieve the records where there is a person and an organisation as the involvement but I need this option as well as one or the other.
I would like to backup all source code (packages, procedures, functions, etc) every day automatically. Is there a built-in feature of Oracle to do this, I've been going through the Toad IDE and its getting to be too time consuming.
I assume I could use the export command, but not entirely sure what to specify.
I would like to backup a few tables along all code and set something in place (trigger maybe?) to send me an email when a modification is made to the production code environment.
I am fighting with some code to work in IE7. It is currently working in Firefox.
A little bit more on the context of the situation is that I am entering the code as a personalization on an Oracle Self Service Page. I am entering in as a raw text personalization.
I have the following data (columns IDx, STARTx and DURATION) and want to create the column RESULT. Example:
create table zTEST ( IDx number, STARTx number, DURATION number, RESULT number ); insert into zTEST (IDx, STARTx, DURATION, RESULT) values ( 1 , null , null , null );
[code]...
The logic behind the table is like this: when there is a Start-ID and a Duration, the field Result shall show the Start-ID for the next records (Duration period). Even if there is a new Start-ID in row 9, it is ignored since threre is already a current signal from row 6 which is still running.
this is the table i have in which repeated itemids for different dates,for example itemid 205 and 203 comes 2 times because that item was consumed again and again in a different date. like this the table data has more than a 20 thousand records;
In which i need to select the last updated dates itemid from this table, because same item id could be consumed 'n' number of times so i need to select it as per the last date or latest dates itemid from this table for each and every item, so how can i select it?
I have a problem in running a sql query.I have a dataset with the following details. Product name,product status,approval date in table product_details. I have a code as follows
select Product_name, Product_status, approval_date, case when product_status ='Cancelled' or product_status ='Stopped' then approval_date='N/A' when product_status='Active' then NVL2(approval_date,cast(appoval_date as nvarchar2(30)),'Null') when product_status='Completed' then NVL2(approval_date,cast(appoval_date as nvarchar2(30)),'Null1') when product_status='Planned' then NVL2(approval_date,cast(appoval_date as nvarchar2(30)),'Null2') end as DER_approval_date
from product_details
but i have a error in running this code saying character mismatch.
with the code below i have created 2 varaibles v_start_date and v_finish_date, i have inputs for them, thats fine the problem is when the inputs are empty, i have put a ELSIF statement in the begin section of the code, now if the variables have input from the textbox's then it works fine but if they are empty, the programme reads into the if statement executes that bit of code but doesn't seem to open the cursor up and execute that bit of code.
DECLARE v_start_date enrollments.enrollment_date%TYPE:= :START_DATE; v_finish_date enrollments.enrollment_date%TYPE := :FINISH_DATE; CURSOR no_grades_cur IS SELECT class_id,stu_id, status FROM enrollments
There are two List boxes namely :list_all (All) and :list_sel(Selected). :list_all show some data. What I want is to insert / delete records from the list_all to list_sel or vice versa using the buttons ( e.g.For one record using > and for all >>). The next step is to call a report to show data from the :list_sel.
I have populated the list_all with using the following query.
"select distinct all_ded,to_char(all_ded_id) from salary_temp order by all_ded"
